// code from: https://github.com/Strdate/SmartIntersections/blob/master/SmartIntersections/Patch/LoadPathsPatch.cs
public static IEnumerable <CodeInstruction> Transpiler(ILGenerator il, IEnumerable <CodeInstruction> instructions)
{
var fTempNodeBuffer = AccessTools.DeclaredField(typeof(NetManager), nameof(NetManager.m_tempNodeBuffer))
?? throw new Exception("cound not find NetManager.m_tempNodeBuffer");
var mClear = AccessTools.DeclaredMethod(fTempNodeBuffer.FieldType, nameof(FastList <ushort> .Clear))
?? throw new Exception("cound not find m_tempNodeBuffer.Clear");
var mAfterIntersectionBuilt = AccessTools.DeclaredMethod(
typeof(LoadPathsPatch), nameof(AfterIntersectionBuilt))
?? throw new Exception("cound not find AfterIntersectionBuilt()");
List <CodeInstruction> codes = TranspilerUtil.ToCodeList(instructions);
bool comp(int i) =>
codes[i].opcode == OpCodes.Ldfld && codes[i].operand == fTempNodeBuffer &&
codes[i + 1].opcode == OpCodes.Callvirt && codes[i + 1].operand == mClear;
int index = TranspilerUtil.SearchGeneric(codes, comp, index: 0, counter: 2);
index -= 1; // index to insert instructions.
var newInstructions = new[] {
new CodeInstruction(OpCodes.Ldarg_0), // load argument info
new CodeInstruction(OpCodes.Call, mAfterIntersectionBuilt),
};
TranspilerUtil.InsertInstructions(codes, newInstructions, index);
return(codes);
}
public static IEnumerable <CodeInstruction> Transpiler(ILGenerator il, IEnumerable <CodeInstruction> instructions)
{
var fTempSegmentBuffer = AccessTools.DeclaredField(typeof(NetManager), nameof(NetManager.m_tempSegmentBuffer))
?? throw new Exception("Could not find NetManager.m_tempSegmentBuffer");
var mSize = AccessTools.DeclaredField(fTempSegmentBuffer.FieldType, nameof(FastList <ushort> .m_size))
?? throw new Exception("Could not find m_tempSegmentBuffer.m_size");
var mAfterIntersectionBuilt = AccessTools.DeclaredMethod(
typeof(LoadPathsPatch), nameof(AfterIntersectionBuilt))
?? throw new Exception("Could not find AfterIntersectionBuilt()");
List <CodeInstruction> codes = TranspilerUtil.ToCodeList(instructions);
bool predicate(int i) =>
codes[i].opcode == OpCodes.Blt &&
codes[i - 1].opcode == OpCodes.Ldfld && codes[i - 1].operand == mSize &&
codes[i - 2].opcode == OpCodes.Ldfld && codes[i - 2].operand == fTempSegmentBuffer;
int index = TranspilerUtil.SearchGeneric(codes, predicate, index: 0, counter: 1);
index += 1; // index to insert instructions. (end of the loop)
var newInstructions = new[] {
new CodeInstruction(OpCodes.Ldarg_0), // load argument info
new CodeInstruction(OpCodes.Call, mAfterIntersectionBuilt),
};
TranspilerUtil.InsertInstructions(codes, newInstructions, index);
return(codes);
}