iw7-mod/src/client/component/thirdperson.cpp
2024-07-10 03:17:09 +03:00

108 lines
2.8 KiB
C++

#include <std_include.hpp>
#include "loader/component_loader.hpp"
#include "game/game.hpp"
#include "game/dvars.hpp"
#include "scheduler.hpp"
#include <utils/hook.hpp>
namespace thirdperson
{
namespace
{
void* cg_offset_third_person_view_stub()
{
return utils::hook::assemble([](utils::hook::assembler& a)
{
a.push(rax);
a.mov(rax, qword_ptr(reinterpret_cast<int64_t>(&dvars::cg_thirdPersonAngle)));
a.movss(xmm11, dword_ptr(rax, 0x10));
a.mov(rax, qword_ptr(reinterpret_cast<int64_t>(&dvars::cg_thirdPersonRange)));
a.movss(xmm10, dword_ptr(rax, 0x10));
a.pop(rax);
// original code
a.mulss(xmm7, xmm0);
a.mulss(xmm6, xmm0);
a.addss(xmm7, qword_ptr(rdi));
a.jmp(0x140274596);
});
}
void* cg_offset_chase_cam_view_stub()
{
return utils::hook::assemble([](utils::hook::assembler& a)
{
a.push(rax);
a.mov(rax, qword_ptr(reinterpret_cast<int64_t>(&dvars::cg_thirdPersonAngle)));
a.movss(xmm8, dword_ptr(rax, 0x10));
a.mov(rax, qword_ptr(reinterpret_cast<int64_t>(&dvars::cg_thirdPersonRange)));
a.movss(xmm7, dword_ptr(rax, 0x10));
a.pop(rax);
// original code
a.mulss(xmm2, xmm2);
a.mulss(xmm3, xmm3);
a.addss(xmm2, xmm3);
a.jmp(0x140272069);
});
}
utils::hook::detour cg_should_render_third_person_hook;
int cg_should_render_third_person_stub(int localClientNum, game::cg_s* cgameGlob)
{
auto result = cg_should_render_third_person_hook.invoke<int>(localClientNum, cgameGlob);
if (!result && cgameGlob->predictedPlayerState.pm_type != 3)
{
result = static_cast<int>(dvars::cg_thirdPerson->current.enabled);
if (result)
{
cgameGlob->m_deathCameraFailsafeLock = false; // disable this, acts up for some reason
}
}
return result;
}
}
class component final : public component_interface
{
public:
void post_unpack() override
{
if (game::environment::is_dedi())
{
return;
}
scheduler::once([]()
{
dvars::cg_thirdPerson = game::Dvar_RegisterBool("cg_thirdPerson", false, game::DVAR_FLAG_CHEAT, "Use third person view");
dvars::cg_thirdPersonAngle = game::Dvar_RegisterFloat("cg_thirdPersonAngle", 356.0f, -180.0f, 360.0f, game::DVAR_FLAG_CHEAT,
"The angle of the camera from the player in third person view");
dvars::cg_thirdPersonRange = game::Dvar_RegisterFloat("cg_thirdPersonRange", 120.0f, 0.0f, 1024, game::DVAR_FLAG_CHEAT,
"The range of the camera from the player in third person view");
}, scheduler::main);
utils::hook::jump(0x14027205D, cg_offset_chase_cam_view_stub(), true);
utils::hook::jump(0x14027458A, cg_offset_third_person_view_stub(), true);
cg_should_render_third_person_hook.create(0x140275B50, cg_should_render_third_person_stub);
}
};
}
REGISTER_COMPONENT(thirdperson::component)