Added actual file

This commit is contained in:
Diavolo 2021-12-22 21:36:55 +01:00
parent d5d9e27cca
commit 8deae532de

View File

@ -0,0 +1,72 @@
#include <std_include.hpp>
#include "loader/component_loader.hpp"
#include "game/game.hpp"
#include "game/dvars.hpp"
#include <utils/hook.hpp>
namespace gameplay
{
namespace
{
utils::hook::detour pm_player_trace_hook;
void pm_player_trace_stub(game::pmove_t* pm, game::trace_t* trace, const float* f3,
const float* f4, const game::Bounds* bounds, int a6, int a7)
{
pm_player_trace_hook.invoke<void>(pm, trace, f3, f4, bounds, a6, a7);
// By setting startsolid to false we allow the player to clip through solid objects above their head
if (dvars::g_enableElevators->current.enabled)
{
trace->startsolid = false;
}
}
void pm_trace_stub(utils::hook::assembler& a)
{
const auto stand = a.newLabel();
const auto allsolid = a.newLabel();
a.call(rsi); // Game code
a.push(rax);
a.mov(rax, qword_ptr(reinterpret_cast<int64_t>(&dvars::g_enableElevators)));
a.mov(al, byte_ptr(rax, 0x10));
a.cmp(al, 1);
a.pop(rax);
a.jz(stand); // Always stand up
a.cmp(byte_ptr(rsp, 0x89), 0); // Game code trace[0].allsolid == false
a.jnz(allsolid);
a.bind(stand);
a.jmp(0x6878CD_b);
a.bind(allsolid);
a.jmp(0x6878D4_b);
}
}
class component final : public component_interface
{
public:
void post_unpack() override
{
dvars::g_enableElevators = dvars::register_bool("g_enableElevators", false,
game::DvarFlags::DVAR_FLAG_NONE, true);
// Influence PM_JitterPoint code flow so the trace->startsolid checks are 'ignored'
pm_player_trace_hook.create(0x068F0A0_b, &pm_player_trace_stub);
// If g_enableElevators is 1 the 'ducked' flag will always be removed from the player state
utils::hook::jump(0x6878C1_b, utils::hook::assemble(pm_trace_stub), true);
}
};
}
REGISTER_COMPONENT(gameplay::component)