I've hit a wall with a simple game

programming flash
1

Hi Guys,

I’ve been working on my first vertical shooter, based on _Bruno’s tutorial on Kirupa.com. It’s just something to fill a gap on a web page, which is why it’s so slim!

There are 3 frames. An opening page, the game and a closing page.

All the code is in the actions layer except the hit areas on frame 1 and 3, within the spaceship mc (the blinking is randomised) and within the starfield mc.

I have 2 problems I hope you can help me with.

Firstly, on the closing page hit area on frame 3, I have:

on(release){
    _root.gotoAndStop(1);
}

I thought that this would stop at frame 01, especially as the frame’s code also starts with a stop();. As it stands, it jumps straight back to frame 3.

Secondly, I don’t know how to stop the movie clips generating on frame 03. There is probably a simple built-in function for this, but google hasn’t helped!

I can’t include the 400k fla (it’s too big), but here’s the code on frame02:

stop();

/*SPACESHIP GAME*/

//---- variables ----
var steps:Number = 5;
var spriteX:Number = 50;
var spriteY:Number = 350;
var speed:Number  = 20;
var bulletSpeed:Number = 5;
var missileActive:Boolean = false;
var bulletActive:Boolean = false;
var mcArray = new Array();
var enemies:Number = 4;
var i:Number = 0;
var score:Number = 0;
var lives:Number = 3;
var dianas:Number = 1;
var d:Number = 0;

life.text=lives;

//---- functions ----

function alienFire(){
    if(bulletActive == false){
        fire = Math.random()*100;
        if(fire<=5){
            attachMovie("bullet", "bullets", 3);
            bullets._x = spaceship._x+20;
            bullets._y = 0;
            bulletActive = true;
        }
    }
}

function checkLives(){
    if (lives<=0){
        for (i=0; i<mcArray.length; i++) {
        removeMovieClip(mcArray*);
        }
    gotoAndStop(3);
    }
}

function checkKeys() {
    if (Key.isDown(Key.RIGHT)&& spriteX<120) {
    spriteX += steps;
    } else if (Key.isDown(Key.LEFT)&& spriteX>-25) {
    spriteX -= steps;
    }

    if (Key.isDown(Key.UP) && missileActive == false) {
    spaceship.gun.play();
    attachMovie("missile", "missiles", 6);
    missiles._x = spriteX+29;
    missiles._y = spriteY;
    missileActive = true;
    }
}

function updateSpaceship() {
    spaceship._x = spriteX;
    spaceship._y = spriteY;
    spaceship.onEnterFrame = function() {
        if (this.hitTest(bullets)) {
            lives -= 1;
            life.text=lives;
            bulletActive = false;
            removeMovieClip(bullets);
        }
    }
}

function updateMissile() {
    if (missileActive == true) {
        missiles._y -= speed;
    }
    if (missiles._y<-10) {
        missileActive = false;    
        removeMovieClip(missiles);
    }
}
function updateBullet() {
    if (bulletActive == true) {
        bullets._y += bulletSpeed;
    }
    if (bullets._y>=410) {
        bulletActive = false;    
        removeMovieClip(bullets);
    }
}

function initEnemies() {
    for (i; i<enemies; i++) {
        attachMovie("baddy", "enemy"+i,i);
        enemy = _root["enemy"+i];
        mcArray.push(enemy);
        updateEnemies(enemy);
        enemy.onEnterFrame = function() {
            if (this.hitTest(missiles)) {
            score += 5;
            counter.text=score;
            missileActive = false;
            removeMovieClip(missiles);
            updateEnemies(this);
            }
            if (this._x>-50) {
            this._x -= this.velo;
            } else {
            updateEnemies(this);
            }
        };
    }
}
function updateEnemies(grr) {
    //****.gotoAndStop(random(4));
    grr._x  = random(100)+150;
    grr._y = random(200)+40;
    grr.velo = random(8)+1;

}

function initDianas() {
    for (d; d<dianas; d++) {
        attachMovie("ladydi", "ladydi"+d, d);
        ladydi = _root["ladydi"+d];
        mcArray.push(ladydi);
        updateDianas(ladydi);
        ladydi.onEnterFrame = function() {
            if (this.hitTest(missiles)) {
            score -= 10;
            counter.text=score;
            removeMovieClip(missiles);
            missileActive = false;
            updateDianas(this);
            }
            if (this._x>-50) {
            this._x -= this.velo;
            } else {
            updateDianas(this);
            }
        };
    }
}

function updateDianas(landmine) {
    //landmine.gotoAndStop(random(4));
    landmine._x  = random(100)+150;
    landmine._y = random(200)+40;
    landmine.velo = random(8)+1;
}


this.onEnterFrame = function() {
    alienFire();
    checkKeys();
    updateSpaceship();
    updateMissile();
    updateBullet();
    checkLives();
}

initEnemies();
initDianas();

Yes, you get docked points for shooting the Princess Dianas!
In updateDianas(), I commented out a line I didn’t understand the purpose of (original tutorial). It didn’t seem to make a difference.

Hope you can help,
Andy