static IEnumerable <CodeInstruction> Transpiler(IEnumerable <CodeInstruction> instructions, MethodBase original)
{
var codes = instructions.ToCodeList();
int iGetSegment1 = codes.Search(c => c.Calls(mGetSegment), count: 1);
int iStSegmentID1 = codes.Search(c => c.IsStloc(), startIndex: iGetSegment1);
var ldSegmentID1 = TranspilerUtils.BuildLdLocFromStLoc(codes[iStSegmentID1]);
int iGetSegment2 = codes.Search(c => c.Calls(mGetSegment), count: 1);
int iStSegmentID2 = codes.Search(c => c.IsStloc(), startIndex: iGetSegment2);
var ldSegmentID2 = TranspilerUtils.BuildLdLocFromStLoc(codes[iStSegmentID2]);
codes.InsertInstructions(iStSegmentID2 + 1, new[] {
ldSegmentID1,
ldSegmentID2,
new CodeInstruction(OpCodes.Call, ShiftData.mPrefix),
});
// DC part of the code is before m_requireSegmentRenderers
int i_requireSegmentRenderers = codes.Search(c => c.LoadsField(f_requireSegmentRenderers));
codes.InsertInstructions(i_requireSegmentRenderers, new[] {
new CodeInstruction(OpCodes.Call, ShiftData.mPostfix),
});
return(codes);
}
public static IEnumerable <CodeInstruction> Transpiler(ILGenerator il, IEnumerable <CodeInstruction> instructions)
{
var netSegmentInfoGetter = typeof(global::NetSegment).GetProperty("Info")?.GetGetMethod();
if (netSegmentInfoGetter == null)
{
Debug.LogError("Necessary field not found. Cancelling transpiler!");
return(instructions);
}
var originalCodes = new List <CodeInstruction>(instructions);
var codes = new List <CodeInstruction>(originalCodes);
var index = 0;
CodeInstruction infoLocalVarLdloc = null;
for (; index < codes.Count; index++)
{
// IL_0003: call instance class NetInfo NetSegment::get_Info()
if (codes[index].opcode == OpCodes.Call && codes[index].operand == netSegmentInfoGetter && TranspilerUtils.IsStLoc(codes[index + 1]))
{
infoLocalVarLdloc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 1]);
index += 2;
break;
}
}
if (infoLocalVarLdloc == null)
{
Debug.LogError("NetSegmentCalculateGroupDataPatch: info local variable not found. Cancelling transpiler!");
return(originalCodes);
}
var segmentIdLdInstruction = new CodeInstruction(OpCodes.Ldarg_1); // segmentID is first argument
if (!NetSegmentRenderPatch.PatchLanesAndSegments(il, codes, infoLocalVarLdloc, segmentIdLdInstruction, ref index))
{
Debug.LogError("NetSegmentCalculateGroupDataPatch: Could not apply NetSegmentRenderPatch. Cancelling transpiler!");
return(originalCodes);
}
return(codes);
}
public static IEnumerable <CodeInstruction> Transpiler(ILGenerator il, IEnumerable <CodeInstruction> instructions)
{
var originalInstructions = new List <CodeInstruction>(instructions);
var netInfoCreatePavementField = typeof(NetInfo).GetField("m_createPavement");
var netInfoFlattenTerrainField = typeof(NetInfo).GetField("m_flattenTerrain");
var segmentSkinsField = typeof(NetworkSkinManager).GetField("SegmentSkins", BindingFlags.Static | BindingFlags.Public);
var terrainSurfacePatcherApplyMethod = typeof(TerrainSurfacePatcher).GetMethod("Apply");
var terrainSurfacePatcherRevertMethod = typeof(TerrainSurfacePatcher).GetMethod("Revert");
if (netInfoCreatePavementField == null || netInfoFlattenTerrainField == null || segmentSkinsField == null || terrainSurfacePatcherApplyMethod == null || terrainSurfacePatcherRevertMethod == null)
{
Debug.LogError("NetNodeTerrainUpdatedPatch: Necessary field and methods not found. Cancelling transpiler!");
return(originalInstructions);
}
var codes = new List <CodeInstruction>(originalInstructions);
var patcherStateLocalVar = il.DeclareLocal(typeof(TerrainSurfacePatcherState));
patcherStateLocalVar.SetLocalSymInfo("patcherState");
