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package ru.olamedia.geom;
import javax.vecmath.Point3f;
import ru.olamedia.asset.SpriteRectangle;
public class SimpleQuadMesh extends Mesh {
public boolean restart = true;
public Point3f bottomLeftBack = new Point3f();
public Point3f bottomLeftFront = new Point3f();
public Point3f bottomRightBack = new Point3f();
public Point3f bottomRightFront = new Point3f();
public Point3f topLeftBack = new Point3f();
public Point3f topLeftFront = new Point3f();
public Point3f topRightBack = new Point3f();
public Point3f topRightFront = new Point3f();
public float textureTop = 1;
public float textureBottom = 0;
public float textureLeft = 0;
public float textureRight = 1;
public void restart() {
restart = true;
}
public void start() {
restart = false;
}
public SimpleQuadMesh(int size) {
super(size * 4);
}
public void addBottomLeftBackVertex() {
setPoint3f(bottomLeftBack);
}
public void addBottomLeftFrontVertex() {
setPoint3f(bottomLeftFront);
}
public void addBottomRightBackVertex() {
setPoint3f(bottomRightBack);
}
public void addBottomRightFrontVertex() {
setPoint3f(bottomRightFront);
}
public void addTopLeftBackVertex() {
setPoint3f(topLeftBack);
}
public void addTopLeftFrontVertex() {
setPoint3f(topLeftFront);
}
public void addTopRightBackVertex() {
setPoint3f(topRightBack);
}
public void addTopRightFrontVertex() {
setPoint3f(topRightFront);
}
public void addFrontQuad() {
// triangle strip: И
setUV(textureLeft, textureTop);
addTopLeftFrontVertex(); // top left
setUV(textureLeft, textureBottom);
addBottomLeftFrontVertex(); // bottom left
setUV(textureRight, textureBottom);
addBottomRightFrontVertex(); // bottom right
setUV(textureRight, textureTop);
addTopRightFrontVertex(); // top right
}
public void addBackQuad() {
// triangle strip: И
setUV(textureLeft, textureTop);
addTopRightBackVertex();
setUV(textureLeft, textureBottom);
addBottomRightBackVertex();
setUV(textureRight, textureBottom);
addBottomLeftBackVertex();
setUV(textureRight, textureTop);
addTopLeftBackVertex();
}
public void addLeftQuad() {
// triangle strip: И
setUV(textureLeft, textureTop);
addTopLeftBackVertex();
setUV(textureLeft, textureBottom);
addBottomLeftBackVertex();
setUV(textureRight, textureBottom);
addBottomLeftFrontVertex();
setUV(textureRight, textureTop);
addTopLeftFrontVertex();
}
public void addRightQuad() {
// triangle strip: И
setUV(textureLeft, textureTop);
addTopRightFrontVertex();
setUV(textureLeft, textureBottom);
addBottomRightFrontVertex();
setUV(textureRight, textureBottom);
addBottomRightBackVertex();
setUV(textureRight, textureTop);
addTopRightBackVertex();
}
public void addTopQuad() {
// triangle strip: И
setUV(textureLeft, textureBottom);
addTopLeftBackVertex();
setUV(textureLeft, textureTop);
addTopLeftFrontVertex();
setUV(textureRight, textureTop);
addTopRightFrontVertex();
setUV(textureRight, textureBottom);
addTopRightBackVertex();
}
public void addBottomQuad() {
// triangle strip: И
setUV(textureLeft, textureBottom);
addBottomLeftFrontVertex();
setUV(textureLeft, textureTop);
addBottomLeftBackVertex();
setUV(textureRight, textureTop);
addBottomRightBackVertex();
setUV(textureRight, textureBottom);
addBottomRightFrontVertex();
}
public void setPointOffset(float offset) {
bottomLeftBack.x = -offset;
bottomLeftBack.y = -offset;
bottomLeftBack.z = -offset;
//
bottomLeftFront.x = -offset;
bottomLeftFront.y = -offset;
bottomLeftFront.z = offset;
//
bottomRightBack.x = offset;
bottomRightBack.y = -offset;
bottomRightBack.z = -offset;
//
bottomRightFront.x = offset;
bottomRightFront.y = -offset;
bottomRightFront.z = offset;
//
topLeftBack.x = -offset;
topLeftBack.y = offset;
topLeftBack.z = -offset;
//
topLeftFront.x = -offset;
topLeftFront.y = offset;
topLeftFront.z = offset;
//
topRightBack.x = offset;
topRightBack.y = offset;
topRightBack.z = -offset;
//
topRightFront.x = offset;
topRightFront.y = offset;
topRightFront.z = offset;
}
public void setTextureOffset(SpriteRectangle offset) {
if (null != offset) {
// System.out.print("Offset " + "[" + offset.topLeft.x + "," +
// offset.topLeft.y + "]");
textureTop = offset.topLeft.y;
textureLeft = offset.topLeft.x;
textureRight = offset.bottomRight.x;
textureBottom = offset.bottomRight.y;
}
}
}
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