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)

systems/grid_system.go

@@ -1,6 +1,7 @@
 package systems
 
 import (
+	"log/slog"
 	. "openquell/components"
 
 	"github.com/hajimehoshi/ebiten/v2"
@@ -53,10 +54,13 @@ func (system *GridSystem) Draw(screen *ebiten.Image) {
 		counter := 0
 		for query.Next() {
 			sprite, pos, _ := query.Get()
+
 			counter++
 			op.GeoM.Reset()
 			op.GeoM.Translate(float64(pos.X), float64(pos.Y))
+			slog.Debug("rendering tile", "sprite", sprite)
 			system.Cache.DrawImage(sprite.Image, op)
+
 		}
 
 		op.GeoM.Reset()

systems/pair_system.go

@@ -72,6 +72,7 @@ func (system *PairSystem) Update() error {
 			if ok {
 				// player moved on top of the switch
 				switcher.Toggle()
+
 				// open door
 				door := system.World.Relations().Get(query.Entity(), relID)
 				EntitiesToSwitch = append(EntitiesToSwitch,

systems/transient_system.go

@@ -26,7 +26,7 @@ type TransientSystem struct {
 
 type TransientToWall struct {
 	Entity    ecs.Entity
-	NewSprite string
+	NewSprite *ebiten.Image
 	Position  components.Position
 }
 
@@ -77,7 +77,7 @@ func (system *TransientSystem) Update() error {
 					EntitiestoMakeSolid = append(EntitiestoMakeSolid, TransientToWall{
 						Entity:    query.Entity(),
 						Position:  *transientposition,
-						NewSprite: transient.GetNext(),
+						NewSprite: transient.Wall,
 					})
 					slog.Debug("transient added to make solid")
 				}
@@ -91,18 +91,20 @@ func (system *TransientSystem) Update() error {
 		system.World.RemoveEntity(convertible.Entity)
 
 		// replace with solid entity
-		slog.Debug("transient add solid")
+		slog.Debug("transient add solid", "wall", convertible.NewSprite.Bounds())
 		entity := system.SolidMapper.New()
 		pos, render, _, _ := system.SolidMapper.Get(entity)
 
 		// set it up apropriately
 		pos.Set(&convertible.Position)
-		render.Image = assets.Assets[convertible.NewSprite]
+		render.Image = convertible.NewSprite
+		render.Pos = pos
+		slog.Debug("new render", "render", render)
 
 		//  also  setup the  grid  tile  with  a  new solid,  so  that
 		// collision detection works
 		system.GridContainer.Grid.SetSolidTile(
-			assets.NewTileBlock(convertible.NewSprite),
+			assets.NewTileBlock(),
 			convertible.Position.Point(),
 		)
 	}