Initial commit.

LICENSE.txt

@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
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+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
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+express Statement of Purpose.
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+4. Limitations and Disclaimers.
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+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
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game.conf

@@ -0,0 +1,8 @@
+name = firefly
+title = Firefly
+description = TBD
+allowed_mapgens = singlenode
+disallowed_mapgens = v5, v7, flat, fractal, valleys, carpathian, v6
+min_minetest_version = 5.10
+disabled_settings = !enable_damage, creative_mode
+author = Signal

mods/firefly_admin/init.lua

@@ -0,0 +1,7 @@
+local ns = firefly
+
+-- Determine whether the target player is an admin.
+local admin = minetest.settings:get("name") -- Assume this will never be changed live.
+function ns.is_admin(name)
+    return name == admin or name == "singleplayer" and firefly.singleplayer_admin
+end

mods/firefly_admin/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_admin
+depends = firefly_base

mods/firefly_base/init.lua

@@ -0,0 +1,236 @@
+-- Enable Minetest forever.
+minetest = core
+
+firefly = {
+    -- Set to `true` to enable testing admin things without having to open a server.
+    singleplayer_admin = true
+}
+local ns = firefly
+
+function include(file)
+    return dofile(minetest.get_modpath(minetest.get_current_modname()).."/"..file)
+end
+
+function enum(cases)
+    local out = {}
+    local i = 0
+    for _, x in ipairs(cases) do
+        out[x] = i
+        i = i +1
+    end
+    return out
+end
+
+say = minetest.chat_send_all
+
+function extend(dst, src)
+    for k, v in pairs(src) do
+        dst[k] = v
+    end
+    return dst
+end
+
+Promise = {
+    resolve = function(e, ...)
+        if e.resolved then return end
+        e.resolved = true
+        if e._after then e._after(...) end
+    end,
+    after = function(e, fn)
+        e._after = fn
+    end
+}
+Promise.__index = Promise
+setmetatable(Promise, {
+    __call = function(_, fn)
+        local e = {resolved = false}
+        setmetatable(e, Promise)
+        fn(function(...) e:resolve(...) end)
+        return e
+    end
+})
+
+EventTarget = {
+    init = function()
+        local e = {
+            listeners = {}
+        }
+        return setmetatable(e, EventTarget)
+    end,
+    listen = function(e, channel, fn)
+        if not e.listeners[channel] then e.listeners[channel] = {} end
+        local l = e.listeners[channel]
+        l[#l +1] = fn
+    end,
+    unlisten = function(e, channel, fn)
+        if not e.listeners[channel] then return end
+        local l = e.listeners[channel]
+        local idx = table.indexof(l, fn)
+        if idx < 0 then return end
+        table.remove(l, idx)
+    end,
+    dispatch = function(e, channel, ...)
+        local l = e.listeners[channel]
+        if not l then return end
+        for i = 1, #l do
+            l[i](...)
+        end
+    end
+}
+EventTarget.__index = EventTarget
+setmetatable(EventTarget, {
+    __call = function(_, ...) return EventTarget.init(...) end
+})
+
+-- HACK: Lookup table for getting a rotation from a
+-- facedir (because Minetest doesn't have any way
+-- to get this information normally).
+local facedir_rotations = {
+    -- +Y
+    [0] = vector.new(0, 0, 0),
+    [1] = vector.new(0, math.pi * 1.5, 0),
+    [2] = vector.new(0, math.pi * 1.0, 0),
+    [3] = vector.new(0, math.pi * 0.5, 0),
+    -- +Z
+    [4] = vector.new(math.pi * 1.5, 0, 0),
+    [5] = vector.new(0, math.pi * 1.5, math.pi * 1.5),
+    [6] = vector.new(math.pi * 0.5, math.pi * 1.0, 0),
+    [7] = vector.new(0, math.pi * 0.5, math.pi * 0.5),
+    -- -Z
+    [8] = vector.new(math.pi * 0.5, 0, 0),
+    [9] = vector.new(0, math.pi * 1.5, math.pi * 0.5),
+    [10] = vector.new(math.pi * 1.5, math.pi * 1.0, 0),
+    [11] = vector.new(0, math.pi * 0.5, math.pi * 1.5),
+    -- +X
+    [12] = vector.new(0, 0, math.pi * 0.5),
+    [13] = vector.new(math.pi * 1.5, math.pi * 1.5, 0),
+    [14] = vector.new(0, math.pi * 1.0, math.pi * 1.5),
+    [15] = vector.new(math.pi * 0.5, math.pi * 0.5, 0),
+    -- -X
+    [16] = vector.new(0, 0, math.pi * 1.5),
+    [17] = vector.new(math.pi * 0.5, math.pi * 1.5, 0),
+    [18] = vector.new(0, math.pi * 1.0, math.pi * 0.5),
+    [19] = vector.new(math.pi * 1.5, math.pi * 0.5, 0),
+    -- -Y
+    [20] = vector.new(0, 0, math.pi * 1.0),
+    [21] = vector.new(0, math.pi * 0.5, math.pi * 1.0),
+    [22] = vector.new(0, math.pi * 1.0, math.pi * 1.0),
+    [23] = vector.new(0, math.pi * 1.5, math.pi * 1.0),
+}
+function ns.facedir_to_rotation(facedir)
+    return facedir_rotations[facedir] or minetest.facedir_to_dir(facedir):dir_to_rotation()
+end
+
+function ns.rotate_selectionbox(box, rot)
+    local a = vector.new(box[1], box[2], box[3]):rotate(rot)
+    local b = vector.new(box[4], box[5], box[6]):rotate(rot)
+    return {
+        a.x, a.y, a.z,
+        b.x, b.y, b.z
+    }
+end
+
+function ns.register_item(name, def)
+    local needs_alias
+    if not name:find ":" then
+        def._name = name
+        name = "firefly:"..name
+        needs_alias = true
+    end
+    
+    minetest.register_craftitem(":"..name, def)
+    
+    if needs_alias then
+        minetest.register_alias(def._name, name)
+    end
+end
+
+function ns.solid_color_frames(frames)
+    local out = "[fill:1x"..#frames..":0,0:#000"
+    for i, x in ipairs(frames) do
+        out = out.."^[fill:1x3:0,"..(i -1)..":"..x
+    end
+    return out
+end
+
+local digit_widths = {
+    [0] = 7,
+    6,
+    7,
+    7,
+    7,
+    7,
+    7,
+    7,
+    7,
+    7,
+}
+function ns.texture_from_number(num)
+    local w = 0
+    local digits = {}
+    repeat
+        w = w +1
+        digits[w] = num %10
+        num = math.floor(num /10)
+    until num <= 0
+    local width = 0
+    local out = ""
+    for i = w, 1, -1 do
+        out = out..":"..width..",1=firefly_number_"..digits[i]..".png"
+        width = width +digit_widths[digits[i]] +(i > 1 and 2 or 0)
+    end
+    return "[combine:"..width.."x16"..out, width
+end
+
+function ns.read_file(path)
+    local f = io.open(path)
+    if not f then return false end
+    local out = f:read("a")
+    f:close()
+    return out
+end
+
+function ns.manhattan_distance(a, b)
+    return math.abs(b.x -a.x) +math.abs(b.y -a.y) +math.abs(b.z -a.z)
+end
+
+minetest.register_lbm {
+    name = ":firefly:on_load",
+    nodenames = {"group:call_on_load"},
+    action = function(pos, node)
+        minetest.registered_nodes[node.name].on_load(pos)
+    end
+}
+
+ns.timer = EventTarget()
+
+local last_time = minetest.get_us_time()
+minetest.register_globalstep(function()
+    local time = minetest.get_us_time()
+    if time -last_time > 1000000 then
+        ns.timer:dispatch("every_second")
+        last_time = time
+    end 
+end)
+
+minetest.register_entity(":display", {
+    initial_properties = {
+        visual = "sprite",
+        textures = {"blank.png"},
+        pointable = false,
+        static_save = false
+    },
+    on_activate = function(e)
+        e.object:set_armor_groups{immortal = 1}
+    end
+})
+
+
+if minetest.get_modpath("testtools") then
+    minetest.override_item("testtools:param2tool", {
+        pointabilities = {
+            nodes = {["group:everything"] = true},
+            objects = {["group:immortal"] = false}
+        }
+    })
+end

mods/firefly_base/mod.conf

@@ -0,0 +1 @@
+name = firefly_base

mods/firefly_characters/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_characters
+depends = firefly_player

mods/firefly_characters/models/firefly_head.gltf

@@ -0,0 +1 @@
+{"asset":{"version":"2.0","generator":"Blockbench 4.12.5 glTF exporter"},"scenes":[{"nodes":[2],"name":"blockbench_export"}],"scene":0,"nodes":[{"translation":[0,-2.5,0],"name":"Head","mesh":0},{"translation":[0,-2.5,0],"name":"Hat Layer","mesh":1},{"children":[0,1]}],"bufferViews":[{"buffer":0,"byteOffset":0,"byteLength":288,"target":34962,"byteStride":12},{"buffer":0,"byteOffset":288,"byteLength":288,"target":34962,"byteStride":12},{"buffer":0,"byteOffset":576,"byteLength":192,"target":34962,"byteStride":8},{"buffer":0,"byteOffset":768,"byteLength":72,"target":34963},{"buffer":0,"byteOffset":840,"byteLength":288,"target":34962,"byteStride":12},{"buffer":0,"byteOffset":1128,"byteLength":288,"target":34962,"byteStride":12},{"buffer":0,"byteOffset":1416,"byteLength":192,"target":34962,"byteStride":8},{"buffer":0,"byteOffset":1608,"byteLength":72,"target":34963}],"buffers":[{"byteLength":1680,"uri":"data:application/octet-stream;base64,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"}],"accessors":[{"bufferView":0,"componentType":5126,"count":24,"max":[2.5,5,2.5],"min":[-2.5,0,-2.5],"type":"VEC3"},{"bufferView":1,"componentType":5126,"count":24,"max":[1,1,1],"min":[-1,-1,-1],"type":"VEC3"},{"bufferView":2,"componentType":5126,"count":24,"max":[0.499755859375,0.249755859375],"min":[0.000244140625,0.000244140625],"type":"VEC2"},{"bufferView":3,"componentType":5123,"count":36,"max":[23],"min":[0],"type":"SCALAR"},{"bufferView":4,"componentType":5126,"count":24,"max":[2.8125,5.3125,2.8125],"min":[-2.8125,-0.3125,-2.8125],"type":"VEC3"},{"bufferView":5,"componentType":5126,"count":24,"max":[1,1,1],"min":[-1,-1,-1],"type":"VEC3"},{"bufferView":6,"componentType":5126,"count":24,"max":[0.999755859375,0.249755859375],"min":[0.500244140625,0.000244140625],"type":"VEC2"},{"bufferView":7,"componentType":5123,"count":36,"max":[23],"min":[0],"type":"SCALAR"}],"materials":[{"pbrMetallicRoughness":{"metallicFactor":0,"roughnessFactor":1,"baseColorTexture":{"index":0}},"alphaMode":"MASK","alphaCutoff":0.05,"doubleSided":true}],"textures":[{"sampler":0,"source":0,"name":"artifact_key.png"}],"samplers":[{"magFilter":9728,"minFilter":9728,"wrapS":33071,"wrapT":33071}],"images":[{"mimeType":"image/png","name":"firefly_character_2.png","uri":"firefly_character_2.png"}],"meshes":[{"primitives":[{"mode":4,"attributes":{"POSITION":0,"NORMAL":1,"TEXCOORD_0":2},"indices":3,"material":0}]},{"primitives":[{"mode":4,"attributes":{"POSITION":4,"NORMAL":5,"TEXCOORD_0":6},"indices":7,"material":0}]}]}

