From fa6e5d9582101b7da6f6a0af5c0b87e5ba73b41f Mon Sep 17 00:00:00 2001
From: djairoh <ljxjah@mykolab.com>
Date: Wed, 12 Nov 2025 15:39:40 +0100
Subject: [PATCH] feat: reorganized logic + camera

---
 langtons-ant/TODO              |   5 +++
 langtons-ant/ant.gd            |  42 ++++++++++---------
 langtons-ant/assets/ant.png    | Bin 4826 -> 4013 bytes
 langtons-ant/assets/tile0.png  | Bin 305 -> 0 bytes
 langtons-ant/assets/tile1.png  | Bin 305 -> 0 bytes
 langtons-ant/assets/tiles.png  | Bin 869 -> 1404 bytes
 langtons-ant/camera.gd         |  41 ++++++++++++++++++
 langtons-ant/camera.gd.uid     |   1 +
 langtons-ant/grid.gd           |  15 ++++---
 langtons-ant/grid.tscn         |  24 ++++++-----
 langtons-ant/project.godot     |  23 +++++++++++
 langtons-ant/tile_map_layer.gd |  73 ++++-----------------------------
 12 files changed, 124 insertions(+), 100 deletions(-)
 create mode 100644 langtons-ant/TODO
 delete mode 100644 langtons-ant/assets/tile0.png
 delete mode 100644 langtons-ant/assets/tile1.png
 create mode 100644 langtons-ant/camera.gd
 create mode 100644 langtons-ant/camera.gd.uid

diff --git a/langtons-ant/TODO b/langtons-ant/TODO
new file mode 100644
index 0000000..3133743
--- /dev/null
+++ b/langtons-ant/TODO
@@ -0,0 +1,5 @@
+UI -> toggleButton so camera follows ant
+   -> reset camera button
+   -> pause button
+customizable tile->dir->color logic (im thinking we do a dict: {tileState, (newDir, newTileCol)})
+dynamically generate tile colours (using a big palette for indexing maybe?) this probably needs to be a shader.
diff --git a/langtons-ant/ant.gd b/langtons-ant/ant.gd
index 0a42e4c..d4fcb0c 100644
--- a/langtons-ant/ant.gd
+++ b/langtons-ant/ant.gd
@@ -17,31 +17,35 @@ var cur_int: Dictionary = {
 	TileSet.CELL_NEIGHBOR_RIGHT_SIDE: 0,
 	TileSet.CELL_NEIGHBOR_BOTTOM_RIGHT_SIDE: 1,
 	TileSet.CELL_NEIGHBOR_BOTTOM_LEFT_SIDE: 2,
-	TileSet.CELL_NEIGHBOR_TOP_LEFT_SIDE: 3,
-	TileSet.CELL_NEIGHBOR_LEFT_SIDE: 4,
+	TileSet.CELL_NEIGHBOR_LEFT_SIDE: 3,
+	TileSet.CELL_NEIGHBOR_TOP_LEFT_SIDE: 4,
 	TileSet.CELL_NEIGHBOR_TOP_RIGHT_SIDE: 5,
 }
 
 func _ready() -> void:
-	set_frame(1)
-	set_z_index(1)
-	tiles.set_tile(pos, (tiles.get_tile_colour(pos) + 1) % 2) # TODO: should probably use another dictionary
+	self.set_z_index(1)
+	self.set_frame(cur_int[dir])
+	tiles.set_tile(pos, (tiles.get_tile_colour(pos))) # TODO: should probably use another dictionary
 	move()
 
 func update() -> void:
 	var tile: int = tiles.get_tile_colour(pos)
-	print("tile %s" % tile)
 	var newFrame: int = cur_int[dir]
 	
+	# TODO: turn into dict{tileCol, (nextDir, paintCol)} customizable
 	match tile:
 		0:
-			newFrame = (newFrame + 1) % 6
+			newFrame = (newFrame + 5) % tiles.numTiles
 		1:
-			newFrame = (newFrame + 1) % 6
+			newFrame = (newFrame + 4) % tiles.numTiles
 		2:
-			newFrame = (newFrame + 1) % 6
+			newFrame = (newFrame + 0) % tiles.numTiles
 		3:
-			newFrame = (newFrame + 5) % 6
+			newFrame = (newFrame + 0) % tiles.numTiles
+		4:
+			newFrame = (newFrame + 5) % tiles.numTiles
+		5:
+			newFrame = (newFrame + 4) % tiles.numTiles 
 		_:
 			pass
 	dir = next_dir[newFrame]
@@ -49,24 +53,24 @@ func update() -> void:
 	move()
 	pos = tiles.get_neighbor_cell(pos, dir)
 	tile = tiles.get_tile_colour(pos)
-	tiles.set_tile(pos, (tile + 1) % 4) # TODO: should probably use another dictionary
-	set_frame(newFrame)
+	tiles.set_tile(pos, (tile + 1) % tiles.numTiles) # TODO: should probably use another dictionary
+	self.set_frame(newFrame)
 	
