public Model()
{
var processes = Process.GetProcessesByName("JustCause3");
if (processes.Length == 0)
{
MessageBox.Show("Failed to find JustCause3.exe process", "Error", MessageBoxButton.OK,
MessageBoxImage.Error);
Application.Current.Shutdown(0);
}
_handle = Natives.OpenProcess(
(uint)Natives.ProcessAccessFlags.VMOperation |
(uint)Natives.ProcessAccessFlags.VMRead |
(uint)Natives.ProcessAccessFlags.VMWrite, false, processes[0].Id);
if (_handle == IntPtr.Zero)
{
MessageBox.Show("Failed to open a handle to JustCause3.exe process", "Error", MessageBoxButton.OK,
MessageBoxImage.Error);
Application.Current.Shutdown(0);
}
_originalCallBytes = Natives.ReadBytes(_handle, _setFovCall, 5);
PatchSetFov(true);
}
private void PatchFov(float newFov)
{
var cameraManager = Natives.ReadIntPtr(_handle, _cameraManagerPtr);
var currentCamera = Natives.ReadIntPtr(_handle, cameraManager + CurrentCameraOffset);
// Update the flags to indicate an FOV change has occurred
var flags = Natives.ReadBytes(_handle, currentCamera + CameraFlagsOffset, 1);
flags[0] |= 0x10;
Natives.WriteBytes(_handle, currentCamera + CameraFlagsOffset, flags);
// Update the actual FOV values
Natives.WriteFloat(_handle, currentCamera + FovOffset1, newFov);
Natives.WriteFloat(_handle, currentCamera + FovOffset2, newFov);
}
