Absolute
Java Source:
// Absolute Space
import java.awt.*;
import java.net.*;
import java.applet.Applet;
import java.applet.AudioClip;
public class Absolute extends Applet implements Runnable
{
Dimension d;
Font largefont = new Font("Helvetica", Font.PLAIN, 24);
Font smallfont = new Font("Helvetica", Font.PLAIN, 14);
FontMetrics fmsmall, fmlarge;
Graphics goff;
Image ii;
Thread thethread;
boolean ingame=false;
int x, y, mousex, mousey, oldx, oldy, dx=0, dy=0, count, shield=0;
boolean showtitle=true;
Image ship;
Image[] fire;
int firecnt=0;
// Bullet variables
Image bullet;
int[] bx;
int[] by;
final int bmy=16, bul_xs=54, bul_ys=8;
// Meteor variables
Image meteor;
int maxmet, metcount, mtotal, mrenew, metmy;
int[] metx;
int[] mety;
int[] metf;
boolean[] metr;
final int sxmet=80, symet=84;
// These are for the star field
public int starsX[];
public int starsY[];
public Color starsC[];
public int numStars = 30;
public int speed = 6, xSize, ySize;
// Variables for big boom
Image[] boom;
int rndbx, rndby, rndcnt=777;
final int sxbom=71, sybom=100, bframes=4;
// Global Variables
int distance=0, maxdist=2000;
int slevel, blevel, difflev, bosslevel;
int smax, bmax;
int scur, bcur, renew, rcnt=0, sstretch, txtalign=100;
long score;
// Sounds
AudioClip blast, crash, kill;
// Bosses here
// Sunbird
boolean sunbird, sbefore, safter;
int sbx, sby, sbmove, maxtribe, tribe;
int[] sbfx, sbfy;
final int maxshield=9;
final int backcol=0x102040;
final int fireframe=2;
final int borderwidth=0;
final int sxsize=90, sysize=39, sxfire=11, syfire=6;
final int movex=10, movey=5;
final int scoreheight=45;
final int screendelay=300;
public String getAppletInfo()
{
return("Absolute Space - by Aleksey Udovydchenko");
}
public void init()
{
Graphics g;
int n;
d = size();
setBackground(Color.black);
g=getGraphics();
g.setFont(smallfont);
fmsmall = g.getFontMetrics();
g.setFont(largefont);
fmlarge = g.getFontMetrics();
ship = getImage(getCodeBase(), "ship.gif");
bullet = getImage(getCodeBase(), "bullet.gif");
fire = new Image[fireframe];
for (n=0; n<fireframe; n++) {
fire[n] = getImage(getCodeBase(), "fire"+n+".gif");
}
boom = new Image[bframes+1];
for (n=0; n<=bframes; n++) {
boom[n] = getImage(getCodeBase(), "boom"+n+".gif");
}
xSize = d.width - borderwidth*2;
ySize = d.height - borderwidth*2 - scoreheight;
x = (xSize - sxsize) / 2;
y = ySize - sysize - scoreheight - borderwidth;
mousex = -1;
// will be override by command line parameters
blevel = 3;
slevel = 3;
bx = new int[blevel*10];
by = new int[blevel*10];
for (n=0; n<blevel*10; n++) {
bx[n] = -1;
}
// Meteor initiliaze
meteor = getImage(getCodeBase(), "meteor.gif");
maxmet = d.height / symet + 1;
maxmet = maxmet * 10;
metx = new int[maxmet];
mety = new int[maxmet];
metf = new int[maxmet];
metr = new boolean[maxmet];
// Audio
try {
blast = getAudioClip(new URL(getDocumentBase(), "blast.au"));
crash = getAudioClip(new URL(getDocumentBase(), "collisn.au"));
kill = getAudioClip(new URL(getDocumentBase(), "mdestr.au"));
}
catch (MalformedURLException e) {}
blast.play(); blast.stop();
crash.play(); crash.stop();
kill.play(); kill.stop();
initStars();
rndcnt = 777;
// Bosses
// Sunbird
sbfx = new int[11];
