added hidden doors/destroyable walls, fixed game reloading (tile clone)

grid/grid.go

@@ -61,12 +61,18 @@ func NewGrid(world *ecs.World,
 		components.Renderable,
 		components.Transient](world)
 
+	doormapper := generic.NewMap3[
+		components.Position,
+		components.Renderable,
+		components.Destroyable](world)
+
 	var pos *components.Position
 	var vel *components.Velocity
 	var render *components.Renderable
 	var speed *components.Speed
 	var transient *components.Transient
 	var player *components.Player
+	var destroyable *components.Destroyable
 
 	playerobserver := observers.GetPlayerObserver(world)
 	obstacleobserver := observers.GetObstacleObserver(world)
@@ -99,6 +105,10 @@ func NewGrid(world *ecs.World,
 				entity := transmapper.New()
 				pos, render, transient = transmapper.Get(entity)
 				transient.Sprites = tile.TileNames
+			case tile.Destroyable:
+				entity := doormapper.New()
+				pos, render, destroyable = doormapper.Get(entity)
+				destroyable.Sprites = tile.Tiles
 			default:
 				log.Fatalln("unsupported tile type encountered")
 			}
@@ -143,7 +153,15 @@ func (grid *Grid) GetTile(
 	return tile
 }
 
-func (grid *Grid) SetTile(tile *assets.Tile, point image.Point) {
+func (grid *Grid) RemoveTile(point image.Point) {
+	delete(grid.Map, point)
+}
+
+func (grid *Grid) SetFloorTile(point image.Point) {
+	grid.Map[point] = assets.Tiles[' ']
+}
+
+func (grid *Grid) SetSolidTile(tile *assets.Tile, point image.Point) {
 	solidmapper := generic.NewMap4[
 		components.Position,
 		components.Renderable,