amxmodx/modules/hamsandwich/pdata.cpp

161 lines
3.7 KiB
C++
Raw Normal View History

// vim: set ts=4 sw=4 tw=99 noet:
//
// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
// Copyright (C) The AMX Mod X Development Team.
//
// This software is licensed under the GNU General Public License, version 3 or higher.
// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
// https://alliedmods.net/amxmodx-license
//
// Ham Sandwich Module
//
#include "amxxmodule.h"
#include "offsets.h"
#include "ham_utils.h"
#ifdef DONT_TOUCH_THIS_AGAIN_BAIL
#define FM_CHECK_ENTITY(x) \
if (x < 0 || x > gpGlobals->maxEntities) { \
MF_LogError(amx, AMX_ERR_NATIVE, "Entity out of range (%d)", x); \
return 0; \
} else { \
if (x <= gpGlobals->maxClients) { \
if (!MF_IsPlayerIngame(x)) { \
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid player %d (not in-game)", x); \
return 0; \
} \
} else { \
if (x != 0 && FNullEnt(INDEXENT(x))) { \
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid entity %d", x); \
return 0; \
} \
} \
}
#endif
#define FM_CHECK_ENTITY(x) \
if (x < 0 || x > gpGlobals->maxEntities) { \
MF_LogError(amx, AMX_ERR_NATIVE, "Entity out of range (%d)", x); \
return 0; \
} else if (x != 0 && FNullEnt(TypeConversion.id_to_edict(x))) { \
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid entity %d", x); \
return 0; \
}
// Return -1 on null, -2 on invalid, and the the index of any other.
static cell AMX_NATIVE_CALL get_pdata_cbase_safe(AMX *amx, cell *params)
{
int index=params[1];
FM_CHECK_ENTITY(index);
int iOffset=params[2];
#ifdef __linux__
iOffset += params[3];
#elif defined __APPLE__
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 3)
iOffset += params[3];
else
iOffset += params[4];
#endif
if (iOffset <0)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid offset provided. (got: %d)", iOffset);
return 0;
}
void *ptr = get_pdata<void*>(TypeConversion.id_to_edict(index), iOffset * 4); // *4 because macro is char-based and native is int-based.
if (!ptr)
{
return -1;
}
for (int i=0; i<gpGlobals->maxEntities; ++i)
{
if (ptr == TypeConversion.id_to_cbase(i))
{
return i;
}
}
return -2;
}
static cell AMX_NATIVE_CALL get_pdata_cbase(AMX *amx, cell *params)
{
int index=params[1];
FM_CHECK_ENTITY(index);
int iOffset=params[2];
#ifdef __linux__
iOffset += params[3];
#elif defined __APPLE__
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 3)
iOffset += params[3];
else
iOffset += params[4];
#endif
if (iOffset <0)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid offset provided. (got: %d)", iOffset);
return 0;
}
void *ptr = get_pdata<void*>(TypeConversion.id_to_edict(index), iOffset * 4);
return TypeConversion.cbase_to_id(ptr);
}
static cell AMX_NATIVE_CALL set_pdata_cbase(AMX *amx, cell *params)
{
int index=params[1];
FM_CHECK_ENTITY(index);
int target=params[3];
if (target != -1)
{
FM_CHECK_ENTITY(target);
}
int iOffset=params[2];
#ifdef __linux__
iOffset += params[4];
#elif defined __APPLE__
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
iOffset += params[4];
else
iOffset += params[5];
#endif
if (iOffset <0)
{
MF_LogError(amx, AMX_ERR_NATIVE, "Invalid offset provided. (got: %d)", iOffset);
return 0;
}
if (target == -1)
{
set_pdata<void*>(TypeConversion.id_to_edict(index), iOffset * 4, nullptr);
}
else
{
set_pdata<void*>(TypeConversion.id_to_edict(index), iOffset * 4, TypeConversion.id_to_cbase(target));
}
return 1;
}
AMX_NATIVE_INFO pdata_natives_safe[] =
{
{ "get_pdata_cbase_safe", get_pdata_cbase_safe },
{ NULL, NULL }
};
AMX_NATIVE_INFO pdata_natives[] =
{
{ "get_pdata_cbase", get_pdata_cbase },
{ "set_pdata_cbase", set_pdata_cbase },
{ NULL, NULL }
};