Add the intro cutscene, a start to the map, and various other things.

mods/artifact_mechanisms/init.lua

@@ -1,6 +1,8 @@
 
 minetest.register_entity(":display", {
     initial_properties = {
+        visual = "sprite",
+        textures = {"blank.png"},
         pointable = false,
         static_save = false
     },
@@ -30,6 +32,7 @@ end
 
 include "basics.lua"
 include "doors.lua"
+include "large_doors.lua"
 include "chest.lua"
 
 
@@ -58,28 +61,35 @@ function artifact.load_schematic(dst, path, rot)
     end
 end
 
-
-minetest.register_entity(":test", {
-    initial_properties = {
-        static_save = false,
-        visual = "mesh",
-        mesh = "artifact_character.gltf",
-    },
-    on_activate = function(e)
---        e.object:set_bone_override("root", {
---            position = {vec = vector.new(15,15,15)}
---        })
-    end,
-    on_rightclick = function(e, p)
-        local v = vector.new(0, p:get_properties().eye_height *10, 0)
-        p:set_eye_offset(v,v,v)
-        p:set_attach(e.object, "Head")
-    end,
-    on_punch = function(e, p)
-        p:set_detach()
+function artifact.get_schem_size(path)
+    local f = io.open(path..".mts", "rb")
+        
+    local function read_u16(file)
+        local data = file:read(2)
+        if not data or #data < 2 then return nil end
+        local a, b = data:byte(1, 2)
+        return a + b
+    end
+    local magic = f:read(4)
+    if magic ~= "MTSM" then
+        f:close()
+        error("Not a valid .mts file (missing` MTSM` header).")
     end
-})
 
+    local version = read_u16(f)
+    if not version or version > 4 then
+        f:close()
+        error("Unsupported .mts version: "..tostring(version))
+    end
+    
+    local size_x = read_u16(f)
+    local size_y = read_u16(f)
+    local size_z = read_u16(f)
+    
+    f:close()
+    
+    return vector.new(size_x, size_y, size_z)
+end
 
 if artifact.debug then
     
@@ -103,6 +113,32 @@ if artifact.debug then
                 }
             },
         })
+        minetest.override_item("testtools:remover", {
+            pointabilities = {
+                nodes = {
+                    -- This gets added to everything in debug mode.
+                    ["group:dig_immediate"] = true,
+                    air = false,
+                },
+                objects = {
+                    -- The display entities should all be immortal.
+                    ["group:immortal"] = false
+                }
+            },
+        })
+        minetest.override_item("testtools:node_meta_editor", {
+            pointabilities = {
+                nodes = {
+                    -- This gets added to everything in debug mode.
+                    ["group:dig_immediate"] = true,
+                    air = false,
+                },
+                objects = {
+                    -- The display entities should all be immortal.
+                    ["group:immortal"] = false
+                }
+            },
+        })
         minetest.override_item("testtools:param2tool", {
             pointabilities = {
                 nodes = {