int index = 0;
CodeInstruction num14LocalVarLdLoc = null;
CodeInstruction num13LocalVarLdLoc = null;
CodeInstruction info4LocalVarLdLoc = null;
CodeInstruction netInfo2LocalVarLdLoc = null;
CodeInstruction segment7LocalVarLdLoc = null;
CodeInstruction num6LocalVarLdLoc = null;
for (; index < codes.Count; index++)
{
// NetInfo netInfo2 = (num14 > num13 >> 1) ? netInfo : info4;
//IL_0a41: ldloc.s 74 (num14)
//IL_0a43: ldloc.s 71 (num13)
//IL_0a45: ldc.i4.1
//IL_0a46: shr
//IL_0a47: bgt IL_0a53
//IL_0a4c: ldloc.s 40 (info4)
//IL_0a4e: br IL_0a55
//IL_0a53: ldloc.s 48 (netInfo)
//IL_0a55: stloc.s 75 (netInfo2)
if (codes[index].opcode == OpCodes.Shr &&
TranspilerUtils.IsLdLoc(codes[index - 3]) &&
TranspilerUtils.IsLdLoc(codes[index - 2]) &&
codes[index - 1].opcode == OpCodes.Ldc_I4_1
// shr
&& codes[index + 1].opcode == OpCodes.Bgt &&
TranspilerUtils.IsLdLoc(codes[index + 2]) &&
codes[index + 3].opcode == OpCodes.Br &&
TranspilerUtils.IsLdLoc(codes[index + 4]) &&
TranspilerUtils.IsStLoc(codes[index + 5])
)
{
TranspilerUtils.LogDebug("Found NetInfo netInfo2 = (num14 > num13 >> 1) ? netInfo : info4;");
num14LocalVarLdLoc = TranspilerUtils.BuildLdLocFromLdLoc(codes[index - 3]);
num13LocalVarLdLoc = TranspilerUtils.BuildLdLocFromLdLoc(codes[index - 2]);
info4LocalVarLdLoc = TranspilerUtils.BuildLdLocFromLdLoc(codes[index + 2]); // 40
var netInfoLocalVarLdLoc = TranspilerUtils.BuildLdLocFromLdLoc(codes[index + 4]); // 48
netInfo2LocalVarLdLoc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 5]); // 75
var findIndex = 0;
segment7LocalVarLdLoc = FindSegment7LocalVar(codes, TranspilerUtils.BuildStLocFromLdLoc(info4LocalVarLdLoc), ref findIndex, index - 3); // 38
num6LocalVarLdLoc = FindNum6LocalVar(codes, TranspilerUtils.BuildStLocFromLdLoc(netInfoLocalVarLdLoc), ref findIndex, index - 3); // 51
break;
}
}
if (num14LocalVarLdLoc == null || num13LocalVarLdLoc == null || info4LocalVarLdLoc == null || netInfo2LocalVarLdLoc == null || segment7LocalVarLdLoc == null || num6LocalVarLdLoc == null)
{
Debug.LogError("NetNodeTerrainUpdatedPatch: Some local variables not found! Cancelling transpiler!");
Debug.LogError($"num14: {num14LocalVarLdLoc}, num13: {num13LocalVarLdLoc}, info4: {info4LocalVarLdLoc}, netInfo2: {netInfo2LocalVarLdLoc}, segment7: {segment7LocalVarLdLoc}, num6: {num6LocalVarLdLoc}");
return(originalInstructions);
}
// segment7 is the segmentID of info4
// num6 is the segmentID of netInfo
// TerrainSurfacePatcherState patcherState = TerrainSurfacePatcher.Apply(netInfo, NetworkSkinManager.SegmentSkins[(int)((num14 > num13 >> 1) ? num6 : segment7)]);
// bool flag8 = netInfo2.m_createPavement && (!netInfo2.m_lowerTerrain || (m_flags & Flags.OnGround) != Flags.None);
var apply1Inserted = false;
for (; index < codes.Count; index++)
{
// bool flag8 = netInfo2.m_createPavement && (!netInfo2.m_lowerTerrain || (m_flags & Flags.OnGround) != Flags.None);
if (TranspilerUtils.IsSameInstruction(codes[index], netInfo2LocalVarLdLoc) &&
codes[index + 1].opcode == OpCodes.Ldfld && codes[index + 1].operand == netInfoCreatePavementField)
{
TranspilerUtils.LogDebug("Found info4.m_createPavement");
var ldLocSegment7Label = il.DefineLabel();
var ldElemtRefLabel = il.DefineLabel();
// TerrainSurfacePatcherState patcherState = TerrainSurfacePatcher.Apply(netInfo, NetworkSkinManager.SegmentSkins[(int)((num14 > num13 >> 1) ? num6 : segment7)]);
var apply1Instructions = new[]
{
new CodeInstruction(netInfo2LocalVarLdLoc),
new CodeInstruction(OpCodes.Ldsfld, segmentSkinsField),
new CodeInstruction(num14LocalVarLdLoc),
new CodeInstruction(num13LocalVarLdLoc),
