/** paint the portal using gl. */
public void paint(GL gl, GLDrawable glc) {
if (fill != null) {
setColor(gl, fill);
gl.glDisable(GL.GL_TEXTURE_2D);
}
gl.glLineWidth(lineWidth());
gl.glBegin(GL.GL_LINES); // draw each wall
for (int i = 0; i < pts2d.size(); i++) {
Point2D p = (Point2D) (pts2d.get(i));
gl.glVertex2d(p.x, p.y);
}
gl.glEnd();
if (pts2d.size() == 4) {
/* Connect mid point of the two line segments with dotted line*/
gl.glLineStipple(1, (short) 0x0F0F);
gl.glEnable(GL.GL_LINE_STIPPLE);
gl.glLineWidth(1);
gl.glBegin(GL.GL_LINES);
Point2D mid = pts2d.get(0).interp(pts2d.get(1), 0.5);
gl.glVertex2d(mid.x, mid.y);
mid = pts2d.get(2).interp(pts2d.get(3), 0.5);
gl.glVertex2d(mid.x, mid.y);
gl.glEnd();
gl.glDisable(GL.GL_LINE_STIPPLE);
}
}
/** Creates a cube at 0,0 in the viewport. */
void createCube() {
GL.glNewList(cubeListIndexBase, GL.GL_COMPILE);
GL.glBegin(GL.GL_QUADS);
// front
GL.glColor3f(0.0f, 1.0f, 0.0f);
GL.glVertex3f(-0.5f, -0.5f, 0.5f); // bottom left
GL.glColor3f(0.0f, 0.0f, 1.0f);
GL.glVertex3f(0.5f, -0.5f, 0.5f); // bottom right
GL.glColor3f(1.0f, 1.0f, 0.0f);
GL.glVertex3f(0.5f, 0.5f, 0.5f); // top right
GL.glColor3f(1.0f, 0.0f, 0.0f);
GL.glVertex3f(-0.5f, 0.5f, 0.5f); // top left
// back
GL.glColor3f(0.0f, 0.0f, 1.0f);
GL.glVertex3f(-0.5f, -0.5f, -0.5f); // bottom left
GL.glColor3f(0.0f, 1.0f, 0.0f);
GL.glVertex3f(0.5f, -0.5f, -0.5f); // bottom right
GL.glColor3f(1.0f, 0.0f, 0.0f);
GL.glVertex3f(0.5f, 0.5f, -0.5f); // top right
GL.glColor3f(1.0f, 1.0f, 0.0f);
GL.glVertex3f(-0.5f, 0.5f, -0.5f); // top left
// left
GL.glColor3f(0.0f, 0.0f, 1.0f);
GL.glVertex3f(-0.5f, -0.5f, -0.5f); // bottom left
GL.glColor3f(0.0f, 1.0f, 0.0f);
GL.glVertex3f(-0.5f, -0.5f, 0.5f); // bottom right
GL.glColor3f(1.0f, 0.0f, 0.0f);
GL.glVertex3f(-0.5f, 0.5f, 0.5f); // top right
GL.glColor3f(1.0f, 1.0f, 0.0f);
GL.glVertex3f(-0.5f, 0.5f, -0.5f); // top left
// right
GL.glColor3f(0.0f, 0.0f, 1.0f);
GL.glVertex3f(0.5f, -0.5f, 0.5f); // bottom left
GL.glColor3f(0.0f, 1.0f, 0.0f);
GL.glVertex3f(0.5f, -0.5f, -0.5f); // bottom right
GL.glColor3f(1.0f, 0.0f, 0.0f);
GL.glVertex3f(0.5f, 0.5f, -0.5f); // top right
GL.glColor3f(1.0f, 1.0f, 0.0f);
GL.glVertex3f(0.5f, 0.5f, 0.5f); // top left
// top
GL.glColor3f(1.0f, 0.0f, 0.0f);
GL.glVertex3f(0.5f, 0.5f, -0.5f);
GL.glColor3f(1.0f, 1.0f, 0.0f);
GL.glVertex3f(-0.5f, 0.5f, -0.5f);
GL.glColor3f(1.0f, 0.0f, 0.0f);
GL.glVertex3f(-0.5f, 0.5f, 0.5f);
GL.glColor3f(1.0f, 1.0f, 0.0f);
GL.glVertex3f(0.5f, 0.5f, 0.5f);
// bottom
GL.glColor3f(0.0f, 0.0f, 1.0f);
GL.glVertex3f(0.5f, -0.5f, 0.5f);
GL.glColor3f(0.0f, 1.0f, 0.0f);
GL.glVertex3f(-0.5f, -0.5f, 0.5f);
GL.glColor3f(0.0f, 0.0f, 1.0f);
GL.glVertex3f(-0.5f, -0.5f, -0.5f);
GL.glColor3f(0.0f, 1.0f, 0.0f);
GL.glVertex3f(0.5f, -0.5f, -0.5f);
GL.glEnd();
GL.glEndList();
}
public void paintTex(int glid, int target, int w, int h, int color) {
float r, g, b, a;
int ir, ig, ib, ia;
ia = (color >> 24) & 0xff;
ir = (color >> 16) & 0xff;
ig = (color >> 8) & 0xff;
ib = color & 0xff;
a = ia / 255.0f;
r = ir / 255.0f;
g = ig / 255.0f;
b = ib / 255.0f;
pushFramebuffer();
setFramebuffer(FBO);
FBO.setDrawBuffer(target, glid);
saveView();
setOrthographicView(w, h);
gl.glColor4f(r, g, b, a);
gl.glBegin(GL.GL_QUADS);
gl.glVertex2f(0.0f, 0.0f);
gl.glVertex2f(w, 0.0f);
gl.glVertex2f(w, h);
gl.glVertex2f(0.0f, h);
gl.glEnd();
restoreView();
popFramebuffer();
}
public void line(Coord c1, Coord c2, double w) {
texsel(-1);
gl.glLineWidth((float) w);