mods/firefly_font/fonts/change_atlas_cell_size.py

@@ -0,0 +1,61 @@
+from PIL import Image
+
+def adjust_font_atlas(input_path, output_path, current_width, current_height, new_width, new_height):
+    """
+    Adjusts the cell dimensions of a pixel font atlas sprite sheet by creating larger cells
+    and placing the original sprites in the top-left corner of each new cell, filling
+    the extra space with the background color detected from the top-left pixel of the
+    original image. This allows for manual extension of sprites without repositioning them.
+
+    Args:
+        input_path (str): Path to the input atlas image.
+        output_path (str): Path to save the output atlas image.
+        current_width (int): Current width of each cell (in pixels).
+        current_height (int): Current height of each cell (in pixels).
+        new_width (int): New larger width for each cell (in pixels).
+        new_height (int): New larger height for each cell (in pixels).
+    """
+    if new_width < current_width or new_height < current_height:
+        raise ValueError("New dimensions must be larger than the current dimensions.")
+
+    img = Image.open(input_path)
+    width, height = img.size
+
+    if width % current_width != 0 or height % current_height != 0:
+        raise ValueError("Image dimensions are not multiples of the current cell dimensions.")
+
+    cols = width // current_width
+    rows = height // current_height
+
+    # Create a new image with the same mode
+    new_img = Image.new(img.mode, (cols * new_width, rows * new_height))
+
+    # Detect background color from top-left pixel (assuming it's background)
+    bg_color = img.getpixel((0, 0))
+
+    # Fill the new image with the background color
+    new_img.paste(bg_color, (0, 0, new_img.width, new_img.height))
+
+    # Copy each original sprite into the top-left of its new larger cell
+    for r in range(rows):
+        for c in range(cols):
+            # Crop the original sprite
+            left = c * current_width
+            top = r * current_height
+            right = left + current_width
+            bottom = top + current_height
+            sprite = img.crop((left, top, right, bottom))
+
+            # Paste into new position
+            new_left = c * new_width
+            new_top = r * new_height
+            new_img.paste(sprite, (new_left, new_top))
+
+    # Save the new atlas
+    new_img.save(output_path)
+
+
+# Example usage:
+base_path = "/Users/iboettcher/eclipse-workspace/firefly/mods/firefly_font/fonts/"
+adjust_font_atlas(f'{base_path}firefly_normal.png',
+                  f'{base_path}firefly_wide.png', 8, 17, 17, 17)

mods/firefly_font/fonts/firefly_normal.json

@@ -0,0 +1,20 @@
+{
+    "A": {
+        "width": 7,
+        "height": 10,
+        "base": 0,
+        "advance": 2
+    },
+    "B": {
+        "width": 7,
+        "height": 10,
+        "base": 0,
+        "advance": 2
+    },
+    "C": {
+        "width": 7,
+        "height": 10,
+        "base": 0,
+        "advance": 2
+    }
+}

mods/firefly_font/init.lua

@@ -0,0 +1,46 @@
+local ns = firefly
+local modname = minetest.get_current_modname()
+
+ns.fonts = {}
+
+function ns.rasterize(str, font, max_width)
+    if not font then font = "firefly_normal" end
+    local atlas = ns.fonts[font] or minetest.parse_json(ns.read_file(minetest.get_modpath(modname).."/fonts/"..font..".json"))
+    if not ns.fonts[font] then
+        ns.fonts[font] = atlas
+    end
+    
+    local newline = string.byte("\n", 1)
+    
+    local out = {}
+    local width = 0
+    local height = 0
+    local x = 0
+    local y = 0
+    for i = 0, #str do
+        local char = str:byte(i)
+        if not char then goto continue end
+        if char == newline then
+            goto continue
+        end
+        local glyph = atlas[string.char(char)]
+        
+        local num = #out
+        out[num +1] = ":"
+        out[num +2] = x
+        out[num +3] = ","
+        out[num +4] = y
+        out[num +5] = "="
+        out[num +6] = font
+        out[num +7] = "/firefly_char_"
+        out[num +8] = char
+        out[num +9] = ".png"
+        
+        x = x +glyph.width +glyph.advance
+        if x > width then
+            width = x
+        end
+        ::continue::
+    end
+    return "[combine:"..width.."x"..height..table.concat(out)
+end

mods/firefly_font/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_font
+depends = firefly_base

mods/firefly_hud/init.lua

@@ -0,0 +1,289 @@
+
+local ns = firefly
+
+ns.hud_types = {}
+ns.Element = {
+    animate = function(e, target)
+        if not e.targets then e.targets = {} end
+        local time = minetest.get_us_time()
+        for k, v in pairs(target) do
+            e.targets[k] = {
+                ref = {
+                    time = time,
+                    value = e[k]
+                },
+                target = {
+                    time = time +(v.duration or 1) *1000000,
+                    value = v.value
+                },
+                ease_fn = v.ease_fn
+            }
+        end
+    end
+}
+
+local function bezier_ease(t, x1, y1, x2, y2)
+    if t <= 0 then return 0 end
+    if t >= 1 then return 1 end
+
+    local low = 0
+    local high = 1
+    local epsilon = 1e-6
+    local iterations = 0
+    while (high - low > epsilon) and (iterations < 100) do
+        local mid = (low + high) / 2
+        local x = 3 * mid * (1 - mid) ^ 2 * x1 + 3 * mid ^ 2 * (1 - mid) * x2 + mid ^ 3
+        if x < t then
+            low = mid
+        else
+            high = mid
+        end
+        iterations = iterations + 1
+    end
+    local u = (low + high) / 2
+
+    local y = 3 * u * (1 - u) ^ 2 * y1 + 3 * u ^ 2 * (1 - u) * y2 + u ^ 3
+    return y
+end
+
+local function interpolate(ref, target, t, x1, y1, x2, y2)
+    local eased_t = bezier_ease(t, x1 or 0, y1 or 0, x2 or 1, y2 or 1)
+    return ref + (target - ref) * eased_t
+end
+ns.interpolate = interpolate
+
+function ns.register_hud_type(def)
+    ns.hud_types[def.name] = setmetatable(def, {__index = ns.Element})
+end
+
+function ns.validate_type(elem, type)
+    if not ns.hud_types[elem.type] then
+        warn("Unknown HUD type `"..type.."` for element `"..elem.name.."`; ignoring.")
+        return false
+    end
+    if ns.hud_types[type].required_fields then
+        for _, field in ipairs(ns.hud_types[type].required_fields) do
+            if elem[field] == nil then return false end
+        end
+    end
+    return true
+end
+
+function ns.hud_add(m, def)
+    if not ns.validate_type(def, def.type) then
+        return false
+    end
+    local type = ns.hud_types[def.type]
+    if type.defaults then
+        def = extend(table.copy(type.defaults), def)
+    end
+    -- Create a random name if none is given, since the
+    -- assumption is that the user doesn't care about the name.
+    if not def.name then
+        def.name = ""..math.random()
+    end
+    local el
+    if m.hud[def.name] then
+        el = m.hud[def.name]
+        -- Simply write all modified fields to the existing element.
+        extend(el, def)
+    else
+        el = setmetatable(def, {__index = type})
+        m.hud[def.name] = el
+        el:add(m)
+    end
+    return el
+end
+
+function ns.update_poi(m)
+    for _, x in pairs(m.poi) do
+        x:remove(m)
+    end
+    m.poi = {}
+    for _, x in ipairs(minetest.find_nodes_in_area(m.pos:offset(-100, -100, -100), m.pos:offset(100,100,100), "group:poi")) do
+        m.poi[#m.poi +1] = ns.hud_add(m, {
+            name = "poi:"..x:to_string(),
+            type = "poi",
+            world_pos = x,
+        })
+    end
+end
+
+local default_ease_fn = {0,0,1,1}
+minetest.register_globalstep(function(dtime)
+    local time = minetest.get_us_time()
+    for _, m in pairs(ns.players) do
+        for k, el in pairs(m.hud) do
+            if el.remove_after then
+                el.remove_after = el.remove_after -dtime
+                if el.remove_after < 0 then
+                    el:remove(m)
+                    m.hud[k] = nil
+                end
+            end
+            
+            if el.targets and next(el.targets) then
+                local changes = {}
+                for key, target in pairs(el.targets) do
+                    local fac = (time -target.ref.time) /(target.target.time -target.ref.time)
+                    local ease_fn = target.ease_fn or default_ease_fn
+                    local value
+                    if el.field_types[key] == "vec2" then
+                        value = {
+                            x = interpolate(target.ref.value.x, target.target.value.x, fac, ease_fn[1], ease_fn[2], ease_fn[3], ease_fn[4]),
+                            y = interpolate(target.ref.value.y, target.target.value.y, fac, ease_fn[1], ease_fn[2], ease_fn[3], ease_fn[4])
+                        }
+                        if fac >= 1 then
+                            el.targets[key] = nil
+                        end
+                    elseif el.field_types[key] == "color" then
+                        value = {
+                            r = interpolate(target.ref.value.r, target.target.value.r, fac, ease_fn[1], ease_fn[2], ease_fn[3], ease_fn[4]),
+                            g = interpolate(target.ref.value.g, target.target.value.g, fac, ease_fn[1], ease_fn[2], ease_fn[3], ease_fn[4]),
+                            b = interpolate(target.ref.value.b, target.target.value.b, fac, ease_fn[1], ease_fn[2], ease_fn[3], ease_fn[4]),
+                            a = interpolate(target.ref.value.a, target.target.value.a, fac, ease_fn[1], ease_fn[2], ease_fn[3], ease_fn[4]),
+                        }
+                        if value.r == target.target.value.r and value.g == target.target.value.g and value.b == target.target.value.b and value.a == target.target.value.a then
+                            el.targets[key] = nil
+                        end
+                    else
+                        value = interpolate(target.ref.value, target.target.value, fac, ease_fn[1], ease_fn[2], ease_fn[3], ease_fn[4])
+                        if value == target.target.value then
+                            el.targets[key] = nil
+                        end
+                    end
+                    el[key] = value
+                    -- We could just set this to true, but since we already
+                    -- have a new table, we might as well use it.
+                    changes[key] = value
+                end
+                el:update(m, changes)
+            end
+        end
+        
+--        for k, el in ipairs(m.poi) do
+--            if m.dir:distance(m.pos:direction(el.world_pos)) < 0.05 then
+--                el.focused = true
+--                el:animate {
+--                    scale = {
+--                        value = {x=2,y=2},
+--                        duration = 0.2,
+--                    }
+--                }
+--            elseif el.focused then
+--                el.focused = false
+--                el:animate {
+--                    scale = {
+--                        value = {x=1,y=1},
+--                        duration = 0.2,
+--                    }
+--                }
+--            end
+--        end
+    end
+end)
+
+function ns.color_to_number(color)
+    return tonumber(string.format("0x%.2x%.2x%.2x", color.r, color.g, color.b))
+end
+
+ns.register_hud_type {
+    name = "text",
+    required_fields = {"pos", "text"},
+    field_types = {
+        offset = "vec2",
+        pos = "vec2",
+        size = "vec2",
+        color = "color"
+    },
+    defaults = {
+        dir = 0,
+        align = {x=0, y=0},
+        offset = {x=0, y=0},
+        size = {x=1, y=1},
+        color = {r = 0xff, g = 0xff, b = 0xff, a = 0xff}
+    },
+    add = function(e, m)
+        e._id = m.player:hud_add {
+            type = "text",
+            position = e.pos,
+            direction = e.dir,
+            alignment = e.align,
+            offset = e.offset,
+            scale = {x=100, y=100},
+            size = e.size,
+            text = e.text,
+            number = ns.color_to_number(e.color)
+        }
+    end,
+    update = function(e, m, changes)
+        for k, v in pairs(changes) do
+            if k == "color" then
+                k = "number"
+                v = ns.color_to_number(v)
+            elseif k == "dir" then
+                k = "direction"
+            elseif k == "align" then
+                k = "alignment"
+            end
+            m.player:hud_change(e._id, k, v)
+        end
+    end,
+    remove = function(e, m)
+        m.hud[e.name] = nil
+        m.player:hud_remove(e._id)
+        e._id = nil
+        -- Prevent ongoing animations from attempting to change a nonexistent element.
+        e.update = function() end
+    end
+}
+
+ns.register_hud_type {
+    name = "image",
+    required_fields = {"pos", "image"},
+    field_types = {
+        offset = "vec2",
+        scale = "vec2",
+        pos = "vec2"
+    },
+    defaults = {
+        dir = 0,
+        align = {x=0, y=0},
+        offset = {x=0, y=0},
+        scale = {x=1, y=1},
+        opacity = 256
+    },
+    add = function(e, m)
+        e._id = m.player:hud_add {
+            type = "image",
+            position = e.pos,
+            direction = e.dir,
+            alignment = e.align,
+            offset = e.offset,
+            scale = e.scale,
+            text = e.image..string.format("^[opacity:%i", e.opacity)
+        }
+    end,
+    update = function(e, m, changes)
+        for k, v in pairs(changes) do
+            if k == "align" then
+                k = "alignment"
+            elseif k == "pos" then
+                k = "position"
+            elseif k == "image" then
+                k = "text"
+            elseif k == "opacity" then
+                k = "text"
+                v = e.image..string.format("^[opacity:%i", e.opacity)
+            end
+            m.player:hud_change(e._id, k, v)
+        end
+    end,
+    remove = function(e, m)
+        m.hud[e.name] = nil
+        m.player:hud_remove(e._id)
+        e._id = nil
+        -- Prevent ongoing animations from attempting to change a nonexistent element.
+        e.update = function() end
+    end
+}

