xiandie/scene/effect/dizzy_shader.gd

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GDScript3
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extends CanvasLayer
@onready var rect = $ColorRect as ColorRect
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func _ready() -> void:
rect.material.set("shader_parameter/intensity", 0.0)
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var tween: Tween
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func dizzy(duration := 3.5, intensity := 1.5, ease_in_duration := 0.3, ease_out_duration := 0.3) -> void:
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if duration < 0.6:
return
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if tween and tween.is_valid():
tween.kill()
show()
tween = create_tween()
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tween.tween_property(rect.material, "shader_parameter/intensity", intensity, ease_in_duration)
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tween.tween_interval(duration - 0.6)
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tween.tween_property(rect.material, "shader_parameter/intensity", 0.0, ease_out_duration).set_ease(Tween.EASE_OUT).set_trans(Tween.TRANS_CUBIC)
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tween.finished.connect(hide)