gl.glBegin(GL.GL_LINES);
glcolor();
vertex(c1);
vertex(c2);
gl.glEnd();
checkerr();
}
public void frect(Coord c1, Coord c2, Coord c3, Coord c4) {
glcolor();
texsel(-1);
gl.glBegin(GL.GL_QUADS);
vertex(c1);
vertex(c2);
vertex(c3);
vertex(c4);
gl.glEnd();
checkerr();
}
public void frect(Coord ul, Coord sz) {
glcolor();
texsel(-1);
gl.glBegin(GL.GL_QUADS);
vertex(ul);
vertex(ul.add(new Coord(sz.x, 0)));
vertex(ul.add(sz));
vertex(ul.add(new Coord(0, sz.y)));
gl.glEnd();
checkerr();
}
public void copyTex(GLTexture srcTex, GLTexture destTex) {
float uscale = srcTex.getMaxTextureCoordS();
float vscale = srcTex.getMaxTextureCoordT();
float cx = 0.0f;
float sx = +1.0f;
if (destTex.isFlippedX()) {
cx = 1.0f;
sx = -1.0f;
}
float cy = 0.0f;
float sy = +1.0f;
if (destTex.isFlippedY()) {
cy = 1.0f;
sy = -1.0f;
}
gl.glEnable(srcTex.getTextureTarget());
gl.glActiveTexture(GL.GL_TEXTURE0);
gl.glBindTexture(srcTex.getTextureTarget(), srcTex.getTextureID());
pushFramebuffer();
setFramebuffer(FBO);
FBO.setDrawBuffer(destTex.getTextureTarget(), destTex.getTextureID());
saveView();
setOrthographicView(destTex.width, destTex.height);
gl.glEnable(srcTex.getTextureTarget());
gl.glActiveTexture(GL.GL_TEXTURE0);
gl.glBindTexture(srcTex.getTextureTarget(), srcTex.getTextureID());
gl.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
gl.glBegin(GL.GL_QUADS);
gl.glTexCoord2f((cx + sx * 0.0f) * uscale, (cy + sy * 0.0f) * vscale);
gl.glVertex2f(0.0f, 0.0f);
gl.glTexCoord2f((cx + sx * 1.0f) * uscale, (cy + sy * 0.0f) * vscale);
gl.glVertex2f(srcTex.width, 0.0f);
gl.glTexCoord2f((cx + sx * 1.0f) * uscale, (cy + sy * 1.0f) * vscale);
gl.glVertex2f(srcTex.width, srcTex.height);
gl.glTexCoord2f((cx + sx * 0.0f) * uscale, (cy + sy * 1.0f) * vscale);
gl.glVertex2f(0.0f, srcTex.height);
gl.glEnd();
gl.glBindTexture(srcTex.getTextureTarget(), 0);
restoreView();
popFramebuffer();
}
public void fellipse(Coord c, Coord r, int a1, int a2) {
glcolor();
texsel(-1);
gl.glBegin(GL.GL_TRIANGLE_FAN);
vertex(c);
for (int i = a1; i < a2; i += 5) {
double a = (i * Math.PI * 2) / 360.0;
vertex(c.add((int) (Math.cos(a) * r.x), -(int) (Math.sin(a) * r.y)));
}
double a = (a2 * Math.PI * 2) / 360.0;
vertex(c.add((int) (Math.cos(a) * r.x), -(int) (Math.sin(a) * r.y)));
gl.glEnd();
checkerr();
}
public void ftriangle(Coord center, int size) {
if (size < 1) return;
double sqrt3 = Math.sqrt(3);
double Orad = (sqrt3 * size) / 3;
double Irad = (sqrt3 * size) / 6;
Coord c1, c2, c3;
c1 = new Coord(center.x, center.y - (int) Orad);
c2 = new Coord(center.x + (int) (size / 2) - 1, center.y + (int) Irad);
c3 = new Coord(center.x - (int) (size / 2) + 1, center.y + (int) Irad);
glcolor();
texsel(-1);
gl.glBegin(GL.GL_TRIANGLE_STRIP);
vertex(c1);
vertex(c2);
vertex(c3);
gl.glEnd();
checkerr();
}
private void renderOneside(Point2D a, Point2D b, GL gl, double d) {
gl.glClear(0);
Vector3D t = new Vector3D(b.x - a.x, 0, b.y - a.y);
Vector3D n = new Vector3D(0, 1, 0);
Vector3D cross = n.cross(t);
gl.glNormal3d(cross.x, cross.y, cross.z);
// Texture adjustment vars
double length =
scale * Math.sqrt((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y)) / 100 + 0.1;
double height = scale;
// draw the 4 points of it
gl.glBegin(GL.GL_POLYGON);
gl.glTexCoord2d(0, 0);
gl.glVertex3d(a.x, d, a.y);
gl.glTexCoord2d(0, height);
gl.glVertex3d(a.x, d + 100, a.y);
gl.glTexCoord2d(length, height);
gl.glVertex3d(b.x, d + 100, b.y);
gl.glTexCoord2d(length, 0);
gl.glVertex3d(b.x, d, b.y);
gl.glEnd();
}