64 lines
2.5 KiB
C#
64 lines
2.5 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Reflection.Emit;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using HarmonyLib;
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using rjw;
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namespace RJW_Genes
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{
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/// <summary>
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/// This Class patches the RJW-Mechbirth to not deal damage when the pawn has the MechBreeder Gene.
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/// This harmony patch was kindly provided by 'shabalox' https://github.com/Shabalox/RJW_Genes_Addons/
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/// </summary>
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[HarmonyPatch(typeof(Hediff_MechanoidPregnancy), "GiveBirth")]
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public static class PatchMechBirth
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{
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[HarmonyTranspiler]
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public static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> instructions, ILGenerator il)
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{
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bool found_call = false;
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bool found_skip = false;
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Label skip_label = il.DefineLabel();
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MethodInfo ismechbreeder = AccessTools.Method(typeof(GeneUtility), "IsMechbreeder");
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foreach (CodeInstruction codeInstruction in instructions)
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{
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//Check if the first opcode after endfinally ldloc_0 is and in that case add the label to skip the code
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if (found_skip && codeInstruction.opcode == OpCodes.Ldloc_0)
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{
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codeInstruction.labels.Add(skip_label);
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}
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found_skip = false;
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if (codeInstruction.opcode == OpCodes.Endfinally)
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{
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found_skip = true;
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}
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yield return codeInstruction;
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if (codeInstruction.opcode == OpCodes.Call)
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{
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if (codeInstruction.operand.ToString() == "Boolean TryMakeFilth(Verse.IntVec3, Verse.Map, Verse.ThingDef, System.String, Int32, RimWorld.FilthSourceFlags)")
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{
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found_call = true;
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}
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}
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//Triggers after the pop opcode (after generating filth in c#).
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else if (found_call)
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{
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//Load pawn, call function to check if a mechbreeder, and skip past the part which does damage
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yield return new CodeInstruction(OpCodes.Ldloc_0, null);
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yield return new CodeInstruction(OpCodes.Call, ismechbreeder);
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yield return new CodeInstruction(OpCodes.Brtrue_S, skip_label);
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found_call = false;
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}
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}
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yield break;
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}
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}
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} |