AquaDX/AquaMai/Fix/SlideAutoPlayTweak.cs

103 lines
4.1 KiB
C#

using System.Collections.Generic;
using HarmonyLib;
using Manager;
using Monitor;
namespace AquaMai.Fix;
public class SlideAutoPlayTweak
{
/* 这个 Patch 用于修复以下 bug:
* SlideFan 在 AutoPlay 时, 只有第一个箭头会消失
* 原 method 逻辑如下:
*
* if (this.IsNoteCheckTimeStartIgnoreJudgeWait())
* {
* // do something ...
* if (!GameManager.IsAutoPlay())
* {
* // do something ...
* for (int index = 0; index < this._arrowPrefubs.Length && (double) index < (double) num2 * 11.0; ++index)
* {
* // do something about displaying arrows ...
* }
* }
* else
* {
* float num4 = (currentMsec - this.StarLaunchMsec) / (this.StarArriveMsec - this.StarLaunchMsec - this.lastWaitTime);
* for (int index = 0; index < this._arrowPrefubs.Length && (double) index < (double) num4 * 1.0; ++index)
* {
* // do something about displaying arrows ...
* }
* if ((double) num4 > 1.0)
* num1 = 3;
* }
* // do something ...
* }
*
* 导致这个 bug 的原因是 else 分支的 for 循环终止条件写错了, 应该是 11.0 (因为有 11 个箭头), SBGA 写成了 1.0
* 这个 method 中一共只有 5 处 ldc.r4 的 IL Code, 依次为 10.0, 11.0, 1.0, 1.0, 0.0
* 修复 bug 需要把第三处的 1.0 更改为 11.0, 这里使用 Transpiler 解决
*/
[HarmonyTranspiler]
[HarmonyPatch(typeof(SlideFan), "NoteCheck")]
private static IEnumerable<CodeInstruction> FixFanAutoPlayArrow(IEnumerable<CodeInstruction> instructions)
{
List<CodeInstruction> instList = new List<CodeInstruction>(instructions);
bool found = false;
for (int i = 0; i < instList.Count; i++)
{
CodeInstruction inst = instList[i];
if (inst.LoadsConstant(11.0))
{
found = true;
}
if (found && inst.LoadsConstant(1.0))
{
inst.operand = 11.0f;
break;
}
}
return instList;
}
/* 这个 Patch 让 Slide 在 AutoPlay 的时候, 每个区仍然会分按下和松开两段进行推进 (加上 this._hitIn 的变化)
* 原 method 逻辑如下:
*
* if (!GameManager.IsAutoPlay())
* {
* // do somethings ...
* }
* else
* {
* float num1 = (currentMsec - this.StarLaunchMsec) / (this.StarArriveMsec - this.StarLaunchMsec - this.lastWaitTime);
* this._hitIndex = (int) ((double) this._hitAreaList.Count * (double) num1);
* if (this._hitIndex >= this._hitAreaList.Count)
* this._hitIndex = this._hitAreaList.Count - 1;
* if (this._hitIndex < 0)
* this._hitIndex = 0;
* int num2 = (int) ((double) this._dispLaneNum * this.GetDeleteArrowDistance());
* // do somethings ...
* }
*
* 现在要在 this.GetDeleteArrowDistance() 之前插入
* this._hitIn = ((float)this._hitAreaList.Count * num1 > (float)this._hitIndex + 0.5f);
* 这段代码, 可以采用 Prefix, GetDeleteArrowDistance() 只在两个地方调用过, 另一处就在上面的 if 分支中 (即非 AutoPlay 情况)
*/
[HarmonyPrefix]
[HarmonyPatch(typeof(SlideRoot), "GetDeleteArrowDistance")]
private static void FixSlideAutoPlayArrow(
SlideRoot __instance, ref bool ____hitIn, int ____hitIndex, List<SlideManager.HitArea> ____hitAreaList,
float ___StarLaunchMsec, float ___StarArriveMsec, float ___lastWaitTime
)
{
if (GameManager.IsAutoPlay())
{
float prop = (NotesManager.GetCurrentMsec() - ___StarLaunchMsec) / (___StarArriveMsec - ___StarLaunchMsec - ___lastWaitTime);
____hitIn = ____hitAreaList.Count * prop > ____hitIndex + 0.5f;
}
}
}