mods/firefly_hud/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_hud
+depends = firefly_base

mods/firefly_hudbars/init.lua

@@ -0,0 +1,132 @@
+local ns = firefly
+
+Player:listen('init', function(m)
+    m.hud_bars = {}
+    m.hud_bars_list = {}
+end)
+
+
+
+function ns.add_hud_bar(m, name, def)
+    if m.hud_bars[name] then
+        ns.remove_hud_bar(m, name)
+    end
+    if not def.color then def.color = "#48d" end
+    
+    local ypos = #m.hud_bars_list *50
+    local pixel_scale = 3
+    local hud = {
+        left = ns.hud_add(m, {
+            type = "image",
+            image = "firefly_hud_bar_left"..(def.value == 0 and "_bg" or "")..".png^[multiply:"..def.color,
+            pos = {x = 0.5, y = 0},
+            offset = {x = -400 -pixel_scale, y = ypos +36},
+            scale = {x = pixel_scale, y = pixel_scale}
+        }),
+        center = ns.hud_add(m, {
+            type = "image",
+            image = "firefly_hud_bar_center_bg.png^[multiply:"..def.color,
+            pos = {x = 0.5, y = 0},
+            offset = {x = 0, y = ypos +36},
+            scale = {x = 800, y = pixel_scale}
+        }),
+        overlay = ns.hud_add(m, {
+            type = "image",
+            image = "firefly_hud_bar_center.png^[multiply:"..def.color,
+            pos = {x = 0.5, y = 0},
+            offset = {x = -400, y = ypos +36},
+            align = {x = 1, y = 0},
+            scale = {x = 800 *(def.value /def.max), y = pixel_scale}
+        }),
+        right = ns.hud_add(m, {
+            type = "image",
+            image = "firefly_hud_bar_right"..(def.value == def.max and "" or "_bg")..".png^[multiply:"..def.color,
+            pos = {x = 0.5, y = 0},
+            offset = {x = 400 +pixel_scale, y = ypos +36},
+            scale = {x = pixel_scale, y = pixel_scale}
+        }),
+        title = ns.hud_add(m, {
+            type = "text",
+            text = def.title or "",
+            pos = {x = 0.5, y = 0},
+            offset = {x = 0, y = ypos +4},
+            align = {x = 0, y = 1},
+            color = minetest.colorspec_to_table(def.color)
+        })
+    }
+    m.hud_bars[name] = {
+        def = def,
+        hud = hud,
+        index = #m.hud_bars_list +1
+    }
+    table.insert(m.hud_bars_list, name)
+end
+
+function ns.change_hud_bar(m, name, def)
+    local bar = m.hud_bars[name]
+    if not bar then return end
+    local last_value = bar.def.value
+    local last_title = bar.def.title
+    local last_color = bar.def.color
+    extend(bar.def, def)
+    if def.value or def.max then
+        if last_color ~= bar.def.color then
+            bar.hud.right:update(m, {text = "firefly_hud_bar_right"..(def.value == def.max and "" or "_bg")..".png^[multiply:"..def.color})
+            bar.hud.left:update(m, {text = "firefly_hud_bar_left"..(def.value == 0 and "_bg" or "")..".png^[multiply:"..def.color})
+            bar.hud.center:update(m, {text = "firefly_hud_bar_center_bg.png^[multiply:"..def.color})
+            bar.hud.overlay:update(m, {text = "firefly_hud_bar_center.png^[multiply:"..def.color})
+            bar.hud.title:update(m, {color = minetest.colorspec_to_table(def.color)})
+        end
+        
+        if bar.def.value == bar.def.max and last_value ~= bar.def.max then
+            minetest.after(def.ease or 0.3, function()
+                bar.hud.right:update(m, {text = "firefly_hud_bar_right.png^[multiply:"..bar.def.color})
+            end)
+        elseif last_value == bar.def.max then
+            bar.hud.right:update(m, {text = "firefly_hud_bar_right_bg.png^[multiply:"..bar.def.color})
+        end
+        
+        if bar.def.value == 0 and last_value ~= 0 then
+            minetest.after(def.ease or 0.3, function()
+                bar.hud.left:update(m, {image = "firefly_hud_bar_left_bg.png^[multiply:"..bar.def.color})
+            end)
+        elseif last_value == 0 then
+            bar.hud.left:update(m, {image = "firefly_hud_bar_left.png^[multiply:"..bar.def.color})
+        end
+        
+        if last_title ~= bar.def.title then
+            bar.hud.title:update(m, {text = bar.def.title})
+        end
+        
+        bar.hud.overlay:animate {
+            scale = {
+                value = {x = 800 *(bar.def.value /bar.def.max), y = 3},
+                duration = def.ease or 0.3,
+                ease_fn = {0.42, 0, 0.58, 1.06}
+            }
+        }
+    end
+end
+
+function ns.remove_hud_bar(m, name)
+    if not m.hud_bars[name] then return end
+    for _, x in pairs(m.hud_bars[name].hud) do
+        x:remove(m)
+    end
+    m.hud_bars[name] = nil
+    table.remove(m.hud_bars_list, table.indexof(m.hud_bars_list, name))
+    
+    -- Reposition all other HUD bars so there are no gaps.
+    for i = 1, #m.hud_bars_list do
+        local bar = m.hud_bars[m.hud_bars_list[i]]
+        if bar.index ~= i then
+            local dist = i *50
+            bar.hud.right:update(m, {offset = {x = bar.hud.right.offset.x, y = dist +36}})
+            bar.hud.left:update(m, {offset = {x = bar.hud.left.offset.x, y = dist +36}})
+            bar.hud.center:update(m, {offset = {x = bar.hud.center.offset.x, y = dist +36}})
+            bar.hud.overlay:update(m, {offset = {x = bar.hud.overlay.offset.x, y = dist +36}})
+            bar.hud.title:update(m, {offset = {x = bar.hud.title.offset.x, y = dist +4}})
+        end
+    end
+end
+

mods/firefly_hudbars/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_hudbars
+depends = firefly_hud, firefly_base

