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)

game/levels.go

@@ -8,6 +8,7 @@ import (
 	"openquell/grid"
 	"openquell/observers"
 	"openquell/systems"
+	"openquell/util"
 	"strings"
 
 	"github.com/hajimehoshi/ebiten/v2"
@@ -173,20 +174,27 @@ func LevelToSlice(game *Game, level *ldtkgo.Level, tilesize int) (Map, Map) {
 					tile := assets.Tiles[entity.Identifier]
 					tile.Id = entity.IID
 
-					ref := entity.PropertyByIdentifier("Entity_ref")
-					if ref != nil {
-						if ref.Value != nil {
-							refid := ref.Value.(map[string]interface{})
-							tile.Ref = refid["entityIid"].(string)
-							slog.Debug("LOAD TILE", "tileref",
-								tile.Ref, "tileid", tile.Id,
-								"name", entity.Identifier,
-								"isswitch", tile.Switch,
-								"isdoor", tile.Door,
-							)
-						}
+					toggleRect := util.GetPropertyToggleTile(entity)
+					if toggleRect != nil {
+						tile.ToggleSprite = tileset.SubImage(
+							image.Rect(toggleRect.X, toggleRect.Y,
+								toggleRect.X+toggleRect.W,
+								toggleRect.Y+toggleRect.H)).(*ebiten.Image)
+
 					}
 
+					tile.Ref = util.GetPropertyRef(entity)
+					if tile.Transient {
+						slog.Debug("LOAD TILE", "tileref",
+							tile.Ref, "tileid", tile.Id,
+							"name", entity.Identifier,
+							"isswitch", tile.Switch,
+							"isdoor", tile.Door,
+							"togglerect", toggleRect,
+							"tilerect", entity.TileRect,
+						)
+
+					}
 					tileRect := entity.TileRect
 
 					tile.Sprite = tileset.SubImage(