sbfy = new int[11];
sbfx[0] = 10;
sbfy[0] = 0;
sbfx[1] = 15;
sbfy[1] = 10;
sbfx[2] = 0;
sbfy[2] = 10;
sbfx[3] = 3;
sbfy[3] = 15;
sbfx[4] = 17;
sbfy[4] = 15;
sbfx[5] = 20;
sbfy[5] = 20;
sbfx[6] = 23;
sbfy[6] = 15;
sbfx[7] = 37;
sbfy[7] = 15;
sbfx[8] = 40;
sbfy[8] = 10;
sbfx[9] = 25;
sbfy[9] = 10;
sbfx[10] = 30;
sbfy[10] = 0;
}
// This creates the starfield in the background
public void initStars () {
starsX = new int[numStars];
starsY = new int[numStars];
starsC = new Color[numStars];
for (int i = 0; i < numStars; i++) {
starsX[i] = (int) ((Math.random() * xSize - 1) + 1);
starsY[i] = (int) ((Math.random() * ySize - 1) + 1);
starsC[i] = NewColor();
}
}
public boolean keyDown(Event e, int key)
{
if (ingame)
{
mousex = -1;
if (key == Event.LEFT)
dx=-1;
if (key == Event.RIGHT)
dx=1;
if (key == Event.UP)
dy=-1;
if (key == Event.DOWN)
dy=1;
if (key == ' ')
if (bcur>0) FireGun();
if (key == Event.ESCAPE)
ingame=false;
}
else
{
if (key == 's' || key == 'S')
{
ingame=true;
GameStart();
}
}
return true;
}
public boolean keyUp(Event e, int key)
{
System.out.println("Key: "+key);
if (key == Event.LEFT || key == Event.RIGHT)
dx=0;
if (key == Event.UP || key == Event.DOWN)
dy=0;
return true;
}
public void paint(Graphics g)
{
String s;
Graphics gg;
if (goff==null && d.width>0 && d.height>0)
{
ii = createImage(d.width, d.height);
goff = ii.getGraphics();
}
if (goff==null || ii==null)
return;
goff.setColor(Color.black);
goff.fillRect(0, 0, d.width, d.height);
if (ingame)
PlayGame();
else
ShowIntroScreen();
g.drawImage(ii, 0, 0, this);
}
public void PlayGame()
{
NewMeteor();
MoveShip();
DrawPlayField();
// Big bosses here
if (sunbird) SunBird();
ShowScore();
distance++;
score+=100;
if (distance % maxdist == 0) {
difflev++;
if (difflev>2 & difflev<10) {
renew-=20;
bmax+=1;
smax+=1;
metmy++;
mrenew--;
}
if (difflev>3 & difflev<11) {
maxtribe++;
sbmove++;
}
if (difflev>3) {
sunbird = true;
tribe = maxtribe;
}
}
// Renew Ship Energy
rcnt++;
if (rcnt % (renew / blevel) == 0) {
bcur++;
if (bcur>bmax) bcur=bmax;
}
if (distance % 500 == 0) {
scur++;
if (scur>smax) scur=smax;
}
if (rcnt>renew) rcnt=0;
}
public void ShowIntroScreen()
{
String s;
DrawPlayField();
goff.setFont(largefont);
if (rndcnt > bframes) {
rndbx = (int) (Math.random() * (xSize - sxbom) + 1);
rndby = (int) (Math.random() * (ySize - sybom) + 1);
rndcnt = 0;
}
goff.drawImage(boom[rndcnt], rndbx, rndby, this);
rndcnt++;
for (int i=0; i<xSize/bul_xs; i++) {
goff.drawImage(bullet, i*bul_xs, 0, this);
goff.drawImage(bullet, i*bul_xs, ySize-bul_ys, this);
}
if (showtitle)
{
goff.setColor(new Color(0xff0000));
s="Absolute Space";
goff.drawString(s,(d.width-fmlarge.stringWidth(s)) / 2, (d.height-scoreheight-borderwidth)/2 - 20);
goff.setColor(new Color(0xff00ff));
s="(c)2000 by Aleksey Udovydchenko";
goff.setFont(smallfont);
goff.drawString(s,(d.width-fmsmall.stringWidth(s))/2,(d.height-scoreheight-borderwidth)/2 + 10);
s="freewebdesign@crosswinds.net";
goff.drawString(s,(d.width-fmsmall.stringWidth(s))/2,(d.height-scoreheight-borderwidth)/2 + 30);
}
else
{
goff.setFont(smallfont);
goff.setColor(new Color(0xffff00));
s="Leftclick to start game";
