WIP

CheatEnabler/WaterPumpPatch.cs

@@ -0,0 +1,62 @@
+using System.Collections.Generic;
+using System.Reflection.Emit;
+using BepInEx.Configuration;
+using HarmonyLib;
+
+namespace CheatEnabler;
+public static class WaterPumperPatch
+{
+    public static ConfigEntry<bool> Enabled;
+    private static Harmony _patch;
+
+    public static void Init()
+    {
+        Enabled.SettingChanged += (_, _) => ValueChanged();
+        ValueChanged();
+    }
+
+    public static void Uninit()
+    {
+        if (_patch == null) return;
+        _patch.UnpatchSelf();
+        _patch = null;
+    }
+
+    private static void ValueChanged()
+    {
+        if (Enabled.Value)
+        {
+            if (_patch != null)
+            {
+                _patch.UnpatchSelf();
+                _patch = null;
+            }
+
+            _patch = Harmony.CreateAndPatchAll(typeof(WaterPumperPatch));
+        }
+        else if (_patch != null)
+        {
+            _patch.UnpatchSelf();
+            _patch = null;
+        }
+    }
+
+    [HarmonyTranspiler]
+    [HarmonyPatch(typeof(BuildTool_BlueprintPaste), "CheckBuildConditions")]
+    [HarmonyPatch(typeof(BuildTool_Click), "CheckBuildConditions")]
+    private static IEnumerable<CodeInstruction> BuildTool_CheckBuildConditions_Transpiler(
+        IEnumerable<CodeInstruction> instructions, ILGenerator generator)
+    {
+        var matcher = new CodeMatcher(instructions, generator);
+        matcher.MatchForward(false,
+            new CodeMatch(instr => instr.opcode == OpCodes.Ldc_I4_S && instr.OperandIs(22))
+        ).Advance(1).MatchForward(false,
+            new CodeMatch(instr => instr.opcode == OpCodes.Ldc_I4_S && instr.OperandIs(22))
+        );
+        matcher.Repeat(codeMatcher =>
+        {
+            codeMatcher.SetAndAdvance(OpCodes.Ldc_I4_S, 0);
+        });
+        return matcher.InstructionEnumeration();
+    }
+}