int UDPManager::sendDatagram(DataBuffer * data, unsigned long ipAddress, unsigned long port, unsigned long frameCount) {
if (initErrors || data == NULL || port == 0) return -1;
sockaddr_in otherAddress;
otherAddress.sin_family = AF_INET;
otherAddress.sin_addr.s_addr = ipAddress;
otherAddress.sin_port = port;
int packetSize = data->getSize();
DataBuffer * sendBuffer = new DataBuffer(packetSize + 4);
//sendBuffer->copy(0, &packetSize, sizeof(int));
sendBuffer->copy(0, &frameCount, 4);
sendBuffer->copy(4, data->getData(), data->getSize());
if (sendto(sock, sendBuffer->getData(), sendBuffer->getSize(), 0, (struct sockaddr *)&otherAddress, sizeof(otherAddress)) < 0) {
perror("UDP sendto() failed\n");
delete sendBuffer;
return -1;
}
//printf("UDP Send:");
//Utilities::printfNetworkPacket(sendBuffer->getData(), sendBuffer->getSize());
delete sendBuffer;
return 0;
}
DataBuffer * NetworkFunctions::createClearObjectsBuffer()
{
DataBuffer * tempBuffer = new DataBuffer(5);
int functionID = EVENT_CLEAR_OBJECTS;
tempBuffer->copy(0, &functionID, 4);
tempBuffer->copy(4, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createDeleteObjectBuffer(unsigned long netID)
{
DataBuffer * tempBuffer = new DataBuffer(9);
int functionID = EVENT_DELETE_GAME_OBJECT;
tempBuffer->copy(0, &functionID, 4);
tempBuffer->copy(4, &netID, 4);
tempBuffer->copy(8, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createUpdateObjectBuffer(unsigned long netID)
{
GameObject * tempObject = gameObjects->getValue(netID);
if (tempObject == NULL) return NULL;
DataBuffer * tempBuffer = tempObject->serialize();
int functionIndex = EVENT_UPDATE_GAME_OBJECT;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &netID, 4);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createSpawnHalfHealthKitBuffer(glm::vec3 position, unsigned long netID)
{
DataBuffer * tempBuffer = new DataBuffer(17);
int functionIndex = EVENT_SPAWN_HALF_HEALTH_KIT;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &netID, 4);
tempBuffer->copy(8, &position.x, 4);
tempBuffer->copy(12, &position.y, 4);
tempBuffer->copy(16, &position.z, 4);
tempBuffer->copy(20, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createChangeSpellBuffer(int playerID, int elementIndex, int subID) //SubID refers to the index in the element vector, IE the Xth fire spell
{
if (playerID < 0 || playerID >= players->size() || players->at(playerID) == NULL) return NULL;
if (elementIndex < 0 || elementIndex > 4) return NULL;
DataBuffer * tempBuffer = new DataBuffer(17);
int functionIndex = EVENT_CHANGE_SPELL;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &playerID, 4);
tempBuffer->copy(8, &elementIndex, 4);
tempBuffer->copy(12, &subID, 4);
tempBuffer->copy(16, "\n", 1);
return tempBuffer;
}
DataBuffer * Spell::createDamageBuffer(int playerID, int targetID, int damage, int spellID)
{
if (spellID < 0 || spellID >= SPELLID_COUNT) return NULL;
DataBuffer * tempBuffer = new DataBuffer(21);
int functionIndex = EVENT_DAMAGE;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &playerID, 4);
tempBuffer->copy(8, &targetID, 4);
tempBuffer->copy(12, &damage, 4);
tempBuffer->copy(16, &spellID, 4);
tempBuffer->copy(20, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createHealBuffer(int playerID, int targetID, int healing, int spellID)
{
if (playerID < 0 || playerID >= players->size() || players->at(playerID) == NULL) return NULL;
if (targetID < 0 || targetID >= players->size() || players->at(targetID) == NULL) return NULL;
if (spellID < 0 || spellID >= SPELLID_COUNT) return NULL;
DataBuffer * tempBuffer = new DataBuffer(21);
int functionIndex = EVENT_HEAL;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &playerID, 4);
tempBuffer->copy(8, &targetID, 4);
tempBuffer->copy(12, &healing, 4);
tempBuffer->copy(16, &spellID, 4);