new CodeInstruction(OpCodes.Ldc_I4_1),
new CodeInstruction(OpCodes.Shr),
new CodeInstruction(OpCodes.Bgt, ldLocSegment7Label),
new CodeInstruction(segment7LocalVarLdLoc),
new CodeInstruction(OpCodes.Br, ldElemtRefLabel),
new CodeInstruction(num6LocalVarLdLoc), // ldLocSegment7Label
new CodeInstruction(OpCodes.Ldelem_Ref), // ldElemtRefLabel
new CodeInstruction(OpCodes.Call, terrainSurfacePatcherApplyMethod),
new CodeInstruction(OpCodes.Stloc, patcherStateLocalVar)
};
apply1Instructions[0].labels.AddRange(codes[index].labels);
codes[index].labels.Clear();
apply1Instructions[9].labels.Add(ldLocSegment7Label);
apply1Instructions[10].labels.Add(ldElemtRefLabel);
codes.InsertRange(index, apply1Instructions);
TranspilerUtils.LogDebug("Apply 1 inserted");
apply1Inserted = true;
index += apply1Instructions.Length;
break;
}
}
if (!apply1Inserted)
{
Debug.LogError("NetNodeTerrainUpdatedPatch: Apply Insertion 1 failed! Cancelling transpiler!");
return(originalInstructions);
}
// NetworkSkins.TerrainSurfacePatcher.Revert(netInfo2, patcherState);
// bool flag12 = netInfo2.m_flattenTerrain || (netInfo2.m_netAI.FlattenGroundNodes() && (m_flags & Flags.OnGround) != Flags.None);
var revert1Inserted = false;
for (; index < codes.Count; index++)
{
// bool flag12 = netInfo2.m_flattenTerrain || (netInfo2.m_netAI.FlattenGroundNodes() && (m_flags & Flags.OnGround) != Flags.None);
if (TranspilerUtils.IsSameInstruction(codes[index], netInfo2LocalVarLdLoc) &&
codes[index + 1].opcode == OpCodes.Ldfld && codes[index + 1].operand == netInfoFlattenTerrainField)
{
TranspilerUtils.LogDebug("Found info4.m_flattenTerrain");
var revert1Instructions = new[]
{
new CodeInstruction(netInfo2LocalVarLdLoc),
new CodeInstruction(OpCodes.Ldloc, patcherStateLocalVar),
new CodeInstruction(OpCodes.Call, terrainSurfacePatcherRevertMethod),
};
revert1Instructions[0].labels.AddRange(codes[index].labels);
codes[index].labels.Clear();
codes.InsertRange(index, revert1Instructions);
TranspilerUtils.LogDebug("Revert 1 inserted");
revert1Inserted = true;
index += revert1Instructions.Length;
break;
}
}
if (!revert1Inserted)
{
Debug.LogError("NetNodeTerrainUpdatedPatch: Revert Insertion 1 failed! Cancelling transpiler!");
return(originalInstructions);
}
// patcherState = NetworkSkins.TerrainSurfacePatcher.Apply(info4, NetworkSkins.Skins.NetworkSkinManager.SegmentSkins[segment7]);
// bool flag13 = info4.m_createPavement && (!info4.m_lowerTerrain || (m_flags & Flags.OnGround) != Flags.None);
var apply2Inserted = false;
for (; index < codes.Count; index++)
{
// bool flag13 = info4.m_createPavement && (!info4.m_lowerTerrain || (m_flags & Flags.OnGround) != Flags.None);
if (TranspilerUtils.IsSameInstruction(codes[index], info4LocalVarLdLoc) &&
codes[index + 1].opcode == OpCodes.Ldfld && codes[index + 1].operand == netInfoCreatePavementField)
{
TranspilerUtils.LogDebug("Found info4.m_createPavement");
// patcherState = NetworkSkins.TerrainSurfacePatcher.Apply(info4, NetworkSkins.Skins.NetworkSkinManager.SegmentSkins[segment7]);
var apply2Instructions = new[]
{
new CodeInstruction(info4LocalVarLdLoc),
new CodeInstruction(OpCodes.Ldsfld, segmentSkinsField),
new CodeInstruction(segment7LocalVarLdLoc),
new CodeInstruction(OpCodes.Ldelem_Ref),
new CodeInstruction(OpCodes.Call, terrainSurfacePatcherApplyMethod),
new CodeInstruction(OpCodes.Stloc, patcherStateLocalVar)
};
apply2Instructions[0].labels.AddRange(codes[index].labels);
codes[index].labels.Clear();
codes.InsertRange(index, apply2Instructions);
TranspilerUtils.LogDebug("Apply 2 inserted");
apply2Inserted = true;
index += apply2Instructions.Length;
