public override void Enable(GameContext ctx)
{
int off = GetOffset(ctx, "Terraria.Entity", "position");
var ass = AssemblySnippet.FromCode(
new AssemblyCode[] {
Instruction.Create("pushad"),
Instruction.Create($"cmp byte ptr [{ctx.MapFullScreen_Address}],0"),
Instruction.Create("je _rwualfna"),
Instruction.Create($"cmp byte ptr [{ctx.MouseRight_Address}],0"),
Instruction.Create("je _rwualfna"),
Instruction.Create($"cmp byte ptr [{ctx.MouseRightRelease_Address}],0"),
Instruction.Create("je _rwualfna"),
AssemblySnippet.FromCode(
new AssemblyCode[] {
Instruction.Create($"mov byte ptr [{ctx.MapFullScreen_Address}],0"),
Instruction.Create($"mov byte ptr [{ctx.MouseRightRelease_Address}],0"),
AssemblySnippet.FromClrCall(
ctx.GameModuleHelper.GetFunctionAddress("Terraria.Main", "get_LocalPlayer"), false, null, null, null, Array.Empty <object>()),
Instruction.Create("mov ebx,eax"),
Instruction.Create("push eax"),
Instruction.Create("mov dword ptr [esp],2"),
Instruction.Create($"fild dword ptr [{ctx.ScreenWidth_Address}]"),
Instruction.Create("fild dword ptr [esp]"),
Instruction.Create("fdivp"),
Instruction.Create($"fild dword ptr [{ctx.MouseX_Address}]"),
Instruction.Create("fsubp"),
Instruction.Create($"fld dword ptr [{ctx.MapFullScreenScale_Address}]"),
Instruction.Create("fdivp"),
Instruction.Create($"fld dword ptr [{ctx.MapFullscreenPos_Address + 4}]"),
Instruction.Create("fsubrp"),
Instruction.Create("mov dword ptr [esp],16"),
Instruction.Create("fild dword ptr [esp]"),
Instruction.Create("fmulp"),
Instruction.Create($"fstp dword ptr [ebx+{off}]"),
Instruction.Create("mov dword ptr [esp],2"),
Instruction.Create($"fild dword ptr [{ctx.ScreenHeight_Address}]"),
Instruction.Create("fild dword ptr [esp]"),
Instruction.Create("fdivp"),
Instruction.Create($"fild dword ptr [{ctx.MouseY_Address}]"),
Instruction.Create("fsubp"),
Instruction.Create($"fld dword ptr [{ctx.MapFullScreenScale_Address}]"),
Instruction.Create("fdivp"),
Instruction.Create($"fld dword ptr [{ctx.MapFullscreenPos_Address + 8}]"),
Instruction.Create("fsubrp"),
Instruction.Create("mov dword ptr [esp],16"),
Instruction.Create("fild dword ptr [esp]"),
Instruction.Create("fmulp"),
Instruction.Create($"fstp dword ptr [ebx+{off + 0x4}]"),
Instruction.Create("pop eax"),
}),
Instruction.Create("_rwualfna:"),
Instruction.Create("popad")
});
HookParameters ps = new HookParameters(ctx.GameModuleHelper.GetFunctionAddress("Terraria.Main", "Update") + 5, 4096);
InlineHook.Hook(ctx.HContext, ass, ps);
}
/// <summary>
/// Initializes a new instance of the <see cref="EventHook{T}" /> class.
/// </summary>
/// <param name="flags">Options.</param>
/// <param name="key">The key.</param>
/// <param name="args">The arguments.</param>
/// <exception cref="System.ArgumentNullException">argFunc</exception>
public EventHook(EventHookFlags flags, string key, params EventHookParameters <T>[] args) : base(key)
{
if (args == null)
{
throw new ArgumentNullException("args");
}
if (args.Any(q => q.ArgFunc == null))
{
throw new ArgumentNullException("args[].ArgFunc");
}
this.HookFlags = flags;
this.Arguments = args.ToArray();
for (int i = 0; i < this.Arguments.Length; i++)
{
var a = this.Arguments[i];
var p = new HookParameters();
p.Address = a.Address;
int ix = i;
int incl = a.IncludeLength;
if (incl >= 0)
{
p.Before = cpu => EventHook_Action(cpu, ix);
}
else
{
p.After = cpu => EventHook_Action(cpu, ix);
}
p.Pattern = a.Pattern;
p.IncludeLength = Math.Abs(a.IncludeLength);
p.ReplaceLength = a.ReplaceLength;
Memory.WriteHook(p);
}
}
