feat: add support for abstract

sonic-radiance.love/game/modules/subgames/world/actors/fighters/mixins/abstract.lua

@@ -0,0 +1,7 @@
+local FighterAbstract = Object:extend()
+
+function FighterAbstract:initAbstract()
+    self.abstract = self:getAbstract()
+end
+
+return FighterAbstract

sonic-radiance.love/game/modules/subgames/world/actors/fighters/player/init.lua

@@ -20,6 +20,10 @@ function Player:new(world, x, y, z, id)
   self:initTeam()
 end
 
+function Player:getAbstract()
+  return game.characters.list[game.characters:getActiveCharacter()]
+end
+
 function Player:updateStart(dt)
   self:applyInputs()
 end

sonic-radiance.love/game/modules/subgames/world/actors/fighters/player/sprites.lua

@@ -31,6 +31,7 @@ end
 
 function SpritedPlayer:updateCurrentCharset()
   self.charName = game.characters:getActiveCharacter()
+  self:initAbstract()
   self:changeSprite(self.charName)
 end