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

game/game.go

@@ -96,7 +96,6 @@ func (game *Game) Update() error {
 
 		if next == Play {
 			// fresh setup of actual level every time we enter the play scene
-			//game.Scenes[Play] = NewLevelScene(game, gameobserver.CurrentLevel)
 			game.Scenes[Play].SetLevel(gameobserver.CurrentLevel)
 		}
 

game/levels.go

@@ -3,6 +3,7 @@ package game
 import (
 	"image"
 	"log"
+	"log/slog"
 	"openquell/assets"
 	"openquell/components"
 	"openquell/grid"
@@ -15,12 +16,16 @@ import (
 	"github.com/mlange-42/arche/ecs"
 )
 
+type Map map[image.Point]*assets.Tile
+type BackupMap map[image.Point]assets.Tile
+
 type Level struct {
 	Cellsize, Width, Height int
 	World                   *ecs.World
 	Name                    string
 	Description             string
-	Mapslice                map[image.Point]*assets.Tile
+	Mapslice                Map
+	BackupMapslice          Map
 	GridContainer           *grid.GridContainer
 	Systems                 []systems.System
 	Grid                    *grid.Grid
@@ -45,16 +50,21 @@ func NewLevel(game *Game, cellsize int, plan *assets.RawLevel) *Level {
 
 	systemlist = append(systemlist, systems.NewTransientSystem(game.World, gridcontainer))
 
+	systemlist = append(systemlist, systems.NewDestroyableSystem(game.World, gridcontainer))
+
+	mapslice, backupmap := LevelToSlice(game, plan, cellsize)
+
 	return &Level{
-		Mapslice:      LevelToSlice(game, plan, cellsize),
-		Cellsize:      cellsize,
-		World:         game.World,
-		Width:         game.ScreenWidth,
-		Height:        game.ScreenHeight,
-		Description:   plan.Description,
-		Name:          plan.Name,
-		GridContainer: gridcontainer,
-		Systems:       systemlist,
+		Mapslice:       mapslice,
+		BackupMapslice: backupmap,
+		Cellsize:       cellsize,
+		World:          game.World,
+		Width:          game.ScreenWidth,
+		Height:         game.ScreenHeight,
+		Description:    plan.Description,
+		Name:           plan.Name,
+		GridContainer:  gridcontainer,
+		Systems:        systemlist,
 	}
 }
 
@@ -77,6 +87,12 @@ func (level *Level) Position2Point(position *components.Position) image.Point {
 	}
 }
 
+func (level *Level) RestoreMap() {
+	for point, tile := range level.BackupMapslice {
+		level.Mapslice[point] = tile.Clone()
+	}
+}
+
 func (level *Level) SetupGrid(game *Game) {
 	// generic variant does not work here:
 	// selector := generic.NewFilter1[components.Position]()
@@ -92,15 +108,20 @@ func (level *Level) SetupGrid(game *Game) {
 	playerobserver := observers.GetPlayerObserver(level.World)
 	playerobserver.RemoveEntities()
 
+	// get rid of possibly manipulated map
+	level.RestoreMap()
+
 	// setup world
+	slog.Debug("new grid?")
 	level.GridContainer.SetGrid(
 		grid.NewGrid(game.World, level.Cellsize, level.Width, level.Height, level.Mapslice))
 }
 
 // parses a RawLevel and generates a mapslice from it, which is being used as grid
-func LevelToSlice(game *Game, level *assets.RawLevel, tilesize int) map[image.Point]*assets.Tile {
+func LevelToSlice(game *Game, level *assets.RawLevel, tilesize int) (Map, Map) {
 	size := game.ScreenWidth * game.ScreenHeight
-	mapslice := make(map[image.Point]*assets.Tile, size)
+	mapslice := make(Map, size)
+	backupmap := make(Map, size)
 
 	for y, line := range strings.Split(string(level.Data), "\n") {
 		if len(line) != game.ScreenWidth/tilesize && y < game.ScreenHeight/tilesize {
@@ -113,9 +134,11 @@ func LevelToSlice(game *Game, level *assets.RawLevel, tilesize int) map[image.Po
 				log.Fatalf("unregistered tile type %c encountered", char)
 			}
 
-			mapslice[image.Point{x, y}] = assets.Tiles[byte(char)]
+			tile := assets.Tiles[byte(char)]
+			mapslice[image.Point{x, y}] = tile
+			backupmap[image.Point{x, y}] = tile.Clone()
 		}
 	}
 
-	return mapslice
+	return mapslice, backupmap
 }