229 lines
7.1 KiB
GDScript
229 lines
7.1 KiB
GDScript
extends Node3D
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class_name AStarGraph3D
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@export var grid_size := Vector2i(15, 7)
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@export var point_gap := 2.0
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var non_build_locations = []
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var astar := AStar3D.new()
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#TODO generalize this better
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@export var start : Node3D
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@export var end : Node3D
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@export var spawner : EnemySpawner
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@export var visualized_path : VisualizedPath
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@export var tower_path : Node
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var tower_base_scene = load("res://Scenes/tower_base.tscn")
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var tower_frame_scene = load("res://Scenes/tower_frame.tscn")
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var tower_bases = []
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var tower_base_ids = {}
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var tower_frames = []
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var wall_id = 0
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func toggle_point(point_id):
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networked_toggle_point.rpc(point_id)
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func point_is_build_location(point_id):
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return !non_build_locations.has(point_id)
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func test_path_if_point_toggled(point_id) -> bool:
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if astar.is_point_disabled(point_id):
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astar.set_point_disabled(point_id, false)
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else:
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astar.set_point_disabled(point_id, true)
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var result = find_path()
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if astar.is_point_disabled(point_id):
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astar.set_point_disabled(point_id, false)
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else:
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astar.set_point_disabled(point_id, true)
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return result
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@rpc("reliable", "any_peer", "call_local")
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func networked_toggle_point(point_id):
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if astar.is_point_disabled(point_id):
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astar.set_point_disabled(point_id, false)
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else:
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astar.set_point_disabled(point_id, true)
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find_path()
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disable_path_tower_frames()
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if is_multiplayer_authority():
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networked_spawn_wall.rpc(astar.get_point_position(point_id), wall_id)
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wall_id += 1
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func get_north_point(point_id) -> int:
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var x = point_id / grid_size.y
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var y = point_id % grid_size.y
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if x - 1 >= 0: #if the north point id could possibly exist as a neighbor
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return (x - 1) * grid_size.y + y
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return -1
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func get_south_point(point_id) -> int:
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var x = point_id / grid_size.y
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var y = point_id % grid_size.y
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if x + 1 <= grid_size.x - 1: #if the south point id could possibly exist as a neighbor
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return (x + 1) * grid_size.y + y
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return -1
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func get_west_point(point_id) -> int:
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var x = point_id / grid_size.y
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var y = point_id % grid_size.y
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if y + 1 <= grid_size.y - 1: #if the east point id could possibly exist as a neighbor
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return x * grid_size.y + y + 1
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return -1
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func get_east_point(point_id) -> int:
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var x = point_id / grid_size.y
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var y = point_id % grid_size.y
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if y - 1 >= 0: #if the west point id could possibly exist as a neighbor
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return x * grid_size.y + y - 1
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return -1
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func count_valid_neighbours(point_id) -> int:
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if !point_id:
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return 0
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var valid_neighbours = 0
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var north_point = get_north_point(point_id)
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var south_point = get_south_point(point_id)
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var east_point = get_east_point(point_id)
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var west_point = get_west_point(point_id)
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if north_point and !astar.is_point_disabled(north_point):
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valid_neighbours += 1
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else: #add the spawn point which is always valid
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valid_neighbours += 1
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if south_point and !astar.is_point_disabled(south_point):
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valid_neighbours += 1
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else: #add the goal point which is always valid
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valid_neighbours += 1
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if east_point and !astar.is_point_disabled(east_point):
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valid_neighbours += 1
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if west_point and !astar.is_point_disabled(west_point):
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valid_neighbours += 1
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return valid_neighbours
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func disable_all_tower_frames():
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for frame in tower_frames:
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frame.set_visible(false)
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func enable_non_path_tower_frames():
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for frame in tower_frames:
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frame.set_visible(true)
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disable_path_tower_frames()
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func disable_path_tower_frames():