break;
}
}
if (!apply2Inserted)
{
Debug.LogError("NetNodeTerrainUpdatedPatch: Apply Insertion 2 failed! Cancelling transpiler!");
return(originalInstructions);
}
// NetworkSkins.TerrainSurfacePatcher.Revert(info4, patcherState);
// bool flag17 = info4.m_flattenTerrain || (info4.m_netAI.FlattenGroundNodes() && (m_flags & Flags.OnGround) != Flags.None);
var revert2Inserted = false;
for (; index < codes.Count; index++)
{
// bool flag17 = info4.m_flattenTerrain || (info4.m_netAI.FlattenGroundNodes() && (m_flags & Flags.OnGround) != Flags.None);
if (TranspilerUtils.IsSameInstruction(codes[index], info4LocalVarLdLoc) &&
codes[index + 1].opcode == OpCodes.Ldfld && codes[index + 1].operand == netInfoFlattenTerrainField)
{
TranspilerUtils.LogDebug("Found info4.m_flattenTerrain");
// NetworkSkins.TerrainSurfacePatcher.Revert(info4, patcherState);
var revert2Instructions = new[]
{
new CodeInstruction(info4LocalVarLdLoc),
new CodeInstruction(OpCodes.Ldloc, patcherStateLocalVar),
new CodeInstruction(OpCodes.Call, terrainSurfacePatcherRevertMethod),
};
revert2Instructions[0].labels.AddRange(codes[index].labels);
codes[index].labels.Clear();
codes.InsertRange(index, revert2Instructions);
TranspilerUtils.LogDebug("Revert 2 inserted");
revert2Inserted = true;
index += revert2Instructions.Length;
break;
}
}
if (!revert2Inserted)
{
Debug.LogError("NetNodeTerrainUpdatedPatch: Revert Insertion 2 failed! Cancelling transpiler!");
return(originalInstructions);
}
return(codes);
}
public static IEnumerable <CodeInstruction> Transpiler(ILGenerator il, IEnumerable <CodeInstruction> instructions)
{
var netNodeFlagsField = typeof(global::NetNode).GetField("m_flags");
var netNodeGetSegmentMethod = typeof(global::NetNode).GetMethod("GetSegment");
var netInfoNodesField = typeof(NetInfo).GetField("m_nodes");
var netInfoNodeDirectConnectField = typeof(NetInfo.Node).GetField("m_directConnect");
var netNodeRenderPatchShouldRenderJunctionNodeMethod =
typeof(NetNodeRenderPatch).GetMethod("ShouldRenderJunctionNode");
var netNodeRenderPatchShouldRenderBendNodeLodMethod =
typeof(NetNodeRenderPatch).GetMethod("ShouldRenderBendNodeLod");
if (netNodeFlagsField == null || netNodeGetSegmentMethod == null || netInfoNodesField == null || netInfoNodeDirectConnectField == null || netNodeRenderPatchShouldRenderJunctionNodeMethod == null || netNodeRenderPatchShouldRenderBendNodeLodMethod == null)
{
Debug.LogError("Necessary methods and field not found. Cancelling transpiler!");
return(instructions);
}
var index = 0;
var originalCodes = new List <CodeInstruction>(instructions);
var codes = new List <CodeInstruction>(originalCodes);
var junctionFlagCheckFound = false;
for (; index < codes.Count; index++)
{
// if ((m_flags & Flags.Junction) != 0)
// IL_004b: ldfld valuetype NetNode/Flags NetNode::m_flags
// IL_0079: ldc.i4 128
if (codes[index].opcode == OpCodes.Ldfld && codes[index].operand == netNodeFlagsField &&
codes[index + 1].opcode == OpCodes.Ldc_I4 && (int)codes[index + 1].operand == (int)global::NetNode.Flags.Junction)
{
junctionFlagCheckFound = true;
break;
}
}
if (!junctionFlagCheckFound)
{
Debug.LogError("NetNodeGroupDataPatch: junctionFlagCheck not found. Cancelling transpiler!");
return(originalCodes);
}
CodeInstruction segmentLocalVarLdloc = null;
CodeInstruction segment2LocalVarLdloc = null;
CodeInstruction nodeLocalVarLdLoc = null;
// ushort segment = GetSegment(i);
for (; index < codes.Count; index++)
{
// IL_0073: call instance uint16 NetNode::GetSegment(int32)
if (codes[index].opcode == OpCodes.Call && codes[index].operand == netNodeGetSegmentMethod && TranspilerUtils.IsStLoc(codes[index + 1]))
