238 lines
7.4 KiB
C++
238 lines
7.4 KiB
C++
#include <std_include.hpp>
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#include "loader/component_loader.hpp"
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#include "dvars.hpp"
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#include "game/game.hpp"
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#include "game/dvars.hpp"
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#include <utils/nt.hpp>
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#include <utils/hook.hpp>
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#include <utils/flags.hpp>
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namespace gameplay
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{
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namespace
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{
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utils::hook::detour pm_weapon_use_ammo_hook;
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utils::hook::detour pm_player_trace_hook;
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utils::hook::detour pm_crashland_hook;
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utils::hook::detour jump_apply_slowdown_hook;
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utils::hook::detour stuck_in_client_hook;
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utils::hook::detour cm_transformed_capsule_trace_hook;
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game::dvar_t* jump_slowDownEnable;
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game::dvar_t* jump_enableFallDamage;
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void jump_apply_slowdown_stub(game::mp::playerState_s* ps)
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{
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if (jump_slowDownEnable->current.enabled)
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{
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jump_apply_slowdown_hook.invoke<void>(ps);
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}
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}
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void stuck_in_client_stub(void* entity)
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{
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if (dvars::g_playerEjection->current.enabled)
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{
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stuck_in_client_hook.invoke<void>(entity);
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}
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}
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void cm_transformed_capsule_trace_stub(game::trace_t* results, const float* start, const float* end,
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game::Bounds* bounds, game::Bounds* capsule, int contents, const float* origin, const float* angles)
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{
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if (dvars::g_playerCollision->current.enabled)
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{
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cm_transformed_capsule_trace_hook.invoke<void>(results, start, end,
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bounds, capsule, contents, origin, angles);
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}
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}
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void pm_crashland_stub(game::mp::playerState_s* ps, void* pml)
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{
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if (jump_enableFallDamage->current.enabled)
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{
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pm_crashland_hook.invoke<void>(ps, pml);
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}
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}
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void pm_weapon_use_ammo_stub(game::playerState_s* ps, game::Weapon weapon,
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bool is_alternate, int amount, game::PlayerHandIndex hand)
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{
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if (!dvars::player_sustainAmmo->current.enabled)
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{
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pm_weapon_use_ammo_hook.invoke<void>(ps, weapon, is_alternate, amount, hand);
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}
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}
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void* pm_bouncing_stub_mp()
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{
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return utils::hook::assemble([](utils::hook::assembler& a)
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{
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const auto no_bounce = a.newLabel();
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const auto loc_2D395D = a.newLabel();
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a.push(rax);
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a.mov(rax, qword_ptr(reinterpret_cast<int64_t>(&dvars::pm_bouncing)));
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a.mov(al, byte_ptr(rax, 0x10));
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a.cmp(byte_ptr(rbp, -0x7D), al);
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a.pop(rax);
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a.jz(no_bounce);
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a.jmp(0x2D39C0_b);
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a.bind(no_bounce);
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a.cmp(dword_ptr(rsp, 0x44), 0);
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a.jnz(loc_2D395D);
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a.jmp(0x2D39B1_b);
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a.bind(loc_2D395D);
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a.jmp(0x2D395D_b);
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});
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}
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void* g_speed_stub()
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{
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return utils::hook::assemble([](utils::hook::assembler& a)
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{
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a.mov(rax, qword_ptr(reinterpret_cast<int64_t>(&dvars::g_speed)));
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a.mov(eax, dword_ptr(rax, 0x10));
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// original code
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a.mov(dword_ptr(r14, 0x36), ax);
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a.movzx(eax, word_ptr(r14, 0x3A));
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a.jmp(0x4006BC_b);
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});
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}
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void* client_end_frame_stub()
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{
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return utils::hook::assemble([](utils::hook::assembler& a)
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{
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a.push(rax);
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a.mov(rax, qword_ptr(reinterpret_cast<int64_t>(&dvars::g_gravity)));
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a.mov(eax, dword_ptr(rax, 0x10));
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a.mov(word_ptr(rbx, 0x34), ax);
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a.pop(rax);
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// Game code hook skipped
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a.mov(eax, dword_ptr(rbx, 0x495C));
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a.mov(rdi, rcx);
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a.jmp(0x3FF822_b);
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});
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}
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void pm_player_trace_stub(game::pmove_t* pm, game::trace_t* trace, const float* f3,
