[1168] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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| 23 | * Dumeni Manatschal, (C) 2007 |
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| 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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[1180] | 28 | |
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| 29 | /* |
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| 30 | * Class generates packets that can be send by enet |
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| 31 | * ->don't read this without the class PacketDecoder, since they belong together |
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| 32 | * |
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| 33 | * Autor: Dumeni Manatschal |
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| 34 | * |
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| 35 | */ |
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| 36 | |
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| 37 | #include "PacketManager.h" |
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| 38 | #include "PacketTypes.h" |
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| 39 | |
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| 40 | #include <iostream> |
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| 41 | #include <list> |
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| 42 | #include <string> |
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| 43 | #include <cstring> |
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| 44 | |
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| 45 | |
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| 46 | namespace network |
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| 47 | { |
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| 48 | PacketGenerator::PacketGenerator() { } |
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| 49 | |
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| 50 | //following functions create a packet in form of bytestream |
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| 51 | |
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| 52 | ENetPacket* PacketGenerator::acknowledgement( int state, int reliable ) |
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| 53 | { |
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| 54 | COUT(4) << "PacketGenerator: generating new acknowledgement, id: " << state << std::endl; |
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| 55 | ack* ackreq = new ack; |
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| 56 | ackreq->id = ACK; |
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| 57 | ackreq->a = state; |
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| 58 | |
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| 59 | ENetPacket *packet = enet_packet_create( ackreq , sizeof( *ackreq ), reliable ); |
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[1248] | 60 | delete ackreq; |
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[1180] | 61 | return packet; |
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| 62 | } |
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[1232] | 63 | |
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| 64 | ENetPacket* command( int dataLength, void *data, int reliable = ENET_PACKET_FLAG_RELIABLE ) |
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| 65 | { |
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| 66 | void *stream = new char[dataLength + 2*sizeof(int)]; |
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| 67 | if(!stream) |
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| 68 | return NULL; |
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| 69 | packet_id a = COMMAND; |
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| 70 | memcpy(stream, (void*)&a, sizeof(int)); |
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| 71 | memcpy((unsigned char *)stream+sizeof(int), (void*)&dataLength, sizeof(int)); |
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| 72 | memcpy((unsigned char *)stream+2*sizeof(int), data, dataLength); |
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[1248] | 73 | ENetPacket *packet = enet_packet_create(stream, dataLength+2*sizeof(int), reliable); |
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| 74 | delete[] stream; // TODO: we could also tell enet not to copy the data, but to use the exisiting memory |
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| 75 | return packet; |
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[1232] | 76 | } |
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[1180] | 77 | |
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| 78 | /*### mouseupdates */ |
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| 79 | ENetPacket* PacketGenerator::mousem( double x, double y, int reliable ) |
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| 80 | { |
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| 81 | COUT(4) << "PacketGenerator: generating new mouse" << std::endl; |
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| 82 | mouse* mousemove = new mouse; |
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| 83 | mousemove->id = MOUSE; |
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| 84 | mousemove->x = x; |
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| 85 | mousemove->y = y; |
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| 86 | |
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| 87 | ENetPacket *packet = enet_packet_create( mousemove , sizeof( *mousemove ), reliable ); |
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[1248] | 88 | delete mousemove; |
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[1180] | 89 | return packet; |
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| 90 | } |
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| 91 | |
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| 92 | /*### keystrikes updates */ |
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| 93 | ENetPacket* PacketGenerator::keystrike( char press, int reliable ) |
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| 94 | { |
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| 95 | COUT(4) << "PacketGenerator: generating new keyboard" << std::endl; |
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| 96 | keyboard* key = new keyboard; |
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| 97 | key->id = KEYBOARD; |
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| 98 | key->press = press; |
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| 99 | |
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| 100 | ENetPacket *packet = enet_packet_create( key , sizeof( *key ), reliable ); |
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[1248] | 101 | delete key; |
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[1180] | 102 | return packet; |
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| 103 | } |
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| 104 | |
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| 105 | /*### chat messages packet */ |
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| 106 | ENetPacket* PacketGenerator::chatMessage( const char* message, int reliable ) |
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| 107 | { |
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| 108 | int* trans = new int[sizeof(int) + strlen(message) + 1]; |
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| 109 | *trans = CHAT; |
