Add the rest of the game.

mods/artifact_characters/init.lua

@@ -42,6 +42,15 @@ function ns.apply_vix(m)
 end
 
 function ns._swap_character(m)
+    -- If Key was pointing at something Vix shouldn't be able to interact with,
+    -- but Vix is also pointing at it, then remove the interaction marker since
+    -- it would be misleading.
+    if m.pointed_obj and m.interaction_marker and (not m.pointed_obj._can_interact or m.pointed_obj:_can_interact(m)) then
+        m.object:hud_remove(m.interaction_marker)
+        m.interaction_marker = nil
+        m.interaction_start = nil
+    end
+    
     if m.character == "vix" then
         artifact.sidekick.character = "vix"
         m:set_character("key")
@@ -52,6 +61,17 @@ function ns._swap_character(m)
         ns.apply_vix(m)
     end
     
+    -- If Vix was pointing at something whackable, and the player then switches
+    -- to Key who is pointing at the same thing, we should show the whack icon.
+    if m.character == "key" and m.pointed_node and minetest.registered_nodes[m.pointed_node.node_under.name].groups.whackable then
+        m.whack_hud = m.object:hud_add {
+            type = "image_waypoint",
+            world_pos = m.pointed_node.under,
+            scale = {x=3,y=3},
+            text = "artifact_icon_whack.png"
+        }
+    end
+    
     -- We don't need to have the sidekick entity during testing.
     if artifact.sidekick.pos or not artifact.debug then
         -- `m.pos` includes eye_height, and we don't want that here.
@@ -124,6 +144,10 @@ function ns.swap_character(m)
             duration = 0.3
         }
     }
+    artifact.play_sound {
+        name = "artifact_character_swap",
+        to_player = m.name
+    }
     minetest.after(0.3, function()
         ns._swap_character(m)
         fade:animate {