20 lines
700 B
GDScript
20 lines
700 B
GDScript
class_name ExpansionSquarePattern extends ExpansionBase
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const EXPANSION_STAGES: int = 3
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var expansion_stage: int = 0
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var expansion_tiles: Array[Vector2i] = []
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func expand_next_tile() -> Vector2i:
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if expansion_tiles.is_empty():
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if expansion_stage < EXPANSION_STAGES:
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expansion_stage += 1
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for x in range(-expansion_stage, expansion_stage + 1):
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for y in range(-expansion_stage, expansion_stage + 1):
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if abs(x) == expansion_stage or abs(y) == expansion_stage:
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expansion_tiles.append(Vector2i(x, y))
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if expansion_stage == EXPANSION_STAGES and expansion_tiles.size() == 1:
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expansion_finished.emit()
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return expansion_tiles.pop_at(randi_range(0, expansion_tiles.size() - 1))
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