69 lines
1.8 KiB
GDScript3
69 lines
1.8 KiB
GDScript3
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extends Node2D
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class_name PathfindObstacle
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@export var radius: float = 32
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@export var added_weight: float = 0.0
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@export var solid: bool = false
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@export var enabled: bool = true:
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set(value):
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if value != enabled:
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update(value)
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enabled = value
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var world: World
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var previous_tiles: Array[Vector2i] = []
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var previous_position: Vector2 = Vector2()
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func _ready() -> void:
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world = find_parent("TileMap")
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previous_position = global_position
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update(true)
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func _exit_tree() -> void:
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update(false)
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func _process(delta: float) -> void:
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if global_position != previous_position:
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previous_position = global_position
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if enabled:
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update(false)
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update(true)
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func get_overlapped_tiles() -> Array[Vector2i]:
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var top_left_pos: Vector2i = world.local_to_map(world.to_local(global_position) - Vector2(radius, radius))
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var bottom_right_pos: Vector2i = world.local_to_map(world.to_local(global_position) + Vector2(radius, radius))
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var ret: Array[Vector2i] = []
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for x in range(top_left_pos.x, bottom_right_pos.x+1):
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for y in range(top_left_pos.y, bottom_right_pos.y+1):
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var tile: Vector2i = Vector2i(x,y)
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if world.get_cell_source_id(tile):
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continue
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ret.append(tile)
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return ret
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func update(enable: bool):
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var tiles: Array[Vector2i]
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if enable:
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tiles = get_overlapped_tiles()
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previous_tiles = tiles
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else:
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tiles = previous_tiles
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for tile in tiles:
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if solid:
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world.astar_grid.set_point_solid(tile, enable)
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var weight: float = world.astar_grid.get_point_weight_scale(tile)
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#print("Reading tile %s weight: %f" % [tile, weight])
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if enable:
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weight += added_weight
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else:
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weight -= added_weight
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#print("Updating tile %s with weight %f" % [tile, weight])
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#if weight > 1:
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#world.set_cell(tile, 0, Vector2(1,1))
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#else:
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#world.set_cell(tile, 0, Vector2(0,0))
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world.astar_grid.set_point_weight_scale(tile, weight)
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