Package org.newdawn.slick.tests

Source Code of org.newdawn.slick.tests.GradientTest

package org.newdawn.slick.tests;

import org.newdawn.slick.AppGameContainer;
import org.newdawn.slick.BasicGame;
import org.newdawn.slick.Color;
import org.newdawn.slick.GameContainer;
import org.newdawn.slick.Graphics;
import org.newdawn.slick.Input;
import org.newdawn.slick.SlickException;
import org.newdawn.slick.fills.GradientFill;
import org.newdawn.slick.geom.Polygon;
import org.newdawn.slick.geom.Rectangle;
import org.newdawn.slick.geom.RoundedRectangle;

/**
* A test for gradient fill on polygons
*
* @author kevin
*/
public class GradientTest extends BasicGame {
  /** The container for the test */
  private GameContainer container;
  /** The paint we'll use */
  private GradientFill gradient;
  /** The paint we'll use */
  private GradientFill gradient2;
  /** The paint we'll use */
  private GradientFill gradient4;
  /** The shape to render */
  private Rectangle rect;
  /** The shape to render */
  private Rectangle center;
  /** The shape to render */
  private RoundedRectangle round;
  /** The shape to render */
  private RoundedRectangle round2;
  /** The shape to render */
  private Polygon poly;
  /** The angle of rotation */
  private float ang;
 
  /**
   * Create a new gradient test
   */
  public GradientTest() {
    super("Gradient Test");
  }
 
  /**
   * @see org.newdawn.slick.BasicGame#init(org.newdawn.slick.GameContainer)
   */
  public void init(GameContainer container) throws SlickException {
    this.container = container;
 
    rect = new Rectangle(400,100,200,150);
    round = new RoundedRectangle(150,100,200,150,50);
    round2 = new RoundedRectangle(150,300,200,150,50);
    center = new Rectangle(350,250,100,100);
   
    poly = new Polygon();
    poly.addPoint(400,350);
    poly.addPoint(550,320);
    poly.addPoint(600,380);
    poly.addPoint(620,450);
    poly.addPoint(500,450);
   
    gradient = new GradientFill(0,-75,Color.red,0,75,Color.yellow);
    gradient2 = new GradientFill(0,-75,Color.blue,0,75,Color.white);
    gradient4 = new GradientFill(-50,-40,Color.green,50,40,Color.cyan);
  }

  /**
   * @see org.newdawn.slick.BasicGame#render(org.newdawn.slick.GameContainer, org.newdawn.slick.Graphics)
   */
  public void render(GameContainer container, Graphics g) {
   
    g.rotate(400, 300, ang);
    g.fill(rect, gradient);
    g.fill(round, gradient);
    g.fill(poly, gradient2);
    g.fill(center, gradient4);

    g.setAntiAlias(true);
    g.setLineWidth(10);
    g.draw(round2, gradient2);
    g.setLineWidth(2);
    g.draw(poly, gradient);
    g.setAntiAlias(false);
   
    g.fill(center, gradient4);
    g.setAntiAlias(true);
    g.setColor(Color.black);
    g.draw(center);
    g.setAntiAlias(false);
  }

  /**
   * @see org.newdawn.slick.BasicGame#update(org.newdawn.slick.GameContainer, int)
   */
  public void update(GameContainer container, int delta) {
    ang += (delta * 0.01f);
  }

  /**
   * Entry point to our test
   *
   * @param argv The arguments to pass into the test
   */
  public static void main(String[] argv) {
    try {
      AppGameContainer container = new AppGameContainer(new GradientTest());
      container.setDisplayMode(800,600,false);
      container.start();
    } catch (SlickException e) {
      e.printStackTrace();
    }
  }

  /**
   * @see org.newdawn.slick.BasicGame#keyPressed(int, char)
   */
  public void keyPressed(int key, char c) {
    if (key == Input.KEY_ESCAPE) {
      container.exit();
    }
  }
}
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