feat: ant randomization

(wip) advanced langtons ant

.gitignore

@@ -35,6 +35,7 @@
 # ---> Godot
 # Godot 4+ specific ignores
 .godot/
+addons/
 
 # Godot-specific ignores
 .import/

langtons-ant/.editorconfig

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+root = true
+
+[*]
+charset = utf-8

langtons-ant/.gitattributes

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+# Normalize EOL for all files that Git considers text files.
+* text=auto eol=lf

langtons-ant/.gitignore

@@ -0,0 +1,4 @@
+# Godot 4+ specific ignores
+.godot/
+project.godot
+*.import

langtons-ant/TODO

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+UI -> toggleButton so camera follows ant
+   -> reset camera button
+   -> pause button
+dynamically generate tile colours (using a big palette for indexing maybe?) this probably needs to be a shader.

langtons-ant/ant.gd

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+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 curDir: Dictionary = {
+	0: TileSet.CELL_NEIGHBOR_RIGHT_SIDE,
+	1: TileSet.CELL_NEIGHBOR_BOTTOM_RIGHT_SIDE,
+	2: TileSet.CELL_NEIGHBOR_BOTTOM_LEFT_SIDE,
+	3: TileSet.CELL_NEIGHBOR_LEFT_SIDE,
+	4: TileSet.CELL_NEIGHBOR_TOP_LEFT_SIDE,
+	5: TileSet.CELL_NEIGHBOR_TOP_RIGHT_SIDE,
+}
+	
+var curInt: Dictionary = {
+	TileSet.CELL_NEIGHBOR_RIGHT_SIDE: 0,
+	TileSet.CELL_NEIGHBOR_BOTTOM_RIGHT_SIDE: 1,
+	TileSet.CELL_NEIGHBOR_BOTTOM_LEFT_SIDE: 2,
+	TileSet.CELL_NEIGHBOR_LEFT_SIDE: 3,
+	TileSet.CELL_NEIGHBOR_TOP_LEFT_SIDE: 4,
+	TileSet.CELL_NEIGHBOR_TOP_RIGHT_SIDE: 5,
+}
+
+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:
+	if tile > antProgram.size():
+		return Vector2i(0,0)
+	else:
+		return antProgram.get(tile)
+
+func _ready() -> void:
+	self.set_z_index(1)
+	self.set_frame(curInt[dir])
+	if randomRules:
+		randomTileset()
+	tiles.set_tile(pos, tiles.get_tile_colour(pos))
+	move(dir)
+
+# update loop:
+# move in dir
+# get tile col, change dir based on col
+# paint tile col
+func update() -> void:
+	move(dir)
+	pos = tiles.get_neighbor_cell(pos, dir)
+	
+	var tile: int = tiles.get_tile_colour(pos)
+	var res = getNextStep(tile)
+	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:
+	var delta: Vector2
+	match to:
+		TileSet.CELL_NEIGHBOR_RIGHT_SIDE:
+			delta = Vector2(tiles.texSize.x, 0)
+		TileSet.CELL_NEIGHBOR_BOTTOM_RIGHT_SIDE:
+			delta = Vector2(tiles.texSize.x/2, tiles.texSize.y/4*3)
+		TileSet.CELL_NEIGHBOR_BOTTOM_LEFT_SIDE:
+			delta = Vector2(-tiles.texSize.x/2, tiles.texSize.y/4*3)
+		TileSet.CELL_NEIGHBOR_LEFT_SIDE:
+			delta = Vector2(-tiles.texSize.x, 0)
+		TileSet.CELL_NEIGHBOR_TOP_LEFT_SIDE:
+			delta = Vector2(-tiles.texSize.x/2, -tiles.texSize.y/4*3)
+		TileSet.CELL_NEIGHBOR_TOP_RIGHT_SIDE:
+			delta = Vector2(tiles.texSize.x/2, -tiles.texSize.y/4*3)
+		_:
+			delta = Vector2(0,0)
+	self.translate(delta)