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for id in astar.get_id_path(astar.get_point_count() - 2, astar.get_point_count() - 1):
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if id < (grid_size.x * grid_size.y) and !test_path_if_point_toggled(id):
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tower_frames[id].set_visible(false)
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@rpc("reliable", "call_local")
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func networked_spawn_wall(pos : Vector3, name_id : int):
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var base = tower_base_scene.instantiate() as TowerBase
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base.position = pos
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base.name = "Wall" + str(name_id)
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var point_id = astar.get_closest_point(pos, true)
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tower_base_ids[point_id] = base
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tower_bases.append(base)
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tower_path.add_child(base)
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var north_point = get_north_point(point_id)
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var south_point = get_south_point(point_id)
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var east_point = get_east_point(point_id)
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var west_point = get_west_point(point_id)
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if north_point >= 0 and astar.is_point_disabled(north_point):
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base.set_north_wall(true)
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tower_base_ids[north_point].set_south_wall(true)
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if south_point >= 0 and astar.is_point_disabled(south_point):
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base.set_south_wall(true)
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tower_base_ids[south_point].set_north_wall(true)
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if east_point >= 0 and astar.is_point_disabled(east_point):
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base.set_east_wall(true)
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tower_base_ids[east_point].set_west_wall(true)
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if west_point >= 0 and astar.is_point_disabled(west_point):
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base.set_west_wall(true)
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tower_base_ids[west_point].set_east_wall(true)
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func build_random_maze(block_limit):
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var untested_point_ids = []
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for index in (grid_size.x * grid_size.y):
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untested_point_ids.append(index)
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if block_limit <= 0 or block_limit > untested_point_ids.size():
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block_limit = untested_point_ids.size()
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for index in block_limit:
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var random_point = untested_point_ids.pick_random()
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untested_point_ids.erase(random_point)
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if test_path_if_point_toggled(random_point):
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networked_toggle_point.rpc(random_point)
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func place_random_towers(tower_limit):
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var untowered_bases = tower_bases.duplicate()
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if tower_limit <= 0 or tower_limit > untowered_bases.size():
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tower_limit = untowered_bases.size()
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for index in tower_limit:
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var random_base = untowered_bases.pick_random() as TowerBase
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untowered_bases.erase(random_base)
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random_base.add_card(Data.cards.pick_random())
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func find_path() -> bool:
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var path = astar.get_point_path(astar.get_point_count() - 2, astar.get_point_count() - 1)
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if !path.is_empty():
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var curve = Curve3D.new()
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for point in path:
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curve.add_point(point)
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spawner.path.curve = curve
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spawner.path.spawn_visualizer_points()
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return true
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return false
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func make_grid():
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for x in grid_size.x:
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for y in grid_size.y:
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var point_position = Vector3((x - floori(grid_size.x / 2)) * point_gap, 0.5, (y - floori(grid_size.y / 2)) * point_gap)
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astar.add_point(int(x * grid_size.y + y), point_position)
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var frame = tower_frame_scene.instantiate()
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frame.position = point_position
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tower_frames.append(frame)
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add_child(frame)
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for x in grid_size.x:
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for y in grid_size.y:
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var point_id = grid_size.y * x + y
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if x > 0:
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var north_point_id = grid_size.y * (x - 1) + y
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astar.connect_points(point_id, north_point_id, false)
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if x < grid_size.x - 1:
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var south_point_id = grid_size.y * (x + 1) + y
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astar.connect_points(point_id, south_point_id, false)
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if y > 0:
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var east_point_id = grid_size.y * x + (y - 1)
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astar.connect_points(point_id, east_point_id, false)
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if y < grid_size.y - 1:
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var west_point_id = grid_size.y * x + (y + 1)
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astar.connect_points(point_id, west_point_id, false)
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non_build_locations.append(astar.get_point_count())
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astar.add_point(astar.get_point_count(), start.global_position)
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for x in grid_size.y:
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astar.connect_points(int(astar.get_point_count() - 1), x)
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non_build_locations.append(astar.get_point_count())
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astar.add_point(astar.get_point_count(), end.global_position)
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for x in grid_size.y:
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astar.connect_points(astar.get_point_count() - 1, int(grid_size.y * (grid_size.x - 1) + x))
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