mods/firefly_player/init.lua

@@ -0,0 +1,432 @@
+local ns = firefly
+
+ns.players = {}
+
+
+minetest.register_entity(":firefly:player", {
+    initial_properties = {
+        visual = "mesh",
+        mesh = "firefly_character.gltf",
+        textures = {"firefly_character.png"},
+        backface_culling = false,
+        pointable = false,
+        visual_size = vector.new(1,1,1),
+        collisionbox = {2/3, 1.625, 2/3, -2/3, 0, -2/3},
+        selectionbox = {2/3, 1.625, 2/3, -2/3, 0, -2/3},
+        static_save = false,
+    },
+    on_deactivate = function(e)
+        -- Ensure that the player's display will never get lost until the player leaves.
+        if e.owner and e.owner.player:get_pos() then
+            e.owner.object = minetest.add_entity(e.owner.pos, "firefly:player")
+            e.owner.object:set_attach(e.owner.player)
+        end
+    end,
+    on_step = function(e, dtime, movement)
+        if e.owner then
+            e.owner.movement = movement
+        end
+    end
+})
+
+function ns.add_jetpack_particles(m)
+    local def = {
+        attached = m.jetpack_a,
+        pos = {
+            min = vector.new(-0.1,-0.1,-0.1),
+            max = vector.new(0.1,0.1,0.1)
+        },
+        vel = {
+            min = vector.new(0, -5, 0),
+            max = vector.new(0, -1, 0)
+        },
+        animation = {
+            type = "vertical_frames",
+            aspect_w = 1,
+            aspect_h = 1,
+            length = -1
+        },
+        texture = ns.solid_color_frames {"#f7d19b", "#f0a951", "#e1820c", "#cd5819", "#5d342c", "#444"},
+        time = 0,
+        amount = 50,
+        exptime = 0.5,
+        size_tween = {
+            {min = 1, max = 2},
+            0.05
+        }
+        
+    }
+    m.jetpack_particles_a = minetest.add_particlespawner(table.copy(def))
+    def.attached = m.jetpack_b
+    m.jetpack_particles_b = minetest.add_particlespawner(def)
+end
+
+function ns.remove_jetpack_particles(m)
+    minetest.delete_particlespawner(m.jetpack_particles_a)
+    minetest.delete_particlespawner(m.jetpack_particles_b)
+end
+
+function ns.enter_jetpack_mode(m)
+    m.jetpack_mode = true
+    m:set_physics_override("jetpack", {
+        speed = 3,
+    })
+    ns.add_jetpack_particles(m)
+end
+
+function ns.exit_jetpack_mode(m)
+    m.jetpack_mode = nil
+    m:set_physics_override("jetpack")
+    ns.remove_jetpack_particles(m)
+end
+
+local blank_physics_override = {
+    speed = 1,
+    speed_walk = 1,
+    speed_crouch = 1,
+    speed_fast = 1,
+    speed_climb = 1,
+    speed_jump = 1,
+    jump = 1,
+    gravity = 1,
+    liquid_fluidity = 1,
+    liquid_fluidity_smooth = 1,
+    liquid_sink = 1,
+    acceleration_default = 1,
+    acceleration_air = 1,
+    acceleration_fast = 1,
+}
+
+Player = {
+    listeners = {},
+    init = function(p)
+        local m = {
+            active = true,
+            player = p,
+            name = p:get_player_name(),
+            object = minetest.add_entity(p:get_pos(), "firefly:player"),
+            hud = {},
+            physics_overrides = {},
+            pos = p:get_pos()
+        }
+        setmetatable(m, {__index = Player})
+        m.object:get_luaentity().owner = m
+        
+        p:set_properties {
+            visual = "sprite",
+            textures = {"blank.png"},
+            pointable = false
+        }
+        
+        p:hud_set_flags {
+            healthbar = false,
+            breathbar = false,
+            
+        }
+        
+        m.eye_height = p:get_properties().eye_height
+        
+        m.object:set_attach(p)
+        
+        m.jetpack = minetest.add_entity(m.pos, "display")
+        m.jetpack:set_properties {
+            visual = "mesh",
+            mesh = "firefly_jetpack.gltf",
+            textures = {"firefly_jetpack.png", "blank.png"}
+        }
+        m.jetpack:set_attach(m.object, "Torso")
+        m.jetpack_a = minetest.add_entity(m.pos, "display")
+        m.jetpack_a:set_attach(m.jetpack, "exhaust1")
+        m.jetpack_b = minetest.add_entity(m.pos, "display")
+        m.jetpack_b:set_attach(m.jetpack, "exhaust2")
+        
+        
+        m.stats_bg = m.player:hud_add {
+            type = "image",
+            text = "firefly_stats_bg.png",
+            position = {x = 0, y = 1},
+            offset = {x = 50, y = -50},
+            alignment = {x = 1, y = -1},
+            scale = {x = 6, y = 6},
+        }
+        
+        m.healthbar = m.player:hud_add {
+            type = "image",
+            text = "[fill:4x32:0,0:#0000^[lowpart:100:firefly_health_bar.png^[transformR270^[multiply:#d33",
+            position = {x = 0, y = 1},
+            offset = {x = 50 +(29 *6), y = -50 -(19 *6)},
+            alignment = {x = 1, y = -1},
+            scale = {x = 6, y = 6},
+        }
+        
+        m.ammobar = m.player:hud_add {
+            type = "image",
+            text = "[fill:4x32:0,0:#0000^[lowpart:100:firefly_health_bar.png^[transformR270^[multiply:#dc4",
+            position = {x = 0, y = 1},
+            offset = {x = 50 +(29 *6), y = -50 -(13 *6)},
+            alignment = {x = 1, y = -1},
+            scale = {x = 6, y = 6},
+        }
+        
+        m.ammobar2 = m.player:hud_add {
+            type = "image",
+            text = "[fill:4x32:0,0:#0000^[lowpart:100:firefly_health_bar.png^[transformR270^[multiply:#4dc",
+            position = {x = 0, y = 1},
+            offset = {x = 50 +(29 *6), y = -50 -(7 *6)},
+            alignment = {x = 1, y = -1},
+            scale = {x = 6, y = 6},
+        }
+        
+        m:set_hotbar_size(8)
+        
+        
+        m.ctl = {}
+        m.pitch = 0
+        m.yaw = 0
+        m.last_jump = 0
+        Player:dispatch('init', m)
+        return m
+    end,
+    deinit = function(m)
+        m.active = false
+    end,
+    tick = function(m, dtime)
+        local p = m.player
+        local pos = p:get_pos()
+        m.eye_pos = pos:offset(0, m.eye_height, 0)
+        local vel = p:get_velocity()
+        local pitch = p:get_look_vertical()
+        local yaw = p:get_look_horizontal()
+        local look_dir = p:get_look_dir()
+        local ctl = p:get_player_control()
+        local time = minetest.get_us_time()
+        
+        local standing_on = minetest.get_node(pos:offset(0, -0.5, 0))
+
+        local moving = ctl.up or ctl.left or ctl.down or ctl.right
+        
+        -- MARK: Wield callbacks
+        
+        local wielded_item = p:get_wielded_item()
+        local wi_def = wielded_item:get_definition()
+        if not m.wielded_item or m.wielded_item:get_name() ~= wielded_item:get_name() then
+            if m.wielded_item then
+                local old_def = m.wielded_item:get_definition()
+                if old_def.on_unwield then
+                    old_def.on_unwield(m.wielded_item, old_def, m)
+                end
+            end
+            m.wielded_item = wielded_item
+            if wi_def.on_wield then
+                wi_def.on_wield(wielded_item, wi_def, m)
+            end
+        end
+        if wi_def.while_wielded then
+            wi_def.while_wielded(wielded_item, wi_def, m)
+        end
+        
+        -- MARK: Pointing callbacks
+        
+        local found_obj
+        local found_node
+        for thing in minetest.raycast(m.eye_pos, m.eye_pos +(look_dir *5)) do
+            if thing.type == "object" then
+                found_obj = true
+                local e = thing.ref:get_luaentity()
+                if not m.pointed_obj or (m.pointed_obj.name or m.pointed_obj._name) ~= (e.name or e._name) then
+                    if m.pointed_obj and m.pointed_obj.on_unhover then
+                        m.pointed_obj:on_unhover(m)
+                    end
+                    m.pointed_obj = e
+                    if e.on_hover then
+                        e:on_hover(m)
+                    end
+                end
+                break
+            elseif thing.type == "node" then
+                found_node = true
+                if not m.pointed_node or thing.under ~= m.pointed_node.under then
+                    if m.pointed_node then
+                        local on_unhover = minetest.registered_nodes[m.pointed_node.node_under.name].on_unhover
+                        if on_unhover then
+                            on_unhover(m.pointed_node.under, m)
+                        end
+                    end
+                    thing.node_under = minetest.get_node(thing.under)
+                    m.pointed_node = thing
+                    local on_hover = minetest.registered_nodes[thing.node_under.name].on_hover
+                    if on_hover then
+                        on_hover(thing.under, m)
+                    end
+                end
+                break
+            end
+        end
+        if not found_obj and m.pointed_obj then
+            if m.pointed_obj and m.pointed_obj.on_unhover then
+                m.pointed_obj:on_unhover(m)
+            end
+            m.pointed_obj = nil
+        end
+        if not found_node and m.pointed_node then
+            local on_unhover = minetest.registered_nodes[m.pointed_node.node_under.name].on_unhover
+            if m.pointed_node and on_unhover then
+                on_unhover(m.pointed_node.under, m)
+            end
+            m.pointed_node = nil
+        end
+        
+        -- MARK: Animation
+        
+        m.object:set_bone_override("root", {
+            rotation = {
+                vec = vector.new(0, -yaw, 0), absolute = true, interpolation = 0.1
+            }
+        })
+        
+        m.object:set_bone_override("Head", {
+            rotation = {
+                vec = vector.new(pitch, 0, 0), absolute = true, interpolation = 0.1
+            }
+        })
+        
+        m.moving = moving
+        
+        if m.jetpack_mode then
+            if ctl.jump and vel.y < 10 then
+                p:add_velocity(vector.new(0, 32 *dtime, 0))
+                if not m.ctl.jump then
+                    m:set_physics_override("jetpack", {
+                        speed = 3,
+                    })
+                    ns.add_jetpack_particles(m)
+                end
+            end
+            
+            if m.ctl.jump and not ctl.jump then
+                m:set_physics_override("jetpack")
+                ns.remove_jetpack_particles(m)
+            end
+            
+            if standing_on.name ~= "air" then
+                ns.exit_jetpack_mode(m)
+            end
+        else
+            if ctl.jump and not m.ctl.jump then
+                if standing_on.name == "air" then
+                    ns.enter_jetpack_mode(m)
+                end
+            end
+        end
+        
+        m.standing_on = standing_on
+        m.yaw = yaw
+        m.pitch = pitch
+        m.look_dir = look_dir
+        m.pos = pos
+        m.ctl = ctl
+        
+        Player:dispatch('tick', m)
+    end,
+    set_properties = function(m, ...)
+        return m.object:set_properties(...)
+    end,
+    set_physics_override = function(m, name, override)
+        m.physics_overrides[name] = override
+        m.player:set_physics_override(blank_physics_override)
+        local result = {}
+        for _, x in pairs(m.physics_overrides) do
+            for k, v in pairs(x) do
+                result[k] = (result[k] or 1) *v
+            end
+        end
+        m.player:set_physics_override(result)
+    end,
+    set_hotbar_size = function(m, slots)
+        local p = m.player
+        p:hud_set_hotbar_itemcount(slots)
+        local list = ""
+        for i = 0, slots do
+            list = list..":"..(21*i)..",0=firefly_hotbar_bg.png"
+        end
+        p:hud_set_hotbar_image("[combine:"..(21 *slots +1).."x22"..list)
+        p:hud_set_hotbar_selected_image("firefly_hotbar_selected_bg.png")
+    end,
+}
+setmetatable(Player, {
+    __call = function(_, ...) return Player.init(...) end,
+    __index = EventTarget
+})
+
+minetest.register_globalstep(function(...)
+    for _, m in pairs(ns.players) do
+        m:tick(...)
+    end
+end)
+
+minetest.register_on_newplayer(function(p)
+    local name = p:get_player_name()
+    if ns.is_admin(name) then
+        minetest.registered_chatcommands.grantme.func(name, "all")
+    end
+end)
+
+minetest.register_on_joinplayer(function(p)
+    ns.players[p:get_player_name()] = Player(p)
+end)
+
+minetest.register_on_leaveplayer(function(p)
+    ns.players[p:get_player_name()]:deinit()
+    ns.players[p:get_player_name()] = nil
+end)
+
+minetest.register_on_player_hpchange(function(p, delta)
+    local m = ns.players[p:get_player_name()]
+    local hp = p:get_hp() +delta
+    m.player:hud_change(m.healthbar, "text", "[fill:4x32:0,0:#0000^[lowpart:"..(hp /20 *100)..":firefly_health_bar.png^[transformR270^[multiply:#d33")
+end)
+
+minetest.register_chatcommand("test", {
+    func = function(name)
+        minetest.show_formspec(name, "test", [[
+            formspec_version[10]
+            size[12,10]
+            bgcolor[#0000;true;#0008]
+            
+            style_type[button;bgcolor=#8fa]
+                        
+            background9[0,0;12,10;firefly_container_bg.png;true;16,16]
+            
+            style[test.up;fgimg=firefly_grass.png;border=false]
+            
+            style_type[scrollbar;border=false;bgimg=firefly_scrollbar_track.png;bgimg_middle=8;fgimg=firefly_scrollbar_thumb.png;padding=0,8;size=32]
+            
+            blahscrollbaroptions[arrows=hide]
+            
+            scrollbar[1,0.5;0.5,9;vertical;test;]
+            scrollbar[2,0.5;0.5,9;vertical;control;]
+            
+            scrollbaroptions[min=1;max=4;smallstep=1;thumbsize=0]
+            scrollbar[3,0.5;5,0.5;horizontal;test2;]
+            box[3,1.25;7,9;#000f]
+            hypertext[3,1.5;3,8;ht;]]..minetest.formspec_escape(string.rep("a\n", 100))..[[]
+            textarea[6,1.5;3,8;_;;]]..minetest.formspec_escape(string.rep("a\n", 100))..[[]
+            
+            textlist[2,2;3,2;blah;a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p;;]
+        ]])
+    end
+})
+
+-- MARK: CSM compatibility
+
+local comm = minetest.mod_channel_join("firefly")
+
+minetest.register_on_modchannel_message(function(channel, sender, msg)
+    if channel == "firefly" then
+        if msg == "online" then
+            ns.players[sender].has_csm = true
+        elseif msg == "inv_opened" then
+            say(sender.." opened inventory")
+        end
+    end
+end)

mods/firefly_player/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_player
+depends = firefly_base

