Fixed weapon effect not using audio manager

src/app/view/battle/Arena.ts

@@ -77,6 +77,11 @@ module SpaceTac.View {
             });
         }
 
+        // Get the current GameUI instance
+        getGame(): GameUI {
+            return this.battleview.gameui;
+        }
+
         // Remove a ship sprite
         removeShip(ship: Game.Ship): void {
             var sprite = this.findShipSprite(ship);

src/app/view/battle/WeaponEffect.ts

@@ -69,7 +69,7 @@ module SpaceTac.View {
 
         // Submachine gun effect (small chain of bullets)
         private gunEffect(): void {
-            this.arena.game.sound.play("battle-weapon-bullets");
+            this.arena.getGame().audio.playOnce("battle-weapon-bullets");
 
             var source = this.arena.toGlobal(new PIXI.Point(this.source.x, this.source.y));
             var destination = this.arena.toGlobal(new PIXI.Point(this.destination.x, this.destination.y));