#include #include "player_movement.hpp" #include "utils/hook.hpp" const game::native::dvar_t* player_movement::player_sustainAmmo; const game::native::dvar_t* player_movement::pm_bounces; const game::native::dvar_t* player_movement::pm_playerEjection; const game::native::dvar_t* player_movement::pm_playerCollision; const game::native::dvar_t* player_movement::pm_rocketJump; const game::native::dvar_t* player_movement::pm_elevators; void player_movement::pm_weapon_use_ammo(game::native::playerState_s* ps, const game::native::Weapon weapon, bool is_alternate, int amount, game::native::PlayerHandIndex hand) { if (!player_movement::player_sustainAmmo->current.enabled) { game::native::PM_WeaponUseAmmo(ps, weapon, is_alternate, amount, hand); } } __declspec(naked) void player_movement::pm_step_slide_move_stub_mp() { __asm { // Check value of pm_bounces push eax mov eax, player_movement::pm_bounces cmp byte ptr [eax + 0xC], 1 pop eax // Bounce if enabled is true je bounce // Code hook skipped cmp dword ptr [esp + 0x24], 0 jnz dontBounce bounce: push 0x424D58 retn dontBounce: push 0x424D6C retn } } __declspec(naked) void player_movement::pm_step_slide_move_stub_sp() { __asm { // Check value of pm_bounces push eax mov eax, player_movement::pm_bounces cmp byte ptr [eax + 0xC], 1 pop eax // Bounce if enabled is true je bounce // Code hook skipped cmp dword ptr [esp + 0x24], 0 jnz dontBounce bounce: push 0x43D91F retn dontBounce: push 0x43D933 retn } } int player_movement::stuck_in_client_stub(game::native::gentity_s* self) { if (player_movement::pm_playerEjection->current.enabled) { return reinterpret_cast(0x4F8930)(self); } return 0; } void player_movement::cm_transformed_capsule_trace_stub(game::native::trace_t* results, const float* start, const float* end, const game::native::Bounds* bounds, const game::native::Bounds* capsule, int contents, const float* origin, const float* angles) { if (player_movement::pm_playerCollision->current.enabled) { game::native::CM_TransformedCapsuleTrace(results, start, end, bounds, capsule, contents, origin, angles); } } game::native::gentity_s* player_movement::weapon_rocket_launcher_fire_stub(game::native::gentity_s* ent, const game::native::Weapon weapon, float spread, game::native::weaponParms* wp, const float* gun_vel, game::native::missileFireParms* fire_parms, game::native::missileFireParms* magic_bullet) { auto* result = game::native::Weapon_RocketLauncher_Fire(ent, weapon, spread, wp, gun_vel, fire_parms, magic_bullet); if (ent->client != nullptr && player_movement::pm_rocketJump->current.enabled) { ent->client->ps.velocity[0] += (0 - wp->forward[0]) * 64.0f; ent->client->ps.velocity[1] += (0 - wp->forward[1]) * 64.0f; ent->client->ps.velocity[2] += (0 - wp->forward[2]) * 64.0f; } return result; } void player_movement::pm_player_trace_stub(game::native::pmove_t* pm, game::native::trace_t* results, const float* start, const float* end, const game::native::Bounds* bounds, int pass_entity_num, int content_mask) { game::native::PM_playerTrace(pm, results, start, end, bounds, pass_entity_num, content_mask); if (player_movement::pm_elevators->current.enabled) { results->startsolid = false; } } void player_movement::pm_trace(const game::native::pmove_t* pm, game::native::trace_t* results, const float* start, const float* end, const game::native::Bounds* bounds, int pass_entity_num, int content_mask) { game::native::PM_trace(pm, results, start, end, bounds, pass_entity_num, content_mask); if (player_movement::pm_elevators->current.enabled) { results->allsolid = false; } } const game::native::dvar_t* player_movement::dvar_register_player_sustain_ammo(const char* dvar_name, bool value, unsigned __int16 /*flags*/, const char* description) { player_movement::player_sustainAmmo = game::native::Dvar_RegisterBool(dvar_name, value, game::native::DVAR_CODINFO, description); return player_movement::player_sustainAmmo; } void