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/*
* Created on Dec 22, 2004
*
* Copyright (C) 2003
*
* $Id: PlaySound.java,v 1.2 2005-05-08 13:37:46 cawe Exp $
*/
/*
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.
*/
package jake2.sound.lwjgl;
import jake2.Globals;
import jake2.util.Math3D;
/**
* PlaySound
*
* @author cwei
*/
public class PlaySound {
final static int MAX_PLAYSOUNDS = 128;
// list with sentinel
private static PlaySound freeList;
private static PlaySound playableList;
private static PlaySound[] backbuffer = new PlaySound[MAX_PLAYSOUNDS];
static {
for (int i = 0; i < backbuffer.length; i++) {
backbuffer[i] = new PlaySound();
}
// init the sentinels
freeList = new PlaySound();
playableList = new PlaySound();
// reset the lists
reset();
}
// sound attributes
int type;
int entnum;
int entchannel;
int bufferId;
float volume;
float attenuation;
float[] origin = {0,0,0};
// begin time in ms
private long beginTime;
// for linked list
private PlaySound prev, next;
private PlaySound() {
prev = next = null;
this.clear();
}
private void clear() {
type = bufferId = entnum = entchannel = -1;
// volume = attenuation = beginTime = 0;
attenuation = beginTime = 0;
// Math3D.VectorClear(origin);
}
static void reset() {
// init the sentinels
freeList.next = freeList.prev = freeList;
playableList.next = playableList.prev = playableList;
// concat the the freeList
PlaySound ps;
for (int i = 0; i < backbuffer.length; i++) {
ps = backbuffer[i];
ps.clear();
ps.prev = freeList;
ps.next = freeList.next;
ps.prev.next = ps;
ps.next.prev = ps;
}
}
static PlaySound nextPlayableSound() {
PlaySound ps = null;
while (true) {
ps = playableList.next;
if (ps == playableList || ps.beginTime > Globals.cl.time)
return null;
PlaySound.release(ps);
return ps;
}
}
private static PlaySound get() {
PlaySound ps = freeList.next;
if (ps == freeList)
return null;
ps.prev.next = ps.next;
ps.next.prev = ps.prev;
return ps;
}
private static void add(PlaySound ps) {
PlaySound sort = playableList.next;
for (; sort != playableList && sort.beginTime < ps.beginTime; sort = sort.next);
ps.next = sort;
ps.prev = sort.prev;
ps.next.prev = ps;
ps.prev.next = ps;
}
private static void release(PlaySound ps) {
ps.prev.next = ps.next;
ps.next.prev = ps.prev;
// add to free list
ps.next = freeList.next;
freeList.next.prev = ps;
ps.prev = freeList;
freeList.next = ps;
}
static void allocate(float[] origin, int entnum, int entchannel,
int bufferId, float volume, float attenuation, float timeoffset) {
PlaySound ps = PlaySound.get();
if (ps != null) {
// find the right sound type
if (entnum == Globals.cl.playernum + 1) {
ps.type = Channel.LISTENER;
} else if (origin != null) {
ps.type = Channel.FIXED;
Math3D.VectorCopy(origin, ps.origin);
} else {
ps.type = Channel.DYNAMIC;
}
ps.entnum = entnum;
ps.entchannel = entchannel;
ps.bufferId = bufferId;
ps.volume = volume;
ps.attenuation = attenuation;
ps.beginTime = Globals.cl.time + (long)(timeoffset * 1000);
PlaySound.add(ps);
} else {
System.err.println("PlaySounds out of Limit");
}
}
}
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