gamebase.java

Jake2是一个Java 3D游戏引擎.

    public static edict_t obstacle;

    public static int c_yes, c_no;

    public static int STEPSIZE = 18;

    /**
     * G_RunEntity
     */
    public static void G_RunEntity(edict_t ent) {

        if (ent.prethink != null)
            ent.prethink.think(ent);

        switch ((int) ent.movetype) {
        case Defines.MOVETYPE_PUSH:
        case Defines.MOVETYPE_STOP:
            SV.SV_Physics_Pusher(ent);
            break;
        case Defines.MOVETYPE_NONE:
            SV.SV_Physics_None(ent);
            break;
        case Defines.MOVETYPE_NOCLIP:
            SV.SV_Physics_Noclip(ent);
            break;
        case Defines.MOVETYPE_STEP:
            SV.SV_Physics_Step(ent);
            break;
        case Defines.MOVETYPE_TOSS:
        case Defines.MOVETYPE_BOUNCE:
        case Defines.MOVETYPE_FLY:
        case Defines.MOVETYPE_FLYMISSILE:
            SV.SV_Physics_Toss(ent);
            break;
        default:
            gi.error("SV_Physics: bad movetype " + (int) ent.movetype);
        }
    }

    public static void ClearBounds(float[] mins, float[] maxs) {
        mins[0] = mins[1] = mins[2] = 99999;
        maxs[0] = maxs[1] = maxs[2] = -99999;
    }

    public static void AddPointToBounds(float[] v, float[] mins, float[] maxs) {
        int i;
        float val;

        for (i = 0; i < 3; i++) {
            val = v[i];
            if (val < mins[i])
                mins[i] = val;
            if (val > maxs[i])
                maxs[i] = val;
        }
    }

    public static EdictFindFilter findByTarget = new EdictFindFilter() {
        public boolean matches(edict_t e, String s) {
            if (e.targetname == null)
                return false;
            return e.targetname.equalsIgnoreCase(s);
        }
    };

    public static EdictFindFilter findByClass = new EdictFindFilter() {
        public boolean matches(edict_t e, String s) {
            return e.classname.equalsIgnoreCase(s);
        }
    };

    public static void ShutdownGame() {
        gi.dprintf("==== ShutdownGame ====\n");
    }

    /**
     * ClientEndServerFrames.
     */
    public static void ClientEndServerFrames() {
        int i;
        edict_t ent;

        // calc the player views now that all pushing
        // and damage has been added
        for (i = 0; i < maxclients.value; i++) {
            ent = g_edicts[1 + i];
            if (!ent.inuse || null == ent.client)
                continue;
            PlayerView.ClientEndServerFrame(ent);
        }

    }

    /**
     * Returns the created target changelevel.
     */
    public static edict_t CreateTargetChangeLevel(String map) {
        edict_t ent;

        ent = GameUtil.G_Spawn();
        ent.classname = "target_changelevel";
        level.nextmap = map;
        ent.map = level.nextmap;
        return ent;
    }

    /**
     * The timelimit or fraglimit has been exceeded.
     */
    public static void EndDMLevel() {
        edict_t ent;
        //char * s, * t, * f;
        //static const char * seps = " ,\n\r";
        String s, t, f;
        String seps = " ,\n\r";

        // stay on same level flag
        if (((int) dmflags.value & Defines.DF_SAME_LEVEL) != 0) {
            PlayerHud.BeginIntermission(CreateTargetChangeLevel(level.mapname));
            return;
        }

        // see if it's in the map list
        if (sv_maplist.string.length() > 0) {
            s = sv_maplist.string;
            f = null;
            StringTokenizer tk = new StringTokenizer(s, seps);
            
            while (tk.hasMoreTokens()){
            	t = tk.nextToken();
     
            	// store first map
            	if (f == null)
            		f = t;
            	
                if (t.equalsIgnoreCase(level.mapname)) {
                    // it's in the list, go to the next one
                	if (!tk.hasMoreTokens()) {
                		// end of list, go to first one
                        if (f == null) // there isn't a first one, same level
                            PlayerHud.BeginIntermission(CreateTargetChangeLevel(level.mapname));
                        else
                            PlayerHud.BeginIntermission(CreateTargetChangeLevel(f));
                    } else
                        PlayerHud.BeginIntermission(CreateTargetChangeLevel(tk.nextToken()));
                    return;
                }
            }
        }

