X-Git-Url: http://nitlanguage.org

diff --git a/examples/mnit_dino/src/game_logic.nit b/examples/mnit_dino/src/game_logic.nit
index 1db0880..b148778 100644
--- a/examples/mnit_dino/src/game_logic.nit
+++ b/examples/mnit_dino/src/game_logic.nit
@@ -159,13 +159,24 @@ end
 class Entity
 	super Turnable
 
-	fun run_over_distance: Int do return 500
+	fun run_over_distance_x: Int do return 50
+	fun run_over_distance_y: Int do return 16
+
 	var pos = new GamePos( 0, 0 )
 
 	fun squared_dist_with_dino( game : Game ) : Int
 	do
 		return pos.squared_dist_with( game.dino.pos )
 	end
+
+	fun under_dino(game: Game): Bool
+	do
+		var dy = pos.y - game.dino.pos.y
+		if dy.abs > run_over_distance_y then return false
+
+		var dx = pos.x - game.dino.pos.x
+		return dx.abs <= run_over_distance_x
+	end
 end
 
 class MovingEntity
@@ -233,8 +244,7 @@ class Dino
 		end
 
 		for i in t.game.items_on_ground do
-			var dwd = i.squared_dist_with_dino(t.game)
-			if dwd < i.run_over_distance then
+			if i.under_dino(t.game) then
 				t.game.items_on_ground.remove i
 				t.game.entities.remove i
 			end
@@ -272,9 +282,7 @@ class Caveman
 	redef fun do_turn( t )
 	do
 		if is_alive then
-			var dwd = squared_dist_with_dino( t.game )
-
-			if dwd < run_over_distance then
+			if under_dino(t.game) then
 				if t.game.dino.is_alive then die(t)
 				return
 			else if is_afraid( t ) then
@@ -282,6 +290,7 @@ class Caveman
 			else if t.game.dino.life <= 0 then
 				# dino is dead, chill
 			else
+				var dwd = squared_dist_with_dino( t.game )
 				if dwd < fear_distance then
 					afraid_until = t.nbr + fear_duration