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Implement forced BGM opcodes

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gamer147
2026-07-29 12:38:54 -04:00
parent 137fae848f
commit 2908d38663
14 changed files with 259 additions and 45 deletions
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5
engine/Age.Engine/Hosting/IHost.cs
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@@ -137,6 +137,11 @@ public interface IHost
void DrawTexture(int slot, int srcX, int srcY, int width, int height, int dstX, int dstY);
(int Width, int Height) GetTextureSize(int slot);
void PlayBgm(long id);
// Ordinary op 0xbf is VM-filtered so reasserting the current track is idempotent. Ops
// 0xb7/0xb9 deliberately bypass that guard and restart with logical loop/one-shot mode.
void RestartBgm(long id, int startMode) => PlayBgm(id);
// Op 0xb8 releases the current source rather than merely applying a zero-volume envelope.
void StopBgm() => FadeBgm(0, 0);
void PlayVoice(long id);
// Native voice playback retains a second start argument: ordinary dialogue passes 0,
// while History replay (0x1bd) passes 1. Existing non-audio hosts may ignore it.