player_movement::patch_mp() { player_movement::pm_playerEjection = game::native::Dvar_RegisterBool("pm_playerEjection", true, game::native::DVAR_CODINFO, "Push intersecting players away from each other"); player_movement::pm_rocketJump = game::native::Dvar_RegisterBool("pm_rocketJump", false, game::native::DVAR_CODINFO, "CoD4 rocket jumps"); utils::hook(0x418D9C, &player_movement::dvar_register_player_sustain_ammo, HOOK_CALL).install()->quick(); utils::hook(0x42B5DA, &player_movement::pm_weapon_use_ammo, HOOK_CALL).install()->quick(); utils::hook(0x42B2BD, &player_movement::pm_weapon_use_ammo, HOOK_CALL).install()->quick(); utils::hook(0x42AE95, &player_movement::pm_weapon_use_ammo, HOOK_CALL).install()->quick(); utils::hook(0x424D51, &player_movement::pm_step_slide_move_stub_mp, HOOK_JUMP).install()->quick(); utils::hook(0x4F9EFB, &player_movement::stuck_in_client_stub, HOOK_CALL).install()->quick(); // ClientEndFrame utils::hook(0x57CF45, &player_movement::cm_transformed_capsule_trace_stub, HOOK_CALL).install()->quick(); // SV_ClipMoveToEntity utils::hook(0x482C1B, &player_movement::cm_transformed_capsule_trace_stub, HOOK_CALL).install()->quick(); // CG_ClipMoveToEntity utils::hook(0x530CCB, &player_movement::weapon_rocket_launcher_fire_stub, HOOK_CALL).install()->quick(); // FireWeapon utils::hook(0x422861, &player_movement::pm_player_trace_stub, HOOK_CALL).install()->quick(); // PM_JitterPoint utils::hook(0x4228B5, &player_movement::pm_player_trace_stub, HOOK_CALL).install()->quick(); // PM_JitterPoint utils::hook(0x41F995, &player_movement::pm_trace, HOOK_CALL).install()->quick(); // PM_CheckDuck utils::hook(0x41F8D8, &player_movement::pm_trace, HOOK_CALL).install()->quick(); // PM_CheckDuck utils::hook(0x41F941, &player_movement::pm_trace, HOOK_CALL).install()->quick(); // PM_CheckDuck } void player_movement::patch_sp() { player_movement::player_sustainAmmo = game::native::Dvar_RegisterBool("player_sustainAmmo", false, game::native::DVAR_CODINFO, "Firing weapon will not decrease clip ammo"); utils::hook(0x648C3A, &player_movement::pm_weapon_use_ammo, HOOK_CALL).install()->quick(); utils::hook(0x64891D, &player_movement::pm_weapon_use_ammo, HOOK_CALL).install()->quick(); utils::hook(0x6484E2, &player_movement::pm_weapon_use_ammo, HOOK_CALL).install()->quick(); utils::hook(0x43D918, &player_movement::pm_step_slide_move_stub_sp, HOOK_JUMP).install()->quick(); utils::hook(0x41F9A6, &player_movement::cm_transformed_capsule_trace_stub, HOOK_CALL).install()->quick(); // SV_ClipMoveToEntity utils::hook(0x57B14F, &player_movement::cm_transformed_capsule_trace_stub, HOOK_CALL).install()->quick(); // CG_ClipMoveToEntity utils::hook(0x643F84, &player_movement::pm_player_trace_stub, HOOK_CALL).install()->quick(); // PM_JitterPoint utils::hook(0x643FDB, &player_movement::pm_player_trace_stub, HOOK_CALL).install()->quick(); // PM_JitterPoint utils::hook(0x64181A, &player_movement::pm_trace, HOOK_CALL).install()->quick(); // PM_CheckDuck utils::hook(0x641701, &player_movement::pm_trace, HOOK_CALL).install()->quick(); // PM_CheckDuck utils::hook(0x6417A9, &player_movement::pm_trace, HOOK_CALL).install()->quick(); // PM_CheckDuck } void player_movement::post_load() { // Un-cheat missileMacross. It seems it retained its functionality utils::hook::set(SELECT_VALUE(0x44DFED, 0x50DDDD, 0x48C16F), 0x0); if (game::is_dedi()) { return; } player_movement::pm_bounces = game::native::Dvar_RegisterBool("pm_bounces", false, game::native::dvar_flags::DVAR_CODINFO, "CoD4 Bounces"); player_movement::pm_playerCollision = game::native::Dvar_RegisterBool("pm_playerCollision", true, game::native::DVAR_CODINFO, "Push intersecting players away from each other"); player_movement::pm_elevators = game::native::Dvar_RegisterBool("pm_elevators", false, game::native::DVAR_CODINFO, "CoD4 Elevators"); if (game::is_mp()) this->patch_mp(); else if (game::is_sp()) this->patch_sp(); } REGISTER_MODULE(player_movement);