Rim/iw5-mod
Rim/iw5-mod
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Add infinite ammo dvar

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This commit is contained in:
FutureRave 2022-03-11 20:43:11 +00:00
parent 418f79045e
commit cd9e0ec159
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GPG Key ID: E883E2BC9657D955
5 changed files with 139 additions and 0 deletions
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8
src/game/game.cpp
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@ -13,6 +13,8 @@ namespace game
DB_LoadXAssets_t DB_LoadXAssets;
Dvar_RegisterBool_t Dvar_RegisterBool;
Dvar_SetIntByName_t Dvar_SetIntByName;
Dvar_SetFromStringByName_t Dvar_SetFromStringByName;
@ -57,6 +59,8 @@ namespace game
SEH_LocalizeTextMessage_t SEH_LocalizeTextMessage;
PM_WeaponUseAmmo_t PM_WeaponUseAmmo;
decltype(longjmp)* _longjmp;
CmdArgs* sv_cmd_args;
@ -602,6 +606,8 @@ namespace game
native::DB_LoadXAssets = native::DB_LoadXAssets_t(SELECT_VALUE(0x48A8E0, 0x4CD020, 0x44F770));
native::Dvar_RegisterBool = native::Dvar_RegisterBool_t(SELECT_VALUE(0x4914D0, 0x5BE9F0, 0x0));
native::Dvar_SetIntByName = native::Dvar_SetIntByName_t(SELECT_VALUE(0x5396B0, 0x5BF560, 0x0));
native::Dvar_SetFromStringByName = native::Dvar_SetFromStringByName_t(
@ -650,6 +656,8 @@ namespace game
native::SEH_LocalizeTextMessage = native::SEH_LocalizeTextMessage_t(
SELECT_VALUE(0x41EA20, 0x57E240, 0x0));
native::PM_WeaponUseAmmo = native::PM_WeaponUseAmmo_t(SELECT_VALUE(0x463F80, 0x42E930, 0x0));
native::_longjmp = reinterpret_cast<decltype(longjmp)*>(SELECT_VALUE(0x73AC20, 0x7363BC, 0x655558));
native::sv_cmd_args = reinterpret_cast<native::CmdArgs*>(SELECT_VALUE(0x1757218, 0x1CAA998, 0x1B5E7D8));

7
src/game/game.hpp
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@ -23,6 +23,10 @@ namespace game
typedef void (*DB_LoadXAssets_t)(XZoneInfo* zoneInfo, unsigned int zoneCount, int sync);
extern DB_LoadXAssets_t DB_LoadXAssets;
typedef const dvar_t* (*Dvar_RegisterBool_t)(const char* dvarName, bool value,
unsigned __int16 flags, const char* description);
extern Dvar_RegisterBool_t Dvar_RegisterBool;
typedef void (*Dvar_SetIntByName_t)(const char* dvarName, int value);
extern Dvar_SetIntByName_t Dvar_SetIntByName;
@ -89,6 +93,9 @@ namespace game
typedef char* (*SEH_LocalizeTextMessage_t)(const char* pszInputBuffer, const char* pszMessageType, msgLocErrType_t errType);
extern SEH_LocalizeTextMessage_t SEH_LocalizeTextMessage;
typedef void (*PM_WeaponUseAmmo_t)(playerState_s* ps, const Weapon weapon, bool isAlternate, int amount, PlayerHandIndex hand);
extern PM_WeaponUseAmmo_t PM_WeaponUseAmmo;
extern decltype(longjmp)* _longjmp;
constexpr auto CMD_MAX_NESTING = 8;

52
src/game/structs.hpp
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@ -533,6 +533,31 @@ namespace game
const char* name;
};
enum dvar_flags : std::uint16_t
{
DVAR_ARCHIVE = 0x1,
DVAR_CHEAT = 0x4,
DVAR_CODINFO = 0x8,
DVAR_SCRIPTINFO = 0x10,
DVAR_SERVERINFO = 0x400,
DVAR_WRITEPROTECTED = 0x800,
DVAR_READONLY = 0x2000,
}; // Incomplete
enum dvar_type : std::int8_t
{
DVAR_TYPE_BOOL = 0x0,
DVAR_TYPE_FLOAT = 0x1,
DVAR_TYPE_FLOAT_2 = 0x2,
DVAR_TYPE_FLOAT_3 = 0x3,
DVAR_TYPE_FLOAT_4 = 0x4,
DVAR_TYPE_INT = 0x5,
DVAR_TYPE_ENUM = 0x6,
DVAR_TYPE_STRING = 0x7,
DVAR_TYPE_COLOR = 0x8,
DVAR_TYPE_FLOAT_3_COLOR = 0x9,
};
union DvarValue
{
bool enabled;
@ -610,6 +635,33 @@ namespace game
static_assert(sizeof(usercmd_s) == 0x2C);
enum PlayerHandIndex
{
WEAPON_HAND_RIGHT = 0,
WEAPON_HAND_LEFT = 1,
NUM_WEAPON_HANDS = 2,
WEAPON_HAND_DEFAULT = 0,
};
struct Weapon_s
{
unsigned int padding : 8;
unsigned int scopeVariation : 3;
unsigned int weaponOthers : 4;
unsigned int weaponUnderBarrels : 2;
unsigned int weaponScopes : 3;
unsigned int weaponIdx : 8;
unsigned int weaponVariation : 4;
};
union Weapon
{
Weapon_s _s_0;
unsigned int data;
};
static_assert(sizeof(Weapon) == 4);
struct playerState_s
{
unsigned char __pad0[0x4EC];

51
src/module/player_movement.cpp Normal file
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@ -0,0 +1,51 @@
#include <std_include.hpp>
#include "player_movement.hpp"
#include "utils/hook.hpp"
const game::native::dvar_t* player_movement::player_sustainAmmo;
void player_movement::post_load()
{
if (game::is_mp()) this->patch_mp();
else if (game::is_sp()) this->patch_sp();
}
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);
}
}
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()
{
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();
}
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();
}
REGISTER_MODULE(player_movement);

21
src/module/player_movement.hpp Normal file
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@ -0,0 +1,21 @@
#pragma once
#include "loader/module_loader.hpp"
#include "game/game.hpp"
class player_movement final : public module
{
public:
void post_load() override;
private:
static const game::native::dvar_t* player_sustainAmmo;
static void pm_weapon_use_ammo(game::native::playerState_s* ps, const game::native::Weapon weapon,
bool isAlternate, int amount, game::native::PlayerHandIndex hand);
static const game::native::dvar_t* dvar_register_player_sustain_ammo(const char* dvar_name,
bool value, unsigned __int16 flags, const char* description);
static void patch_mp();
static void patch_sp();
};