langtons-ant/ant.gd.uid

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+uid://b6ll30b7xtwal

langtons-ant/camera.gd

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+extends Camera2D
+
+@export var minZoom := 0.01
+@export var maxZoom := 2.0
+@export var zoomFactor := 0.1
+@export var zoomDuration := 0.2
+var zoomLevel: float = 1
+var dragging: bool = false
+
+func _ready():
+	pass
+
+func _input(event):
+	if event.is_action_pressed("zoomIn"):
+		setZoomLevel(zoomLevel + zoomFactor)
+	elif event.is_action_pressed("zoomOut"):
+		setZoomLevel(zoomLevel - zoomFactor)
+	elif event.is_action_pressed("resetCamera"):
+		reset()
+
+func _unhandled_input(event):
+	if event is InputEventMouseButton:
+		if event.get_button_index() == 1:
+			dragging = event.is_pressed()
+	elif event is InputEventMouseMotion:
+		if dragging:
+			self.global_position -= event.get_relative() * 1/zoomLevel
+	
+
+func setZoomLevel(level: float, mouse_world_position = self.get_global_mouse_position()):
+	var old_zoomLevel = zoomLevel
+	zoomLevel = clampf(level, minZoom, maxZoom)
+	
+	var direction = (mouse_world_position - global_position)
+	var new_position = self.global_position + direction - ((direction) / (zoomLevel/old_zoomLevel))
+	
+	zoom = Vector2(zoomLevel, zoomLevel)
+	self.global_position = new_position
+
+func reset():
+	self.global_position = Vector2(0, 0)

langtons-ant/camera.gd.uid

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+uid://bqjbnbfd7jlob

langtons-ant/grid.gd

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+extends Node2D
+
+var t: float = -1
+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
+
+func _input(event):
+	if event.is_action_pressed("togglePause"):
+		paused = !paused
+		
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	if paused: return
+	
+	t += delta
+	if (t > stepSize/1000):
+		t = 0
+		ant.update()

langtons-ant/grid.gd.uid

@@ -0,0 +1 @@
+uid://by3d3t5ymxl3m

langtons-ant/grid.tscn

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+[gd_scene load_steps=9 format=3 uid="uid://b6xi32r3co6md"]
+
+[ext_resource type="Script" uid="uid://by3d3t5ymxl3m" path="res://grid.gd" id="1_bghhw"]
+[ext_resource type="Script" uid="uid://b6ll30b7xtwal" path="res://ant.gd" id="1_ebq2e"]
+[ext_resource type="Texture2D" uid="uid://ykvioy4g357o" path="res://assets/ant.png" id="3_sle3t"]
+[ext_resource type="Texture2D" uid="uid://b8dilj6w2vq2l" path="res://assets/tiles.png" id="4_fqc2p"]
+[ext_resource type="Script" uid="uid://cqxfmo3hixad1" path="res://tile_map_layer.gd" id="5_fqc2p"]
+[ext_resource type="Script" uid="uid://bqjbnbfd7jlob" path="res://camera.gd" id="6_g2qvd"]
+
+[sub_resource type="TileSetAtlasSource" id="TileSetAtlasSource_g2qvd"]
+texture = ExtResource("4_fqc2p")
+texture_region_size = Vector2i(32, 32)
+0:0/0 = 0
+1:0/0 = 0
+0:1/0 = 0
+1:1/0 = 0
+0:2/0 = 0
+1:2/0 = 0
+0:3/0 = 0
+1:3/0 = 0
+0:4/0 = 0
+0:5/0 = 0
+
+[sub_resource type="TileSet" id="TileSet_05i0m"]
+tile_shape = 3
+tile_size = Vector2i(32, 32)
+sources/0 = SubResource("TileSetAtlasSource_g2qvd")
+
+[node name="Grid" type="Node2D" node_paths=PackedStringArray("ant", "tiles")]
+script = ExtResource("1_bghhw")
+stepSize = 1.0
+ant = NodePath("Ant")
+tiles = NodePath("TileMapLayer")
+
+[node name="TileMapLayer" type="TileMapLayer" parent="."]
+tile_set = SubResource("TileSet_05i0m")
+collision_enabled = false
+script = ExtResource("5_fqc2p")
+
+[node name="Ant" type="Sprite2D" parent="."]
+position = Vector2(-15.999998, 14.999998)
+scale = Vector2(0.8, 0.8)
+texture = ExtResource("3_sle3t")
+vframes = 6
+script = ExtResource("1_ebq2e")
+
+[node name="Camera" type="Camera2D" parent="."]
+position = Vector2(-3.8146973e-06, -8)
+scale = Vector2(0.79999983, 0.79999983)
+script = ExtResource("6_g2qvd")

