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37 lines
1015 B
GDScript
37 lines
1015 B
GDScript
class_name CycleTimer
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@export var period: float = 1
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var startTime: float = 0
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var running: bool = false
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var distance: float = 200
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var bullets: Array[BulletBase] = []
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func start():
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startTime = WorldManager.getTime()
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running = true
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func lifetime():
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return WorldManager.getTime() - startTime
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func getStateAngle(index: int):
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return lifetime() / period * deg_to_rad(360) - deg_to_rad(360.0 * index / len(bullets))
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func forceFilter():
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bullets = bullets.filter(
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func(b):
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if is_instance_valid(b) && b is BulletBase:
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return !b.destroying
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else:
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return false
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)
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func apply(where: Vector2):
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forceFilter()
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for index in len(bullets):
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var bullet = bullets[index]
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var newStateAngle = lerp_angle(bullet.cycleStateAngle, getStateAngle(index), 0.1)
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var offset = Vector2.from_angle(newStateAngle)
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bullet.cycleStateAngle = newStateAngle
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offset.y *= 0.25
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bullet.position = where + offset * distance
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bullet.scale = Vector2.ONE * (1 + offset.y)
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func host(bullet: BulletBase):
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bullets.append(bullet)
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