dry key_pressewd code

Author: monkstone

processing_app/library/library_proxy/deadgrid_events.rb

@@ -41,31 +41,26 @@ def key_pressed
     unless deadgrid.grid[player.x][player.y].zero?
       deadgrid.grid[player.x][player.y] = 0
     end
+    return
   when LEFT
     player.direction = 0
     return unless player.x > 0
     return player.x -= 1 if deadgrid.can_move?(player, 1)
-    changed
-    notify_observers(player, deadgrid)
   when RIGHT
     player.direction = 2
     # check bounds
     return unless player.x < deadgrid.width
     return player.x += 1 if deadgrid.can_move?(player, 1)
-    changed
-    notify_observers(player, deadgrid)
   when UP
     player.direction = 1
     # check bounds
     return unless player.y > 0
     return player.y -= 1 if deadgrid.can_move?(player, 1)
-    changed
-    notify_observers(player, deadgrid)
   when DOWN
     player.direction = 3
     return unless player.y < deadgrid.height
     return player.y += 1 if deadgrid.can_move?(player, 1)
-    changed
-    notify_observers(player, deadgrid)
   end
+  changed
+  notify_observers(player, deadgrid)
 end