feat: ant randomization

langtons-ant/ant.gd

@@ -3,8 +3,9 @@ extends Sprite2D
 var pos: Vector2i = Vector2i(0,0)
 var dir: TileSet.CellNeighbor = TileSet.CELL_NEIGHBOR_RIGHT_SIDE
 @onready var tiles: TileMapLayer = get_node("../TileMapLayer")
+@export var randomRules: bool = true
 
-var cur_dir: Dictionary = {
+var curDir: Dictionary = {
 	0: TileSet.CELL_NEIGHBOR_RIGHT_SIDE,
 	1: TileSet.CELL_NEIGHBOR_BOTTOM_RIGHT_SIDE,
 	2: TileSet.CELL_NEIGHBOR_BOTTOM_LEFT_SIDE,
@@ -13,7 +14,7 @@ var cur_dir: Dictionary = {
 	5: TileSet.CELL_NEIGHBOR_TOP_RIGHT_SIDE,
 }
 	
-var cur_int: Dictionary = {
+var curInt: Dictionary = {
 	TileSet.CELL_NEIGHBOR_RIGHT_SIDE: 0,
 	TileSet.CELL_NEIGHBOR_BOTTOM_RIGHT_SIDE: 1,
 	TileSet.CELL_NEIGHBOR_BOTTOM_LEFT_SIDE: 2,
@@ -22,21 +23,34 @@ var cur_int: Dictionary = {
 	TileSet.CELL_NEIGHBOR_TOP_RIGHT_SIDE: 5,
 }
 
-var antProgram: Dictionary = {
-		0: Vector2i(-2, 1),
-		1: Vector2i(0, 2),
-		2: Vector2i(0, 3),
-		3: Vector2i(-1, 4),
-		4: Vector2i(-2, 5),
-		5: Vector2i(-1, 0),
-}
+var antProgram: Array[Vector2i] = [
+		Vector2i(2, 1),
+		Vector2i(0, 2),
+		Vector2i(3, 3),
+		Vector2i(1, 4),
+		Vector2i(1, 5),
+		Vector2i(2, 0),
+]
+
+func randomTileset() -> void:
+	var rng = RandomNumberGenerator.new()
+	antProgram = []
+	var s: int = rng.randi_range(10, 99)
+	for i in range(0, s):
+		antProgram.append(Vector2i(rng.randi_range(1, 4), (i+1)%s))
+		
 
 func getNextStep(tile: int) -> Vector2i:
-	return antProgram.get(tile, Vector2i(0,0))
+	if tile > antProgram.size():
+		return Vector2i(0,0)
+	else:
+		return antProgram.get(tile)
 
 func _ready() -> void:
 	self.set_z_index(1)
-	self.set_frame(cur_int[dir])
+	self.set_frame(curInt[dir])
+	if randomRules:
+		randomTileset()
 	tiles.set_tile(pos, tiles.get_tile_colour(pos))
 	move(dir)
 
@@ -50,8 +64,9 @@ func update() -> void:
 	
 	var tile: int = tiles.get_tile_colour(pos)
 	var res = getNextStep(tile)
-	dir = cur_dir[(cur_int[dir] + tiles.numTiles + res.x) % tiles.numTiles]
-	self.set_frame(dir)
+	dir = curDir[(curInt[dir] + tiles.numTiles + res.x) % tiles.numTiles]
+	self.set_frame(curInt[dir])
+	
 	tiles.set_tile(pos, res.y % tiles.numTiles) 
 	
 func move(to: TileSet.CellNeighbor) -> void:

langtons-ant/camera.gd

@@ -1,6 +1,6 @@
 extends Camera2D
 
-@export var minZoom := 0.1
+@export var minZoom := 0.01
 @export var maxZoom := 2.0
 @export var zoomFactor := 0.1
 @export var zoomDuration := 0.2

langtons-ant/grid.gd

@@ -5,6 +5,7 @@ var paused: bool = false
 @export var stepSize: float = 20
 @export var ant: Sprite2D
 @export var tiles: TileMapLayer
+
 # Called when the node enters the scene tree for the first time.
 func _ready() -> void:
 	pass

langtons-ant/tile_map_layer.gd

@@ -4,13 +4,19 @@ var tiles: Dictionary = {}
 @onready var numTiles: int = get_tile_set().get_source(0).get_tiles_count()
 #@onready var texSize: Vector2 = get_tile_set().get_tile_texture(get_tile_set().get_tile_id(0))
 @onready var texSize: Vector2 = Vector2(32, 32) # TODO: get from tileSet
-
+@export var randomColors: bool = true
+var stateColMap: Dictionary = {
+}
+var rng: RandomNumberGenerator = RandomNumberGenerator.new()
 
 func get_tile_colour(pos: Vector2i) -> int:
-	return self.tiles.get_or_add(pos, 0)
+	return tiles.get_or_add(pos, 0)
 
 # TODO: state should be an enum probably
 func set_tile(pos: Vector2i, state: int) -> void:
-	set_cell(pos, 0, Vector2i(0, state))
-	self.tiles.erase(pos)
-	self.tiles.get_or_add(pos, state % self.numTiles)
+	self.set_cell(pos, 0, Vector2i(0, state%numTiles))
+	if randomColors:
+		var col: Color = stateColMap.get_or_add(state, Color(rng.randf(), rng.randf(), rng.randf(), 1))
+		self.get_cell_tile_data(pos).set_modulate(col)
+	tiles.erase(pos)
+	tiles.get_or_add(pos, state)