Java tutorial
//******************************************************// // // EasyGL // //******************************************************// // Written by: // James Schwinabart //******************************************************// // EASYGL IS FREE SOFTWARE // http://james.schwinabart.com/easygl/license/ //******************************************************// package org.javateerz.EasyGL; import org.lwjgl.opengl.GL11; import org.newdawn.slick.geom.Rectangle; /** * An OpenGL rectangle * * @author James Schwinabart */ public class GLRect extends GLObject { /** * Create a new OpenGL rectangle * * @param x * @param y * @param width * @param height */ public GLRect(int x, int y, int width, int height) { super(x, y, width, height); } public GLRect(Rectangle rect) { super((int) rect.getX(), (int) rect.getY(), (int) rect.getWidth(), (int) rect.getHeight()); } /** * Draws the OpenGL rectangle on the display */ public void draw() { GL11.glPushMatrix(); // disable textures GL11.glDisable(TEXTURE_TARGET); // move to selected location GL11.glTranslatef(x, y, 0); // set color for drawing GL11.glColor4f((float) color.getRed() / 255, (float) color.getGreen() / 255, (float) color.getBlue() / 255, (float) color.getAlpha() / 255); // draw a quadrilateral GL11.glBegin(GL11.GL_QUADS); GL11.glVertex2f(0, 0); GL11.glVertex2f(0, height); GL11.glVertex2f(width, height); GL11.glVertex2f(width, 0); GL11.glEnd(); GL11.glPopMatrix(); } }