55 lines
1.1 KiB
GDScript
55 lines
1.1 KiB
GDScript
class_name FlashingComponent
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extends Node
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@export var sprite: Node2D
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@export var flash_duration: float = 0.5
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@export var flash_time: float = 0.1
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@export var use_modulate: bool = true
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@export var health_component: HealthComponent
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var tween: Tween
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func _ready() -> void:
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if health_component:
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health_component.on_health_change.connect(on_health_change)
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health_component.on_death.connect(on_death)
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if not sprite:
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printerr("No sprite assigned!")
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return
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func start_flashing() -> void:
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if not sprite:
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return
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if tween:
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tween.kill()
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tween = create_tween()
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tween.set_parallel(false)
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var flashes: int = int(flash_duration / flash_time)
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for i in range(flashes):
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var opacity: float = 0.3 if i % 2 == 0 else 1.0
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tween.tween_property(sprite, "modulate:a" if use_modulate else "visible", opacity if use_modulate else float(i % 2 == 0), flash_time)
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tween.tween_callback(stop_flashing)
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func stop_flashing() -> void:
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if use_modulate:
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sprite.modulate.a = 1.0
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else:
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sprite.visible = true
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func on_health_change(delta: float, _total_health: float) -> void:
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if delta < 0:
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start_flashing()
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func on_death() -> void:
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stop_flashing()
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