35 lines
1.4 KiB
Python
35 lines
1.4 KiB
Python
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from survival import esper
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from survival.components.movement_component import MovementComponent
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from survival.components.moving_component import MovingComponent
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from survival.components.position_component import PositionComponent
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from survival.enums import Direction
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from survival.pathfinding import breadth_first_search
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from survival.systems.input_system import PathfindingComponent
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class PathfindingMovementSystem(esper.Processor):
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def __init__(self, game_map):
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self.game_map = game_map
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pass
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def process(self, dt):
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for ent, (pos, pathfinding, movement) in self.world.get_components(PositionComponent, PathfindingComponent,
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MovementComponent):
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if pathfinding.path is None:
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pathfinding.path = breadth_first_search(self.game_map, pos.grid_position, pathfinding.target_grid_pos)
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if len(pathfinding.path) < 1:
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self.world.remove_component(ent, PathfindingComponent)
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continue
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if self.world.has_component(ent, MovingComponent):
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continue
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target = pathfinding.path.pop(0)
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vector = (target[0] - pos.grid_position[0], target[1] - pos.grid_position[1])
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direction = Direction.from_vector(vector)
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if direction != pos.direction:
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pos.direction = direction
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self.world.add_component(ent, MovingComponent())
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