// 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 // // Fakemeta Module // #include "fakemeta_amxx.h" #include enum class BaseFieldType { None, Integer, Float, Vector, Entity, String, }; static const char *BaseFieldTypeName[] = { "none", "integer", "float", "vector", "entity", "string", }; static BaseFieldType GetBaseDataType(TypeDescription &data) { switch (data.fieldType) { case FieldType::FIELD_INTEGER: case FieldType::FIELD_STRINGINT: case FieldType::FIELD_SHORT: case FieldType::FIELD_CHARACTER: case FieldType::FIELD_CLASS: case FieldType::FIELD_STRUCTURE: case FieldType::FIELD_POINTER: case FieldType::FIELD_FUNCTION: case FieldType::FIELD_BOOLEAN: { return BaseFieldType::Integer; } case FieldType::FIELD_FLOAT: { return BaseFieldType::Float; } case FieldType::FIELD_VECTOR: { return BaseFieldType::Vector; } case FieldType::FIELD_CLASSPTR: case FieldType::FIELD_ENTVARS: case FieldType::FIELD_EDICT: case FieldType::FIELD_EHANDLE: { return BaseFieldType::Entity; } case FieldType::FIELD_STRINGPTR: case FieldType::FIELD_STRING: { return BaseFieldType::String; } } return BaseFieldType::None; } #define GET_TYPE_DESCRIPTION(position, data, baseType, list) \ GET_TYPE_DESCRIPTION_START(position, data, baseType) \ CHECK_##list##_OFFSET(className, memberName, data) \ CHECK_ERROR(className, memberName) \ GET_TYPE_DESCRIPTION_END(memberName, data, baseType) #define GET_TYPE_DESCRIPTION_START(position, data, baseType) \ int classLength, memberLength; \ const char *className = MF_GetAmxString(amx, params[position], 0, &classLength); \ const char *memberName = MF_GetAmxString(amx, params[position + 1], 1, &memberLength); \ if (!classLength || !memberLength) \ { \ MF_LogError(amx, AMX_ERR_NATIVE, "Either class (\"%s\") or member (\"%s\") is empty", className, memberName); \ return 0; \ } #define CHECK_ENTITY_OFFSET(className, memberName, data) \ else if (!CommonConfig->GetOffsetByClass(className, memberName, &data)) #define CHECK_GAMERULES_OFFSET(className, memberName, data) \ else if (!GamerulesConfig->GetOffsetByClass(className, memberName, &data)) #define CHECK_ALL_OFFSET(className, memberName, data) \ else if (!CommonConfig->GetOffsetByClass(className, memberName, &data) && \ !GamerulesConfig->GetOffsetByClass(className, memberName, &data)) #define CHECK_ERROR(className, memberName) \ { \ MF_LogError(amx, AMX_ERR_NATIVE, "Could not find class \"%s\" and/or member \"%s\" in gamedata", className, memberName); \ return 0; \ } #define GET_TYPE_DESCRIPTION_END(memberName, data, baseType) \ else if (data.fieldOffset < 0) \ { \ MF_LogError(amx, AMX_ERR_NATIVE, "Invalid offset %d retrieved from \"%s\" member", data.fieldOffset, memberName); \ return 0; \ } \ else if (baseType > BaseFieldType::None && baseType != GetBaseDataType(data)) \ { \ MF_LogError(amx, AMX_ERR_NATIVE, "Data field is not %s-based", BaseFieldTypeName[static_cast(baseType)]); \ return 0; \ } #define CHECK_ELEMENT(element) \ if (element < 0 || (element > 0 && element >= data.fieldSize)) \ { \ MF_LogError(amx, AMX_ERR_NATIVE, "Invalid element index %d, value must be between 0 and %d", element, data.fieldSize); \ return 0; \ } \ else if (element > 0 && !data.fieldSize) \ { \ MF_LogError(amx, AMX_ERR_NATIVE, "Member \"%s\" is not an array. Element %d is invalid.", memberName, element);\ return 0; \ } #define CHECK_GAMERULES() \ if (!GameRulesAddress) \ { \ MF_LogError(amx, AMX_ERR_NATIVE, "%s is disabled. Check your AMXX log.", __FUNCTION__); \ return 0; \ } cell GetData(void *pObject, TypeDescription &data, int element) { switch (data.fieldType) { case FieldType::FIELD_INTEGER: case FieldType::FIELD_STRINGINT: { return