/*
* Phys2D - a 2D physics engine based on the work of Erin Catto. The
* original source remains:
*
* Copyright (c) 2006 Erin Catto http://www.gphysics.com
*
* This source is provided under the terms of the BSD License.
*
* Copyright (c) 2006, Phys2D
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Phys2D/New Dawn Software nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*/
package net.phys2d.raw;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.ArrayList;
import javax.swing.JFrame;
import net.phys2d.raw.shapes.AABox;
import net.phys2d.raw.shapes.Circle;
import net.phys2d.raw.strategies.QuadSpaceStrategy;
/**
* A reasonably crap test of the quad space strategy
*
* @author Kevin Glass
*/
public class QuadSpaceTest extends JFrame implements CollisionContext {
/** Indicates the next step is to create bodies */
public static final int CREATE = 1;
/** Indicates the next step is to collide bodies */
public static final int COLLIDE = 2;
/** The bodies to check against each other */
private BodyList bodies = new BodyList();
/** The current step in the test process */
private int step = CREATE;
/** The strategy we're testing */
private QuadSpaceStrategy strat = new QuadSpaceStrategy(10,5);
/** The spaces that have been generated */
private ArrayList spaces;
/**
* Create a new test instance
*/
public QuadSpaceTest() {
super("Quad Space Test");
addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
nextStep();
}
});
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
setSize(600,600);
setResizable(false);
setVisible(true);
}
/**
* Move to the next step - done on mouse click
*/
private void nextStep() {
if (step == CREATE) {
System.out.println("Generating 100");
for (int i=0;i<100;i++) {
float size = (float) (10 + (Math.random() * 20));
Body body = new Body(new Circle(size),1);
body.setPosition((float) (Math.random() * 500)+50, (float) (Math.random() * 500)+50);
bodies.add(body);
}
step = COLLIDE;
} else if (step == COLLIDE) {
System.out.println("Colliding");
strat.collideBodies(this, bodies, 0);
spaces = strat.getSpaces();
}
repaint(0);
}
/**
* @see java.awt.Component#paint(java.awt.Graphics)
*/
public void paint(Graphics g) {
for (int i=0;i<bodies.size();i++) {
Body b = bodies.get(i);
g.setColor(Color.black);
if (spaces != null) {
g.setColor(Color.red);
}
float x = b.getPosition().getX();
float y = b.getPosition().getY();
float rad = ((Circle) b.getShape()).getRadius();
g.drawOval((int) (x-rad),(int) (y-rad),(int) (rad*2),(int) (rad*2));
AABox box = b.getShape().getBounds();
float width2 = box.getWidth() / 2;
float height2 = box.getWidth() / 2;
g.setColor(Color.lightGray);
g.drawRect((int) (x-width2),(int) (y-height2),
(int) box.getWidth(),(int) box.getHeight());
}
if (spaces != null) {
for (int i=0;i<spaces.size();i++) {
QuadSpaceStrategy.Space space = (QuadSpaceStrategy.Space) spaces.get(i);
g.setColor(Color.blue);
int x1 = (int) space.getX1();
int x2 = (int) space.getX2();
int y1 = (int) space.getY1();
int y2 = (int) space.getY2();
g.drawRect(x1,y1,(x2-x1),(y2-y1));
}
}
}
/**
* @see net.phys2d.raw.CollisionContext#resolve(net.phys2d.raw.BodyList, float)
*/
public void resolve(BodyList bodies, float dt) {
}
/**
* Entry point to our quad test
*
* @param argv The arguments to the test
*/
public static void main(String[] argv) {
new QuadSpaceTest();
}
}