langtons-ant/icon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="128" height="128"><rect width="124" height="124" x="2" y="2" fill="#363d52" stroke="#212532" stroke-width="4" rx="14"/><g fill="#fff" transform="translate(12.322 12.322)scale(.101)"><path d="M105 673v33q407 354 814 0v-33z"/><path fill="#478cbf" d="m105 673 152 14q12 1 15 14l4 67 132 10 8-61q2-11 15-15h162q13 4 15 15l8 61 132-10 4-67q3-13 15-14l152-14V427q30-39 56-81-35-59-83-108-43 20-82 47-40-37-88-64 7-51 8-102-59-28-123-42-26 43-46 89-49-7-98 0-20-46-46-89-64 14-123 42 1 51 8 102-48 27-88 64-39-27-82-47-48 49-83 108 26 42 56 81zm0 33v39c0 276 813 276 814 0v-39l-134 12-5 69q-2 10-14 13l-162 11q-12 0-16-11l-10-65H446l-10 65q-4 11-16 11l-162-11q-12-3-14-13l-5-69z"/><path d="M483 600c0 34 58 34 58 0v-86c0-34-58-34-58 0z"/><circle cx="725" cy="526" r="90"/><circle cx="299" cy="526" r="90"/></g><g fill="#414042" transform="translate(12.322 12.322)scale(.101)"><circle cx="307" cy="532" r="60"/><circle cx="717" cy="532" r="60"/></g></svg>

langtons-ant/project.godot

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+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=5
+
+[application]
+
+config/name="New Game Project"
+run/main_scene="res://grid.tscn"
+config/features=PackedStringArray("4.5", "Forward Plus")
+config/icon="res://icon.svg"
+
+[editor_plugins]
+
+enabled=PackedStringArray("res://addons/godot-vim/plugin.cfg")
+
+[input]
+
+zoomIn={
+"deadzone": 0.2,
+"events": [Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"button_mask":0,"position":Vector2(0, 0),"global_position":Vector2(0, 0),"factor":1.0,"button_index":4,"canceled":false,"pressed":false,"double_click":false,"script":null)
+]
+}
+zoomOut={
+"deadzone": 0.2,
+"events": [Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"button_mask":0,"position":Vector2(0, 0),"global_position":Vector2(0, 0),"factor":1.0,"button_index":5,"canceled":false,"pressed":false,"double_click":false,"script":null)
+]
+}
+togglePause={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":32,"key_label":0,"unicode":32,"location":0,"echo":false,"script":null)
+]
+}
+resetCamera={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":82,"physical_keycode":0,"key_label":0,"unicode":114,"location":0,"echo":false,"script":null)
+]
+}

langtons-ant/tile_map_layer.gd

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+extends TileMapLayer
+
+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 tiles.get_or_add(pos, 0)
+
+# TODO: state should be an enum probably
+func set_tile(pos: Vector2i, state: int) -> void:
+	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)

langtons-ant/tile_map_layer.gd.uid

@@ -0,0 +1 @@
+uid://cqxfmo3hixad1