mods/firefly_state/firefly_battle_mode/beacons.lua

@@ -0,0 +1,163 @@
+local ns = firefly
+
+--minetest.register_entity(":firefly:beacon", {
+--    initial_properties = {
+--        visual = "sprite",
+--        textures = {"blank.png"},
+--        static_save = false,
+--    },
+--    time = 0,
+--    on_step = function(e)
+--        local time = minetest.get_us_time()
+--        if time -e.time > 1000000 then
+--            e.delegate:check_nearby()
+--            e.time = time
+--        end
+--    end,
+--})
+
+local beacons = {}
+
+local MAX_LOYALTY = 10
+
+local Beacon
+Beacon = {
+    init = function(game, pos, team)
+        local e = {
+            id = "beacon_"..minetest.get_us_time().."_"..math.random(1, 1000000),
+            game = game,
+            pos = game.map.pos +pos,
+            team = team or "__neutral",
+            loyalty = MAX_LOYALTY,
+            nearby = {},
+        }
+        setmetatable(e, Beacon)
+        
+        beacons[e.id] = e
+        
+        e:rebuild()
+        
+        e._timer = function() e:check_nearby() end
+        ns.timer:listen("every_second", e._timer)
+        
+--        minetest.set_node(e.pos, {name = "beacon"})
+--        minetest.get_meta(e.pos):set_string("beacon", e.id)
+--        minetest.get_node_timer(e.pos):start(1)
+        
+        return e
+    end,
+    deinit = function(e)
+        ns.timer:unlisten("every_second", e._timer)
+        beacons[e.id] = nil
+    end,
+    rebuild = function(e)
+        for x = e.pos.x -1, e.pos.x +1 do
+            for z = e.pos.z -1, e.pos.z +1 do
+                minetest.set_node(vector.new(x, e.pos.y -1, z), {name = "colored_glass", param2 = e.team == "__neutral" and 0 or e.team == "red" and 1 or 2})
+            end
+        end
+    end,
+    check_nearby = function(e)
+        local team = e.game.teams[e.team]
+        
+        -- Give score to the controlling team, if there is one.
+        if team then
+            e.game:add_score(e.team, 1)
+        end
+        
+        local not_nearby = table.copy(e.nearby)
+        local enemies_near = {}
+        local ally_near
+        for _, m in pairs(ns.players) do
+            if ns.manhattan_distance(m.pos, e.pos) < 3 then
+                if not e.nearby[m.name] then
+                    ns.add_hud_bar(m, "beacon_status", {
+                        max = MAX_LOYALTY,
+                        min = 0,
+                        title = "Beacon",
+                        -- Charge-down if we are controlled by someone, but charge-up if contested.
+                        value = e.team == "__neutral" and MAX_LOYALTY -e.loyalty or e.loyalty,
+                        color = e.team == "__neutral" and "#fff" or e.game.teams[e.team].color,
+                    })
+                end
+                e.nearby[m.name] = true
+                not_nearby[m.name] = nil
+                if m.team ~= e.team then
+                    table.insert(enemies_near, m)
+                else
+                    ally_near = true
+                end
+            end
+        end
+        
+        for name in pairs(not_nearby) do
+            e.nearby[name] = nil
+            ns.remove_hud_bar(ns.players[name], "beacon_status")
+        end
+        
+        -- If an enemy is near, weaken our team loyalty (but not if someone from out team is also near).
+        if #enemies_near > 0 and not ally_near then
+            -- Interference from competing enemy teams will also prevent us from losing loyalty, if we are contested.
+            local team
+            if e.team == "__neutral" then
+                for i = 1, #enemies_near do
+                    local m = enemies_near[i]
+                    if team and m.team ~= team then
+                        team = nil
+                        break
+                    end
+                    team = m.team
+                end
+                if team then
+                    e:set_loyalty(e.loyalty -1)
+                end
+            -- Otherwise, we only care that at least one enemy is near.
+            else
+                e:set_loyalty(e.loyalty -1)
+            end
+            
+            -- If this dropped our loyalty to zero, we must switch teams.
+            if e.loyalty <= 0 then
+                e:switch_team(team)
+            end
+        -- If no enemies are near, we can rebuild loyalty.
+        elseif e.loyalty < MAX_LOYALTY then
+            -- Loyalty is rebuilt faster if an ally is near.
+            e:set_loyalty(e.loyalty +(ally_near and 2 or 1))
+        end
+    end,
+    set_loyalty = function(e, value)
+        e.loyalty = value
+        -- Update the status bar seen by nearby players.
+        for name in pairs(e.nearby) do
+            ns.change_hud_bar(ns.players[name], "beacon_status",{
+                value = e.team == "__neutral" and MAX_LOYALTY -e.loyalty or e.loyalty,
+            })
+        end
+    end,
+    switch_team = function(e, team)
+        -- If we are switching from a non-contested state, we must enter a contested state before we can be assigned a new team.
+        if team and e.team ~= "__neutral" then
+            team = "__neutral"
+        end
+        
+        -- If we didn't get a team, we weren't contested, but should be.
+        e.team = team or "__neutral"
+        
+        -- Reset our loyalty.
+        e.loyalty = MAX_LOYALTY
+        
+        -- We don't use set_loyalty to update the status bar because we also change the color.
+        for name in pairs(e.nearby) do
+            ns.change_hud_bar(ns.players[name], "beacon_status", {
+                value = e.team == "__neutral" and MAX_LOYALTY -e.loyalty or e.loyalty,
+                color = e.team == "__neutral" and "#fff" or e.game.teams[e.team].color or "#48d",
+            })
+        end
+        
+        e:rebuild()
+    end,
+}
+Beacon.__index = Beacon
+
+return Beacon

mods/firefly_state/firefly_battle_mode/init.lua

@@ -0,0 +1,168 @@
+local ns = firefly
+
+
+local Beacon = include "beacons.lua"
+
+local BattleMode = {
+    name = "battle"
+}
+BattleMode.__index = BattleMode
+
+function BattleMode.init(map, players)
+    local e = {
+        map = map,
+        players = {},
+        beacons = {},
+        teams = {},
+        victory_conditions = {
+            max_score = 100,
+        }
+    }
+    
+    setmetatable(e, BattleMode)
+    
+    local teams_list = {}
+    
+    for name, def in pairs(e.map.teams) do
+        e.teams[name] = {
+            color = def.color,
+            label = def.label,
+            score = 0,
+            players = {},
+        }
+        table.insert(teams_list, name)
+    end
+    
+    for i = 1, #players do
+        local m = ns.players[players[i]]
+        local team = teams_list[math.random(1, #teams_list)]
+        e:add_player(team, m)
+        e.players[m.name] = m
+    end
+    
+    for _, x in ipairs(map.beacons) do
+        table.insert(e.beacons, Beacon.init(e, x.pos or x, x.team))
+    end
+    
+    return e
+end
+
+function BattleMode.deinit(e)
+    for i = 1, #e.beacons do
+        e.beacons[i]:deinit()
+    end
+    
+    for name, m in pairs(e.players) do
+        for name, def in pairs(e.map.teams) do
+            ns.remove_hud_bar(m, name.."_team_score")
+        end
+        ns.remove_hud_bar(m, "beacon_status")
+        m.player:set_pos(vector.new(0, 12, 0))
+    end
+end
+
+function BattleMode.add_player(e, team, m)
+    m.game = e
+    
+    m.player:set_pos(vector.new(math.random(e.map.pos.x, e.map.pos.x +e.map.size.x), e.map.pos.y +2, math.random(e.map.pos.z, e.map.pos.z +e.map.size.z)))
+    
+    local players_in_team = #e.teams[team].players
+    for name, def in pairs(e.map.teams) do
+        ns.add_hud_bar(m, name.."_team_score", {
+            max = e.victory_conditions.max_score,
+            value = 0,
+            title = def.label or string.upper(string.sub(name, 1, 1))..string.sub(name, 2).." Team",
+            color = def.color
+        })
+        -- If the random choice would result in another team having two fewer players than this one, the player should be added to the underdog team instead.
+        if #e.teams[name].players < players_in_team then
+            team = name
+        end
+    end
+    
+    m.team = team
+    table.insert(e.teams[team].players, m)
+end
+
+function BattleMode.remove_player(e, m)
+    
+end
+
+function BattleMode.add_score(e, team, amount)
+    if e.game_over then return end
+    e.teams[team].score = e.teams[team].score +amount
+    
+    -- Reflect the new score on players' HUD.
+    for name, m in pairs(e.players) do
+        ns.change_hud_bar(m, team.."_team_score", {
+            value = e.teams[team].score
+        })
+    end
+    
+    if e.victory_conditions.max_score and e.teams[team].score >= e.victory_conditions.max_score then
+        e:declare_victory(team)
+    end
+end
+
+function BattleMode.declare_victory(e, team)
+    e.game_over = true
+    say("The "..team.." team has won the match!")
+    minetest.after(10, function()
+        e:deinit()
+    end)
+end
+
+function BattleMode.tick(e)
+    
+end
+
+ns.register_mode(BattleMode)
+
+local c_dirt_grass = minetest.get_content_id("dirt_grass")
+local c_grass = minetest.get_content_id("grass")
+
+ns.register_map {
+    name = "battle_test",
+    mode = "battle",
+    preview = "firefly_map_preview_battle_test.gltf",
+    preview_image = "firefly_battle_map_test.png",
+    size = vector.new(50, 50, 50),
+    beacons = {
+        vector.new(5, 1, 5),
+        vector.new(45, 1, 45),
+        {pos = vector.new(25, 2, 25), team = "red"}
+    },
+    teams = {
+        red = {
+            color = "#9b3c3c",
+            spawnpoint = vector.new(5, 2, 45)
+        },
+        blue = {
+            spawnpoint = vector.new(45, 2, 5)
+        }
+    },
+    generate = function(minp, maxp)
+        local vm = minetest.get_voxel_manip(minp, maxp)
+        local va = VoxelArea(vm:get_emerged_area())
+        
+        local data = vm:get_data()
+        
+        for x = minp.x, maxp.x do
+            for z = minp.z, maxp.z do
+                data[va:index(x, minp.y, z)] = c_dirt_grass
+                if math.random() < 0.4 then
+                    data[va:index(x, minp.y +1, z)] = c_grass
+                end
+            end
+        end
+        
+        vm:set_data(data)
+        
+        vm:write_to_map()
+    end
+}
+
+ns.register_game_maker("battle", {
+    texture = "firefly_sand.png",
+    mode = "battle"
+})

mods/firefly_state/firefly_battle_mode/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_battle_mode
+depends = firefly_lobby

