hey so me and a freind are working on a game
but both of us are confused about whats wrong...
we have everything needed but it wont work
the blue triangle is supposed to move across a horizantal axis on the screen under the commands of the left and right arrow keys
can someone please fix it?
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.*;
import java.net.*;
import java.util.*;
import java.applet.Applet;
import java.applet.AudioClip;
import javax.swing.*;
class GalaxyWars2
{
static int height;
static int width;
Polygon shape;
boolean active;
double angle;
double deltaAngle;
double currentX, currentY;
double deltaX, deltaY;
Polygon sprite;
public GalaxyWars2()
{
this.shape = new Polygon();
this.active = false;
this.angle = 0.0;
this.deltaAngle = 0.0;
this.currentX = 0.0;
this.currentY = 0.0;
this.deltaX = 0.0;
this.deltaY = 0.0;
this.sprite = new Polygon();
}
public void advance() {
this.angle += this.deltaAngle;
if (this.angle < 0)
this.angle += 2 * Math.PI;
if (this.angle > 2 * Math.PI)
this.angle -= 2 * Math.PI;
this.currentX += this.deltaX;
if (this.currentX < -width / 2)
this.currentX += width;
if (this.currentX > width / 2)
this.currentX -= width;
this.currentY -= this.deltaY;
if (this.currentY < -height / 2)
this.currentY += height;
if (this.currentY > height / 2)
this.currentY -= height;
}
public void render() {
int i;
this.sprite = new Polygon();
for (i = 0; i < this.shape.npoints; i++)
this.sprite.addPoint((int) Math.round(this.shape.xpoints[i] * Math.cos(this.angle) + this.shape.ypoints[i] * Math.sin(this.angle)) + (int) Math.round(this.currentX) + width / 2,
(int) Math.round(this.shape.ypoints[i] * Math.cos(this.angle) - this.shape.xpoints[i] * Math.sin(this.angle)) + (int) Math.round(this.currentY) + height / 2);
}
}
public class GWars2 extends Applet implements Runnable, ActionListener
{
int Score;
int shipsLeft=5;
int shipCounter;
GalaxyWars2 ship;
GalaxyWars2 enemy;
boolean playing;
boolean left = false;
boolean right = false;
boolean up = false;
Dimension offDimension;
Image offImage;
Graphics offGraphics;
Thread thethread;
Font font = new Font("Earwig Factory", Font.BOLD, 25);
FontMetrics fm;
int fontWidth;
int fontHeight;
public String getAppletInfo() {
return("Galaxy Wars 2, Copyright 2007 by Aaron , Tyler and Justin");
}
public void init()
{
Graphics g;
Dimension d;
int i;
g = getGraphics();
d = size();
GalaxyWars2.width = d.width;
GalaxyWars2.height = d.height;
//Makes our ships
ship=new GalaxyWars2();
ship.shape.addPoint(0, 20);
ship.shape.addPoint(20,10);
ship.shape.addPoint(0,0 );
ship.shape.addPoint(0,20 );
enemy=new GalaxyWars2();
enemy.shape.addPoint(250, 250);
enemy.shape.addPoint(233,342 );
enemy.shape.addPoint(234,84 );
enemy.shape.addPoint(340,230 );
enemy.shape.addPoint(250,250 );
initGame();
endGame();
}
public void initGame()
{
Score = 0;
initShip();
playing = true;
}
//ends game
public void endGame()
{
playing = false;
stopShip();
}
//stops our ship
public void stopShip()
{
ship.active = false;
}
public void initShip()
{
ship.active = true;
ship.angle = 0.0;
ship.deltaAngle = 0.0;
ship.currentX = 0.0;
ship.currentY = 0.0;
ship.deltaX = 0.0;
ship.deltaY = 0.0;
ship.render();
}
//updates ships cordinates
public void updateShip() {
double dx, dy;
if (!playing)
return;
if (left) {
ship.deltaX +=20;
ship.render();
}
if (right) {
ship.angle -= Math.PI / 16.0;
if (ship.angle < 0)
ship.angle += 2 * Math.PI;
dx = -Math.sin(ship.angle);
dy = Math.cos(ship.angle);
if (ship.active) {
ship.advance();
ship.render();
}
else
if (--shipCounter <= 0 || Score < 0)
if (shipsLeft > 0) {
initShip();
}
else
endGame();
}
}
public void run() {
int DELAY = 5;
int i, j;
long startTime;
Thread.currentThread().setPriority(Thread.MIN_PRIO RITY);
startTime = System.currentTimeMillis();
while (Thread.currentThread() == thethread) {
if (1 <0) {
updateShip();
int Score =1;
if (Score <= 0)
{
endGame();
}
}
updateShip();
repaint();
try {
startTime += DELAY;
Thread.sleep(Math.max(0, startTime - System.currentTimeMillis()));
}
catch (InterruptedException e) {
break;
}
}
}
public void start()
{
if (thethread == null)
{
thethread = new Thread(this);
thethread.start();
}
}
public void stop()
{
if (thethread != null)
{
thethread.stop();
thethread = null;
}
}
public void actionPerformed(ActionEvent e) {
int ShipCC=0;
if ("Ship".equals(e.getActionCommand()))
{
System.out.println("Confirm");
} }
public boolean keyUp(Event e, int key)
{
if (key==1005) {
up=true;
}
if (key==1007) {
left=true;
System.out.println("Left key up");
}
if (key==1006) {
right=false;
}
return true;
}
public boolean keyDown(Event e, int key) {
// Check if any cursor keys have been pressed and set flags.
if (key==1005) {
up=false;
}
if (key==1007) {
left=false;
System.out.println("Left key pressed");
}
if (key==1006) {
right=true;
}
return true;
}
public void paint(Graphics g) {
update(g);
}
public void update(Graphics g)
{
Dimension d = size();
int i;
if (offGraphics == null || d.width != offDimension.width || d.height != offDimension.height) {
offDimension = d;
offImage = createImage(d.width, d.height);
offGraphics = offImage.getGraphics();
}
offGraphics.setColor(Color.black);
offGraphics.fillRect(0, 0, d.width, d.height);
if (shipsLeft >= 5)
{
offGraphics.setColor(Color.blue);
offGraphics.fillPolygon(ship.sprite);
}
if(shipsLeft == 4)
{
offGraphics.setColor(Color.yellow);
offGraphics.fillPolygon(ship.sprite);
}
if(shipsLeft == 3)
{
offGraphics.setColor(Color.orange);
offGraphics.fillPolygon(ship.sprite);
}
if(shipsLeft == 2)
{
offGraphics.setColor(Color.red);
offGraphics.fillPolygon(ship.sprite);
}
if(shipsLeft == 1)
{
offGraphics.setColor(Color.white);
offGraphics.fillPolygon(ship.sprite);
}
offGraphics.setColor(new Color(0, 0, 0));
offGraphics.drawPolygon(ship.sprite);
offGraphics.drawLine(ship.sprite.xpoints[ship.sprite.npoints - 1], ship.sprite.ypoints[ship.sprite.npoints - 1],
ship.sprite.xpoints[0], ship.sprite.ypoints[0]);
g.drawImage(offImage, 0, 0, this);
}
}