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| 110 | //be carefull here, don't forget to allocate the space before using it ;-) |
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| 111 | memcpy( &trans[1], (const void*)message, strlen( message ) + 1); |
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| 112 | ENetPacket *packet = enet_packet_create( trans , sizeof( int ) + strlen( message ) + 1, reliable ); |
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[1248] | 113 | delete[] trans; |
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[1180] | 114 | return packet; |
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| 115 | } |
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| 116 | |
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| 117 | /*### gamestate packet */ |
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| 118 | ENetPacket* PacketGenerator::gstate( GameStateCompressed* states, int reliable ) |
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| 119 | { |
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| 120 | //std::cout << "packetgenerator" << std::endl; |
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| 121 | //std::cout << "states->normsize " << states->normsize << std::endl; |
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| 122 | //std::cout << "states->compsize " << states->compsize << std::endl; |
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| 123 | int gid = GAMESTATE; //first assign the correct enet id |
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[1232] | 124 | int totalLen = 5*sizeof( int ) + 2*sizeof(bool) + states->compsize; //calculate the total size of the datastream memory |
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[1180] | 125 | //std::cout << "totalLen " << totalLen << std::endl; |
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[1232] | 126 | //unsigned char *data = (unsigned char*)malloc( totalLen ); //allocate the memory for datastream |
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| 127 | unsigned char *data = new unsigned char[totalLen]; |
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[1180] | 128 | memcpy( (void*)(data), (const void*)&gid, sizeof( int ) ); //this is the enet id |
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| 129 | memcpy( (void*)(data+sizeof(int)), (const void*)&(states->id), sizeof(int) ); //the GameStateCompressed id |
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| 130 | memcpy( (void*)(data+2*sizeof(int)), (const void*)&(states->compsize), sizeof(int)); |
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| 131 | memcpy( (void*)(data+3*sizeof(int)), (const void*)&(states->normsize), sizeof(int)); |
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| 132 | memcpy( (void*)(data+4*sizeof(int)), (const void*)&(states->base_id), sizeof(int)); |
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| 133 | memcpy( (void*)(data+5*sizeof(int)), (const void*)&(states->diffed), sizeof(bool)); |
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| 134 | //place the GameStateCompressed data at the end of the enet datastream |
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[1232] | 135 | memcpy( (void*)(data+5*sizeof( int ) + sizeof(bool)), (const void*)&(states->complete), sizeof(bool) ); |
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| 136 | memcpy( (void*)(data+5*sizeof( int ) + 2*sizeof(bool)), (const void*)states->data, states->compsize ); |
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[1180] | 137 | //create an enet packet with the generated bytestream |
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| 138 | COUT(4) << "PacketGenerator generating totalLen " << totalLen << std::endl; |
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| 139 | ENetPacket *packet = enet_packet_create( data , totalLen, reliable ); |
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[1248] | 140 | delete[] data; |
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[1180] | 141 | return packet; |
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| 142 | } |
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| 143 | |
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| 144 | ENetPacket* PacketGenerator::clid( int classid, std::string classname, int reliable ) |
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| 145 | { |
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[1232] | 146 | //unsigned char* data = (unsigned char *)malloc(3*sizeof(int)+classname.length()+1); |
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| 147 | unsigned char *data = new unsigned char[3*sizeof(int)+classname.length()+1]; |
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[1180] | 148 | std::cout << "PacketGenerator: classid: " << classid << ", name: " << classname << std::endl; |
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| 149 | *(int *)data = CLASSID; |
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| 150 | *((int *)data+1) = classname.length()+1; |
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| 151 | *((int *)data+2) = classid; |
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| 152 | memcpy( (void *)(data+3*sizeof(int)), classname.c_str(), classname.length()+1); |
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| 153 | ENetPacket *packet = enet_packet_create( data , 3*sizeof(int)+classname.length()+1, reliable ); |
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[1248] | 154 | delete[] data; |
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[1180] | 155 | return packet; |
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| 156 | } |
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[1232] | 157 | |
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| 158 | ENetPacket* PacketGenerator::generateWelcome( int clientID,int shipID, bool allowed , int reliable ){ |
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| 159 | welcome *wc = new welcome; |
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| 160 | wc->id = WELCOME; |
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| 161 | wc->clientID = clientID; |
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| 162 | wc->shipID = shipID; |
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| 163 | wc->allowed = true; |
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| 164 | ENetPacket *packet = enet_packet_create( wc, sizeof(welcome), reliable); |
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[1248] | 165 | delete wc; |
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[1232] | 166 | return packet; |
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| 167 | } |
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| 168 | |
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| 169 | ENetPacket* PacketGenerator::generateConnectRequest( int reliable ){ |
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| 170 | connectRequest *con = new connectRequest; |
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| 171 | con->id=CONNECT; |
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[1248] | 172 | ENetPacket *packet = enet_packet_create( con, sizeof(connectRequest), reliable); |
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| 173 | delete con; |
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| 174 | return packet; |
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[1232] | 175 | } |
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[1180] | 176 | |
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| 177 | } |
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