tempBuffer->copy(20, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createAddSpellBuffer(int playerID, int elementIndex, int spellID)
{
if (playerID < 0 || playerID >= players->size() || players->at(playerID) == NULL) return NULL;
if (elementIndex < 0 || elementIndex > 4) return NULL;
if (spellID < 0 || spellID > SPELLID_COUNT) return NULL;
int functionID = EVENT_ADD_SPELL;
DataBuffer * tempBuffer = new DataBuffer(17);
tempBuffer->copy(0, &functionID, 4);
tempBuffer->copy(4, &playerID, 4);
tempBuffer->copy(8, &elementIndex, 4);
tempBuffer->copy(12, &spellID, 4);
tempBuffer->copy(16, "\n", 1);
return tempBuffer;
}
DataBuffer * Spell::createCentralForceBuffer(GameObject * g, glm::vec3 force, int spellID)
{
if (spellID < 0 || spellID >= SPELLID_COUNT) return NULL;
if (g == NULL) return NULL;
DataBuffer * tempBuffer = g->createSpellCentralForceBuffer(force, spellID);
tempBuffer->copy(8, &ownerID, 4);
return tempBuffer;
}
DataBuffer * RigidObject::serialize()
{
if (!physInit) return NULL;
btVector3 pos = body->getCenterOfMassPosition();
btVector3 linVel = body->getLinearVelocity();
btQuaternion orient = body->getOrientation();
btVector3 angVel = body->getAngularVelocity();
DataBuffer * tempBuffer = new DataBuffer(getSerializedSize());
float test = 1.0f;
memcpy(&test, &pos.x(), 4);
int uninit = -1;
tempBuffer->copy(0, &uninit, 4); //function ID
unsigned long netID = getNetID();
tempBuffer->copy(4, &netID, 4);
tempBuffer->copy(8, &pos.x(), 4);
tempBuffer->copy(12, &pos.y(), 4);
tempBuffer->copy(16, &pos.z(), 4);
tempBuffer->copy(20, &linVel.x(), 4);
tempBuffer->copy(24, &linVel.y(), 4);
tempBuffer->copy(28, &linVel.z(), 4);
tempBuffer->copy(32, &orient.x(), 4);
tempBuffer->copy(36, &orient.y(), 4);
tempBuffer->copy(40, &orient.z(), 4);
tempBuffer->copy(44, &orient.w(), 4);
tempBuffer->copy(48, &angVel.x(), 4);
tempBuffer->copy(52, &angVel.y(), 4);
tempBuffer->copy(56, &angVel.z(), 4);
tempBuffer->copy(60, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createAttackBuffer(int playerID, int spellID, glm::vec3 pos, glm::vec3 lookAt)
{
if (playerID < 0 || playerID >= players->size() || players->at(playerID) == NULL) return NULL;
DataBuffer * tempBuffer = new DataBuffer(37);
int functionIndex = EVENT_ATTACK;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &playerID, 4);
tempBuffer->copy(8, &spellID, 4);
tempBuffer->copy(12, &pos.x, 4);
tempBuffer->copy(16, &pos.y, 4);
tempBuffer->copy(20, &pos.z, 4);
tempBuffer->copy(24, &lookAt.x, 4);
tempBuffer->copy(28, &lookAt.y, 4);
tempBuffer->copy(32, &lookAt.z, 4);
tempBuffer->copy(36, "\n", 1);
return tempBuffer;
}
DataBuffer * Spell::createCreateFadingBeamEffectBuffer(glm::vec3 start, glm::vec3 end, glm::vec3 colour, long duration)
{
DataBuffer * tempBuffer = new DataBuffer(45);
int functionIndex = EVENT_CREATE_FADING_BEAM_EFFECT;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &start.x, 4);
tempBuffer->copy(8, &start.y, 4);
tempBuffer->copy(12, &start.z, 4);
tempBuffer->copy(16, &end.x, 4);
tempBuffer->copy(20, &end.y, 4);
tempBuffer->copy(24, &end.z, 4);
tempBuffer->copy(28, &colour.x, 4);
tempBuffer->copy(32, &colour.y, 4);
tempBuffer->copy(36, &colour.z, 4);
tempBuffer->copy(40, &duration, 4);
tempBuffer->copy(44, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createForceBuffer(int playerID, unsigned long netID, glm::vec3 worldPos, glm::vec3 force, int spellID)
{
if (playerID < 0 || playerID >= players->size() || players->at(playerID) == NULL) return NULL;
if (spellID < 0 || spellID >= SPELLID_COUNT) return NULL;
DataBuffer * tempBuffer = new DataBuffer(41);
int functionIndex = EVENT_FORCE;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &netID, 4);
tempBuffer->copy(8, &playerID, 4);
tempBuffer->copy(12, &worldPos.x, 4);