{
// IL_0078: stloc.s 5
segmentLocalVarLdloc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 1]);
index += 2;
break;
}
}
// ushort segment2 = GetSegment(j);
for (; index < codes.Count; index++)
{
// IL_0107: call instance uint16 NetNode::GetSegment(int32)
if (codes[index].opcode == OpCodes.Call && codes[index].operand == netNodeGetSegmentMethod && TranspilerUtils.IsStLoc(codes[index + 1]))
{
// IL_010c: stloc.s 11
segment2LocalVarLdloc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 1]);
index += 2;
break;
}
}
// NetInfo.Node node = info2.m_nodes[k];
for (; index < codes.Count; index++)
{
// IL_0359: ldfld class NetInfo/Node[] NetInfo::m_nodes
// IL_035e: ldloc.s 21
// IL_0360: ldelem.ref
// IL_0361: stloc.s 22
if (codes[index].opcode == OpCodes.Ldfld && codes[index].operand == netInfoNodesField &&
TranspilerUtils.IsLdLoc(codes[index + 1]) &&
codes[index + 2].opcode == OpCodes.Ldelem_Ref &&
TranspilerUtils.IsStLoc(codes[index + 3]))
{
// IL_0361: stloc.s 22
nodeLocalVarLdLoc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 3]);
index += 4;
break;
}
}
if (segmentLocalVarLdloc == null || segment2LocalVarLdloc == null || nodeLocalVarLdLoc == null)
{
Debug.LogError("NetNodeGroupDataPatch: Necessary field for junction not found. Cancelling transpiler!");
Debug.LogError($"{segmentLocalVarLdloc}, {segment2LocalVarLdloc}, {nodeLocalVarLdLoc}");
return(originalCodes);
}
var junctionRenderCheckInserted = false;
for (; index < codes.Count; index++)
{
// IL_017c: ldloc.s 22
// IL_0181: ldfld bool NetInfo/Node::m_directConnect
// IL_0182: brfalse IL_04c3
if (TranspilerUtils.IsSameInstruction(codes[index], nodeLocalVarLdLoc, true) &&
codes[index + 1].opcode == OpCodes.Ldfld && codes[index + 1].operand == netInfoNodeDirectConnectField &&
codes[index + 2].opcode == OpCodes.Brfalse)
{
var labelIfFalse = codes[index + 2].operand;
var insertionPosition = index + 3;
// && ShouldRenderJunctionNode(node, segment, segment2)
// IL_01FD: ldloc.s 22
// IL_01FF: ldloc.s 11
// IL_0200: ldloc.s 22
// IL_0201: call bool[NetworkSkins] NetworkSkins.Patches.NetNodeRenderPatch::ShouldRenderJunctionNode(class NetInfo/Node, uint16, uint16)
// IL_0206: brfalse.s IL_04c3
var renderCheckInstructions = new[]
{
new CodeInstruction(nodeLocalVarLdLoc),
new CodeInstruction(segmentLocalVarLdloc),
new CodeInstruction(segment2LocalVarLdloc),
new CodeInstruction(OpCodes.Call, netNodeRenderPatchShouldRenderJunctionNodeMethod),
new CodeInstruction(OpCodes.Brfalse, labelIfFalse),
};
renderCheckInstructions[0].labels.AddRange(codes[insertionPosition].labels);
codes[insertionPosition].labels.Clear();
codes.InsertRange(insertionPosition, renderCheckInstructions);
TranspilerUtils.LogDebug("Junction render check inserted");
index = insertionPosition + renderCheckInstructions.Length;
junctionRenderCheckInserted = true;
break;
}
}
if (!junctionRenderCheckInserted)
{
Debug.LogError("NetNodeGroupDataPatch: Junction render check not inserted. Cancelling transpiler!");
return(originalCodes);
}
var bendFlagCheckFound = false;
for (; index < codes.Count; index++)
{
// else if ((m_flags & Flags.Bend) != 0)
// IL_0e28: ldarg.s 'flags'
// IL_0e2a: ldc.i4.s 64
if (codes[index].opcode == OpCodes.Ldfld && codes[index].operand == netNodeFlagsField &&
codes[index + 1].opcode == OpCodes.Ldc_I4_S && (sbyte)codes[index + 1].operand == (sbyte)global::NetNode.Flags.Bend)
{
bendFlagCheckFound = true;
break;
}
}
if (!bendFlagCheckFound)
{
Debug.LogError("NetNodeGroupDataPatch: bendFlagCheck not found. Cancelling transpiler!");
return(originalCodes);
}
