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133 lines
2.2 KiB
133 lines
2.2 KiB
package mightypork.gamecore.audio.players;
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import mightypork.gamecore.audio.DeferredAudio;
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import mightypork.gamecore.audio.Volume;
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import mightypork.gamecore.control.interf.Updateable;
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import mightypork.gamecore.control.timing.Pauseable;
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import mightypork.utils.math.animation.AnimDouble;
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import org.lwjgl.openal.AL10;
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public class LoopPlayer extends BaseAudioPlayer implements Updateable, Pauseable {
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private int sourceID = -1;
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/** animator for fade in and fade out */
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private final AnimDouble fadeAnim = new AnimDouble(0);
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private double lastUpdateGain = 0;
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/** flag that track is paused */
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private boolean paused = true;
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/** Default fadeIn time */
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private double inTime = 1;
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/** Default fadeOut time */
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private double outTime = 1;
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public LoopPlayer(DeferredAudio track, double pitch, double baseGain, Volume gainMultiplier) {
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super(track, (float) pitch, (float) baseGain, gainMultiplier);
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paused = true;
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}
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public void setFadeTimes(double in, double out)
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{
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inTime = in;
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outTime = out;
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}
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private void initLoop()
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{
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if (hasAudio() && sourceID == -1) {
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sourceID = getAudio().playAsEffect(getPitch(1), getGain(1), true);
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getAudio().pauseLoop();
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}
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}
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@Override
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public void pause()
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{
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if (!hasAudio() || paused) return;
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initLoop();
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getAudio().pauseLoop();
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paused = true;
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}
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@Override
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public boolean isPaused()
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{
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return paused;
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}
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@Override
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public void resume()
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{
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if (!hasAudio() || !paused) return;
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initLoop();
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sourceID = getAudio().resumeLoop();
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paused = false;
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}
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@Override
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public void update(double delta)
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{
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if (!hasAudio() || paused) return;
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initLoop();
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fadeAnim.update(delta);
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final double gain = getGain(fadeAnim.now());
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if (!paused && gain != lastUpdateGain) {
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AL10.alSourcef(sourceID, AL10.AL_GAIN, (float) gain);
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lastUpdateGain = gain;
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}
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if (gain == 0 && !paused) pause(); // pause on zero volume
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}
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public void fadeIn(double secs)
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{
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if (!hasAudio()) return;
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resume();
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fadeAnim.fadeIn(secs);
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}
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public void fadeOut(double secs)
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{
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if (!hasAudio()) return;
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fadeAnim.fadeOut(secs);
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}
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public void fadeIn()
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{
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fadeIn(inTime);
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}
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public void fadeOut()
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{
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fadeOut(outTime);
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}
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}
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