get_pdata(pObject, data.fieldOffset, element); } case FieldType::FIELD_CLASS: case FieldType::FIELD_STRUCTURE: { return get_pdata_direct(pObject, data.fieldOffset); } case FieldType::FIELD_POINTER: case FieldType::FIELD_FUNCTION: { return reinterpret_cast(get_pdata(pObject, data.fieldOffset, element)); } case FieldType::FIELD_SHORT: { if (data.fieldUnsigned) { return get_pdata(pObject, data.fieldOffset, element); } else { return get_pdata(pObject, data.fieldOffset, element); } } case FieldType::FIELD_CHARACTER: { if (data.fieldUnsigned) { return get_pdata(pObject, data.fieldOffset, element); } else { return get_pdata(pObject, data.fieldOffset, element); } } case FieldType::FIELD_BOOLEAN: { return get_pdata(pObject, data.fieldOffset, element) ? 1 : 0; } } return 0; } void SetData(void *pObject, TypeDescription &data, cell value, int element) { switch (data.fieldType) { case FieldType::FIELD_INTEGER: case FieldType::FIELD_STRINGINT: { set_pdata(pObject, data.fieldOffset, static_cast(value), element); break; } case FieldType::FIELD_POINTER: case FieldType::FIELD_FUNCTION: { set_pdata(pObject, data.fieldOffset, reinterpret_cast(value), element); break; } case FieldType::FIELD_SHORT: { if (data.fieldUnsigned) { set_pdata(pObject, data.fieldOffset, static_cast(value), element); } else { set_pdata(pObject, data.fieldOffset, static_cast(value), element); } break; } case FieldType::FIELD_CHARACTER: { if (data.fieldUnsigned) { set_pdata(pObject, data.fieldOffset, static_cast(value), element); } else { set_pdata(pObject, data.fieldOffset, static_cast(value), element); } break; } case FieldType::FIELD_BOOLEAN: { set_pdata(pObject, data.fieldOffset, value != 0, element); break; } } } cell GetDataFloat(void *pObject, TypeDescription &data, int element) { return amx_ftoc(get_pdata(pObject, data.fieldOffset, element)); } void SetDataFloat(void *pObject, TypeDescription &data, float value, int element) { set_pdata(pObject, data.fieldOffset, value, element); } void GetDataVector(void *pObject, TypeDescription &data, cell *pVector, int element) { auto vector = get_pdata(pObject, data.fieldOffset, element); pVector[0] = amx_ftoc(vector.x); pVector[1] = amx_ftoc(vector.y); pVector[2] = amx_ftoc(vector.z); } void SetDataVector(void *pObject, TypeDescription &data, cell *pVector, int element) { Vector vector(amx_ctof(pVector[0]), amx_ctof(pVector[1]), amx_ctof(pVector[2])); set_pdata(pObject, data.fieldOffset, vector, element); } cell GetDataEntity(void *pObject, TypeDescription &data, int element) { switch (data.fieldType) { case FieldType::FIELD_CLASSPTR: { return TypeConversion.cbase_to_id(get_pdata(pObject, data.fieldOffset, element)); } case FieldType::FIELD_ENTVARS: { return TypeConversion.entvars_to_id(get_pdata(pObject, data.fieldOffset, element)); } case FieldType::FIELD_EDICT: { return TypeConversion.edict_to_id(get_pdata(pObject, data.fieldOffset, element)); } case FieldType::FIELD_EHANDLE: { return TypeConversion.edict_to_id(get_pdata(pObject, data.fieldOffset, element).Get()); } } return 0; } void SetDataEntity(void *pObject, TypeDescription &data, int value, int element) { switch (data.fieldType) { case FieldType::FIELD_CLASSPTR: { set_pdata(pObject, data.fieldOffset, value != -1 ? TypeConversion.id_to_cbase(value) : nullptr, element); break; } case FieldType::FIELD_ENTVARS: { set_pdata(pObject, data.fieldOffset, value != -1 ? TypeConversion.id_to_entvars(value) : nullptr, element); break; } case FieldType::FIELD_EDICT: { set_pdata(pObject, data.fieldOffset, value != -1 ? TypeConversion.id_to_edict(value) : nullptr, element); break; } case FieldType::FIELD_EHANDLE: { get_pdata(pObject, data.fieldOffset, element).Set(value != -1 ? TypeConversion.id_to_edict(value) : nullptr); break; } } } char* GetDataString(void *pObject, TypeDescription &data, int element) { switch (data.fieldType) { case FieldType::FIELD_STRING: { return get_pdata_direct(pObject, data.fieldOffset, element, data.fieldSize); } case FieldType::FIELD_STRINGPTR: { return get_pdata(pObject, data.fieldOffset, element); } } return nullptr; } cell SetDataString(void *pObject, TypeDescription &data, const char *value, int maxlen, int element) { switch (data.fieldType) { case FieldType::FIELD_STRING: { auto buffer = get_pdata_direct(pObject, data.fieldOffset); return strncopy(buffer, value, ke::Min(maxlen + 1, data.fieldSize)); } case FieldType::FIELD_STRINGPTR: { auto buffer = get_pdata(pObject, data.fieldOffset, element); if (!buffer || maxlen > static_cast(strlen(buffer))) { if (buffer) { free(buffer); } buffer = reinterpret_cast(malloc(maxlen + 1)); set_pdata(pObject, data.fieldOffset, buffer, element); } return strncopy(buffer, value, maxlen + 1); } } return 0; } // native any:get_ent_data(entity, const class[], const member[], element = 0); static cell AMX_NATIVE_CALL get_ent_data(AMX *amx, cell *params) { int entity = params[1]; CHECK_ENTITY(entity); TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::Integer); int element = params[4]; CHECK_ELEMENT(element); auto pEntity = TypeConversion.id_to_edict(entity); switch (data.fieldType) { case FieldType::FIELD_INTEGER: case FieldType::FIELD_STRINGINT: { return get_pdata(pEntity, data.fieldOffset, element); } case FieldType::FIELD_CLASS: case FieldType::FIELD_STRUCTURE: { return reinterpret_cast(reinterpret_cast(pEntity->pvPrivateData) + data.fieldOffset); } case FieldType::FIELD_POINTER: case FieldType::FIELD_FUNCTION: { return reinterpret_cast(get_pdata(pEntity, data.fieldOffset, element)); } case FieldType::FIELD_SHORT: { if (data.fieldUnsigned) { return get_pdata(pEntity, data.fieldOffset, element); } else { return get_pdata(pEntity, data.fieldOffset, element); } } case FieldType::FIELD_CHARACTER: { if (data.fieldUnsigned) { return get_pdata(pEntity, data.fieldOffset, element); } else { return get_pdata(pEntity, data.fieldOffset, element); } } case FieldType::FIELD_BOOLEAN: { return get_pdata(pEntity, data.fieldOffset, element) ? 1 : 0; } } return 0; } // native set_ent_data(entity, const class[], const member[], any:value, element = 0); static cell AMX_NATIVE_CALL set_ent_data(AMX *amx, cell *params) { int entity = params[1]; CHECK_ENTITY(entity); TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::Integer); int element = params[5]; CHECK_ELEMENT(element); auto pEntity = TypeConversion.id_to_edict(entity); auto value = params[4]; switch (data.fieldType) { case FieldType::FIELD_INTEGER: case FieldType::FIELD_STRINGINT: { set_pdata(pEntity, data.fieldOffset, static_cast(value), element); break; } case FieldType::FIELD_CLASS: case FieldType::FIELD_STRUCTURE: { MF_LogError(amx, AMX_ERR_NATIVE, "Setting directly to a class or structure address is not available"); return 0; } case FieldType::FIELD_POINTER: case FieldType::FIELD_FUNCTION: { set_pdata(pEntity, data.fieldOffset, reinterpret_cast(value), element); break; } case FieldType::FIELD_SHORT: { if (data.fieldUnsigned) { set_pdata(pEntity, data.fieldOffset, static_cast(value), element); } else { set_pdata(pEntity, data.fieldOffset, static_cast(value), element); } break; } case FieldType::FIELD_CHARACTER: { if (data.fieldUnsigned) { set_pdata(pEntity, data.fieldOffset, static_cast(value), element); } else { set_pdata(pEntity, data.fieldOffset, static_cast(value), element); } break; } case FieldType::FIELD_BOOLEAN: { set_pdata(pEntity, data.fieldOffset, value != 0, element); break; } } return 0; } // native Float:get_ent_data_float(entity, const class[], const member[], element = 0); static cell AMX_NATIVE_CALL get_ent_data_float(AMX *amx, cell *params) { int entity = params[1]; CHECK_ENTITY(entity); TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::Float); int element = params[4]; CHECK_ELEMENT(element); return amx_ftoc(get_pdata(TypeConversion.id_to_edict(entity), data.fieldOffset, element)); } // native set_ent_data_float(entity, const classname[], const member[], Float:value, element = 0); static cell AMX_NATIVE_CALL set_ent_data_float(AMX *amx, cell *params) { int entity = params[1]; CHECK_ENTITY(entity); TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::Float); int element = params[5]; CHECK_ELEMENT(element); set_pdata(TypeConversion.id_to_edict(entity), data.fieldOffset, amx_ctof(params[4]), element); return 1; } // native get_ent_data_vector(entity, const class[], const member[], Float:value[3], element = 0); static cell AMX_NATIVE_CALL get_ent_data_vector(AMX *amx, cell *params) { int entity = params[1]; CHECK_ENTITY(entity); TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::Vector); int element = params[5]; CHECK_ELEMENT(element); auto refvec = MF_GetAmxAddr(amx, params[4]); auto vector = get_pdata(TypeConversion.id_to_edict(entity), data.fieldOffset, element); refvec[0] = amx_ftoc(vector.x); refvec[1] = amx_ftoc(vector.y); refvec[2] = amx_ftoc(vector.z); return 1; } // native set_ent_data_vector(entity, const class[], const member[], Float:value[3], element = 0); static cell AMX_NATIVE_CALL set_ent_data_vector(AMX *amx, cell *params) { int entity = params[1]; CHECK_ENTITY(entity); TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::Vector); int element = params[5]; CHECK_ELEMENT(element); auto refvec = MF_GetAmxAddr(amx, params[4]); Vector vector(amx_ctof(refvec[0]), amx_ctof(refvec[1]), amx_ctof(refvec[2])); set_pdata(TypeConversion.id_to_edict(entity), data.fieldOffset, vector, element); return 1; } // native get_ent_data_entity(entity, const class[], const member[], element = 0); static cell AMX_NATIVE_CALL get_ent_data_entity(AMX *amx, cell *params) { int entity = params[1]; CHECK_ENTITY(entity); TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::Entity); int element = params[4]; CHECK_ELEMENT(element); auto pEntity = TypeConversion.id_to_edict(entity); switch (data.fieldType) { case FieldType::FIELD_CLASSPTR: { return TypeConversion.cbase_to_id(get_pdata(pEntity, data.fieldOffset, element)); } case FieldType::FIELD_ENTVARS: { return TypeConversion.entvars_to_id(get_pdata(pEntity, data.fieldOffset, element)); } case FieldType::FIELD_EDICT: { return TypeConversion.edict_to_id(get_pdata(pEntity, data.fieldOffset, element)); } case FieldType::FIELD_EHANDLE: { return TypeConversion.edict_to_id(get_pdata(pEntity, data.fieldOffset, element).Get()); } } return 0; } // native set_ent_data_entity(entity, const class[], const member[], value, element = 0); static cell AMX_NATIVE_CALL set_ent_data_entity(AMX *amx, cell *params) { int entity = params[1]; int value = params[4]; CHECK_ENTITY(entity); if (value != -1) { CHECK_ENTITY(value); } TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::Entity); int element = params[5]; CHECK_ELEMENT(element); auto pEntity = TypeConversion.id_to_edict(entity); switch (data.fieldType) { case FieldType::FIELD_CLASSPTR: { set_pdata(pEntity, data.fieldOffset, value != -1 ? TypeConversion.id_to_cbase(value) : nullptr, element); break; } case FieldType::FIELD_ENTVARS: { set_pdata(pEntity, data.fieldOffset, value != -1 ? TypeConversion.id_to_entvars(value) : nullptr, element); break; } case FieldType::FIELD_EDICT: { set_pdata(pEntity, data.fieldOffset, value != -1 ? TypeConversion.id_to_edict(value) : nullptr, element); break; } case FieldType::FIELD_EHANDLE: { get_pdata(pEntity, data.fieldOffset, element).Set(value != -1 ? TypeConversion.id_to_edict(value) : nullptr); break; } } return 0; } // native get_ent_data_string(entity, const class[], const member[], value[], maxlen, element = 0); static cell AMX_NATIVE_CALL get_ent_data_string(AMX *amx, cell *params) { int entity = params[1]; CHECK_ENTITY(entity); TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::String); int element = params[6]; CHECK_ELEMENT(element); auto pEntity = TypeConversion.id_to_edict(entity); cell buffer = params[4]; int maxlen = params[5]; switch (data.fieldType) { case FieldType::FIELD_STRING: { maxlen = ke::Min(maxlen, static_cast(data.fieldSize)); char *string = get_pdata_direct(pEntity, data.fieldOffset, element, data.fieldSize); return MF_SetAmxStringUTF8Char(amx, buffer, string ? string : "", string ? strlen(string) : 0, maxlen); } case FieldType::FIELD_STRINGPTR: { char *string = get_pdata(pEntity, data.fieldOffset, element); return MF_SetAmxStringUTF8Char(amx, buffer, string ? string : "", string ? strlen(string) : 0, maxlen); } } return 0; } // native set_ent_data_string(entity, const class[], const member[], const value[], element = 0); static cell AMX_NATIVE_CALL set_ent_data_string(AMX *amx, cell *params) { int entity = params[1]; CHECK_ENTITY(entity); TypeDescription data; GET_TYPE_DESCRIPTION(2, data, BaseFieldType::String); int element = params[5]; CHECK_ELEMENT(element); auto pEntity = TypeConversion.id_to_edict(entity); int length; const char *value = MF_GetAmxString(amx, params[4], 0, &length); switch (data.fieldType) { case FieldType::FIELD_STRING: { auto buffer = reinterpret_cast(pEntity->pvPrivateData) + data.fieldOffset; return strncopy(buffer, value, ke::Min(length + 1, data.fieldSize)); } case FieldType::FIELD_STRINGPTR: { auto buffer = get_pdata(pEntity, data.fieldOffset, element); if (!buffer || length > static_cast(strlen(buffer))) { if (buffer) { free(buffer); } buffer = reinterpret_cast(malloc(length + 1)); set_pdata(pEntity, data.fieldOffset, buffer, element); } return strncopy(buffer, value, length + 1); } } return 0; } // native get_ent_data_size(const class[], const member[]); static cell AMX_NATIVE_CALL get_ent_data_size(AMX *amx, cell *params) { TypeDescription data; GET_TYPE_DESCRIPTION(0, data, BaseFieldType::None); return data.fieldSize; } // native find_ent_data_info(const class[], const member[], &FieldType:type = FIELD_NONE, &arraysize = 0, &bool:unsigned = false); static cell AMX_NATIVE_CALL find_ent_data_info(AMX *amx, cell *params) { TypeDescription data; GET_TYPE_DESCRIPTION(1, data, BaseFieldType::None); *MF_GetAmxAddr(amx, params[3]) = static_cast(data.fieldType); *MF_GetAmxAddr(amx, params[4]) = ke::Max(0, data.fieldSize); *MF_GetAmxAddr(amx, params[5]) = data.fieldUnsigned != 0; return data.fieldOffset; } AMX_NATIVE_INFO pdata_gc_natives[] = { { "get_ent_data" , get_ent_data }, { "set_ent_data" , set_ent_data }, { "get_ent_data_float" , get_ent_data_float }, { "set_ent_data_float" , set_ent_data_float }, { "get_ent_data_vector", get_ent_data_vector }, { "set_ent_data_vector", set_ent_data_vector }, { "get_ent_data_entity", get_ent_data_entity }, { "set_ent_data_entity", set_ent_data_entity }, { "get_ent_data_string", get_ent_data_string }, { "set_ent_data_string", set_ent_data_string }, { "get_ent_data_size" , get_ent_data_size }, { "find_ent_data_info" , find_ent_data_info }, { nullptr , nullptr } };