CodeInstruction node5LocalVarLdLoc = null;
for (; index < codes.Count; index++)
{
// IL_0359: ldfld class NetInfo/Node[] NetInfo::m_nodes
// IL_05ed: ldloc.s 44
// IL_05ef: ldelem.ref
// IL_05f0: stloc.s 45
if (codes[index].opcode == OpCodes.Ldfld && codes[index].operand == netInfoNodesField &&
TranspilerUtils.IsLdLoc(codes[index + 1]) &&
codes[index + 2].opcode == OpCodes.Ldelem_Ref &&
TranspilerUtils.IsStLoc(codes[index + 3]))
{
// IL_0361: stloc.s 22
node5LocalVarLdLoc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 3]);
index += 4;
break;
}
}
if (node5LocalVarLdLoc == null)
{
Debug.LogError("NetNodeGroupDataPatch: node5 local var for bend not found. Cancelling transpiler!");
return(originalCodes);
}
var bendRenderCheckInserted = false;
for (; index < codes.Count; index++)
{
// IL_0990: ldloc.s 40
// IL_0992: ldfld bool NetInfo/Node::m_directConnect
// IL_0997: brfalse IL_0b19
if (codes[index].opcode == OpCodes.Ldc_I4 && (int)codes[index].operand == (int)NetInfo.ConnectGroup.AllGroups &&
codes[index + 1].opcode == OpCodes.And && codes[index + 2].opcode == OpCodes.Brfalse)
{
var labelIfFalse = codes[index + 2].operand;
var insertionPosition = index + 3;
// && NetNodeRenderPatch.ShouldRenderBendNodeLod(nodeID, node5)
var renderCheckInstructions = new[]
{
new CodeInstruction(OpCodes.Ldarg_1), // nodeID
new CodeInstruction(node5LocalVarLdLoc),
new CodeInstruction(OpCodes.Call, netNodeRenderPatchShouldRenderBendNodeLodMethod),
new CodeInstruction(OpCodes.Brfalse, labelIfFalse),
};
renderCheckInstructions[0].labels.AddRange(codes[insertionPosition].labels);
codes[insertionPosition].labels.Clear();
codes.InsertRange(insertionPosition, renderCheckInstructions);
TranspilerUtils.LogDebug("Bend render check inserted");
index = insertionPosition + renderCheckInstructions.Length;
bendRenderCheckInserted = true;
break;
}
}
if (!bendRenderCheckInserted)
{
Debug.LogError("NetNodeGroupDataPatch: Bend render check not inserted. Cancelling transpiler!");
return(originalCodes);
}
return(codes);
}
public static IEnumerable <CodeInstruction> Transpiler(ILGenerator il, IEnumerable <CodeInstruction> instructions)
{
var netNodeRefreshEndDataMethod =
typeof(global::NetNode).GetMethod("RefreshEndData", BindingFlags.NonPublic | BindingFlags.Instance);
var netNodeGetSegmentMethod = typeof(global::NetNode).GetMethod("GetSegment");
var netInfoNodesField = typeof(NetInfo).GetField("m_nodes");
var netNodeRenderPatchShouldRenderJunctionNodeMethod =
typeof(NetNodeRenderPatch).GetMethod("ShouldRenderJunctionNode");
var netNodeRenderPatchShouldRenderBendNodeMethod =
typeof(NetNodeRenderPatch).GetMethod("ShouldRenderBendNode");
if (netNodeRefreshEndDataMethod == null || netNodeGetSegmentMethod == null || netInfoNodesField == null || netNodeRenderPatchShouldRenderJunctionNodeMethod == null || netNodeRenderPatchShouldRenderBendNodeMethod == null)
{
Debug.LogError("NetNodeRenderInstancePatch: Necessary methods and field not found. Cancelling transpiler!");
return(instructions);
}
var index = 0;
var originalCodes = new List <CodeInstruction>(instructions);
var codes = new List <CodeInstruction>(originalCodes);
var refreshEndDataCallFound = false;
for (; index < codes.Count; index++)
{
// IL_0066: call instance void NetNode::RefreshEndData(uint16, class NetInfo, uint32, valuetype RenderManager/Instance&)
if (codes[index].opcode == OpCodes.Call && codes[index].operand == netNodeRefreshEndDataMethod)
{
refreshEndDataCallFound = true;
break;
}
}
if (!refreshEndDataCallFound)
{
Debug.LogError("NetNodeRenderInstancePatch: RefreshEndData call not found. Cancelling transpiler!");
