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- {"ast":null,"code":"import { Logger } from \"../Misc/logger.js\";\n/**\n * Wraps one or more Sound objects and selects one with random weight for playback.\n */\nexport class WeightedSound {\n /**\n * Creates a new WeightedSound from the list of sounds given.\n * @param loop When true a Sound will be selected and played when the current playing Sound completes.\n * @param sounds Array of Sounds that will be selected from.\n * @param weights Array of number values for selection weights; length must equal sounds, values will be normalized to 1\n */\n constructor(loop, sounds, weights) {\n /** When true a Sound will be selected and played when the current playing Sound completes. */\n this.loop = false;\n this._coneInnerAngle = 360;\n this._coneOuterAngle = 360;\n this._volume = 1;\n /** A Sound is currently playing. */\n this.isPlaying = false;\n /** A Sound is currently paused. */\n this.isPaused = false;\n this._sounds = [];\n this._weights = [];\n if (sounds.length !== weights.length) {\n throw new Error(\"Sounds length does not equal weights length\");\n }\n this.loop = loop;\n this._weights = weights;\n // Normalize the weights\n let weightSum = 0;\n for (const weight of weights) {\n weightSum += weight;\n }\n const invWeightSum = weightSum > 0 ? 1 / weightSum : 0;\n for (let i = 0; i < this._weights.length; i++) {\n this._weights[i] *= invWeightSum;\n }\n this._sounds = sounds;\n for (const sound of this._sounds) {\n sound.onEndedObservable.add(() => {\n this._onended();\n });\n }\n }\n /**\n * The size of cone in degrees for a directional sound in which there will be no attenuation.\n */\n get directionalConeInnerAngle() {\n return this._coneInnerAngle;\n }\n /**\n * The size of cone in degrees for a directional sound in which there will be no attenuation.\n */\n set directionalConeInnerAngle(value) {\n if (value !== this._coneInnerAngle) {\n if (this._coneOuterAngle < value) {\n Logger.Error(\"directionalConeInnerAngle: outer angle of the cone must be superior or equal to the inner angle.\");\n return;\n }\n this._coneInnerAngle = value;\n for (const sound of this._sounds) {\n sound.directionalConeInnerAngle = value;\n }\n }\n }\n /**\n * Size of cone in degrees for a directional sound outside of which there will be no sound.\n * Listener angles between innerAngle and outerAngle will falloff linearly.\n */\n get directionalConeOuterAngle() {\n return this._coneOuterAngle;\n }\n /**\n * Size of cone in degrees for a directional sound outside of which there will be no sound.\n * Listener angles between innerAngle and outerAngle will falloff linearly.\n */\n set directionalConeOuterAngle(value) {\n if (value !== this._coneOuterAngle) {\n if (value < this._coneInnerAngle) {\n Logger.Error(\"directionalConeOuterAngle: outer angle of the cone must be superior or equal to the inner angle.\");\n return;\n }\n this._coneOuterAngle = value;\n for (const sound of this._sounds) {\n sound.directionalConeOuterAngle = value;\n }\n }\n }\n /**\n * Playback volume.\n */\n get volume() {\n return this._volume;\n }\n /**\n * Playback volume.\n */\n set volume(value) {\n if (value !== this._volume) {\n for (const sound of this._sounds) {\n sound.setVolume(value);\n }\n }\n }\n _onended() {\n if (this._currentIndex !== undefined) {\n this._sounds[this._currentIndex].autoplay = false;\n }\n if (this.loop && this.isPlaying) {\n this.play();\n } else {\n this.isPlaying = false;\n }\n }\n /**\n * Suspend playback\n */\n pause() {\n if (this.isPlaying) {\n this.isPaused = true;\n if (this._currentIndex !== undefined) {\n this._sounds[this._currentIndex].pause();\n }\n }\n }\n /**\n * Stop playback\n */\n stop() {\n this.isPlaying = false;\n if (this._currentIndex !