Separate cursor and tower placement logic

1 files changed, 30 insertions, 0 deletions

diff --git a/scripts/tower_manager.gd b/scripts/tower_manager.gd
new file mode 100644
index 0000000..250b66b
--- /dev/null
+++ b/scripts/tower_manager.gd
@@ -0,0 +1,30 @@
+extends Node
+
+@onready var _tiles : TileMapLayer = get_node("../Map/TileMapLayer")
+var _towers : Dictionary
+
+func _ready():
+	_towers = {}
+
+func place_tower(tower : Dictionary, tile_position : Vector2i):
+	var tower_cost = tower["cost"]
+	if is_valid_placement_tile(tile_position) && GameData.get_life() >= tower_cost:
+		var tmp = tower["scene"].instantiate()
+		var path = get_tree().get_root().get_node("Main/Defenders")
+		path.add_child(tmp)
+		tmp.global_position = tile_position
+		occupy_tile(tile_position)
+		GameData.subtract_life(tower_cost)
+
+func is_valid_placement_tile(tile_position : Vector2i):
+	var tile_coords = _tiles.get_cell_atlas_coords(tile_position)
+	return (tile_coords == (Vector2i(-1, -1))) && (!is_tile_occupied(tile_position))
+	
+func is_tile_occupied(tile_position : Vector2i):
+	return _towers.has(tile_position)
+
+func occupy_tile(tile_position):
+	_towers[tile_position] = true
+
+func free_tile(tile_position):
+	_towers.erase(tile_position)