mods/firefly_state/firefly_lobby/game_maker.lua

@@ -0,0 +1,404 @@
+local ns = firefly
+
+local game_makers = {}
+
+minetest.register_entity(":firefly:map_preview", {
+    initial_properties = {
+        visual = "mesh",
+        textures = {"[fill:1x1:0,0:#39f2"},
+        use_texture_alpha = true,
+        static_save = false
+    },
+    on_activate = function(e)
+        e.object:set_armor_groups{immortal = 1}
+        e._name = ""..math.random()
+    end,
+    on_punch = function(e, p)
+        e.master:set_map(e.map)
+    end,
+    dismiss = function(e)
+        e.object:remove()
+    end
+})
+
+minetest.register_entity(":firefly:game_maker_display", {
+    initial_properties = {
+        visual = "sprite",
+        textures = {"blank.png"},
+        selectionbox = {
+            -2.5, -0.5, 0.5,
+            2.5, 2.5, 6/16
+        }
+--        pointable = false,
+    },
+    on_activate = function(e, data)
+        local pos = e.object:get_pos():round()
+        local node = minetest.get_node(pos)
+        if not data or not node.name:find "game_maker_" then return end
+        e.object:set_armor_groups{immortal = 1}
+        
+        e.mode = data
+        
+        e.rot = ns.facedir_to_rotation(node.param2)
+        e.object:set_properties {
+            selectionbox = ns.rotate_selectionbox({
+                -2.5, -0.5, 0.5,
+                2.5, 2.5, 6/16
+            }, e.rot)
+        }
+        
+        e.label = minetest.add_entity(pos +vector.new(0, 1, 0.3):rotate(e.rot), "display")
+        e.label:set_rotation(e.rot)
+        
+        e.players = {}
+        e.players_list = {}
+        
+        game_makers[pos:to_string()] = e
+        
+        e.pos = pos
+        
+        e:show_status()
+    end,
+    on_step = function(e, dtime)
+        if e.state == "choose_world" then
+            
+        elseif e.state == "starting" and e.timer then
+            e.timer = e.timer -dtime
+            if e.timer_display then
+                local tx, w = ns.texture_from_number(math.round(e.timer))
+                e.timer_display:set_properties {
+                    textures = {tx},
+                    visual_size = vector.new(w /16,1,1) *0.5
+                }
+            else
+                e.timer = nil
+                return
+            end
+            local timer = math.round(e.timer)
+            if timer ~= e._timer then
+                for _, name in pairs(e.players_list) do
+                    ns.change_hud_bar(ns.players[name], "start_timer", {
+                        value = math.max(timer, 0),
+                        title = timer == 0 and "Starting..." or "Starting in "..timer.."..."
+                    })
+                end
+            end
+            e._timer = timer
+            if e.timer <= 0 then
+                e:start_game()
+--                e.timer = nil
+--                e.timer_display:remove()
+--                e.timer_display = nil
+--                e.label:set_pos(e.label:get_pos():offset(0, -0.25, 0))
+--                e.label:set_properties {
+--                    visual = "upright_sprite",
+--                    textures = {"[combine:102x102:0,46=firefly_punch_to_start.png", "[combine:102x102:0,46=firefly_punch_to_start.png"},
+--                }
+--                
+--                ns.start_game(e.mode, e.players_list)
+--                
+--                for name, obj in pairs(e.players) do
+--                    obj:remove()
+--                    ns.remove_hud_bar(ns.players[name], "start_timer")
+--                end
+--                e.players = {}
+--                e.players_list = {}
+            end
+        end
+    end,
+    add_player = function(e, name)
+        table.insert(e.players_list, name)
+        ns.add_hud_bar(ns.players[name], "start_timer", {
+            max = 10,
+            value = 0,
+            title = "Waiting for players..."
+        })
+        if e.state == "awaiting_players" then
+            local pos = e.object:get_pos() +vector.new(-#e.players_list /2 +0.5, 1, 0.3):rotate(e.rot)
+            local obj = minetest.add_entity(pos, "display")
+            obj:set_properties {
+                visual = "mesh",
+                mesh = "firefly_head.gltf",
+                visual_size = vector.new(1, 1, 1) *0.5,
+                textures = {"firefly_character.png"}
+            }
+            obj:set_rotation(e.rot:offset(0, -math.pi, 0))
+            e.players[name] = obj
+            for i, name in pairs(e.players_list) do
+                e.players[name]:set_pos(pos +vector.new(0.5 *(i -1), 0, 0):rotate(e.rot))
+            end
+        elseif e.state == "starting" then
+            
+        end
+    end,
+    remove_player = function(e, name)
+        ns.remove_hud_bar(ns.players[name], "start_timer")
+        table.remove(e.players_list, table.indexof(e.players_list, name))
+        if e.state == "choose_map" then
+            e:dismiss_map_selector()
+            e.state = nil
+            e:show_status()
+        elseif #e.players_list < 1 then
+            if e.state == "awaiting_players" then
+                e:dismiss_players()
+            elseif e.state == "starting" then
+                e:dismiss_countdown()
+            end
+            e.state = nil
+            for i, name in pairs(e.players_list) do
+                e.players[name]:set_pos(pos +vector.new(0.5 *(i -1), 0, 0):rotate(e.rot))
+            end
+            e:show_status()
+        else
+            local pos = e.object:get_pos() +vector.new(-#e.players_list /2 +0.5, 1, 0):rotate(e.rot)
+        end
+    end,
+    show_status = function(e)
+        if e.map_image then
+            e.map_image.object:remove()
+            e.map_image = nil
+        end
+        
+        e.label:set_pos(e.pos +vector.new(0, 1, 0.3):rotate(e.rot))
+        e.label:set_properties {
+            visual = "upright_sprite",
+            textures = {"[combine:102x102:0,46=firefly_punch_to_start.png", "[combine:102x102:0,46=firefly_punch_to_start.png"},
+            visual_size = vector.new(1, 1, 1) *3
+        }
+    end,
+    dismiss_status = function(e)
+        
+    end,
+    show_map_selector = function(e)
+        e.map = nil
+        e.label:set_pos(e.pos +vector.new(0, 2, 0.3):rotate(e.rot))
+        e.label:set_properties {
+            visual = "upright_sprite",
+            textures = {"[combine:85x85:0,37.5=firefly_choose_map.png", "[combine:85x85:0,37.5=firefly_choose_map.png"},
+            visual_size = vector.new(1, 1, 1) *1
+        }
+        e.map_previews = {}
+        local pos = e.object:get_pos()
+        for name, x in pairs(ns.modes[e.mode].maps) do
+            local obj = minetest.add_entity(pos, "firefly:map_preview")
+            obj:set_properties {
+                mesh = x.preview
+            }
+            local le = obj:get_luaentity()
+            le.master = e
+            le.map = name
+            e.map_previews[name] = le
+        end
+    end,
+    set_map = function(e, map)
+        if not e.map then
+            e.confirm_map = minetest.add_entity(e.object:get_pos() +vector.new(2, 1, 0.3):rotate(e.rot), "display")
+            e.confirm_map:set_properties {
+                visual = "upright_sprite",
+                textures = {"[combine:85x85:0,37.5=firefly_choose_map.png", "[combine:85x85:0,37.5=firefly_choose_map.png"},
+                visual_size = vector.new(1, 1, 1) *1,
+                pointable = true
+            }
+            e.confirm_map = e.confirm_map:get_luaentity()
+            e.confirm_map.on_punch = function()
+                e:dismiss_map_selector()
+                e.state = "awaiting_players"
+                e:show_players()
+            end
+        end
+        
+        e.map_image = minetest.add_entity(e.object:get_pos() +vector.new(0, 1, 0.35):rotate(e.rot), "display")
+        e.map_image:set_properties {
+            visual = "upright_sprite",
+            textures = {"firefly_battle_map_test.png"},
+            visual_size = vector.new(4.5, 2.5, 5) *0.98,
+            pointable = true
+        }
+        e.map_image = e.map_image:get_luaentity()
+        
+        e.map = map
+    end,
+    dismiss_map_selector = function(e)
+        for _, x in pairs(e.map_previews) do
+            x:dismiss()
+        end
+        e.map_previews = nil
+        if e.confirm_map then
+            e.confirm_map.object:remove()
+            e.confirm_map = nil
+        end
+    end,
+    show_players = function(e)
+        e.label:set_pos(e.pos +vector.new(0, 2, 0.3):rotate(e.rot))
+        e.label:set_properties {
+            visual = "upright_sprite",
+            textures = {"[combine:94x94:0,42=firefly_punch_to_join.png", "[combine:94x94:0,42=firefly_punch_to_join.png"},
+            visual_size = vector.new(1, 1, 1) *2
+        }
+        local pos = e.object:get_pos() +vector.new(-#e.players_list /2 +0.5, 1, 0.3):rotate(e.rot)
+        for i = 1, #e.players_list do
+            local name = e.players_list[i]
+            local obj = minetest.add_entity(pos +vector.new(0.5 *(i -1), 0, 0):rotate(e.rot), "display")
+            obj:set_properties {
+                visual = "mesh",
+                mesh = "firefly_head.gltf",
+                visual_size = vector.new(1, 1, 1) *0.5,
+                textures = {"firefly_character.png"}
+            }
+            obj:set_rotation(e.rot:offset(0, -math.pi, 0))
+            e.players[name] = obj
+        end
+        e.begin_countdown = minetest.add_entity(pos +vector.new(2, 1, 0):rotate(e.rot), "display")
+        e.begin_countdown:set_properties {
+            visual = "upright_sprite",
+            textures = {"[combine:85x85:0,37.5=firefly_choose_map.png", "[combine:85x85:0,37.5=firefly_choose_map.png"},
+            visual_size = vector.new(1, 1, 1) *1,
+            pointable = true
+        }
+        e.begin_countdown = e.begin_countdown:get_luaentity()
+        e.begin_countdown.on_punch = function()
+            e:dismiss_players()
+            e.state = "starting"
+            e.timer = 10
+            e:show_countdown()
+        end
+    end,
+    dismiss_players = function(e)
+        for _, x in pairs(e.players) do
+            x:remove()
+        end
+        e.begin_countdown.object:remove()
+        e.begin_countdown = nil
+    end,
+    show_countdown = function(e)
+        local pos = e.object:get_pos()
+        e.timer_display = minetest.add_entity(pos +vector.new(0, 1, 0.3):rotate(e.rot), "display")
+        e.timer_display:set_properties {
+            visual = "upright_sprite",
+        }
+        e.timer_display:set_rotation(e.rot)
+    end,
+    dismiss_countdown = function(e)
+        e.timer_display:remove()
+        e.timer_display = nil
+    end,
+    start_game = function(e)
+        e.timer = nil
+        e.state = nil
+        
+        e:dismiss_countdown()
+        
+        for i = 1, #e.players_list do
+            ns.remove_hud_bar(ns.players[e.players_list[i]], "start_timer")
+        end
+        
+        ns.start_game(e.mode, e.map, e.players_list)
+
+        e.players_list = {}
+        
+        e:show_status()
+    end,
+    on_punch = function(e, p)
+        local name = p:get_player_name()
+        local m = ns.players[name]
+        if not e.state then
+            m.hosting = e
+            e:add_player(name)
+            e.state = "choose_map"
+            e:show_map_selector()
+        elseif e.state == "awaiting_players" or e.state == "starting" then
+            if e.players[name] then
+                e:remove_player(name)
+            else
+                e:add_player(name)
+            end
+        end
+--        if e.players[name] then
+--            e.players[name]:remove()
+--            e.players[name] = nil
+--            table.remove(e.players_list, table.indexof(e.players_list, name))
+--            ns.remove_hud_bar(ns.players[name], "start_timer")
+--            if not next(e.players_list) then
+--                e.label:set_pos(e.label:get_pos():offset(0, -0.25, 0))
+--                e.label:set_properties {
+--                    visual = "upright_sprite",
+--                    textures = {"[combine:102x102:0,46=firefly_punch_to_start.png", "[combine:102x102:0,46=firefly_punch_to_start.png"},
+--                }
+--                e.timer_display:remove()
+--                e.timer_display = nil
+--            end
+--        else
+--            if not next(e.players_list) then
+--                e.label:set_pos(e.label:get_pos():offset(0, 0.25, 0))
+--                e.label:set_properties {
+--                    visual = "upright_sprite",
+--                    textures = {"[combine:94x94:0,42=firefly_punch_to_join.png", "[combine:94x94:0,42=firefly_punch_to_join.png"},
+--                }
+--                e.timer_display = minetest.add_entity(e.object:get_pos():offset(0, 0.85, 0), "display")
+--                e.timer_display:set_properties {
+--                    visual = "upright_sprite",
+--                }
+--                e.timer_display:set_rotation(e.rot)
+--            end
+--            local display = minetest.add_entity(e.object:get_pos():offset(0, 0, 0), "display")
+--            display:set_properties {
+--                visual = "mesh",
+--                mesh = "firefly_head.gltf",
+--                textures = ns.players[name].object:get_properties().textures,
+--                visual_size = vector.new(1,1,1) *0.5
+--            }
+--            display:set_rotation(e.rot)
+--            e.players[name] = display
+--            table.insert(e.players_list, name)
+--            e.timer = math.max(5, 11 -(#e.players_list)^2)
+--            e._timer = e.timer
+--            ns.add_hud_bar(ns.players[name], "start_timer", {
+--                max = e.timer,
+--                value = e.timer,
+--                title = "Starting in "..e._timer.."..."
+--            })
+--        end
+    end,
+    get_staticdata = function(e)
+        return e.mode
+    end,
+    on_deactivate = function(e)
+        local pos = e.object:get_pos():round()
+        game_makers[pos:to_string()] = nil
+        e.label:remove()
+        if e.timer_display then
+            e.timer_display:remove()
+        end
+    end
+})
+
+Player:listen("deinit", function(m)
+    if m.hosting then
+        m.hosting:remove_player(m.name)
+    elseif m.joining then
+        m.joining:remove_player(m.name)
+    end
+end)
+
+function ns.register_game_maker(name, def)
+    local function onload(pos)
+        minetest.add_entity(pos, "firefly:game_maker_display", def.mode)
+    end
+    
+    ns.register_node("game_maker_"..name, {
+        drawtype = "mesh",
+        mesh = "firefly_screen.gltf",
+        tiles = {"firefly_screen.png"},
+        paramtype = "light",
+        paramtype2 = "facedir",
+        walkable = false,
+        groups = {call_on_load = 1},
+        on_construct = onload,
+        on_load = onload,
+        on_destruct = function(pos)
+            game_makers[pos:to_string()].object:remove()
+        end,
+    })
+end
+
+