== undefined) {\n this._sounds[this._currentIndex].stop();\n }\n }\n /**\n * Start playback.\n * @param startOffset Position the clip head at a specific time in seconds.\n */\n play(startOffset) {\n var _this$_currentIndex;\n if (!this.isPaused) {\n this.stop();\n const randomValue = Math.random();\n let total = 0;\n for (let i = 0; i < this._weights.length; i++) {\n total += this._weights[i];\n if (randomValue <= total) {\n this._currentIndex = i;\n break;\n }\n }\n }\n const sound = this._sounds[(_this$_currentIndex = this._currentIndex) !== null && _this$_currentIndex !== void 0 ? 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1 / weightSum : 0;\n for (let i = 0; i < this._weights.length; i++) {\n this._weights[i] *= invWeightSum;\n }\n this._sounds = sounds;\n for (const sound of this._sounds) {\n sound.onEndedObservable.add(() => {\n this._onended();\n });\n }\n }\n /**\n * The size of cone in degrees for a directional sound in which there will be no attenuation.\n */\n get directionalConeInnerAngle() {\n return this._coneInnerAngle;\n }\n /**\n * The size of cone in degrees for a directional sound in which there will be no attenuation.\n */\n set directionalConeInnerAngle(value) {\n if (value !== this._coneInnerAngle) {\n if (this._coneOuterAngle < value) {\n Logger.Error(\"directionalConeInnerAngle: outer angle of the cone must be superior or equal to the inner angle.\");\n return;\n }\n this._coneInnerAngle = value;\n for (const sound of this._sounds) {\n sound.directionalConeInnerAngle = value;\n }\n }\n }\n /**\n * Size of cone in degrees for a directional sound outside of which there will be no sound.\n * Listener angles between innerAngle and outerAngle will falloff linearly.\n */\n get directionalConeOuterAngle() {\n return this._coneOuterAngle;\n }\n /**\n * Size of cone in degrees for a directional sound outside of which there will be no sound.\n * Listener angles between innerAngle and outerAngle will falloff linearly.\n */\n set directionalConeOuterAngle(value) {\n if (value !== this._coneOuterAngle) {\n if (value < this._coneInnerAngle) {\n Logger.Error(\"directionalConeOuterAngle: outer angle of the cone must be superior or equal to the inner angle.\");\n return;\n }\n this._coneOuterAngle = value;\n for (const sound of this._sounds) {\n sound.directionalConeOuterAngle = value;\n }\n }\n }\n /**\n * Playback volume.\n */\n get volume() {\n return this._volume;\n }\n /**\n * Playback volume.\n */\n set volume(value) {\n if (value !== this._volume) {\n for (const sound of this._sounds) {\n sound.setVolume(value);\n }\n }\n }\n _onended() {\n if (this._currentIndex !== undefined) {\n this._sounds[this._currentIndex].autoplay = false;\n }\n if (this.loop && this.isPlaying) {\n this.play();\n }\n else {\n this.isPlaying = false;\n }\n }\n /**\n * Suspend playback\n */\n pause() {\n if (this.isPlaying) {\n this.isPaused = true;\n if (this._currentIndex !== undefined) {\n this._sounds[this._currentIndex].pause();\n }\n }\n }\n /**\n * Stop playback\n */\n stop() {\n this.isPlaying = false;\n if (this._currentIndex !== undefined) {\n this._sounds[this._currentIndex].stop();\n }\n }\n /**\n * Start playback.\n * @param startOffset Position the clip head at a specific time in seconds.\n */\n play(startOffset) {\n if (!this.isPaused) {\n this.stop();\n const randomValue = Math.random();\n let total = 0;\n for (let i = 0; i < this._weights.length; i++) {\n total += this._weights[i];\n if (randomValue <= total) {\n this._currentIndex = i;\n break;\n }\n }\n }\n const sound = this._sounds[this._currentIndex ?? 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