goff.drawString(s,(d.width-fmsmall.stringWidth(s))/2,(d.height-scoreheight-borderwidth)/2 - 10);
goff.setColor(new Color(0x00ff00));
s="Use cursor keys move, click or press SPACE to fire";
goff.drawString(s,(d.width-fmsmall.stringWidth(s))/2,(d.height-scoreheight-borderwidth)/2 + 20);
goff.setFont(largefont);
goff.setColor(new Color(0xff00ff));
s="LAST SCORE: "+score;
goff.drawString(s,(d.width-fmlarge.stringWidth(s))/2,(d.height-scoreheight-borderwidth)/2 + 120);
}
count--;
if (count<=0)
{ count=screendelay; showtitle=!showtitle; }
}
public void DrawPlayField()
{
// Show stars
moveStars();
for (int a = 0; a < numStars; a++) {
goff.setColor(starsC[a]);
goff.drawRect(starsX[a], starsY[a], 1, 1);
}
ShowMeteors();
KillEmAll();
goff.drawImage(ship, x, y, this); // paint ship
if (firecnt != 0) {
goff.drawImage(fire[firecnt-1], x+( (sxsize-sxfire) / 2 ), y+sysize, this); // engine fire
}
firecnt++;
if (firecnt > 2) firecnt=0;
Collisions();
if (shield>0) {
goff.setColor(new Color(0x00ffff));
goff.drawOval(x-shield, y-shield, sxsize+shield*2, sysize+shield*2);
shield--;
}
}
public void ShowScore()
{
String s;
int my;
sstretch = (xSize-txtalign*2)/Math.max(bmax,smax);
// Laser bar
my = d.height-scoreheight+10;
goff.setColor(new Color(0x00ff96));
goff.drawRect(txtalign, my-10, bmax*sstretch, 10);
goff.setFont(smallfont);
s="laser: "+bcur+"/"+bmax;
goff.fillRect(txtalign, my-10, bcur*sstretch, 10);
goff.drawString(s,10,my);
// Shield bar
my += 15;
goff.setColor(new Color(0x00ffff));
goff.drawRect(txtalign, my-10, smax*sstretch, 10);
goff.setFont(smallfont);
s="shield: "+scur+"/"+smax;
goff.fillRect(txtalign, my-10, scur*sstretch, 10);
goff.drawString(s,10,my);
// Score
my += 20;
goff.setColor(new Color(0xffffff));
goff.setFont(largefont);
s="score: "+score;
goff.drawString(s,10,my);
}
public void MoveShip()
{
int xx, yy;
oldx = x;
oldy = y;
xx = mousex;
if (xx>0) {
yy = mousey;
if (xx<x) dx=-1;
if (xx>x+sxsize) dx=1;
if (yy<y) dy=-1;
if (yy>y+sysize) dy=1;
if (xx>x & xx<x+sxsize & yy>y & yy<y+sysize) {
dx = 0;
dy = 0;
mousex = -1;
}
}
x+=dx*movex;
y+=dy*movey;
if (y<=borderwidth || y>=(d.height-sysize-scoreheight))
{
dy=0;
y=oldy;
}
if (x>=(d.width-borderwidth-sxsize) || x<=borderwidth)
{
dx=0;
x=oldx;
}
}
public void FireGun()
{
int n=0, f=-1;
while (n<blevel*10 && bx[n]>=0) n++;
if (n<blevel*10) f = n;
if (f>=0) {
bx[f] = x+( (sxsize-bul_xs) / 2);
by[f] = y;
bcur--;
blast.play();
}
}
public void KillEmAll()
{
int f;
for (int n=0; n<blevel*10; n++) {
if (bx[n]>0) {
by[n] -= bmy;
if ( by[n] < borderwidth | MetHit(n) | BirdHit(bx[n], by[n]) ) {
bx[n] = -1;
} else {
goff.drawImage(bullet, bx[n], by[n], this); // paint bullet
}
}
}
}
public boolean MetHit(int f)
{
for (int n=0; n<maxmet; n++) {
if (metx[n]>=0) {
if (metr[n] & bx[f]+bul_xs>metx[n] & bx[f]<metx[n]+sxmet & by[f]+bul_ys>mety[n] & by[f]<mety[n]+symet) {
DelMeteor(n);
kill.play();
return true;
}
}
}
return false;
}
public void ShowMeteors()
{
int n;
mtotal = 0;
for (n=0; n<maxmet; n++) {
if (metx[n]>=0) {
mtotal++;
mety[n] += metmy;
if (mety[n] > d.height-borderwidth-scoreheight) {
DelMeteor(n);
} else {
if (metr[n]) {
goff.drawImage(meteor, metx[n], mety[n], this); // paint meteor
} else {
