127 lines
2.3 KiB
Haxe
127 lines
2.3 KiB
Haxe
package kha.audio2;
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import kha.js.AEAudioChannel;
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import kha.audio1.AudioChannel;
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enum abstract PlayMode(Int) {
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var Stopped;
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var Paused;
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var Playing;
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}
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class VirtualStreamChannel implements kha.audio1.AudioChannel {
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var aeChannel: AEAudioChannel;
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var mode = PlayMode.Playing;
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var lastTickTime: Float;
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var lastPosition: Float;
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var looping: Bool;
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public function new(aeChannel: AEAudioChannel, looping: Bool) {
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this.aeChannel = aeChannel;
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this.looping = looping;
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lastTickTime = Scheduler.realTime();
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lastPosition = 0;
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}
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public function wake(): Void {
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updatePosition();
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aeChannel.position = lastPosition;
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aeChannel.play();
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}
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function updatePosition(): Void {
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var now = Scheduler.realTime();
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switch (mode) {
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case Stopped:
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lastPosition = 0;
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case Paused:
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// nothing
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case Playing:
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lastPosition += now - lastTickTime;
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while (lastPosition > length) {
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lastPosition -= length;
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}
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}
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lastTickTime = now;
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}
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public function play(): Void {
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if (SystemImpl.mobileAudioPlaying) {
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aeChannel.play();
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}
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else {
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updatePosition();
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mode = Playing;
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}
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}
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public function pause(): Void {
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if (SystemImpl.mobileAudioPlaying) {
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aeChannel.pause();
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}
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else {
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updatePosition();
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mode = Paused;
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}
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}
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public function stop(): Void {
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if (SystemImpl.mobileAudioPlaying) {
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aeChannel.stop();
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}
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else {
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updatePosition();
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mode = Stopped;
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}
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}
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public var length(get, never): Float; // Seconds
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function get_length(): Float {
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return aeChannel.length;
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}
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public var position(get, set): Float; // Seconds
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function get_position(): Float {
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if (SystemImpl.mobileAudioPlaying) {
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return aeChannel.position;
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}
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else {
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updatePosition();
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return lastPosition;
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}
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}
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function set_position(value: Float): Float {
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if (SystemImpl.mobileAudioPlaying) {
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return aeChannel.position = value;
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}
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else {
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updatePosition();
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return lastPosition = value;
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}
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}
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public var volume(get, set): Float;
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function get_volume(): Float {
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return aeChannel.volume;
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}
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function set_volume(value: Float): Float {
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return aeChannel.volume = value;
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}
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public var finished(get, never): Bool;
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function get_finished(): Bool {
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if (SystemImpl.mobileAudioPlaying) {
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return aeChannel.finished;
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}
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else {
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return mode == Stopped || (!looping && position >= length);
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}
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}
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}
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