Experiment with path generation

1 files changed, 41 insertions, 7 deletions

diff --git a/scripts/path_generator.gd b/scripts/path_generator.gd
index fae2c76..e87a8f4 100644
--- a/scripts/path_generator.gd
+++ b/scripts/path_generator.gd
@@ -1,11 +1,45 @@
-extends Node
+extends Object
 
+class_name PathGenerator
 
-# Called when the node enters the scene tree for the first time.
-func _ready() -> void:
-	pass # Replace with function body.
+var _grid_width : int
+var _grid_height : int
 
+var _path : Array[Vector2i]
 
-# Called every frame. 'delta' is the elapsed time since the previous frame.
-func _process(delta: float) -> void:
-	pass
+func _init(width:int, height:int):
+	_grid_width = width
+	_grid_height = height
+
+func generate_path():
+	_path.clear()
+
+	var x : int = 0
+	var y : int = randi_range(1, _grid_height-2)
+
+	while x < _grid_width:
+		if not _path.has(Vector2i(x,y)):
+			_path.append(Vector2i(x, y))
+
+		var choice : int = randi_range(0,2)
+
+		# every even tile goes right to leave room for towers
+		if choice == 0 || x % 2 == 0 || x == _grid_width - 1:
+			x += 1
+		elif choice == 1 && y < _grid_height - 2 && !_path.has(Vector2i(x, y + 1)):
+			y += 1
+		elif choice == 2 && y > 1 && !_path.has(Vector2i(x, y - 1)):
+			y -= 1
+	return _path
+
+func get_tile_score(tile : Vector2i) -> int:
+	var score : int = 0
+	var x : int = tile.x
+	var y : int = tile.y
+	
+	score += 1 if _path.has(Vector2i(x, y - 1)) else 0
+	score += 2 if _path.has(Vector2i(x + 1, y)) else 0
+	score += 4 if _path.has(Vector2i(x, y + 1)) else 0
+	score += 8 if _path.has(Vector2i(x - 1, y)) else 0
+
+	return score