From: Alexis Laferrière <alexis.laf@xymus.net>
Date: Fri, 7 Feb 2014 16:42:42 +0000 (-0500)
Subject: examples/dino: replace closure by a custom sorter
X-Git-Tag: v0.6.5~58^2~3
X-Git-Url: http://nitlanguage.org?hp=dcb1f37c02494a5740f0283b490261e25c705725

examples/dino: replace closure by a custom sorter

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
---

diff --git a/examples/mnit_dino/src/game_logic.nit b/examples/mnit_dino/src/game_logic.nit
index abcee06..74b8673 100644
--- a/examples/mnit_dino/src/game_logic.nit
+++ b/examples/mnit_dino/src/game_logic.nit
@@ -39,6 +39,8 @@ class Game
 	protected var random_radius_diff : Int =
 		random_radius_max - random_radius_min
 
+	var entities_sorter = new EntitiesSorter
+
 	init( cavemen_nbr : Int )
 	do
 		srand
@@ -86,8 +88,7 @@ class Game
 		end
 
 		# sort for blitting, firsts and in the back
-		# FIXME: remove closure
-		entities.sort !cmp( a, b ) = b.pos.y <=> a.pos.y
+		entities_sorter.sort entities
 
 		return turn
 	end
@@ -337,3 +338,10 @@ class Javelin
 		end
 	end
 end
+
+# Sort entities on screen in order of Y, entities in the back are drawn first
+class EntitiesSorter
+	super AbstractSorter[Entity]
+
+	redef fun compare(a, b) do return b.pos.y <=> a.pos.y
+end