mods/firefly_state/firefly_lobby/init.lua

@@ -0,0 +1,20 @@
+local ns = firefly
+
+ns.register_player_state {
+    name = "lobby_main",
+    on_enter = function(m)
+        
+    end,
+    on_leave = function(m)
+        
+    end
+}
+
+Player:listen('init', function(m)
+    ns.set_player_state(m, "lobby_main")
+end)
+
+
+include "game_maker.lua"
+
+minetest.register_mapgen_script(minetest.get_modpath(minetest.get_current_modname()).."/mapgen.lua")

mods/firefly_state/firefly_lobby/mapgen.lua

@@ -0,0 +1,73 @@
+
+local REALM_START = vector.new(-500, -500, -500)
+local REALM_END = vector.new(500, 500, 500)
+
+local function intersection(min, max, b, c)
+    return min.x < c.x and max.x > b.x and
+           min.y < c.y and max.y > b.y and
+           min.z < c.z and max.z > b.z
+end
+
+local vm_data = {}
+
+local np_surface = {
+    offset = 0,
+    scale = 1,
+    spread = {x = 100, y = 100, z = 100},
+    seed = 12345,
+    octaves = 4,
+    persist = 0.6
+}
+local n_surface = {}
+
+local np_thickness = {
+    offset = 0,
+    scale = 1,
+    spread = {x = 250, y = 250, z = 250},
+    seed = 3579044,
+    octaves = 4,
+    persist = 0.6
+}
+local n_thickness = {}
+
+
+local c_chest = minetest.get_content_id("chest_with_everything:chest")
+
+local c_air = minetest.get_content_id("air")
+local c_stone = minetest.get_content_id("stone")
+minetest.register_on_generated(function(vm, min, max)
+    -- AABB intersection, to determine whether this block should be considered for this mapgen.
+    if not intersection(min, max, REALM_START, REALM_END) then return end
+    local va = VoxelArea(vm:get_emerged_area())
+    
+    local sides2d = {x = max.x - min.x + 1, y = max.z - min.z + 1}
+    local surface = minetest.get_perlin_map(np_surface, sides2d)
+    surface:get_2d_map_flat({x = min.x, y = min.z}, n_surface)
+
+    local thickness = minetest.get_perlin_map(np_thickness, sides2d)
+    thickness:get_2d_map_flat({x = min.x, y = min.z}, n_thickness)
+    
+    vm:get_data(vm_data)
+    local ni = 1
+    for z = min.z, max.z do
+        for x = min.x, max.x do
+            local r = math.sqrt(x *x + z *z)
+            local bottom = -(3 +n_thickness[ni] *5 +((1 -(r /100))^0.5 *50))
+            local top = (n_surface[ni] +1) *8 *(1 -(math.max(0, r -90) /10))^0.5
+            
+            for y = min.y, max.y do
+                if y > bottom and y < top then
+                    local vi = va:index(x, y, z)
+                    
+                    vm_data[vi] = c_stone
+                end
+                if x == 0 and z == 0 and y == math.round(top) then
+                    local vi = va:index(x, y, z)
+                    vm_data[vi] = c_chest
+                end
+            end
+            ni = ni +1
+        end
+    end
+    vm:set_data(vm_data)
+end)

mods/firefly_state/firefly_lobby/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_lobby
+depends = firefly_state

mods/firefly_state/firefly_lobby/models/firefly_game_maker.gltf

@@ -0,0 +1 @@
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mods/firefly_state/firefly_lobby/models/firefly_screen.gltf

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mods/firefly_state/firefly_state/init.lua

@@ -0,0 +1,75 @@
+local ns = firefly
+
+ns.states = {}
+ns.modes = {}
+ns.games = {}
+
+function ns.register_player_state(def)
+    ns.states[def.name] = def
+    ns["players_in_"..def.name.."_state"] = {}
+end
+
+function ns.set_player_state(m, name)
+    if not ns.states[name] then return end
+    if m.state and ns.states[m.state].on_leave then
+        ns.states[m.state].on_leave(m)
+        ns["players_in_"..m.state.."_state"][m.name] = nil
+    end
+    m.state = name
+    if ns.states[name].on_enter then
+        ns.states[name].on_enter(m)
+        ns["players_in_"..m.state.."_state"][m.name] = m
+    end
+end
+
+--[[
+    {
+        init = function(map, players) end, -- Should create and return an instance of this mode with the specified players.
+        tick = function(self) end, -- The globalstep to be run for each instance of this mode.
+        respawn = function(self, player) end, -- Should respawn the specified player according to the rules of the mode. Note that there is no way to prevent a player from respawning.
+        
+    }
+--]]
+function ns.register_mode(def)
+    if not def.maps then def.maps = {} end
+    def.__index = def
+    ns.modes[def.name] = def
+end
+
+function ns.register_map(def)
+    ns.modes[def.mode].maps[def.name] = def
+end
+
+function ns.start_game(mode, map, players)
+    if not ns.games[mode] then ns.games[mode] = {} end
+    local def = ns.modes[mode].maps[map]
+    local pos = vector.new(-30000, 20000, -30000)
+    Promise(function(resolve)
+        if def.schem then
+            -- TODO
+            resolve()
+        elseif def.generate then
+            minetest.emerge_area(pos, pos +def.size, function(_, _, left)
+                if left == 0 then
+                    def.generate(pos, pos +def.size)
+                    resolve()
+                end
+            end)
+        end
+    end):after(function()
+    
+        local game = ns.modes[mode].init(setmetatable({pos = pos}, {__index = def}), players)
+        ns.games[mode][#ns.games +1] = game
+    
+    end)
+end
+
+
+minetest.register_globalstep(function()
+    for _, games in pairs(ns.games) do
+        for i = 1, #games do
+            games[i]:tick()
+        end
+    end
+end)
+

mods/firefly_state/firefly_state/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_state
+depends = firefly_player, firefly_world

mods/firefly_weapons/firefly_saber/init.lua

@@ -0,0 +1,9 @@
+local ns = firefly
+
+ns.register_node("saber", {
+    drawtype = "mesh",
+    mesh = "firefly_saber.obj",
+    tiles = {"firefly_saber.png"},
+    use_texture_alpha = "blend",
+    on_place = function() end,
+})

mods/firefly_weapons/firefly_saber/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_saber
+depends = firefly_weapons

mods/firefly_weapons/firefly_saber/models/firefly_saber.obj

@@ -0,0 +1,137 @@
+# Made in Blockbench 4.12.5
+mtllib firefly_saber.mtl
+
+o cube
+v 0.03125 0 0.10937500000000007
+v 0.03125 0.5625 0.10937499999999994
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+v -0.03125 0 -0.04687499999999993
+v 0.03125 0.625 0.10937499999999993
+v -0.03125 0.625 0.10937499999999993
+v -0.03125 0.625 0.01562499999999993
+v -0.03125 0.5625 -0.046875000000000056
+v -0.03125 0.5625 0.015624999999999944
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+vt 0.28125 0.90625
+vt 0.28125 1
+vt 0 1
+vt 0.40625 0.9375
+vt 0.4375 0.9375
+vt 0.4375 1
+vt 0.40625 1
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+vt 0.09375 0.625
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+vt 0.15625 0.375
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+vt 0.125 0.65625
+vt 0.09375 0.65625
+vt 0.09375 0.625
+vt 0.40625 0.84375
+vt 0.4375 0.84375
+vt 0.4375 0.90625
+vt 0.40625 0.90625
+vt 0.34375 0.8125
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+vt 0.34375 0.78125
+vt 0.40625 0.5625
+vt 0.4375 0.5625
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+vt 0.40625 0.59375
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+vt 0.28125 0.875
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+vt 0.375 0.734375
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+vt 0.40625 0.765625
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+vt 0.375 0.8125
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+vn -1 0 0
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+vn 0 -1 2.220446049250313e-16
+vn 0 -1 2.220446049250313e-16
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+f 5/1/1 6/2/1 2/3/1 1/4/1
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+f 3/45/12 1/46/12 9/47/12
+o cube
+v 0.046875 -0.3125 0.10937500000000006
+v 0.046875 2.7755575615628914e-17 0.10937499999999999
+v 0.046875 -0.3125 0.015625000000000056
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+v -0.046875 0 0.015624999999999986
+v -0.046875 -0.3125 0.015625000000000056
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+f 19/51/13 22/50/13 20/49/13 17/48/13
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mods/firefly_weapons/firefly_streamer/init.lua

@@ -0,0 +1,9 @@
+local ns = firefly
+
+ns.register_weapon("streamer", {
+    inventory_image = "firefly_weapon_streamer.png",
+    fire_rate = 0.02,
+    fire = function(m, s)
+        ns.add_projectile(m.eye_pos +m.look_dir, {}, vector.new(0, 0, 1):rotate(vector.new(-m.pitch +(math.random() -0.5) /10, m.yaw +(math.random() -0.5) /10, 0)) *100, 0)
+    end
+})

mods/firefly_weapons/firefly_streamer/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_streamer
+depends = firefly_weapons

mods/firefly_weapons/firefly_weapons/init.lua

@@ -0,0 +1,93 @@
+local ns = firefly
+
+
+local function weapon_wielded(s, def, m)
+    local time = minetest.get_us_time()
+    if m.ctl.dig and time -m.last_fire_time >= def.fire_rate *1000000 then
+        def.fire(m, s)
+        m.last_fire_time = time
+    end
+end
+
+local function weapon_wield(s, def, m)
+    m.last_fire_time = minetest.get_us_time()
+end
+
+minetest.register_entity(":firefly:projectile", {
+    initial_properties = {
+        visual = "sprite",
+        textures = {"[fill:1x1:0,0:#333"},
+        visual_size = vector.new(1,1,1) *0.1,
+        pointable = false,
+        physical = true,
+        collide_with_objects = false,
+        collisionbox = {
+            -0.1, -0.1, -0.1,
+            0.1, 0.1, 0.1
+        },
+        static_save = false
+    },
+    on_step = function(e, dtime, movement)
+        if movement and movement.collides then
+            minetest.add_particlespawner {
+                pos = {
+                    min = e.object:get_pos():offset(-0.1,-0.1,-0.1),
+                    max = e.object:get_pos():offset(0.1,0.1,0.1)
+                },
+                acc = vector.new(0, -9.81, 0),
+                time = 0.1,
+                amount = 5,
+                exptime = 0.3,
+                animation = {
+                    type = "vertical_frames",
+                    aspect_w = 1,
+                    aspect_h = 1,
+                    length = -1
+                },
+                texture = ns.solid_color_frames {"#f7d19b", "#f0a951", "#e1820c", "#cd5819", "#5d342c", "#444"},
+                attract = {
+                    kind = "point",
+                    origin = e.object:get_pos(),
+                    strength = {
+                        min = -40,
+                        max = -10
+                    }
+                },
+                size_tween = {
+                    1,
+                    0.02
+                },
+                collisiondetection = true,
+                die_on_collision = true,
+            }
+            e.object:remove()
+        end
+    end
+})
+
+-- Adds a basic gravity-velocity projectile. Custom behaviors can be created by creating a projectile entity and setting its callbacks to one's own implementations.
+function ns.add_projectile(pos, props, vel, gravity)
+    local e = minetest.add_entity(pos, "firefly:projectile")
+    e:set_velocity(vel)
+    e:set_acceleration(vector.new(0, -gravity, 0))
+    return e
+end
+
+--[[
+    {
+        fire_rate = 1, -- Numer of times to fire per second when Punch is held. If negative, such automatic refiring
+                       -- is disabled and this value instead indicates the minimum delay required between clicks to fire successfully.
+        fire = function(m, s) end, -- Called when the weapon should fire.
+    }
+--]]
+function ns.register_weapon(name, def)
+    def.on_wield = weapon_wield
+    def.while_wielded = weapon_wielded
+    def.range = 0
+    def.pointablilities = {
+        nodes = {
+            ["group:everything"] = false
+        }
+    }
+    firefly.register_item(name, def)
+end

