feat(val-blog): add 2026-04-30 dream journey post

ai-agent-living/godot/scripts/apartment_v2.gd

@@ -0,0 +1,65 @@
+extends Node2D
+
+const GRID_SIZE = 64
+const ROOM_WIDTH = 10
+const ROOM_HEIGHT = 8
+const MAIN_CHANNEL_WIDTH = 2
+
+var grid_cells: Array = []
+var occupied_positions: Array = []
+
+func _ready():
+	initialize_grid()
+
+func initialize_grid():
+	grid_cells.resize(ROOM_WIDTH * ROOM_HEIGHT)
+	for y in range(ROOM_HEIGHT):
+		for x in range(ROOM_WIDTH):
+			var index = y * ROOM_WIDTH + x
+			grid_cells[index] = {
+				"position": Vector2(x * GRID_SIZE, y * GRID_SIZE),
+				"occupied": false,
+				"type": "empty"
+			}
+			# Reserve main channel (2 cells wide, can be horizontal or vertical, here we assume vertical left side)
+			if x == 0 and y < ROOM_HEIGHT - 2:  # Keep 2 cells at bottom free
+				grid_cells[index]["occupied"] = true
+				grid_cells[index]["type"] = "channel"
+
+func is_position_valid(pos: Vector2) -> bool:
+	var x = int(pos.x / GRID_SIZE)
+	var y = int(pos.y / GRID_SIZE)
+	if x < 0 or x >= ROOM_WIDTH or y < 0 or y >= ROOM_HEIGHT:
+		return false
+	var index = y * ROOM_WIDTH + x
+	return not grid_cells[index]["occupied"]
+
+func get_random_valid_position() -> Vector2:
+	var attempts = 0
+	while attempts < 50:
+		var x = randi() % (ROOM_WIDTH - 1)  # Avoid blocking channel
+		var y = randi() % ROOM_HEIGHT
+		var pos = Vector2(x * GRID_SIZE + GRID_SIZE / 2, y * GRID_SIZE + GRID_SIZE / 2)
+		if is_position_valid(pos):
+			return pos
+		attempts += 1
+	return Vector2.ZERO
+
+func reserve_position(pos: Vector2, obj_type: String = "object"):
+	var x = int(pos.x / GRID_SIZE)
+	var y = int(pos.y / GRID_SIZE)
+	if x >= 0 and x < ROOM_WIDTH and y >= 0 and y < ROOM_HEIGHT:
+		var index = y * ROOM_WIDTH + x
+		if not grid_cells[index]["occupied"]:
+			grid_cells[index]["occupied"] = true
+			grid_cells[index]["type"] = obj_type
+			occupied_positions.append(pos)
+
+func free_position(pos: Vector2):
+	var x = int(pos.x / GRID_SIZE)
+	var y = int(pos.y / GRID_SIZE)
+	if x >= 0 and x < ROOM_WIDTH and y >= 0 and y < ROOM_HEIGHT:
+		var index = y * ROOM_WIDTH + x
+		grid_cells[index]["occupied"] = false
+		grid_cells[index]["type"] = "empty"
+		occupied_positions.erase(pos)