goff.drawImage(boom[bframes-metf[n]], metx[n]+(sxmet-sxbom)/2, mety[n]+(symet-sybom)/2, this); // paint boom
metf[n]--;
if (metf[n]<0) DelMeteor(n);
}
}
}
}
}
public void NewMeteor()
{
int n=0, f=-1;
metcount++;
if (metcount > mrenew/metmy) {
metcount = 0;
while (n<maxmet & metx[n]>=0) n++;
if (n<maxmet) f = n;
if (f>=0) {
metx[f] = (int) (Math.random() * (xSize - sxmet) + 1);
mety[f] = borderwidth-symet;
metr[f] = true;
metf[f] = bframes;
}
}
}
// If a star in the background reaches the bottome then it will go back to the top
public void moveStars () {
for (int i = 0; i < numStars; i++) {
if (starsY[i] + 1 > ySize - (speed * 2 )) {
starsY[i] = 0;
starsX[i] = (int) ((Math.random() * xSize - 1) + 1);
starsC[i] = NewColor();
}
else {
starsY[i] += speed;
}
}
}
public void Collisions()
{
for (int n=0; n<maxmet; n++) {
if (metx[n]>=0) {
if (metr[n] & x+sxsize>metx[n] & x<metx[n]+sxmet & y+sysize>mety[n] & y<mety[n]+symet) {
HitShip();
DelMeteor(n);
}
}
}
}
public void HitShip()
{
crash.play();
shield=maxshield;
scur--;
if (scur<0) GameOver();
}
public void DelMeteor(int n)
{
if (metr[n]) {
metr[n] = false;
metf[n] = bframes;
} else {
metx[n] = -1;
metr[n] = true;
metf[n] = 0;
}
}
public Color NewColor()
{
int[] rgb;
int t;
rgb = new int[3];
for (int i=0; i<3; i++) rgb[i] = 0;
t = (int) (Math.random()*3);
rgb[t] = (int) (Math.random()*128 + 1) + 127;
return new Color(rgb[0], rgb[1], rgb[2]);
}
public void run()
{
long starttime;
Graphics g;
Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
g=getGraphics();
while(true)
{
starttime=System.currentTimeMillis();
try
{
paint(g);
starttime += 30;
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;
}
}
// This class handles mouse clicking
public boolean mouseDown(Event e,int xx,int yy)
{
if (ingame) {
mousex = xx;
mousey = yy;
keyDown(e, 32);
} else {
keyDown(e, 'S');
}
return true;
}
// Game Start
public void GameStart()
{
// Set Up Ship variables
bmax = blevel*blevel;
bcur = bmax;
smax = slevel*slevel;
scur = smax;
difflev = 3;
distance=0;
score=0;
renew=250;
for (int n=0; n<maxmet; n++) {
metx[n] = -1;
metf[n] = 0;
metr[n] = true;
}
metcount=0;
metmy=2;
mrenew=60;
// Bosses init
// #1 - SunBird;
sbx = -1;
sbmove = 2;
maxtribe = 1;
sunbird=false;
sbefore = true;
safter = false;
}
// Game Over
public void GameOver()
{
ingame=false;
}
// Boss #1 - Sunbird's pack
public void SunBird()
{
int[] xcur, ycur;
xcur = new int[11];
ycur = new int[11];
if (sbx<0) {
sbx = (int) ((Math.random() * xSize - 40) + 1);
sby = -5;
sbefore = true;
safter = false;
}
sby += sbmove;
if (y+sysize/2<sby) safter = true;
goff.setColor(new Color(0xffff00));
if (sbefore & safter) {
// hit ship
goff.fillRect(0, sby+15, xSize, 2);
HitShip();
}
for (int i=0; i<11; i++) {
xcur[i] = sbfx[i] + sbx;
ycur[i] = sbfy[i] + sby;
}
goff.fillPolygon(xcur, ycur, 11);
if (sby>xSize+20) {
sbx=-1;
sbefore = true;
safter = false;
}
sbefore=false;
if (y+sysize/2>sby) sbefore = true;
}
public boolean BirdHit(int blx, int bly) {
if (sunbird) {
if (blx+bul_xs>sbx & blx<sbx+40 & bly+bul_ys>sby & bly<sby+20) {
tribe--;
if (tribe<0) sunbird=false;
sbx=-1;
sbefore = true;
safter = false;
return true;
}
}
return false;
}
}
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