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/*
* Polygon.java
* Copyright (C) 2003
*
* $Id: Polygon.java,v 1.2 2006-11-21 00:50:46 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.render.basic;
import jake2.render.glpoly_t;
/**
* Polygon
*
* @author cwei
*/
public final class Polygon extends glpoly_t {
private final static int MAXPOLYS = 20000;
private final static int MAX_BUFFER_VERTICES = 120000;
private static float[] buffer = new float[MAX_BUFFER_VERTICES * STRIDE];
private static int bufferIndex = 0;
private static int polyCount = 0;
private static Polygon[] polyCache = new Polygon[MAXPOLYS];
static {
for (int i = 0; i < polyCache.length; i++) {
polyCache[i] = new Polygon();
}
}
public static glpoly_t create(int numverts) {
Polygon poly = polyCache[polyCount++];
poly.clear();
poly.numverts = numverts;
poly.pos = bufferIndex;
bufferIndex += numverts;
return poly;
}
public static void reset() {
polyCount = 0;
bufferIndex = 0;
}
private Polygon() {
}
private final void clear() {
next = null;
chain = null;
numverts = 0;
flags = 0;
}
public final float x(int index) {
return buffer[offset(index)];
}
public final void x(int index, float value) {
buffer[offset(index)] = value;
}
public final float y(int index) {
return buffer[offset(index) + 1];
}
public final void y(int index, float value) {
buffer[offset(index) + 1] = value;
}
public final float z(int index) {
return buffer[offset(index) + 2];
}
public final void z(int index, float value) {
buffer[offset(index) + 2] = value;
}
public final float s1(int index) {
return buffer[offset(index) + 3];
}
public final void s1(int index, float value) {
buffer[offset(index) + 3] = value;
}
public final float t1(int index) {
return buffer[offset(index) + 4];
}
public final void t1(int index, float value) {
buffer[offset(index) + 4] = value;
}
public final float s2(int index) {
return buffer[offset(index) + 5];
}
public final void s2(int index, float value) {
buffer[offset(index) + 5] = value;
}
public final float t2(int index) {
return buffer[offset(index) + 6];
}
public final void t2(int index, float value) {
buffer[offset(index) + 6] = value;
}
public final void beginScrolling(float value) {
// not in use
}
public final void endScrolling() {
// not in use
}
private final int offset(int index) {
return (index + pos) * STRIDE;
}
}
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