flameweapon.java

用java开发的一个实施策略游戏源码 值得学习一下

/*

	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 travels straight along the ground, growing as it moves.

 * If it lasts out its duration, it explodes.

 * @author Group N2 - Project Netwar

 * @author Daniel Grund

 */

public class FlameWeapon extends Projectile {

	CoherentPointSet cps = new CoherentPointSet(5);

	float size = 0.2f;

	/** Creates a new instance of FlameWeapon */

	public FlameWeapon() {

                //The following line has been removed temporarily until I can figure out why this hurts performance so much.

		//netwar.Netwar.netwar.soundPlayer.play("sound/AttackCommand.wav");

	}

	/** Deal damage to the target, if it is in range. */

	protected void Explode() {

		Point3D pt = new Point3D(enemy.locate());

		if(enemy.damageable()) {

			pt.z += enemy.getHeight() / 2;

			pt.doDifference(center);

			if(pt.getLength() - enemy.getWidth() < radiusSquared)

			enemy.recieveDamage(damage);

		}

		Fizzle();

	}

	/** Move forward. */

	protected void Update() {

		Point3D pt = new Point3D(enemy.locate());

		pt.z += enemy.getHeight() / 2;



		center.doSum(velocity);

		pt.doDifference(center);

		

		cps.getPoint(0).x -= size;

		cps.getPoint(1).x += size;

		cps.getPoint(2).y -= size;

		cps.getPoint(3).y += size;

		cps.getPoint(4).z += size;

		size *= 2;

		cps.translate(velocity);

	}

    

	/** Projectile default will simply fizzle if its life runs out (highly unlikely)

	 * @return false

	 */

	protected boolean mustExplode() {

		return true;

	}

	

	/** Make the GraphicThing appearance.  */

	protected void makeGraphics() {

		cps.add(new SelfConvertingPoint(-0.2f,0,0));

		cps.add(new SelfConvertingPoint(0.2f,0,0));

		cps.add(new SelfConvertingPoint(0,-0.2f,0));

		cps.add(new SelfConvertingPoint(0,0.2f,0));

		cps.add(new SelfConvertingPoint(0,0,0.4f));

		cps.translate(center);

		appearance = new ZOrderedList(netwar.gui.HexViewer.getHexViewer().getTransform());

		((ZOrderedList)appearance).add(new GraphicTriangle(cps.getPoint(0), cps.getPoint(1), cps.getPoint(4), Color.red));

		((ZOrderedList)appearance).add(new GraphicTriangle(cps.getPoint(2), cps.getPoint(3), cps.getPoint(4), Color.red));

		((ZOrderedList)appearance).add(new GraphicParallelogram(cps.getPoint(0), cps.getPoint(2), cps.getPoint(1), cps.getPoint(3), Color.red));

	}

	

}