tempBuffer->copy(16, &worldPos.y, 4);
tempBuffer->copy(20, &worldPos.z, 4);
tempBuffer->copy(24, &force.x, 4);
tempBuffer->copy(28, &force.y, 4);
tempBuffer->copy(32, &force.z, 4);
tempBuffer->copy(36, &spellID, 4);
tempBuffer->copy(40, "\n", 1);
return tempBuffer;
}
DataBuffer * Fireball::createCreateFireballBuffer()
{
if (owner == NULL) return NULL;
DataBuffer * tempBuffer = new DataBuffer(33);
int functionIndex = EVENT_CREATE_FIREBALL;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &ownerID, 4);
tempBuffer->copy(8, &position.x, 4);
tempBuffer->copy(12, &position.y, 4);
tempBuffer->copy(16, &position.z, 4);
tempBuffer->copy(20, &direction.x, 4);
tempBuffer->copy(24, &direction.y, 4);
tempBuffer->copy(28, &direction.z, 4);
tempBuffer->copy(32, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createCreateGrenadeBuffer(int playerID, glm::vec3 pos, glm::vec3 dir)
{
if (playerID < 0 || playerID >= (int)players->size() || players->at(playerID) == NULL) return NULL;
DataBuffer * tempBuffer = new DataBuffer(33);
int functionIndex = EVENT_CREATE_GRENADE;
tempBuffer->copy(0, &functionIndex, 4);
tempBuffer->copy(4, &playerID, 4);
tempBuffer->copy(8, &pos.x, 4);
tempBuffer->copy(12, &pos.y, 4);
tempBuffer->copy(16, &pos.z, 4);
tempBuffer->copy(20, &dir.x, 4);
tempBuffer->copy(24, &dir.y, 4);
tempBuffer->copy(28, &dir.z, 4);
tempBuffer->copy(32, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createCreateMeshObjectBuffer(MeshObject * meshObject)
{
if (meshObject == NULL) return NULL;
DataBuffer * tempBuffer = new DataBuffer(meshObject->getCreationSize()); //should be 129
int functionID = EVENT_ADD_MESH_OBJECT;
tempBuffer->copy(0, &functionID, 4);
unsigned long netID = meshObject->getNetID();
tempBuffer->copy(4, &netID, 4);
string modelName = meshObject->getModelName();
string textureName = meshObject->getTextureName();
string shaderName = meshObject->getShaderName();
string propName = meshObject->getCollisionName();
char nullBuffer[32]; memset(nullBuffer, '\0', 32); //for (int i = 0; i < 32; i++) nullBuffer[i] = '\0';
tempBuffer->copy(8, nullBuffer, 32);
tempBuffer->copy(8, modelName.c_str(), std::min(32, (int)modelName.length()));
tempBuffer->copy(40, nullBuffer, 32);
tempBuffer->copy(40, textureName.c_str(), std::min(32, (int)textureName.length()));
tempBuffer->copy(72, nullBuffer, 32);
tempBuffer->copy(72, shaderName.c_str(), std::min(32, (int)shaderName.length()));
glm::vec3 pos = meshObject->getPosition();
tempBuffer->copy(104, &pos.x, 4);
tempBuffer->copy(108, &pos.y, 4);
tempBuffer->copy(112, &pos.z, 4);
glm::vec3 lookAt = meshObject->getDirection();
tempBuffer->copy(116, &lookAt.x, 4);
tempBuffer->copy(120, &lookAt.y, 4);
tempBuffer->copy(124, &lookAt.z, 4);
tempBuffer->copy(128, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createCreateCharacterObjectBuffer(CharacterObject * characterObject)
{
if (characterObject == NULL) return NULL;
DataBuffer * tempBuffer = new DataBuffer(characterObject->getCreationSize()); //should be 165
int functionID = EVENT_SPAWN_PLAYER;
tempBuffer->copy(0, &functionID, 4);
unsigned long netID = characterObject->getNetID();
tempBuffer->copy(4, &netID, 4);
int playerID = characterObject->getPlayerID();
tempBuffer->copy(8, &playerID, 4);
string modelName = characterObject->getModelName();
string textureName = characterObject->getTextureName();
string shaderName = characterObject->getShaderName();
string propName = characterObject->getCollisionName();
char nullBuffer[32]; memset(nullBuffer, '\0', 32); //for (int i = 0; i < 32; i++) nullBuffer[i] = '\0';
tempBuffer->copy(12, nullBuffer, 32);
tempBuffer->copy(12, modelName.c_str(), std::min(32, (int)modelName.length()));
tempBuffer->copy(44, nullBuffer, 32);
tempBuffer->copy(44, textureName.c_str(), std::min(32, (int)textureName.length()));