        //not in the map list
        if (level.nextmap.length() > 0) // go to a specific map
            PlayerHud.BeginIntermission(CreateTargetChangeLevel(level.nextmap));
        else { // search for a changelevel
            EdictIterator edit = null;
            edit = G_Find(edit, findByClass, "target_changelevel");
            if (edit == null) { // the map designer didn't include a
                                // changelevel,
                // so create a fake ent that goes back to the same level
                PlayerHud.BeginIntermission(CreateTargetChangeLevel(level.mapname));
                return;
            }
            ent = edit.o;
            PlayerHud.BeginIntermission(ent);
        }
    }

    /**
     * CheckNeedPass.
     */
    public static void CheckNeedPass() {
        int need;

        // if password or spectator_password has changed, update needpass
        // as needed
        if (password.modified || spectator_password.modified) {
            password.modified = spectator_password.modified = false;

            need = 0;

            if ((password.string.length() > 0)
                    && 0 != Lib.Q_stricmp(password.string, "none"))
                need |= 1;
            if ((spectator_password.string.length() > 0)
                    && 0 != Lib.Q_stricmp(spectator_password.string, "none"))
                need |= 2;

            gi.cvar_set("needpass", "" + need);
        }
    }

    /**
     * CheckDMRules.
     */
    public static void CheckDMRules() {
        int i;
        gclient_t cl;

        if (level.intermissiontime != 0)
            return;

        if (0 == deathmatch.value)
            return;

        if (timelimit.value != 0) {
            if (level.time >= timelimit.value * 60) {
                gi.bprintf(Defines.PRINT_HIGH, "Timelimit hit.\n");
                EndDMLevel();
                return;
            }
        }

        if (fraglimit.value != 0) {
            for (i = 0; i < maxclients.value; i++) {
                cl = game.clients[i];
                if (!g_edicts[i + 1].inuse)
                    continue;

                if (cl.resp.score >= fraglimit.value) {
                    gi.bprintf(Defines.PRINT_HIGH, "Fraglimit hit.\n");
                    EndDMLevel();
                    return;
                }
            }
        }
    }

    /**
     * Exits a level.
     */
    public static void ExitLevel() {
        int i;
        edict_t ent;

        String command = "gamemap \"" + level.changemap + "\"\n";
        gi.AddCommandString(command);
        level.changemap = null;
        level.exitintermission = false;
        level.intermissiontime = 0;
        ClientEndServerFrames();

        // clear some things before going to next level
        for (i = 0; i < maxclients.value; i++) {
            ent = g_edicts[1 + i];
            if (!ent.inuse)
                continue;
            if (ent.health > ent.client.pers.max_health)
                ent.health = ent.client.pers.max_health;
        }
    }

    /**
     * G_RunFrame
     *  
     * Advances the world by Defines.FRAMETIME (0.1) seconds.
     */
    public static void G_RunFrame() {
        int i;
        edict_t ent;

        level.framenum++;
        level.time = level.framenum * Defines.FRAMETIME;

        // choose a client for monsters to target this frame
        GameAI.AI_SetSightClient();

        // exit intermissions

        if (level.exitintermission) {
            ExitLevel();
            return;
        }

        //
        // treat each object in turn
        // even the world gets a chance to think
        //

        for (i = 0; i < num_edicts; i++) {
            ent = g_edicts[i];
            if (!ent.inuse)
                continue;

            level.current_entity = ent;

            Math3D.VectorCopy(ent.s.origin, ent.s.old_origin);

            // if the ground entity moved, make sure we are still on it
            if ((ent.groundentity != null)
                    && (ent.groundentity.linkcount != ent.groundentity_linkcount)) {
                ent.groundentity = null;
                if (0 == (ent.flags & (Defines.FL_SWIM | Defines.FL_FLY))
                        && (ent.svflags & Defines.SVF_MONSTER) != 0) {
                    M.M_CheckGround(ent);
                }
            }

            if (i > 0 && i <= maxclients.value) {
                PlayerClient.ClientBeginServerFrame(ent);
                continue;
            }

            G_RunEntity(ent);
        }

        // see if it is time to end a deathmatch
        CheckDMRules();

        // see if needpass needs updated
        CheckNeedPass();

        // build the playerstate_t structures for all players
        ClientEndServerFrames();
    }

    /**
     * This return a pointer to the structure with all entry points and global
     * variables. 
     */

    public static void GetGameApi(game_import_t imp) {
        gi = imp;
        gi.pointcontents = new pmove_t.PointContentsAdapter() {
            public int pointcontents(float[] o) {
                return SV_WORLD.SV_PointContents(o);
            }
        };
    }
}