bbradson
74 lines
2.7 KiB
C#
74 lines
2.7 KiB
C#
// Copyright (c) 2023 bradson
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at https://mozilla.org/MPL/2.0/.
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using Mono.Cecil;
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using Mono.Cecil.Cil;
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using PerformanceFish.Prepatching;
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namespace PerformanceFish.Events;
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public sealed class ThingGridEvents : ClassWithFishPrepatches
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{
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/// <summary>
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/// Invoked for every thing.Position change, including for motes and pawns
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/// </summary>
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public sealed class RegisterInCellPatch : FishPrepatch
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{
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public override string? Description { get; }
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= "Hook to invoke an event whenever things register in a cell. Does nothing by itself, but certain "
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+ "functions require this.";
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public override bool Enabled => true;
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public override bool ShowSettings => false;
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public override MethodBase TargetMethodBase { get; }
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= AccessTools.DeclaredMethod(typeof(ThingGrid), nameof(ThingGrid.RegisterInCell));
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public static void OnRegistered(ThingGrid __instance, Thing t, in IntVec3 c)
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=> t.Events().OnRegisteredAtThingGrid(t, __instance.map, c);
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public override void Transpiler(ILProcessor ilProcessor, ModuleDefinition module)
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=> ilProcessor.InsertRange(ilProcessor.instructions.FirstIndexOf(static code
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=> code.OpCode == OpCodes.Callvirt
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&& code.Operand is MethodReference { Name: "Add" } method
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&& method.DeclaringType.Name.Contains("List"))
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+ 1,
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OpCodes.Ldarg_0,
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OpCodes.Ldarg_1,
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(OpCodes.Ldarga_S, ilProcessor.Body.GetParameter(2)),
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(OpCodes.Call, methodof(OnRegistered)));
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}
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public sealed class DeregisterInCellPatch : FishPrepatch
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{
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public override string? Description { get; }
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= "Hook to invoke an event whenever things deregister from a cell. Does nothing by itself, but certain "
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+ "functions require this.";
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public override bool Enabled => true;
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public override bool ShowSettings => false;
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public override MethodBase TargetMethodBase { get; }
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= AccessTools.DeclaredMethod(typeof(ThingGrid), nameof(ThingGrid.DeregisterInCell));
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public static void OnDeregistered(ThingGrid __instance, Thing t, in IntVec3 c)
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=> t.Events().OnDeregisteredAtThingGrid(t, __instance.map, c);
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public override void Transpiler(ILProcessor ilProcessor, ModuleDefinition module)
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=> ilProcessor.InsertRange(ilProcessor.instructions.FirstIndexOf(static code
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=> code.OpCode == OpCodes.Callvirt
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&& code.Operand is MethodReference { Name: "Remove" } method
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&& method.DeclaringType.Name.Contains("List"))
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+ 1,
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OpCodes.Ldarg_0,
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OpCodes.Ldarg_1,
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(OpCodes.Ldarga, ilProcessor.Body.GetParameter(2)),
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(OpCodes.Call, methodof(OnDeregistered)));
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}
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public delegate void EventHandler(Thing thing, Map map, in IntVec3 cell);
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} |