init audio and hurt sound

lib/spellbook.lua

@@ -144,6 +144,7 @@ function attack:cast(caster, target)
                     AnimationNode {
                         function(node)
                             targetSprite:animate("hurt", node)
+                            Tree.assets.files.audio.sounds.hurt:play()
                         end
                     }
                 }

lib/utils/asset_bundle.lua

@@ -50,6 +50,10 @@ function AssetBundle.loadFile(path)
         return love.graphics.newShader(path);
     elseif (ext == "lua") then
         return require(string.gsub(path, ".lua", ""))
+    elseif (ext == "mp3") and string.find(path, "sounds") then
+        return love.audio.newSource(path, 'static')
+    elseif (ext == "mp3") and string.find(path, "music") then
+        return love.audio.newSource(path, 'stream')
     end
     return nil
 end