static cell AMX_NATIVE_CALL RegisterHam(AMX *amx, cell *params) { // Make sure the function we're requesting is within bounds int func=params[1]; int post=params[4]; CHECK_FUNCTION(func); char *function=MF_GetAmxString(amx, params[3], 0, NULL); char *classname=MF_GetAmxString(amx, params[2], 1, NULL); // Check the entity // create an entity, assign it the gamedll's class, hook it and destroy it edict_t *Entity=CREATE_ENTITY(); CALL_GAME_ENTITY(PLID,classname,&Entity->v); if (Entity->pvPrivateData == NULL) { REMOVE_ENTITY(Entity); MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve classtype for \"%s\", hook for \"%s\" not active.",classname,function); return 0; } void **vtable=GetVTable(Entity->pvPrivateData, Offsets.GetBase()); REMOVE_ENTITY(Entity); if (vtable == NULL) { MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve vtable for \"%s\", hook for \"%s\" not active.",classname,function); return 0; } // Verify that the function is valid // Don't fail the plugin if this fails, just emit a normal error int fwd=hooklist[func].makefunc(amx, function); if (fwd == -1) { MF_LogError(amx, AMX_ERR_NATIVE, "Function %s not found.", function); return 0; } // We've passed all tests... int **ivtable=(int **)vtable; void *vfunction=(void *)ivtable[hooklist[func].vtid]; // Check the list of this function's hooks, see if the function we have is a hook CVector<Hook *>::iterator end=hooks[func].end(); for (CVector<Hook *>::iterator i=hooks[func].begin(); i!=end; ++i) { if ((*i)->tramp == vfunction) { // Yes, this function is hooked Forward *pfwd=new Forward(fwd); if (post) { (*i)->post.push_back(pfwd); } else { (*i)->pre.push_back(pfwd); } return reinterpret_cast<cell>(pfwd); } } // If we got here, the function is not hooked Hook *hook=new Hook(vtable, hooklist[func].vtid, hooklist[func].targetfunc, hooklist[func].isvoid, hooklist[func].paramcount, classname); hooks[func].push_back(hook); Forward *pfwd=new Forward(fwd); if (post) { hook->post.push_back(pfwd); } else { hook->pre.push_back(pfwd); } return reinterpret_cast<cell>(pfwd); }
// RegisterHamFromEntity(Ham:function, EntityId, const Callback[], Post=0); static cell AMX_NATIVE_CALL RegisterHamFromEntity(AMX *amx, cell *params) { // Make sure the function we're requesting is within bounds int func=params[1]; int post=params[4]; CHECK_FUNCTION(func); char *function=MF_GetAmxString(amx, params[3], 0, NULL); int entid=params[2]; char classname[64]; // Check the entity edict_t *Entity=INDEXENT_NEW(entid); if (Entity->pvPrivateData == NULL) { MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve classtype for entity id \"%d\", hook for \"%s\" not active.",entid,function); return 0; } void **vtable=GetVTable(Entity->pvPrivateData, Offsets.GetBase()); if (vtable == NULL) { MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve vtable for entity id \"%d\", hook for \"%s\" not active.",entid,function); return 0; } // Verify that the function is valid // Don't fail the plugin if this fails, just emit a normal error int fwd=hooklist[func].makefunc(amx, function); if (fwd == -1) { MF_LogError(amx, AMX_ERR_NATIVE, "Function %s not found.", function); return 0; } // We've passed all tests... int **ivtable=(int **)vtable; void *vfunction=(void *)ivtable[hooklist[func].vtid]; // Check the list of this function's hooks, see if the function we have is a hook CVector<Hook *>::iterator end=hooks[func].end(); for (CVector<Hook *>::iterator i=hooks[func].begin(); i!=end; ++i) { if ((*i)->tramp == vfunction) { // Yes, this function is hooked Forward *pfwd=new Forward(fwd); if (post) { (*i)->post.push_back(pfwd); } else { (*i)->pre.push_back(pfwd); } return reinterpret_cast<cell>(pfwd); } } // Note down the classname for the given class // It may very well be wrong (such as lots of TS weapons have the same classname) // but it's the best we can do, and better than nothing. // (only used for display) snprintf(classname, sizeof(classname) - 1, "%s", STRING(Entity->v.classname)); // If we got here, the function is not hooked Hook *hook=new Hook(vtable, hooklist[func].vtid, hooklist[func].targetfunc, hooklist[func].isvoid, hooklist[func].paramcount, classname); hooks[func].push_back(hook); Forward *pfwd=new Forward(fwd); if (post) { hook->post.push_back(pfwd); } else { hook->pre.push_back(pfwd); } return reinterpret_cast<cell>(pfwd); }
static cell AMX_NATIVE_CALL RegisterHam(AMX *amx, cell *params) { // Make sure the function we're requesting is within bounds int func=params[1]; int post=params[4]; CHECK_FUNCTION(func); char *function=MF_GetAmxString(amx, params[3], 0, NULL); char *classname=MF_GetAmxString(amx, params[2], 1, NULL); // Check the entity // create an entity, assign it the gamedll's class, hook it and destroy it edict_t *Entity=CREATE_ENTITY(); CALL_GAME_ENTITY(PLID,classname,&Entity->v); if (Entity->pvPrivateData == NULL) { REMOVE_ENTITY(Entity); MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve classtype for \"%s\", hook for \"%s\" not active.",classname,function); return 0; } void **vtable=GetVTable(Entity->pvPrivateData, Offsets.GetBase()); REMOVE_ENTITY(Entity); if (vtable == NULL) { MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve vtable for \"%s\", hook for \"%s\" not active.",classname,function); return 0; } // Verify that the function is valid // Don't fail the plugin if this fails, just emit a normal error int fwd=hooklist[func].makefunc(amx, function); if (fwd == -1) { MF_LogError(amx, AMX_ERR_NATIVE, "Function %s not found.", function); return 0; } bool enableSpecialBot = false; // Old plugin doesn't have this param. if (*params / sizeof(cell) == 5) { enableSpecialBot = params[5] > 0; } Forward *pfwd = new Forward(fwd); // We've passed all tests... if (strcmp(classname, "player") == 0 && enableSpecialBot) { SpecialbotHandler.RegisterHamSpecialBot(amx, func, function, post, pfwd); } int **ivtable=(int **)vtable; void *vfunction=(void *)ivtable[hooklist[func].vtid]; // Check the list of this function's hooks, see if the function we have is a hook for (size_t i = 0; i < hooks[func].length(); ++i) { if (hooks[func].at(i)->tramp == vfunction) { // Yes, this function is hooked if (post) { hooks[func].at(i)->post.append(pfwd); } else { hooks[func].at(i)->pre.append(pfwd); } return reinterpret_cast<cell>(pfwd); } } // If we got here, the function is not hooked Hook *hook = new Hook(vtable, hooklist[func].vtid, hooklist[func].targetfunc, hooklist[func].isvoid, hooklist[func].needsretbuf, hooklist[func].paramcount, classname); hooks[func].append(hook); if (post) { hook->post.append(pfwd); } else { hook->pre.append(pfwd); } return reinterpret_cast<cell>(pfwd); }