Convert more files to pure Objective-C
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12 changed files with 75 additions and 76 deletions
412
src/clients.m
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412
src/clients.m
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// client.cpp, mostly network related client game code
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#include "cube.h"
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#import "DynamicEntity.h"
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static ENetHost *clienthost = NULL;
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static int connecting = 0;
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static int connattempts = 0;
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static int disconnecting = 0;
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// our client id in the game
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int clientnum = -1;
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// whether we need to tell the other clients our stats
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bool c2sinit = false;
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int
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getclientnum()
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{
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return clientnum;
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}
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bool
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multiplayer()
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{
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// check not correct on listen server?
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if (clienthost)
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conoutf(@"operation not available in multiplayer");
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return clienthost != NULL;
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}
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bool
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allowedittoggle()
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{
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bool allow = !clienthost || gamemode == 1;
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if (!allow)
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conoutf(@"editing in multiplayer requires coopedit mode (1)");
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return allow;
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}
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VARF(rate, 0, 0, 25000,
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if (clienthost && (!rate || rate > 1000))
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enet_host_bandwidth_limit(clienthost, rate, rate));
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void throttle();
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VARF(throttle_interval, 0, 5, 30, throttle());
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VARF(throttle_accel, 0, 2, 32, throttle());
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VARF(throttle_decel, 0, 2, 32, throttle());
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void
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throttle()
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{
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if (!clienthost || connecting)
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return;
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assert(ENET_PEER_PACKET_THROTTLE_SCALE == 32);
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enet_peer_throttle_configure(clienthost->peers,
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throttle_interval * 1000, throttle_accel, throttle_decel);
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}
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void
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newname(OFString *name)
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{
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c2sinit = false;
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if (name.length > 16)
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name = [name substringToIndex:16];
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player1.name = name;
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}
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COMMANDN(name, newname, ARG_1STR)
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void
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newteam(OFString *name)
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{
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c2sinit = false;
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if (name.length > 5)
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name = [name substringToIndex:5];
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player1.team = name;
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}
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COMMANDN(team, newteam, ARG_1STR)
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void
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writeclientinfo(OFStream *stream)
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{
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[stream writeFormat:@"name \"%@\"\nteam \"%@\"\n", player1.name,
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player1.team];
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}
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void
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connects(OFString *servername)
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{
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disconnect(true, false); // reset state
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addserver(servername);
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conoutf(@"attempting to connect to %@", servername);
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ENetAddress address = { ENET_HOST_ANY, CUBE_SERVER_PORT };
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if (enet_address_set_host(&address, servername.UTF8String) < 0) {
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conoutf(@"could not resolve server %@", servername);
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return;
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}
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clienthost = enet_host_create(NULL, 1, rate, rate);
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if (clienthost) {
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enet_host_connect(clienthost, &address, 1);
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enet_host_flush(clienthost);
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connecting = lastmillis;
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connattempts = 0;
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} else {
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conoutf(@"could not connect to server");
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disconnect(false, false);
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}
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}
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void
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disconnect(bool onlyclean, bool async)
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{
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if (clienthost) {
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if (!connecting && !disconnecting) {
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enet_peer_disconnect(clienthost->peers);
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enet_host_flush(clienthost);
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disconnecting = lastmillis;
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}
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if (clienthost->peers->state != ENET_PEER_STATE_DISCONNECTED) {
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if (async)
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return;
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enet_peer_reset(clienthost->peers);
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}
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enet_host_destroy(clienthost);
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}
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if (clienthost && !connecting)
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conoutf(@"disconnected");
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clienthost = NULL;
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connecting = 0;
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connattempts = 0;
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disconnecting = 0;
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clientnum = -1;
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c2sinit = false;
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player1.lifesequence = 0;
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[players removeAllObjects];
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localdisconnect();
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if (!onlyclean) {
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stop();
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localconnect();
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}
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}
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void
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trydisconnect()
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{
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if (!clienthost) {
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conoutf(@"not connected");
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return;
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}
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if (connecting) {
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conoutf(@"aborting connection attempt");
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disconnect(false, false);
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return;
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}
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conoutf(@"attempting to disconnect...");
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disconnect(0, !disconnecting);
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}
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static OFString *ctext;
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void
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toserver(OFString *text)
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{
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conoutf(@"%@:\f %@", player1.name, text);
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ctext = text;
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}
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void
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echo(OFString *text)
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{
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conoutf(@"%@", text);
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}
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COMMAND(echo, ARG_VARI)
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COMMANDN(say, toserver, ARG_VARI)
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COMMANDN(connect, connects, ARG_1STR)
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COMMANDN(disconnect, trydisconnect, ARG_NONE)
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// collect c2s messages conveniently
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static OFMutableArray<OFData *> *messages;
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void
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addmsg(int rel, int num, int type, ...)
