?? debrisfragment.java
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/*
Netwar
Copyright (C) 2002 Daniel Grund, Kyle Kakligian, Jason Komutrattananon, & Brian Hibler.
This file is part of Netwar.
Netwar is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Netwar is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Netwar; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package netwar.game.projectile;
import netwar.game.*;
import netwar.utils.*;
import netwar.utils.vectorgraphics.*;
import java.awt.Color;
/** Represents a piece of debris from a destroyed object.
* This projectile arcs through the air while flipping.
* When it falls to the ground, it fizzles.
* If it lasts out its duration, it fizzles.
* @author Group N2 - Project Netwar
* @author Daniel Grund
*/
public class DebrisFragment extends Projectile {
private Point3D axisDir;
private int flipSpeed;
/** Creates a new instance of DebrisFragment */
public DebrisFragment(GraphicThing gt) {
appearance = gt;
}
/** Just fizzle (debris is currently harmless) */
protected void Explode() {
Fizzle();
}
/** Move forward. Accelerate downward. Explode if it hits the ground. */
protected void Update() {
center.doSum(velocity);
appearance.translate(velocity);
appearance.rotate(center, axisDir, flipSpeed);
velocity.z -= 1;
if(center.z < 0) {
center.z = 0;
Explode();
}
}
/** Projectile default2 will explode if it's life runs out while in the air (doesn't happen)
* @return true
*/
protected boolean mustExplode() {
return true;
}
/** Make the GraphicThing appearance. */
protected void makeGraphics() {
//Got it in the constructor.
axisDir = Point3D.unitUp.getCrossProduct(velocity);
flipSpeed = (int) velocity.getLength();
}
}
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