24 lines
752 B
GDScript
24 lines
752 B
GDScript
## UltrasoundMachine — displays a continuous heartbeat pulse on the screen.
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class_name UltrasoundMachine extends Node2D
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const BEAT_RISE_DURATION: float = 0.12
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const BEAT_FALL_DURATION: float = 0.12
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const BEAT_INTERVAL: float = 0.60
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const BEAT_SCALE_PEAK: Vector2 = Vector2(1.5, 1.5)
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const BEAT_SCALE_REST: Vector2 = Vector2(1.0, 1.0)
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func _ready() -> void:
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_start_heartbeat_loop()
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func _start_heartbeat_loop() -> void:
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var dot: Node2D = get_node_or_null("HeartbeatDot") as Node2D
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if dot == null:
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return
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var tween: Tween = create_tween()
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tween.set_loops()
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tween.tween_property(dot, "scale", BEAT_SCALE_PEAK, BEAT_RISE_DURATION)
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tween.tween_property(dot, "scale", BEAT_SCALE_REST, BEAT_FALL_DURATION)
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tween.tween_interval(BEAT_INTERVAL)
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