mods/firefly_weapons/firefly_weapons/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_weapons
+depends = firefly_player

mods/firefly_world/init.lua

@@ -0,0 +1,298 @@
+local ns = firefly
+
+function ns.register_node(name, def)
+    local needs_alias
+    if not name:find ":" then
+        def._name = name
+        name = "firefly:"..name
+        needs_alias = true
+    end
+    
+    if not def.groups then def.groups = {} end
+    def.groups.everything = 1
+    def.groups.dig_immediate = 3
+    
+    if def._variants then
+        for i, x in ipairs(def.tiles) do
+            if not x.name then
+                def.tiles[i] = {name = x, align_style = "world"}
+            end
+        end
+        for _, x in ipairs(def._variants) do
+            if x == "slab" then
+                ns.register_slab(def)
+            elseif x == "stair" then
+                ns.register_stair(def)
+            end
+        end
+    end
+    
+    minetest.register_node(":"..name, def)
+    
+    if needs_alias then
+        minetest.register_alias(def._name, name)
+    end
+end
+
+function ns.register_slab(def)
+    def = table.copy(def)
+    def._variants = nil
+    
+    local paramtype2 = def.paramtype2 == "color" and "colorfacedir" or "facedir"
+    
+    ns.register_node(def._name.."_slab", extend(def, {
+        drawtype = "nodebox",
+        node_box = {
+            type = "fixed",
+            fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5}
+        },
+        paramtype = "light",
+        paramtype2 = paramtype2
+    }))
+end
+
+function ns.register_stair(def)
+    def = table.copy(def)
+    def._variants = nil
+    
+    def.groups[def._name.."_stair"] = 1
+    
+    local paramtype2 = def.paramtype2 == "color" and "colorfacedir" or "facedir"
+    
+    ns.register_node(def._name.."_stair", extend(table.copy(def), {
+        drawtype = "nodebox",
+        node_box = {
+            type = "fixed",
+            fixed = {{-0.5, -0.5, -0.5, 0.5, 0, 0.5}, {-0.5, -0.5, 0, 0.5, 0.5, 0.5}}
+        },
+        paramtype = "light",
+        paramtype2 = paramtype2
+    }))
+
+    ns.register_node(def._name.."_stair_inner", extend(table.copy(def), {
+        drawtype = "nodebox",
+        node_box = {
+            type = "fixed",
+            fixed = {{-0.5, -0.5, -0.5, 0.5, 0, 0.5}, {-0.5, -0.5, 0, 0.5, 0.5, 0.5}, {-0.5, -0.5, -0.5, 0, 0.5, 0.5}}
+        },
+        paramtype = "light",
+        paramtype2 = paramtype2
+    }))
+
+    ns.register_node(def._name.."_stair_outer", extend(def, {
+        drawtype = "nodebox",
+        node_box = {
+            type = "fixed",
+            fixed = {{-0.5, -0.5, -0.5, 0.5, 0, 0.5}, {-0.5, 0, 0.5, 0, 0.5, 0}}
+        },
+        paramtype = "light",
+        paramtype2 = paramtype2
+    }))
+end
+
+
+
+ns.register_node("dirt", {
+    tiles = {"firefly_dirt.png"}
+})
+
+ns.register_node("dirt_grass", {
+    tiles = {"firefly_grass_top.png", "firefly_dirt.png", "firefly_dirt.png^firefly_grass_side.png"}
+})
+
+ns.register_node("grass", {
+    drawtype = "plantlike",
+    tiles = {"firefly_grass.png"},
+    paramtype = "light",
+    sunlight_propagates = true,
+    walkable = false,
+})
+
+
+ns.register_node("snow", {
+    tiles = {"firefly_snow_top.png"}
+})
+
+ns.register_node("snow_leveled", {
+    drawtype = "nodebox",
+    tiles = {"firefly_snow_top.png"},
+    node_box = {
+        type = "leveled",
+        fixed = {
+            -0.5, -0.5, -0.5,
+             0.5, 6/16,  0.5
+        }
+    },
+    paramtype = "light",
+    paramtype2 = "leveled",
+    place_param2 = 8
+})
+
+ns.register_node("snow_grass", {
+    drawtype = "plantlike",
+    tiles = {"firefly_snow_grass.png"},
+    paramtype = "light",
+    sunlight_propagates = true,
+    walkable = false,
+})
+
+
+ns.register_node("sand", {
+    tiles = {"firefly_sand.png"}
+})
+
+ns.register_node("sand_leveled", {
+    drawtype = "nodebox",
+    tiles = {"firefly_sand.png"},
+    node_box = {
+        type = "leveled",
+        fixed = {
+            -0.5, -0.5, -0.5,
+             0.5, 6/16,  0.5
+        }
+    },
+    paramtype = "light",
+    paramtype2 = "leveled",
+    place_param2 = 64
+})
+
+ns.register_node("sandstone", {
+    tiles = {"firefly_sandstone.png"},
+    _variants = {"slab", "stair"},
+})
+
+ns.register_node("sandstone_sandy", {
+    tiles = {"firefly_sand.png", "firefly_sandstone.png", "firefly_sandstone.png^firefly_sand_side_2.png"}
+})
+
+ns.register_node("sandstone_bricks", {
+    tiles = {"firefly_sandstone_bricks.png"},
+    _variants = {"slab", "stair"},
+})
+
+ns.register_node("sandstone_bricks_sandy", {
+    tiles = {"firefly_sand.png", "firefly_sandstone_bricks.png", "firefly_sandstone_bricks.png^firefly_sand_side.png"}
+})
+
+ns.register_node("cactus", {
+    tiles = {"firefly_cactus_top.png", "firefly_cactus_top.png", "firefly_cactus_side.png"},
+    paramtype2 = "facedir"
+})
+
+
+ns.register_node("stone", {
+    tiles = {"firefly_stone.png"},
+    _variants = {"slab", "stair"},
+})
+
+ns.register_node("stone_bricks", {
+    tiles = {"firefly_stone_bricks.png"},
+    _variants = {"slab", "stair"},
+})
+
+
+ns.register_node("metal_floor", {
+    tiles = {"firefly_metal_floor.png"},
+    _variants = {"slab", "stair"},
+})
+
+ns.register_node("orange_light", {
+    tiles = {"firefly_orange_light.png"},
+    paramtype = "light",
+    light_source = 14
+})
+
+ns.register_node("gray_pillar", {
+    tiles = {"firefly_gray_pillar_top.png", "firefly_gray_pillar_top.png", "firefly_gray_pillar_side.png"},
+    paramtype2 = "facedir",
+    _variants = {"slab", "stair"},
+})
+
+ns.register_node("gray_column", {
+    tiles = {{name = "firefly_gray_column.png"}},
+    paramtype2 = "4dir",
+    _variants = {"slab", "stair"},
+})
+
+ns.register_node("gray_wall", {
+    tiles = {"firefly_gray_wall.png"},
+    _variants = {"slab", "stair"},
+})
+
+ns.register_node("gray_tile", {
+    tiles = {"firefly_gray_tile.png"},
+    _variants = {"slab", "stair"},
+})
+
+
+local brown = "#584e2d"
+ns.register_node("brown_wall", {
+    tiles = {"firefly_wall.png"},
+    _variants = {"slab", "stair"},
+    color = brown,
+})
+
+ns.register_node("brown_column", {
+    tiles = {{name = "firefly_column.png"}},
+    paramtype2 = "4dir",
+    _variants = {"slab", "stair"},
+    color = brown,
+})
+
+ns.register_node("brown_pillar", {
+    tiles = {"firefly_pillar_top.png", "firefly_pillar_top.png", "firefly_pillar_side.png"},
+    paramtype2 = "facedir",
+    _variants = {"slab", "stair"},
+    color = brown,
+})
+
+
+ns.register_node("glass", {
+    paramtype = "light",
+    sunlight_propagates = true,
+    tiles = {{name = "firefly_glass.png", align_style = "world"}},
+    use_texture_alpha = "clip",
+    _variants = {"slab", "stair"},
+})
+
+ns.register_node("colored_glass", {
+    drawtype = "glasslike",
+    paramtype = "light",
+    paramtype2 = "color",
+    palette = "firefly_glass_palette.png",
+    sunlight_propagates = true,
+    tiles = {{name = "firefly_colored_glass.png", align_style = "world"}},
+    use_texture_alpha = "blend",
+    _variants = {"slab", "stair"},
+})
+
+ns.register_node("steel_grate", {
+    drawtype = "mesh",
+    mesh = "firefly_steel_grate.obj",
+    tiles = {{name = "firefly_steel_grate.png", backface_culling = true}},
+    use_texture_alpha = "clip",
+    paramtype = "light",
+    sunlight_propagates = true,
+    paramtype2 = "facedir",
+    collision_box = {
+        type = "fixed",
+        fixed = {
+            -0.5, 6/16, -0.5,
+            0.5, 0.5, 0.5
+        }
+    },
+    selection_box = {
+        type = "fixed",
+        fixed = {
+            -0.5, 6/16, -0.5,
+            0.5, 0.5, 0.5
+        }
+    }
+})
+
+minetest.register_chatcommand("chest", {
+    privs = {give = true},
+    func = function(name)
+        minetest.registered_chatcommands.giveme.func(name, "chest_with_everything:chest")
+    end
+})

mods/firefly_world/mod.conf

@@ -0,0 +1,2 @@
+name = firefly_world
+depends = firefly_base

mods/firefly_world/models/firefly_steel_grate.obj

@@ -0,0 +1,49 @@
+# Made in Blockbench 4.12.5
+mtllib firefly_steel_grate.mtl
+
+o cube
+v 0.5 0.5 0.5
+v 0.5 0.5 -0.5
+v 0.5 0.375 0.5
+v 0.5 0.375 -0.5
+v -0.5 0.5 -0.5
+v -0.5 0.5 0.5
+v -0.5 0.375 -0.5
+v -0.5 0.375 0.5
+vt 0.5 1
+vt 1 1
+vt 1 0.9375
+vt 0.5 0.9375
+vt 0.5 0.9375
+vt 1 0.9375
+vt 1 0.875
+vt 0.5 0.875
+vt 0.5 0.875
+vt 1 0.875
+vt 1 0.8125
+vt 0.5 0.8125
+vt 0.5 0.8125
+vt 1 0.8125
+vt 1 0.75
+vt 0.5 0.75
+vt 0.5 0.5
+vt 0 0.5
+vt 0 1
+vt 0.5 1
+vt 0.5 0.5
+vt 0 0.5
+vt 0 0
+vt 0.5 0
+vn 0 0 -1
+vn 1 0 0
+vn 0 0 1
+vn -1 0 0
+vn 0 1 0
+vn 0 -1 0
+usemtl m_18cc3c99-d6ee-54f4-84b1-03e8119d680b
+f 4/4/1 7/3/1 5/2/1 2/1/1
+f 3/8/2 4/7/2 2/6/2 1/5/2
+f 8/12/3 3/11/3 1/10/3 6/9/3
+f 7/16/4 8/15/4 6/14/4 5/13/4
+f 6/20/5 1/19/5 2/18/5 5/17/5
+f 7/24/6 4/23/6 3/22/6 8/21/6