 func move() -> void:
 	var delta: Vector2
 	match dir:
 		TileSet.CELL_NEIGHBOR_RIGHT_SIDE:
-			delta = Vector2(32, 0)
+			delta = Vector2(tiles.texSize.x, 0)
 		TileSet.CELL_NEIGHBOR_BOTTOM_RIGHT_SIDE:
-			delta = Vector2(16, 24)
+			delta = Vector2(tiles.texSize.x/2, tiles.texSize.y/4*3)
 		TileSet.CELL_NEIGHBOR_BOTTOM_LEFT_SIDE:
-			delta = Vector2(-16, 24)
+			delta = Vector2(-tiles.texSize.x/2, tiles.texSize.y/4*3)
 		TileSet.CELL_NEIGHBOR_LEFT_SIDE:
-			delta = Vector2(-32, 0)
+			delta = Vector2(-tiles.texSize.x, 0)
 		TileSet.CELL_NEIGHBOR_TOP_LEFT_SIDE:
-			delta = Vector2(-16, -24)
+			delta = Vector2(-tiles.texSize.x/2, -tiles.texSize.y/4*3)
 		TileSet.CELL_NEIGHBOR_TOP_RIGHT_SIDE:
-			delta = Vector2(16, -24)
+			delta = Vector2(tiles.texSize.x/2, -tiles.texSize.y/4*3)
 		_:
 			delta = Vector2(0,0)
-	translate(delta)
+	self.translate(delta)
diff --git a/langtons-ant/assets/ant.png b/langtons-ant/assets/ant.png
index e4d3132f93f525a6bdbba9f472099b05f0d88d0d..748baf030d45f08a2e8ff22b3a80941a49b7d2b5 100644
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diff --git a/langtons-ant/camera.gd b/langtons-ant/camera.gd
new file mode 100644
index 0000000..34495a5
--- /dev/null
+++ b/langtons-ant/camera.gd
@@ -0,0 +1,41 @@
+extends Camera2D
+
+@export var minZoom := 0.1
+@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)
diff --git a/langtons-ant/camera.gd.uid b/langtons-ant/camera.gd.uid
new file mode 100644
index 0000000..eccb470
--- /dev/null
+++ b/langtons-ant/camera.gd.uid
@@ -0,0 +1 @@
+uid://bqjbnbfd7jlob
diff --git a/langtons-ant/grid.gd b/langtons-ant/grid.gd
index f154bbd..9d445ae 100644
--- a/langtons-ant/grid.gd
+++ b/langtons-ant/grid.gd
@@ -1,19 +1,24 @@
 extends Node2D
 
-var t: float = 0
-@export var speed: float = 58
+@export var stepSize: float = 2
 @export var ant: Sprite2D
 @export var tiles: TileMapLayer
+var t: float = -1
+var paused: bool = false
 
 # 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 > 60-speed):
+	if (t > stepSize/100):
 		t = 0
 		ant.update()
-		#tiles.render_next()
diff --git a/langtons-ant/grid.tscn b/langtons-ant/grid.tscn
index 9a4d25b..a6ebae1 100644
--- a/langtons-ant/grid.tscn
+++ b/langtons-ant/grid.tscn
@@ -1,10 +1,11 @@
-[gd_scene load_steps=8 format=3 uid="uid://b6xi32r3co6md"]
+[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://bnfy5vx72ux33" path="res://assets/ant.png" id="3_sle3t"]
-[ext_resource type="Texture2D" uid="uid://d0v1qlkltasln" path="res://assets/tiles.png" id="4_fqc2p"]
+[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")
@@ -17,6 +18,8 @@ texture_region_size = Vector2i(32, 32)
 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
@@ -25,8 +28,8 @@ sources/0 = SubResource("TileSetAtlasSource_g2qvd")
 