return(originalCodes);
}
var junctionFlagCheckFound = false;
for (; index < codes.Count; index++)
{
// if ((flags & Flags.Junction) != 0)
// IL_0077: ldarg.s 'flags'
// IL_0079: ldc.i4 128
if (codes[index].opcode == OpCodes.Ldarg_S && (byte)codes[index].operand == FlagsArgIndex &&
codes[index + 1].opcode == OpCodes.Ldc_I4 && (int)codes[index + 1].operand == (int)global::NetNode.Flags.Junction)
{
junctionFlagCheckFound = true;
break;
}
}
if (!junctionFlagCheckFound)
{
Debug.LogError("NetNodeRenderInstancePatch: junctionFlagCheck not found. Cancelling transpiler!");
return(originalCodes);
}
CodeInstruction segmentLocalVarLdloc = null;
CodeInstruction segment2LocalVarLdloc = null;
CodeInstruction nodeLocalVarLdLoc = null;
for (; index < codes.Count; index++)
{
// IL_009c: call instance uint16 NetNode::GetSegment(int32)
if (codes[index].opcode == OpCodes.Call && codes[index].operand == netNodeGetSegmentMethod && TranspilerUtils.IsStLoc(codes[index + 1]))
{
// IL_00a1: stloc.0
segmentLocalVarLdloc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 1]);
index += 2;
break;
}
}
for (; index < codes.Count; index++)
{
// IL_00ac: call instance uint16 NetNode::GetSegment(int32)
if (codes[index].opcode == OpCodes.Call && codes[index].operand == netNodeGetSegmentMethod && TranspilerUtils.IsStLoc(codes[index + 1]))
{
// IL_00b1: stloc.1
segment2LocalVarLdloc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 1]);
index += 2;
break;
}
}
for (; index < codes.Count; index++)
{
// IL_013e: ldfld class NetInfo/Node[] NetInfo::m_nodes
if (codes[index].opcode == OpCodes.Ldfld && codes[index].operand == netInfoNodesField && TranspilerUtils.IsStLoc(codes[index + 3]))
{
// IL_0146: stloc.s 6
nodeLocalVarLdLoc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 3]);
index += 4;
break;
}
}
if (segmentLocalVarLdloc == null || segment2LocalVarLdloc == null || nodeLocalVarLdLoc == null)
{
Debug.LogError("NetNodeRenderInstancePatch: Necessary field for junction not found. Cancelling transpiler!");
Debug.LogError($"{segmentLocalVarLdloc}, {segment2LocalVarLdloc}, {nodeLocalVarLdLoc}");
return(originalCodes);
}
var junctionRenderCheckInserted = false;
for (; index < codes.Count; index++)
{
// IL_017c: ldc.i4 987135
// IL_0181: and
// IL_0182: brfalse IL_0570
if (codes[index].opcode == OpCodes.Ldc_I4 && (int)codes[index].operand == (int)NetInfo.ConnectGroup.AllGroups &&
codes[index + 1].opcode == OpCodes.And && codes[index + 2].opcode == OpCodes.Brfalse)
{
var labelIfFalse = codes[index + 2].operand;
var insertionPosition = index + 3;
// && NetNodeRenderPatch.NetNodeRenderPatch(node, segment, segment2)
// IL_01FD: ldloc.s V_6
// IL_01FF: ldloc.0
// IL_0200: ldloc.1
// IL_0201: call bool[NetworkSkins] NetworkSkins.Patches.NetNodeRenderPatch::ShouldRenderJunctionNode(class NetInfo/Node, uint16, uint16)
// IL_0206: brfalse.s IL_024A
var renderCheckInstructions = new[]
{
new CodeInstruction(nodeLocalVarLdLoc),
new CodeInstruction(segmentLocalVarLdloc),
new CodeInstruction(segment2LocalVarLdloc),
new CodeInstruction(OpCodes.Call, netNodeRenderPatchShouldRenderJunctionNodeMethod),
new CodeInstruction(OpCodes.Brfalse, labelIfFalse),
};
renderCheckInstructions[0].labels.AddRange(codes[insertionPosition].labels);
codes[insertionPosition].labels.Clear();
codes.InsertRange(insertionPosition, renderCheckInstructions);
TranspilerUtils.LogDebug("Junction render check inserted");
index = insertionPosition + renderCheckInstructions.Length;
junctionRenderCheckInserted = true;
break;
}
}
if (!junctionRenderCheckInserted)
{
Debug.LogError("NetNodeRenderInstancePatch: Render check 1 not inserted. Cancelling transpiler!");