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const float* f4, const game::Bounds* bounds, int a6, int a7)
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{
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pm_player_trace_hook.invoke<void>(pm, trace, f3, f4, bounds, a6, a7);
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// By setting startsolid to false we allow the player to clip through solid objects above their head
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if (dvars::g_enableElevators->current.enabled)
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{
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trace->startsolid = false;
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}
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}
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void pm_trace_stub(utils::hook::assembler& a)
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{
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const auto stand = a.newLabel();
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const auto allsolid = a.newLabel();
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a.call(rsi); // Game code
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a.push(rax);
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a.mov(rax, qword_ptr(reinterpret_cast<int64_t>(&dvars::g_enableElevators)));
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a.mov(al, byte_ptr(rax, 0x10));
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a.cmp(al, 1);
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a.pop(rax);
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a.jz(stand); // Always stand up
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a.cmp(byte_ptr(rsp, 0x89), 0); // Game code trace[0].allsolid == false
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a.jnz(allsolid);
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a.bind(stand);
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a.and_(dword_ptr(r15, 0x54), 0xFFFFFFFD);
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a.jmp(0x2C9F9D_b);
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a.bind(allsolid);
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a.jmp(0x2C9F9F_b);
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};
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}
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class component final : public component_interface
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{
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public:
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void post_unpack() override
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{
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if (game::environment::is_sp())
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{
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return;
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}
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dvars::player_sustainAmmo = dvars::register_bool("player_sustainAmmo", false,
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game::DVAR_FLAG_REPLICATED, "Firing weapon will not decrease clip ammo");
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pm_weapon_use_ammo_hook.create(0x2DF830_b, &pm_weapon_use_ammo_stub);
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utils::hook::nop(0x4006AD_b, 15);
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utils::hook::jump(0x4006AD_b, g_speed_stub(), true);
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dvars::g_speed = dvars::register_int("g_speed", 190, 0, 1000,
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game::DVAR_FLAG_REPLICATED, "changes the speed of the player");
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dvars::pm_bouncing = dvars::register_bool("pm_bouncing", false,
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game::DVAR_FLAG_REPLICATED, "Enable bouncing");
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utils::hook::jump(0x2D39A4_b, pm_bouncing_stub_mp(), true);
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dvars::g_gravity = dvars::register_int("g_gravity", 800, 0, 1000, game::DVAR_FLAG_REPLICATED,
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"Game gravity in inches per second squared");
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utils::hook::jump(0x3FF812_b, client_end_frame_stub(), true);
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utils::hook::nop(0x3FF808_b, 1);
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/*
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// Influence PM_JitterPoint code flow so the trace->startsolid checks are 'ignored'
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pm_player_trace_hook.create(0x2D14C0_b, &pm_player_trace_stub);
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// If g_enableElevators is 1 the 'ducked' flag will always be removed from the player state
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utils::hook::jump(0x2C9F90_b, utils::hook::assemble(pm_trace_stub), true);
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dvars::g_enableElevators = dvars::register_bool("g_enableElevators", false, game::DvarFlags::DVAR_FLAG_NONE, "Enables Elevators");
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auto* timescale = dvars::register_float("timescale", 1.0f, 0.1f, 50.0f, game::DVAR_FLAG_REPLICATED, "Changes Timescale of the game");
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utils::hook::inject(0x15B204_b, ×cale->current.value); // Com_GetTimeScale
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utils::hook::inject(0x17D241_b, ×cale->current.value); // Com_Restart
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utils::hook::inject(0x17E609_b, ×cale->current.value); // Com_SetSlowMotion
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utils::hook::inject(0x17E626_b, ×cale->current.value); // Com_SetSlowMotion
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utils::hook::inject(0x17E69C_b, ×cale->current.value); // Com_SetSlowMotion
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// utils::hook::inject(0x1400DB9CC, ×cale->current.value); // Com_ErrorCleanup_Shutdown (Inlined)
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utils::hook::inject(0x17EAD0_b, ×cale->current.value); // Com_TimeScaleMsec (Crash)
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utils::hook::inject(0x17EFE2_b, ×cale->current.value); // Com_UpdateSlowMotion
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utils::hook::inject(0x17F00C_b, ×cale->current.value); // Com_UpdateSlowMotion
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*/
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jump_apply_slowdown_hook.create(0x2BD0B0_b, jump_apply_slowdown_stub);
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jump_slowDownEnable = dvars::register_bool("jump_slowDownEnable", true, game::DVAR_FLAG_REPLICATED, "Slow player movement after jumping");
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pm_crashland_hook.create(0x2CB070_b, pm_crashland_stub);
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jump_enableFallDamage = dvars::register_bool("jump_enableFallDamage", true, game::DVAR_FLAG_REPLICATED, "Enable fall damage");
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dvars::g_playerEjection = dvars::register_bool("g_playerEjection", true, game::DVAR_FLAG_REPLICATED,
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"Flag whether player ejection is on or off");
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stuck_in_client_hook.create(0x4035F0_b, stuck_in_client_stub);
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dvars::g_playerCollision = dvars::register_bool("g_playerCollision", true, game::DVAR_FLAG_REPLICATED,
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"Flag whether player collision is on or off");
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cm_transformed_capsule_trace_hook.create(0x4D63C0_b, cm_transformed_capsule_trace_stub);
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}
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};
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}
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REGISTER_COMPONENT(gameplay::component)
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