mirror of
https://github.com/jcreek/CosmicClash.git
synced 2026-09-10 16:04:04 +00:00
Josh Creek
87 lines
2.3 KiB
GDScript
87 lines
2.3 KiB
GDScript
extends Node
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# Dependency-free audio foundation. Authored assets can replace these tones
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# later without changing gameplay call sites or the multiplayer event flow.
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const SAMPLE_RATE := 44100
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const MAX_INTENSITY := 1.0
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var enabled := true
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func bind_tree_buttons(root: Node) -> void:
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if root == null:
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return
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for node in root.find_children("*", "BaseButton", true, false):
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bind_button(node as BaseButton)
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func bind_button(button: BaseButton) -> void:
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if button == null:
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return
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var callback := Callable(self, "play_ui_click")
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if not button.pressed.is_connected(callback):
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button.pressed.connect(callback)
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func play_ui_click() -> void:
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_play_tone(880.0, 0.045, 0.10)
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func play_countdown(count: int) -> void:
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if count <= 0:
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_play_tone(1046.5, 0.12, 0.18)
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else:
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_play_tone(countdown_frequency(count), 0.08, 0.14)
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func play_impact(intensity: float) -> void:
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var amount := clamp_intensity(intensity)
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if amount <= 0.0:
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return
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_play_tone(150.0 + 180.0 * amount, 0.06 + 0.08 * amount, 0.08 + 0.18 * amount)
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func play_goal() -> void:
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_play_tone(523.25, 0.22, 0.22)
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_play_tone(783.99, 0.30, 0.18)
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static func clamp_intensity(value: float) -> float:
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if not is_finite(value):
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return 0.0
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return clampf(value, 0.0, MAX_INTENSITY)
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static func countdown_frequency(count: int) -> float:
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return 440.0 + float(clampi(count, 1, 9)) * 55.0
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func _play_tone(frequency: float, duration: float, volume: float) -> void:
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if not enabled or frequency <= 0.0 or duration <= 0.0 or volume <= 0.0:
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return
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var stream := AudioStreamWAV.new()
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stream.format = AudioStreamWAV.FORMAT_16_BITS
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stream.mix_rate = SAMPLE_RATE
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stream.stereo = false
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stream.data = _tone_data(frequency, duration, volume)
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var player := AudioStreamPlayer.new()
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player.stream = stream
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add_child(player)
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player.finished.connect(player.queue_free)
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player.play()
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func _tone_data(frequency: float, duration: float, volume: float) -> PackedByteArray:
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var frames := maxi(1, int(duration * SAMPLE_RATE))
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var data := PackedByteArray()
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data.resize(frames * 2)
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for index in frames:
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var envelope := minf(1.0, float(index) / 256.0) * minf(1.0, float(frames - index) / 1024.0)
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var sample := int(sin(TAU * frequency * float(index) / SAMPLE_RATE) * volume * envelope * 32767.0)
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if sample < 0:
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sample += 65536
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data[index * 2] = sample & 0xff
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data[index * 2 + 1] = (sample >> 8) & 0xff
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return data
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