return(originalCodes);
}
var bendFlagCheckFound = false;
for (; index < codes.Count; index++)
{
// else if ((flags & Flags.Bend) != 0)
// IL_0e28: ldarg.s 'flags'
// IL_0e2a: ldc.i4.s 64
if (codes[index].opcode == OpCodes.Ldarg_S && (byte)codes[index].operand == FlagsArgIndex &&
codes[index + 1].opcode == OpCodes.Ldc_I4_S && (sbyte)codes[index + 1].operand == (sbyte)global::NetNode.Flags.Bend)
{
bendFlagCheckFound = true;
break;
}
}
if (!bendFlagCheckFound)
{
Debug.LogError("NetNodeRenderInstancePatch: bendFlagCheck not found. Cancelling transpiler!");
return(originalCodes);
}
CodeInstruction segment5LocalVarLdloc = null;
CodeInstruction segment6LocalVarLdloc = null;
CodeInstruction node4LocalVarLdLoc = null;
for (; index < codes.Count; index++)
{
// IL_11ae: call instance uint16 NetNode::GetSegment(int32)
if (codes[index].opcode == OpCodes.Call && codes[index].operand == netNodeGetSegmentMethod && TranspilerUtils.IsStLoc(codes[index + 1]))
{
// IL_00a1: stloc.s 32
segment5LocalVarLdloc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 1]);
index += 2;
break;
}
}
for (; index < codes.Count; index++)
{
// IL_11bf: call instance uint16 NetNode::GetSegment(int32)
if (codes[index].opcode == OpCodes.Call && codes[index].operand == netNodeGetSegmentMethod && TranspilerUtils.IsStLoc(codes[index + 1]))
{
// IL_11c4: stloc.s 33
segment6LocalVarLdloc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 1]);
index += 2;
break;
}
}
for (; index < codes.Count; index++)
{
// IL_120d: ldfld class NetInfo/Node[] NetInfo::m_nodes
if (codes[index].opcode == OpCodes.Ldfld && codes[index].operand == netInfoNodesField && TranspilerUtils.IsStLoc(codes[index + 3]))
{
// IL_1215: stloc.s 35
node4LocalVarLdLoc = TranspilerUtils.BuildLdLocFromStLoc(codes[index + 3]);
index += 4;
break;
}
}
if (segment5LocalVarLdloc == null || segment6LocalVarLdloc == null || node4LocalVarLdLoc == null)
{
Debug.LogError("NetNodeRenderInstancePatch: Necessary field for bend not found. Cancelling transpiler!");
Debug.LogError($"{segment5LocalVarLdloc} {segment6LocalVarLdloc} {node4LocalVarLdLoc}");
return(originalCodes);
}
var bendRenderCheckInserted = false;
for (; index < codes.Count; index++)
{
// IL_124b: ldc.i4 987135
// IL_1250: and
// IL_1251: brfalse IL_1637
if (codes[index].opcode == OpCodes.Ldc_I4 && (int)codes[index].operand == (int)NetInfo.ConnectGroup.AllGroups &&
codes[index + 1].opcode == OpCodes.And && codes[index + 2].opcode == OpCodes.Brfalse)
{
var labelIfFalse = codes[index + 2].operand;
var insertionPosition = index + 3;
// ldloc.s 35
// ldloc.s 32
// ldloc.s 33
// call bool[NetworkSkins] NetworkSkins.Patches.NetNodeRenderPatch::ShouldRenderJunctionNode(class NetInfo/Node, uint16, uint16)
// brfalse.s IL_1637
var renderCheckInstructions = new[]
{
new CodeInstruction(node4LocalVarLdLoc),
new CodeInstruction(segment5LocalVarLdloc),
new CodeInstruction(segment6LocalVarLdloc),
new CodeInstruction(OpCodes.Call, netNodeRenderPatchShouldRenderBendNodeMethod),
new CodeInstruction(OpCodes.Brfalse, labelIfFalse),
};
renderCheckInstructions[0].labels.AddRange(codes[insertionPosition].labels);
codes[insertionPosition].labels.Clear();
codes.InsertRange(insertionPosition, renderCheckInstructions);
TranspilerUtils.LogDebug("Bend render check inserted");
index = insertionPosition + renderCheckInstructions.Length;
bendRenderCheckInserted = true;
break;
}
}
if (!bendRenderCheckInserted)
{
Debug.LogError("NetNodeRenderInstancePatch: Bend render check not inserted. Cancelling transpiler!");
return(originalCodes);
}
return(codes);
}