100 lines
4.1 KiB
C#
100 lines
4.1 KiB
C#
using System.Collections;
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using UnityEngine;
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namespace OCES.Audio
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{
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/// <summary>
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/// 环境音通道播放器。
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/// 与 MusicChannelPlayer 逻辑相同，但使用 AmbienceTransition 表，不涉及节拍对齐。
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/// </summary>
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public class AmbienceChannelPlayer
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{
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readonly AmbienceTransitionConfig m_transitionConfig;
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readonly MonoBehaviour m_coroutineHost;
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readonly ChannelFader m_fader;
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ContainerPlayHandle m_currentHandle;
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Coroutine m_transitionCoroutine;
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uint m_currentContainerId;
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public AmbienceChannelPlayer(
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AmbienceTransitionConfig transitionConfig,
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MusicContainerPlayer player,
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MonoBehaviour coroutineHost)
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{
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this.m_transitionConfig = transitionConfig;
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this.m_coroutineHost = coroutineHost;
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this.m_fader = new ChannelFader(player, coroutineHost);
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}
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// ─────────────────────────────────────────────
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// 公开接口
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// ─────────────────────────────────────────────
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public void SwitchTo(uint newContainerId, uint fromPathId, uint toPathId)
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{
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if (newContainerId == this.m_currentContainerId && this.m_currentHandle != null)
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return;
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AmbienceTransition transition = ResolveTransition(fromPathId, toPathId);
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if (this.m_transitionCoroutine != null)
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this.m_coroutineHost.StopCoroutine(this.m_transitionCoroutine);
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this.m_transitionCoroutine = this.m_coroutineHost.StartCoroutine(
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DoTransition(newContainerId, transition));
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}
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public void Stop()
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{
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if (this.m_transitionCoroutine != null)
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this.m_coroutineHost.StopCoroutine(this.m_transitionCoroutine);
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this.m_fader.StopCurrent();
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}
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// ─────────────────────────────────────────────
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// Transition 流程（无节拍对齐）
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// ─────────────────────────────────────────────
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IEnumerator DoTransition(uint newContainerId, AmbienceTransition transition)
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{
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ContainerPlayHandle outgoing = this.m_fader.CurrentHandle;
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float outgoingVolume = this.m_fader.CurrentVolume;
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this.m_coroutineHost.StartCoroutine(
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this.m_fader.FadeOutBranch(outgoing, outgoingVolume, transition));
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yield return this.m_coroutineHost.StartCoroutine(
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this.m_fader.FadeInBranch(newContainerId, transition));
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}
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// ─────────────────────────────────────────────
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// 工具
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// ─────────────────────────────────────────────
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AmbienceTransition ResolveTransition(uint fromPathId, uint toPathId)
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{
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// 优先精确匹配
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uint exactId = fromPathId * 1000 + toPathId;
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AmbienceTransition exact = this.m_transitionConfig.QueryById(exactId);
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if (exact != null) return exact;
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// From 为任意
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uint fromWildcard = 999u * 1000 + toPathId;
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AmbienceTransition fromWild = this.m_transitionConfig.QueryById(fromWildcard);
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if (fromWild != null) return fromWild;
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// To 为任意
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uint toWildcard = fromPathId * 1000 + 999u;
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AmbienceTransition toWild = this.m_transitionConfig.QueryById(toWildcard);
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if (toWild != null) return toWild;
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// 全通配
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const uint allWild = 999u * 1000 + 999u;
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return this.m_transitionConfig.QueryById(allWild);
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}
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}
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}
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