tempBuffer->copy(76, nullBuffer, 32);
tempBuffer->copy(76, shaderName.c_str(), std::min(32, (int)shaderName.length()));
glm::vec3 pos = characterObject->getPosition();
tempBuffer->copy(108, &pos.x, 4);
tempBuffer->copy(112, &pos.y, 4);
tempBuffer->copy(116, &pos.z, 4);
glm::vec3 lookAt = characterObject->getDirection();
tempBuffer->copy(120, &lookAt.x, 4);
tempBuffer->copy(124, &lookAt.y, 4);
tempBuffer->copy(128, &lookAt.z, 4);
tempBuffer->copy(132, nullBuffer, 32);
tempBuffer->copy(132, propName.c_str(), std::min(32, (int)propName.length()));
tempBuffer->copy(164, "\n", 1);
return tempBuffer;
}
DataBuffer * NetworkFunctions::createSpawnPlayerRequestBuffer(int playerID, glm::vec3 pos, glm::vec3 lookAt, int classID)
{
DataBuffer * tempBuffer = new DataBuffer(165); //should be 165
int functionID = EVENT_SPAWN_PLAYER;
tempBuffer->copy(0, &functionID, 4);
unsigned long netID = 0;
tempBuffer->copy(4, &netID, 4); //0 for autoassign
tempBuffer->copy(8, &playerID, 4);
string modelName = "player";
string textureName = "error";
string shaderName = "default";
string propName = "sphere2";
if (classID == 0) {
/* Set model, texture, shader, prop by class here */
}
char nullBuffer[32]; memset(nullBuffer, '\0', 32); //for (int i = 0; i < 32; i++) nullBuffer[i] = '\0';
tempBuffer->copy(12, nullBuffer, 32);
tempBuffer->copy(12, modelName.c_str(), std::min(32, (int)modelName.length()));
tempBuffer->copy(44, nullBuffer, 32);
tempBuffer->copy(44, textureName.c_str(), std::min(32, (int)textureName.length()));
tempBuffer->copy(76, nullBuffer, 32);
tempBuffer->copy(76, shaderName.c_str(), std::min(32, (int)shaderName.length()));
tempBuffer->copy(108, &pos.x, 4);
tempBuffer->copy(112, &pos.y, 4);
tempBuffer->copy(116, &pos.z, 4);
tempBuffer->copy(120, &lookAt.x, 4);
tempBuffer->copy(124, &lookAt.y, 4);
tempBuffer->copy(128, &lookAt.z, 4);
tempBuffer->copy(132, nullBuffer, 32);
tempBuffer->copy(132, propName.c_str(), std::min(32, (int)propName.length()));
tempBuffer->copy(164, "\n", 1);
return tempBuffer;
}
int NetworkFunctions::translateReceivedEvents(Packet * serverEvents)
{
while (serverEvents->getReceiveBufferSize() > 0) {
DataBuffer * tempBuffer = new DataBuffer(MAX_PACKET_SIZE);
int charCount = 0;
int functionIndex = -1;
int bufferLength = -1;
for (int i = 0; i < serverEvents->getReceiveBufferSize(); i++) {
tempBuffer->copy(tempBuffer->getSize(), serverEvents->getReceiveBuffer() + i, 1);
if (charCount == 3) {
memcpy(&functionIndex, tempBuffer->getData(), 4);
if (functionIndex < 0 || functionIndex >= FUNCTION_COUNT || functionIndex == 10) {
while ((serverEvents->getReceiveBuffer()[i]) != '\n') i++;
tempBuffer->clear();
continue;
}
else {
bufferLength = bufferSizes[functionIndex];
}
}
if (charCount == 7 && functionIndex == EVENT_UPDATE_GAME_OBJECT) {
unsigned long netID = 0;
memcpy(&netID, tempBuffer->getData() + 4, 4);
GameObject * tempObject = gameObjects->getValue(netID);
if (tempObject == NULL) {
while ((serverEvents->getReceiveBuffer()[i]) != '\n') i++;
tempBuffer->clear();
continue;
}
/*int objectIndex = -1;
memcpy(&objectIndex, tempBuffer->getData() + 4, 4);
if (objectIndex < 0 || objectIndex >= gameObjects->size()) {
while ((serverEvents->getReceiveBuffer()[i]) != '\n') i++;
tempBuffer->clear();
continue;
}*/
else {
bufferLength = tempObject->getSerializedSize();
}
}
if (charCount == bufferLength-1) {
if (tempBuffer->getSize() == 0) {
tempBuffer->clear();
continue;
}
executeIndexedFunction(tempBuffer);
tempBuffer->clear();
charCount = 0;
continue;
}
/*if (serverEvents->getReceiveBuffer()[i] == '\n') {
if (tempBuffer->getSize() == 0) {
tempBuffer->clear();
continue;
}
executeIndexedFunction(tempBuffer);
tempBuffer->clear();
}*/
charCount++;
}
delete tempBuffer;
serverEvents->refillReceiveBuffer();
}
return 0;
}