 [node name="Grid" type="Node2D" node_paths=PackedStringArray("ant", "tiles")]
 script = ExtResource("1_bghhw")
-speed = 60.0
-ant = NodePath("ant")
+stepSize = 1.0
+ant = NodePath("Ant")
 tiles = NodePath("TileMapLayer")
 
 [node name="TileMapLayer" type="TileMapLayer" parent="."]
@@ -34,13 +37,14 @@ tile_set = SubResource("TileSet_05i0m")
 collision_enabled = false
 script = ExtResource("5_fqc2p")
 
-[node name="Camera2D" type="Camera2D" parent="TileMapLayer"]
-position = Vector2(0, -8)
-scale = Vector2(0.8, 0.8)
-
-[node name="ant" type="Sprite2D" parent="."]
+[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")
diff --git a/langtons-ant/project.godot b/langtons-ant/project.godot
index 4261f85..354c558 100644
--- a/langtons-ant/project.godot
+++ b/langtons-ant/project.godot
@@ -18,3 +18,26 @@ 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)
+]
+}
diff --git a/langtons-ant/tile_map_layer.gd b/langtons-ant/tile_map_layer.gd
index 72a6313..17393d4 100644
--- a/langtons-ant/tile_map_layer.gd
+++ b/langtons-ant/tile_map_layer.gd
@@ -1,75 +1,16 @@
 extends TileMapLayer
 
 var tiles: Dictionary = {}
-var idx: int = 0
-var dirs: Array[int] = [
-	TileSet.CELL_NEIGHBOR_TOP_RIGHT_SIDE,
-	TileSet.CELL_NEIGHBOR_RIGHT_SIDE,
-	TileSet.CELL_NEIGHBOR_BOTTOM_RIGHT_SIDE,
-	TileSet.CELL_NEIGHBOR_BOTTOM_LEFT_SIDE,
-	TileSet.CELL_NEIGHBOR_LEFT_SIDE,
-	TileSet.CELL_NEIGHBOR_TOP_LEFT_SIDE,
-]
+@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
 
-func render_next() -> void:
-	print("rendering {i}")
-	set_cell(get_neighbor_cell(Vector2i(0, 0), dirs[idx]), 0, Vector2i(0, 1))
-	idx = (idx + 1) % 6
 
 func get_tile_colour(pos: Vector2i) -> int:
-	return tiles.get_or_add(pos, 0)
+	return self.tiles.get_or_add(pos, 0)
 
-# TODO: state sh1ould be an enum probably
+# TODO: state should be an enum probably
 func set_tile(pos: Vector2i, state: int) -> void:
-	print("setting cell (%s) at %d %d\n" % [state, pos.x, pos.y])
 	set_cell(pos, 0, Vector2i(0, state))
-	tiles.erase(pos)
-	tiles.get_or_add(pos, state)
-		
-#var direction = 0
-#var antPos = Vector2i(0,0)
-#var grid = {}
-#var tileSize = 16
-#
-## Called when the node enters the scene tree for the first time.
-#func _ready() -> void:
-	#set_process(true)
-	#grid[antPos] = 0
-	#updateTile(antPos, 0)
-#
-#func updateTile(pos: Vector2i, col: int):
-	#var tileCol = Color.WHITE if col == 0 else Color.BLACK
-	#var tileRect = ColorRect.new()
-	#tileRect.color = tileCol
-	#tileRect.size = Vector2(tileSize, tileSize)
-	#tileRect.position = Vector2(pos.x * tileSize, pos.y * tileSize)
-	#add_child(tileRect)
-	#
-#
-## Called every frame. 'delta' is the elapsed time since the previous frame.
-#func _process(delta: float) -> void:
-	#moveAnt()	
-#
-#func moveAnt():
-	#var curCol = grid.get(antPos, 0)
-	#
-	#if curCol == 0:
-		#direction = (direction + 1) % 4
-	#else:
-		#direction = (direction + 3) % 4
-		#
-	#grid[antPos] = 1 - curCol
-	#updateTile(antPos, grid[antPos])
-	#
-	#match direction:
-		#0:
-			#antPos.y -= 1 
-		#1:
-			#antPos.x += 1
-		#2:
-			#antPos.y += 1
-		#3:
-			#antPos.x -= 1
-			#
-	#if not grid.has(antPos):
-		#grid[antPos] = 0
+	self.tiles.erase(pos)
+	self.tiles.get_or_add(pos, state % self.numTiles)