Changes:

- use toggle tile for all toggling entities (transient, switch, door)
- get rod of hard coded sprites (exception: particle class, to be
  fixed later)
- changed switch sprite (rect instead of elipse)

grid/grid.go

@@ -126,7 +126,7 @@ func NewGrid(world *ecs.World,
 			case tile.Transient:
 				entity := transmapper.New()
 				pos, render, transient = transmapper.Get(entity)
-				transient.Sprites = tile.TileNames
+				transient.Wall = tile.ToggleSprite
 
 			case tile.Destroyable:
 				entity := destructiblemapper.New()
@@ -139,16 +139,16 @@ func NewGrid(world *ecs.World,
 			case tile.Switch:
 				entity := switchmapper.New()
 				pos, render, _, switcher = switchmapper.Get(entity)
-				switcher.CloseSprite = tile.Tiles[0]
-				switcher.OpenSprite = tile.Tiles[1]
+				switcher.CloseSprite = tile.Sprite
+				switcher.OpenSprite = tile.ToggleSprite
 				switcher.Ref = tile.Ref
 				switches = append(switches, entity)
 
 			case tile.Door:
 				entity := doormapper.New()
 				pos, render, _, door = doormapper.Get(entity)
-				door.CloseSprite = tile.Tiles[0]
-				door.OpenSprite = tile.Tiles[1]
+				door.CloseSprite = tile.Sprite
+				door.OpenSprite = tile.ToggleSprite
 				door.Id = tile.Id
 				doors = append(doors, entity)
 
@@ -156,11 +156,8 @@ func NewGrid(world *ecs.World,
 				log.Fatalln("unsupported tile type encountered")
 			}
 
-			// FIXME:  this image  is never being  used because  it is
-			// being overwritten in game/levels.go:LevelToSlice(). The
-			// image is  taken from the LDTK map, not  from the Tile{}
-			// definition anymore
 			render.Image = tile.Sprite
+			render.Pos = pos
 
 		default:
 			// empty  cell, this is  where the player[s]  move. No
@@ -227,17 +224,5 @@ func (grid *Grid) SetFloorTile(point image.Point) {
 }
 
 func (grid *Grid) SetSolidTile(tile *assets.Tile, point image.Point) {
-	solidmapper := generic.NewMap4[
-		components.Position,
-		components.Renderable,
-		components.Tilish,
-		components.Solid](grid.World)
-
 	grid.Map[point] = tile
-
-	entity := solidmapper.New()
-	pos, render, _, _ := solidmapper.Get(entity)
-
-	render.Image = tile.Sprite
-	pos.Update(point.X*grid.Tilesize, point.Y*grid.Tilesize, grid.Tilesize)
 }