add moving animation support, fix debug printing

grid/grid.go

@@ -159,24 +159,28 @@ func NewGrid(world *ecs.World,
 			render.Image = tile.Sprite
 			render.Pos = pos
 
-			if tile.Animation.OnCollision {
+			switch {
+			case tile.Animation.OnCollision:
 				render.CollisionAnimate.Sprites = tile.Animation.CollisionSheet.Sprites
 				render.CollisionAnimate.Width = tile.Animation.CollisionSheet.Width
 				render.CollisionAnimate.Height = tile.Animation.CollisionSheet.Height
-			}
 
-			if tile.Animation.OnDestruction {
+			case tile.Animation.OnDestruction:
 				render.DestructionAnimate.Sprites = tile.Animation.DestructionSheet.Sprites
 				render.DestructionAnimate.Width = tile.Animation.DestructionSheet.Width
 				render.DestructionAnimate.Height = tile.Animation.DestructionSheet.Height
-			}
 
-			if tile.Animation.OnIdle {
+			case tile.Animation.OnIdle:
 				render.IdleAnimate.Sprites = tile.Animation.IdleSheet.Sprites
 				render.IdleAnimate.Width = tile.Animation.IdleSheet.Width
 				render.IdleAnimate.Height = tile.Animation.IdleSheet.Height
 				render.StartAnimation(components.Idle)
 				render.Hidden = true // we do NOT render the sprite, but the idle animation instead
+
+			case tile.Animation.OnMoving:
+				render.MovingAnimate.Sprites = tile.Animation.IdleSheet.Sprites
+				render.MovingAnimate.Width = tile.Animation.IdleSheet.Width
+				render.MovingAnimate.Height = tile.Animation.IdleSheet.Height
 			}
 
 		default: