changes:

- exchanged switch+door sprites
- added asesprite cheat sheet
- implemented door toggle on switch toggle

asesprite.org

@@ -0,0 +1,23 @@
+| key          | sub key    | function              | hint                             |
+|--------------+------------+-----------------------+----------------------------------|
+| b            |            | brush                 |                                  |
+|              | d          | draw                  |                                  |
+|              | s          | shape                 | select color range before        |
+|              | x          | switch color order    |                                  |
+|              | a          | alpha shape           |                                  |
+|              | ctrl+wheel | brush size            |                                  |
+| c            |            | pick color            |                                  |
+| e            |            | erase                 |                                  |
+| z            |            | zoom                  | click and drag, left+right click |
+| middle mouse |            | move canvas           |                                  |
+| f            |            | fill                  | inside selection                 |
+| ctrl-d       |            | no selection          |                                  |
+| m            |            | marquee               | rect selection                   |
+| w            |            | select by color       | contiguous: all or only region   |
+| q            |            | lasso select          |                                  |
+| tab          |            | hide/show layers      |                                  |
+| v            |            | switch layer          | by click on region               |
+| alt-n        |            | new frame             |                                  |
+| shift-n      |            | new layer             |                                  |
+| ctrl-f       |            | hide/show ui elements |                                  |
+| shift-o      |            | outline tool          |                                  |

assets/levels/openquell.ldtk

@@ -6096,7 +6096,15 @@
 							"height": 32,
 							"defUid": 65,
 							"px": [224,224],
-							"fieldInstances": [{ "__identifier": "Entity_ref", "__type": "EntityRef", "__value": null, "__tile": null, "defUid": 68, "realEditorValues": [] }],
+							"fieldInstances": [{ "__identifier": "Entity_ref", "__type": "EntityRef", "__value": {
+								"entityIid": "7d975370-d7b0-11ee-9add-971995295000",
+								"layerIid": "50624190-d7b0-11ee-968e-3dbcbdc42f40",
+								"levelIid": "50621a80-d7b0-11ee-968e-a98c2d35fbdb",
+								"worldIid": "267ee1a0-d7b0-11ee-a97e-53f0a359eae1"
+							}, "__tile": null, "defUid": 68, "realEditorValues": [{
+								"id": "V_String",
+								"params": ["7d975370-d7b0-11ee-9add-971995295000"]
+							}] }],
 							"__worldX": 0,
 							"__worldY": 2976
 						},

assets/loader-levels.go

@@ -240,8 +240,8 @@ func InitTiles() TileRegistry {
 		"HiddenDoor11": NewTileHiddenDoor("block-greycolored", "damage"),
 		"HiddenDoor12": NewTileHiddenDoor("block-greycolored", "damage"),
 		"HiddenDoor13": NewTileHiddenDoor("block-greycolored", "damage"),
-		"Switch":       NewTileSwitch([]string{"switch-open.png", "switch-closed.png"}),
-		"Door":         NewTileDoor([]string{"door-open.png", "door-closed.png"}),
+		"Switch":       NewTileSwitch([]string{"switch1", "switch2"}),
+		"Door":         NewTileDoor([]string{"door1", "door2"}),
 	}
 }
 

components/pairs.go

@@ -23,11 +23,15 @@ type Door struct {
 	Id          string
 }
 
-func (door *Door) Open() *ebiten.Image {
+func (door *Door) Toggle() {
+	door.IsOpen = !door.IsOpen
+}
+
+func (door *Door) Sprite() *ebiten.Image {
+	if door.IsOpen {
 		return door.OpenSprite
 	}
 
-func (door *Door) Close() *ebiten.Image {
 	return door.CloseSprite
 }
 
@@ -39,3 +43,15 @@ type Switch struct {
 	CloseSprite *ebiten.Image
 	Ref         string // the IId of the door
 }
+
+func (switcher *Switch) Toggle() {
+	switcher.IsOpen = !switcher.IsOpen
+}
+
+func (switcher *Switch) Sprite() *ebiten.Image {
+	if switcher.IsOpen {
+		return switcher.OpenSprite
+	}
+
+	return switcher.CloseSprite
+}

game/levels.go

@@ -55,6 +55,8 @@ func NewLevel(game *Game, cellsize int, plan *ldtkgo.Level) *Level {
 	systemlist = append(systemlist, systems.NewDestroyableSystem(game.World, gridcontainer,
 		game.Cellsize))
 
+	systemlist = append(systemlist, systems.NewPairSystem(game.World, gridcontainer))
+
 	systemlist = append(systemlist, systems.NewHudSystem(game.World, plan))
 
 	mapslice, backupmap := LevelToSlice(game, plan, cellsize)
@@ -176,11 +178,15 @@ func LevelToSlice(game *Game, level *ldtkgo.Level, tilesize int) (Map, Map) {
 						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,
+							)
 						}
 					}
 
-					slog.Debug("LOAD TILE", "tile", entity.TileRect)
-
 					tileRect := entity.TileRect
 
 					tile.Sprite = tileset.SubImage(

grid/grid.go

@@ -8,8 +8,6 @@ import (
 	"openquell/config"
 	"openquell/observers"
 
-	"log/slog"
-
 	"github.com/mlange-42/arche/ecs"
 	"github.com/mlange-42/arche/generic"
 )
@@ -141,16 +139,16 @@ func NewGrid(world *ecs.World,
 			case tile.Switch:
 				entity := switchmapper.New()
 				pos, render, _, switcher = switchmapper.Get(entity)
-				switcher.OpenSprite = tile.Tiles[0]
 				switcher.CloseSprite = tile.Tiles[0]
+				switcher.OpenSprite = tile.Tiles[1]
 				switcher.Ref = tile.Ref
 				switches = append(switches, entity)
 
 			case tile.Door:
 				entity := doormapper.New()
 				pos, render, _, door = doormapper.Get(entity)
-				door.OpenSprite = tile.Tiles[0]
 				door.CloseSprite = tile.Tiles[0]
+				door.OpenSprite = tile.Tiles[1]
 				door.Id = tile.Id
 				doors = append(doors, entity)
 
@@ -176,17 +174,19 @@ func NewGrid(world *ecs.World,
 		pos.Update(point.X*tilesize, point.Y*tilesize, tilesize)
 	}
 
+	// check for switch->door references
 	for _, switchentity := range switches {
 		_, _, bond, switcher = switchmapper.Get(switchentity)
 
 		if switcher.Ref != "" {
+			// this switch has a reference
 			for _, doorentity := range doors {
 				_, _, _, door = doormapper.Get(doorentity)
 				if door.Id == switcher.Ref {
+					// the switch reference matches the door id, relate the two
 					bond.Ref = switcher.Ref
 					relID := ecs.ComponentID[components.Bond](world)
-					world.Relations().Set(doorentity, relID, switchentity)
-					slog.Debug("setup switch/door reference")
+					world.Relations().Set(switchentity, relID, doorentity)
 				}
 			}
 		}

systems/pair_system.go

@@ -0,0 +1,117 @@
+package systems
+
+import (
+	"openquell/components"
+	. "openquell/components"
+	. "openquell/config"
+	"openquell/grid"
+	"openquell/observers"
+
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/mlange-42/arche/ecs"
+	"github.com/mlange-42/arche/generic"
+)
+
+type PairSystem struct {
+	World          *ecs.World
+	DoorSelector   *generic.Filter4[Position, Renderable, Bond, Door]
+	SwitchSelector *generic.Filter4[Position, Renderable, Bond, Switch]
+	GridContainer  *grid.GridContainer
+	DoorMapper     generic.Map4[
+		components.Position,
+		components.Renderable,
+		components.Bond,
+		components.Door]
+}
+
+type ToggleDoor struct {
+	Entity ecs.Entity
+	Open   bool
+}
+
+func NewPairSystem(world *ecs.World, gridcontainer *grid.GridContainer) System {
+	doormapper := generic.NewMap4[
+		components.Position,
+		components.Renderable,
+		components.Bond,
+		components.Door](world)
+
+	system := &PairSystem{
+		DoorSelector:   generic.NewFilter4[Position, Renderable, Bond, Door](),
+		SwitchSelector: generic.NewFilter4[Position, Renderable, Bond, Switch](),
+		World:          world,
+		GridContainer:  gridcontainer,
+		DoorMapper:     doormapper,
+	}
+
+	return system
+}
+
+func (system *PairSystem) Update() error {
+	observer := observers.GetGameObserver(system.World)
+	posID := ecs.ComponentID[components.Position](system.World)
+	veloID := ecs.ComponentID[components.Velocity](system.World)
+
+	query := system.SwitchSelector.Query(system.World)
+	relID := ecs.ComponentID[Bond](system.World)
+
+	EntitiesToSwitch := []*ToggleDoor{}
+
+	for query.Next() {
+		swpos, _, _, switcher := query.Get()
+
+		for _, player := range observer.GetPlayers() {
+			if !system.World.Alive(player) {
+				continue
+			}
+
+			playerposition := (*Position)(system.World.Get(player, posID))
+			playervelocity := (*Velocity)(system.World.Get(player, veloID))
+
+			ok, newpos := swpos.Intersects(playerposition, playervelocity)
+			if ok {
+				// player moved on top of the switch
+				switcher.Toggle()
+				// open door
+				door := system.World.Relations().Get(query.Entity(), relID)
+				EntitiesToSwitch = append(EntitiesToSwitch,
+					&ToggleDoor{Entity: door, Open: true})
+
+				playervelocity.Change(Stop)
+				playerposition.Set(newpos)
+
+			}
+		}
+	}
+
+	for _, toggle := range EntitiesToSwitch {
+		_, _, _, door := system.DoorMapper.Get(toggle.Entity)
+		door.Toggle()
+	}
+
+	return nil
+}
+
+func (system *PairSystem) Draw(screen *ebiten.Image) {
+	op := &ebiten.DrawImageOptions{}
+	query := system.SwitchSelector.Query(system.World)
+
+	for query.Next() {
+		pos, _, _, switcher := query.Get()
+
+		op.GeoM.Reset()
+		op.GeoM.Translate(float64(pos.X), float64(pos.Y))
+		screen.DrawImage(switcher.Sprite(), op)
+	}
+
+	doorquery := system.DoorSelector.Query(system.World)
+
+	for doorquery.Next() {
+		pos, _, _, door := doorquery.Get()
+
+		op.GeoM.Reset()
+		op.GeoM.Translate(float64(pos.X), float64(pos.Y))
+		screen.DrawImage(door.Sprite(), op)
+	}
+
+}