sv_init.java

Jake2是一个Java 3D游戏引擎.

/*
 * Copyright (C) 1997-2001 Id Software, Inc.
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.
 * 
 * See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA.
 *  
 */

// Created on 14.01.2004 by RST.
// $Id: SV_INIT.java,v 1.17 2006/01/20 22:44:07 salomo Exp $
package jake2.server;

import jake2.Defines;
import jake2.Globals;
import jake2.client.CL;
import jake2.client.SCR;
import jake2.game.*;
import jake2.qcommon.*;
import jake2.sys.NET;
import jake2.util.Lib;
import jake2.util.Math3D;

import java.io.IOException;
import java.io.RandomAccessFile;

public class SV_INIT {

    /**
     * SV_FindIndex.
     */
    public static int SV_FindIndex(String name, int start, int max,
            boolean create) {
        int i;

        if (name == null || name.length() == 0)
            return 0;

        for (i = 1; i < max && sv.configstrings[start + i] != null; i++)
            if (0 == Lib.strcmp(sv.configstrings[start + i], name))
                return i;

        if (!create)
            return 0;

        if (i == max)
            Com.Error(Defines.ERR_DROP, "*Index: overflow");

        sv.configstrings[start + i] = name;

        if (sv.state != Defines.ss_loading) { 
            // send the update to everyone
            SZ.Clear(sv.multicast);
            MSG.WriteChar(sv.multicast, Defines.svc_configstring);
            MSG.WriteShort(sv.multicast, start + i);
            MSG.WriteString(sv.multicast, name);
            SV_SEND.SV_Multicast(Globals.vec3_origin, Defines.MULTICAST_ALL_R);
        }

        return i;
    }

    public static int SV_ModelIndex(String name) {
        return SV_FindIndex(name, Defines.CS_MODELS, Defines.MAX_MODELS, true);
    }

    public static int SV_SoundIndex(String name) {
        return SV_FindIndex(name, Defines.CS_SOUNDS, Defines.MAX_SOUNDS, true);
    }

    public static int SV_ImageIndex(String name) {
        return SV_FindIndex(name, Defines.CS_IMAGES, Defines.MAX_IMAGES, true);
    }

    /**
     * SV_CreateBaseline
     * 
     * Entity baselines are used to compress the update messages to the clients --
     * only the fields that differ from the baseline will be transmitted.
     */
    public static void SV_CreateBaseline() {
        edict_t svent;
        int entnum;

        for (entnum = 1; entnum < GameBase.num_edicts; entnum++) {
            svent = GameBase.g_edicts[entnum];

            if (!svent.inuse)
                continue;
            if (0 == svent.s.modelindex && 0 == svent.s.sound
                    && 0 == svent.s.effects)
                continue;
            
            svent.s.number = entnum;

            // take current state as baseline
            Math3D.VectorCopy(svent.s.origin, svent.s.old_origin);
            sv.baselines[entnum].set(svent.s);
        }
    }

    /** 
     * SV_CheckForSavegame.
     */
    public static void SV_CheckForSavegame() {

        String name;
        RandomAccessFile f;

        int i;

        if (SV_MAIN.sv_noreload.value != 0)
            return;

        if (Cvar.VariableValue("deathmatch") != 0)
            return;

        name = FS.Gamedir() + "/save/current/" + sv.name + ".sav";
        try {
            f = new RandomAccessFile(name, "r");
        }

        catch (Exception e) {
            return;
        }

        try {
            f.close();
        } catch (IOException e1) {
            e1.printStackTrace();
        }

        SV_WORLD.SV_ClearWorld();

        // get configstrings and areaportals
        SV_CCMDS.SV_ReadLevelFile();

        if (!sv.loadgame) { 
            // coming back to a level after being in a different
            // level, so run it for ten seconds

            // rlava2 was sending too many lightstyles, and overflowing the
            // reliable data. temporarily changing the server state to loading
            // prevents these from being passed down.
            int previousState; // PGM

            previousState = sv.state; // PGM
            sv.state = Defines.ss_loading; // PGM
            for (i = 0; i < 100; i++)
                GameBase.G_RunFrame();

            sv.state = previousState; // PGM
        }
    }

    /**
     * SV_SpawnServer.
     * 
     * Change the server to a new map, taking all connected clients along with
     * it.
     */
    public static void SV_SpawnServer(String server, String spawnpoint,
            int serverstate, boolean attractloop, boolean loadgame) {
        int i;
        int checksum = 0;

        if (attractloop)
            Cvar.Set("paused", "0");

        Com.Printf("------- Server Initialization -------\n");

        Com.DPrintf("SpawnServer: " + server + "\n");
        if (sv.demofile != null)
            try {
                sv.demofile.close();
            } 
        	catch (Exception e) {
            }

        // any partially connected client will be restarted
        svs.spawncount++;        

        sv.state = Defines.ss_dead;

        Globals.server_state = sv.state;

        // wipe the entire per-level structure
        sv = new server_t();

        svs.realtime = 0;
        sv.loadgame = loadgame;
        sv.attractloop = attractloop;

        // save name for levels that don't set message
        sv.configstrings[Defines.CS_NAME] = server;

        if (Cvar.VariableValue("deathmatch") != 0) {
            sv.configstrings[Defines.CS_AIRACCEL] = ""
                    + SV_MAIN.sv_airaccelerate.value;
            PMove.pm_airaccelerate = SV_MAIN.sv_airaccelerate.value;
        } else {
            sv.configstrings[Defines.CS_AIRACCEL] = "0";
            PMove.pm_airaccelerate = 0;
        }

        SZ.Init(sv.multicast, sv.multicast_buf, sv.multicast_buf.length);

        sv.name = server;

        // leave slots at start for clients only
        for (i = 0; i < SV_MAIN.maxclients.value; i++) {
            // needs to reconnect
            if (svs.clients[i].state > Defines.cs_connected)
                svs.clients[i].state = Defines.cs_connected;
            svs.clients[i].lastframe = -1;
        }

        sv.time = 1000;

        sv.name = server;
        sv.configstrings[Defines.CS_NAME] = server;

        int iw[] = { checksum };

        if (serverstate != Defines.ss_game) {
            sv.models[1] = CM.CM_LoadMap("", false, iw); // no real map
        } else {
            sv.configstrings[Defines.CS_MODELS + 1] = "maps/" + server + ".bsp";