examples/plateform: make coin drop sparkle gfx when taken

examples/gameplay/plateform/actors/coin.lua

@@ -7,6 +7,7 @@ function Coin:new(world, x, y)
 end
 
 function Coin:takeCoin(other)
+  self.obj.GFX(self.world, self.x + 8, self.y + 8, "sparkle")
   self:destroy( )
 end
 

examples/gameplay/plateform/actors/init.lua

@@ -4,6 +4,7 @@ local Obj = {}
 local cwd  = (...):gsub('%.init$', '') .. "."
 
 Obj.Player              = require(cwd .. "player")
+Obj.GFX                 = require("gamecore.modules.world.actors.gfx2D")
 
 Obj.index     = {}
 Obj.index["player"]     = require(cwd ..  "player")