87 lines
3.4 KiB
C#
87 lines
3.4 KiB
C#
using Dalamud.Plugin;
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using System;
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using System.Diagnostics.CodeAnalysis;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace Macrology {
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public class GameFunctions {
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private Macrology Plugin { get; }
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private delegate IntPtr GetUiModuleDelegate(IntPtr basePtr);
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private delegate void EasierProcessChatBoxDelegate(IntPtr uiModule, IntPtr message, IntPtr unused, byte a4);
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private readonly GetUiModuleDelegate _getUiModule;
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private readonly EasierProcessChatBoxDelegate _easierProcessChatBox;
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private readonly IntPtr _uiModulePtr;
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public GameFunctions(Macrology plugin) {
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this.Plugin = plugin ?? throw new ArgumentNullException(nameof(plugin), "Plugin cannot be null");
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var getUiModulePtr = this.Plugin.Interface.TargetModuleScanner.ScanText("E8 ?? ?? ?? ?? 48 83 7F ?? 00 48 8B F0");
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var easierProcessChatBoxPtr = this.Plugin.Interface.TargetModuleScanner.ScanText("48 89 5C 24 ?? 57 48 83 EC 20 48 8B FA 48 8B D9 45 84 C9");
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this._uiModulePtr = this.Plugin.Interface.TargetModuleScanner.GetStaticAddressFromSig("48 8B 0D ?? ?? ?? ?? 48 8D 54 24 ?? 48 83 C1 10 E8 ?? ?? ?? ??");
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if (getUiModulePtr == IntPtr.Zero || easierProcessChatBoxPtr == IntPtr.Zero || this._uiModulePtr == IntPtr.Zero) {
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PluginLog.Log($"getUIModulePtr: {getUiModulePtr.ToInt64():x}");
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PluginLog.Log($"easierProcessChatBoxPtr: {easierProcessChatBoxPtr.ToInt64():x}");
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PluginLog.Log($"this.uiModulePtr: {this._uiModulePtr.ToInt64():x}");
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throw new ApplicationException("Got null pointers for game signature(s)");
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}
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this._getUiModule = Marshal.GetDelegateForFunctionPointer<GetUiModuleDelegate>(getUiModulePtr);
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this._easierProcessChatBox = Marshal.GetDelegateForFunctionPointer<EasierProcessChatBoxDelegate>(easierProcessChatBoxPtr);
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}
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public void ProcessChatBox(string message) {
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var uiModule = this._getUiModule(Marshal.ReadIntPtr(this._uiModulePtr));
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if (uiModule == IntPtr.Zero) {
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throw new ApplicationException("uiModule was null");
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}
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using var payload = new ChatPayload(message);
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var mem1 = Marshal.AllocHGlobal(400);
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Marshal.StructureToPtr(payload, mem1, false);
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this._easierProcessChatBox(uiModule, mem1, IntPtr.Zero, 0);
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Marshal.FreeHGlobal(mem1);
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}
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}
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[StructLayout(LayoutKind.Explicit)]
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[SuppressMessage("ReSharper", "PrivateFieldCanBeConvertedToLocalVariable")]
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internal readonly struct ChatPayload : IDisposable {
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[FieldOffset(0)]
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private readonly IntPtr textPtr;
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[FieldOffset(16)]
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private readonly ulong textLen;
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[FieldOffset(8)]
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private readonly ulong unk1;
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[FieldOffset(24)]
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private readonly ulong unk2;
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internal ChatPayload(string text) {
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var stringBytes = Encoding.UTF8.GetBytes(text);
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this.textPtr = Marshal.AllocHGlobal(stringBytes.Length + 30);
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Marshal.Copy(stringBytes, 0, this.textPtr, stringBytes.Length);
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Marshal.WriteByte(this.textPtr + stringBytes.Length, 0);
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this.textLen = (ulong) (stringBytes.Length + 1);
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this.unk1 = 64;
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this.unk2 = 0;
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}
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public void Dispose() {
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Marshal.FreeHGlobal(this.textPtr);
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}
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}
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}
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