More refactoring work ....

src/game.coffee

@@ -17,10 +17,8 @@ app.game =
 
     @hud.render()
 
-  step: ->
-
   mousedown: (event)->
-    tile = @posToTile(event.x, event.y)
+    tile = posToTile(event.x, event.y)
     tile.click(event.button)
 
     @currentSelectedTile.deselect() if @currentSelectedTile
@@ -28,7 +26,7 @@ app.game =
     @currentSelectedTile = tile
 
   mousemove: (event)->
-    tile = @posToTile(event.x, event.y)
+    tile = posToTile(event.x, event.y)
 
     if tile
       if tile != @currentHoveredTile
@@ -50,12 +48,6 @@ app.game =
   createMiner: ->
     if @currentSelectedTile and @checkRessources 'lubinit', 30, true
       @currentSelectedTile.entity = new Miner
-      @currentSelectedTile.deselect() if @currentSelectedTile
-      @currentSelectedTile = null
-
-  posToTile: (x, y)->
-    pos = (Math.floor(y/8)*20) + Math.floor(x/8)
-    @map[pos]
 
   checkRessources: (type, amount, drain = false) ->
     if @resources[type] >= amount

src/tools.coffee

@@ -3,3 +3,7 @@ getRandomInt = (min, max) ->
 
 allResourceTypes = ->
   (k for own k of app.game.resources)
+
+posToTile = (x, y)->
+  pos = (Math.floor(y/8)*20) + Math.floor(x/8)
+  app.game.map[pos]