1 files changed, 76 insertions, 0 deletions
diff --git a/Game.gd b/Game.gd
new file mode 100644
index 0000000..7a5d0a5
--- /dev/null
+++ b/Game.gd
@@ -0,0 +1,76 @@
+extends Node
+
+
+signal mode_changed
+signal path_grid_changed
+
+
+enum Mode {
+	DEFAULT,
+	BUILD,
+}
+
+var mode: Mode = Mode.DEFAULT :
+	set(value):
+		mode = value
+		mode_changed.emit()
+
+
+var selected_tower: Tower
+var selected_unit: Mob
+
+
+var path_grid: AStarGrid2D
+var map: TileMapLayer
+
+func initialize_stage(tilemap: TileMapLayer):
+	map = tilemap
+	
+	path_grid = AStarGrid2D.new()
+	path_grid.region = map.get_used_rect()
+	path_grid.cell_size = map.tile_set.tile_size
+	path_grid.diagonal_mode = AStarGrid2D.DIAGONAL_MODE_ONLY_IF_NO_OBSTACLES
+	path_grid.update()
+	
+	for tower in get_tree().current_scene.get_node("Towers").get_children():
+		path_grid.set_point_solid(
+			map.local_to_map(
+				tower.global_position
+			)
+		)
+
+
+func place_tower(tower: Tower, position: Vector2):
+	var grid_position = map.local_to_map(position)
+	path_grid.set_point_solid(grid_position, true)
+	
+	tower.global_position = position
+	get_tree().current_scene.get_node("Towers").add_child(tower)
+	
+	path_grid_changed.emit()
+
+func remove_tower(tower: Tower):
+	var grid_position = map.local_to_map(tower.global_position)
+	path_grid.set_point_solid(grid_position, false)
+	tower.queue_free()
+	
+	path_grid_changed.emit()
+
+func select_tower(tower: Tower):
+	if selected_tower != tower:
+		selected_tower = tower
+		tower.select()
+
+func deselect_tower():
+	if selected_tower:
+		get_tree().current_scene.get_node("%Tower").text = ""
+
+
+func spawn_mob(mob: Mob, spawn: Spawn):
+	mob.global_position = spawn.global_position
+	mob.target = spawn.next_node.global_position
+	mob.hp = randi_range(50, 200)
+	mob.speed = randi_range(50, 150)
+	mob.get_node("Sprite2D").modulate = Color(randf_range(0, 1), randf_range(0, 1), randf_range(0, 1))
+	
+	return mob