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{
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if (demoplayback)
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return;
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if (num != msgsizelookup(type))
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fatal(@"inconsistant msg size for %d (%d != %d)", type, num,
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msgsizelookup(type));
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if (messages.count == 100) {
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conoutf(@"command flood protection (type %d)", type);
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return;
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}
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OFMutableData *msg = [OFMutableData dataWithItemSize:sizeof(int)
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capacity:num + 2];
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[msg addItem:&num];
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[msg addItem:&rel];
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[msg addItem:&type];
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va_list marker;
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va_start(marker, type);
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loopi(num - 1)
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{
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int tmp = va_arg(marker, int);
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[msg addItem:&tmp];
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}
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va_end(marker);
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[msg makeImmutable];
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if (messages == nil)
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messages = [[OFMutableArray alloc] init];
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[messages addObject:msg];
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}
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void
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server_err()
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{
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conoutf(@"server network error, disconnecting...");
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disconnect(false, false);
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}
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int lastupdate = 0, lastping = 0;
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OFString *toservermap;
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bool senditemstoserver =
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false; // after a map change, since server doesn't have map data
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OFString *clientpassword;
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void
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password(OFString *p)
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{
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clientpassword = p;
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}
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COMMAND(password, ARG_1STR)
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bool
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netmapstart()
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{
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senditemstoserver = true;
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return clienthost != NULL;
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}
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void
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initclientnet()
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{
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ctext = @"";
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toservermap = @"";
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clientpassword = @"";
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newname(@"unnamed");
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newteam(@"red");
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}
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void
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sendpackettoserv(void *packet)
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{
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if (clienthost) {
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enet_host_broadcast(clienthost, 0, (ENetPacket *)packet);
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enet_host_flush(clienthost);
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} else
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localclienttoserver((ENetPacket *)packet);
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}
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// send update to the server
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void
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c2sinfo(DynamicEntity *d)
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{
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if (clientnum < 0)
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return; // we haven't had a welcome message from the server yet
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if (lastmillis - lastupdate < 40)
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return; // don't update faster than 25fps
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ENetPacket *packet = enet_packet_create(NULL, MAXTRANS, 0);
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uchar *start = packet->data;
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uchar *p = start + 2;
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bool serveriteminitdone = false;
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// suggest server to change map
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if (toservermap.length > 0) {
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// do this exclusively as map change may invalidate rest of
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// update
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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putint(&p, SV_MAPCHANGE);
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sendstring(toservermap, &p);
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toservermap = @"";
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putint(&p, nextmode);
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} else {
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putint(&p, SV_POS);
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putint(&p, clientnum);
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// quantize coordinates to 1/16th of a cube, between 1 and 3
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// bytes
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putint(&p, (int)(d.o.x * DMF));
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putint(&p, (int)(d.o.y * DMF));
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putint(&p, (int)(d.o.z * DMF));
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putint(&p, (int)(d.yaw * DAF));
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putint(&p, (int)(d.pitch * DAF));
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putint(&p, (int)(d.roll * DAF));
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// quantize to 1/100, almost always 1 byte
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putint(&p, (int)(d.vel.x * DVF));
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putint(&p, (int)(d.vel.y * DVF));
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putint(&p, (int)(d.vel.z * DVF));
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// pack rest in 1 byte: strafe:2, move:2, onfloor:1, state:3
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putint(&p,
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(d.strafe & 3) | ((d.move & 3) << 2) |
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(((int)d.onfloor) << 4) |
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((editmode ? CS_EDITING : d.state) << 5));
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if (senditemstoserver) {
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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putint(&p, SV_ITEMLIST);
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if (!m_noitems)
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putitems(&p);
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putint(&p, -1);
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senditemstoserver = false;
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serveriteminitdone = true;
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}
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// player chat, not flood protected for now
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if (ctext.length > 0) {
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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putint(&p, SV_TEXT);
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sendstring(ctext, &p);
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ctext = @"";
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}
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// tell other clients who I am
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if (!c2sinit) {
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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c2sinit = true;
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putint(&p, SV_INITC2S);
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sendstring(player1.name, &p);
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sendstring(player1.team, &p);
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putint(&p, player1.lifesequence);
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}
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for (OFData *msg in messages) {
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// send messages collected during the previous frames
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if (*(int *)[msg itemAtIndex:1])
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packet->flags = ENET_PACKET_FLAG_RELIABLE;
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loopi(*(int *)[msg itemAtIndex:0])
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putint(&p, *(int *)[msg itemAtIndex:i + 2]);
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}
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[messages removeAllObjects];
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if (lastmillis - lastping > 250) {
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putint(&p, SV_PING);
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putint(&p, lastmillis);
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lastping = lastmillis;
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}
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}
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*(ushort *)start = ENET_HOST_TO_NET_16(p - start);
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enet_packet_resize(packet, p - start);
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incomingdemodata(start, p - start, true);
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if (clienthost) {
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enet_host_broadcast(clienthost, 0, packet);
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enet_host_flush(clienthost);
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} else
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localclienttoserver(packet);
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lastupdate = lastmillis;
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if (serveriteminitdone)
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loadgamerest(); // hack
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}
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void
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gets2c() // get updates from the server
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{
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ENetEvent event;
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if (!clienthost)
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return;
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if (connecting && lastmillis / 3000 > connecting / 3000) {
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conoutf(@"attempting to connect...");
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connecting = lastmillis;
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++connattempts;
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if (connattempts > 3) {
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conoutf(@"could not connect to server");
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disconnect(false, false);
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return;
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}
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}
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while (
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clienthost != NULL && enet_host_service(clienthost, &event, 0) > 0)
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switch (event.type) {
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case ENET_EVENT_TYPE_CONNECT:
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conoutf(@"connected to server");
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connecting = 0;
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throttle();
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break;
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case ENET_EVENT_TYPE_RECEIVE:
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if (disconnecting)
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conoutf(@"attempting to disconnect...");
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else
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localservertoclient(event.packet->data,
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event.packet->dataLength);
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enet_packet_destroy(event.packet);
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break;
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case ENET_EVENT_TYPE_DISCONNECT:
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if (disconnecting)
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disconnect(false, false);
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else
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server_err();
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return;
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}
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}
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