?? ballisticshell.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;
/** This projectile arcs through the air. When it falls to the ground, it explodes.
* If it lasts out its duration, it explodes.
* @author Group N2 - Project Netwar
* @author Daniel Grund
*/
public class BallisticShell extends Projectile {
/** Creates a new instance of BallisticShell */
public BallisticShell() {
}
/** Deal damage to the target, if it is in range. */
protected void Explode() {
Point3D pt = new Point3D(enemy.locate());
if(enemy.damageable()) {
pt.doDifference(center);
if((pt.getLength() - enemy.getWidth()) * (pt.getLength() - enemy.getWidth()) < radiusSquared)
enemy.recieveDamage(damage);
}
Fizzle();
}
/** Move forward. Accelerate downward. Explode if it hits the ground. */
protected void Update() {
center.doSum(velocity);
appearance.translate(velocity);
velocity.z -= 1;
if(center.z < 0) {
center.z = 0;
Explode();
}
}
/** Ballistic Shell 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() {
Point3D pt = new Point3D(velocity);
Point3D pt1 = new Point3D(center);
Point3D pt2 = new Point3D(center);
pt.z = 0;
pt.Normalize();
appearance = new OrderedGraphicSet(
new GraphicLine(pt1.getSum(pt), pt2.getDifference(pt), Color.yellow),
3);
pt.doCrossProduct(pt1.set(0,0,1));
pt1.set(center);
pt2.set(center);
((OrderedGraphicSet)appearance).add(
new GraphicLine(pt1.getSum(pt), pt2.getDifference(pt), Color.yellow),
false);
pt.set(0,0,1);
pt1.set(center);
pt2.set(center);
((OrderedGraphicSet)appearance).add(
new GraphicLine(pt1.doSum(pt), pt2.doDifference(pt), Color.yellow),
false);
}
}
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