A Line In AS2 Is Freezing The Game

[Cody2819]

I started to work on a new code (last one was for a fighting game but as the guy never finished them, I can't do anything else atm) that does work---but it freezes the game, why? Here's the code.

stop();
xSpeed = 0;
maxSpeed = 20;
maxSpeed2 = -20;
slowSpeed = 1;
var grav:Number = 0;
var gravity:Number = 10;
var maxJump:Number = -9;
var toughingGround:Boolean = false;
Son.onEnterFrame = function() {
this._x += xSpeed;
//gravity
Son._y += grav;
grav += gravity;
while (ground.hitTest(Son._x, Son._y, true)) {
}
if (ground.hitTest(Son._x, Son._y+5, true)) {
toughingGround = true;
jumping = false;
} else {
toughingGround = false;
}
if (Key.isDown(Key.SPACE) && toughingGround) {
jumping = true;
grav-maxJump;
} else if (Key.isDown(Key.RIGHT)) {
this._xscale = 100;
if (xSpeed>10) {
this.gotoAndStop("SonRun");
} else {
this.gotoAndStop("SonWalk");
}
if (xSpeed<maxSpeed) {
xSpeed += 1;
}
} else if (Key.isDown(Key.LEFT)) {
this._xscale = -100;
if (xSpeed<-10) {
this.gotoAndStop("SonRun");
} else {
this.gotoAndStop("SonWalk");
}
if (xSpeed>maxSpeed2) {
xSpeed -= 1;
}
} else if (xSpeed>0) {
this.gotoAndStop("SonBreak");
xSpeed -= slowSpeed;
} else if (xSpeed<0) {
this.gotoAndStop("SonBreak");
xSpeed += slowSpeed;
}
};

So what's freezing the game? The line

while (ground.hitTest(Son._x, Son._y, true)) {

is causing it to freeze up. I tested it and when I change the word "while" to "if" Sonic falls off screen, but the game no longer freezes. I spent over an hour with an friend to try and fix this and I even messaged the guy who made the tut videos (still awaiting a reply), but so far no luck is fixing this.

Can anyone tell me how to fix this? I really hate AS, I do, but it is what it is. I can't fix it so asking for help. If get a reply back from the guy I'll post here saying so.

https://www.youtube.com/watch?v=mkrt24B_Lvs&index=59

AND BEFORE YOU ASK! No, his fla files are a unexpected format so flash 8 can't open them.

[Terrencing]

what about the fla that you use to work on, not need other fla.
you not like AS becose you not know it well, simple as.

[realMakc]

change

while (ground.hitTest(Son._x, Son._y, true)) {

to

var count = 10;
while (ground.hitTest(Son._x, Son._y, true) && (count-->0)) {

[Cody2819]

what about the fla that you use to work on, not need other fla.
you not like AS becose you not know it well, simple as.

That was for a fighting game, the guy stopped before showing how to do AI movement and such. This code is for a Sonic game, I didn't give up on the other code it's just there's nothing more to do with it atm until the guy posts another part or I find an AI script, which the Sonic tuts above will get into later as I checked ahead of time.

change

while (ground.hitTest(Son._x, Son._y, true)) {

to

var count = 10;
while (ground.hitTest(Son._x, Son._y, true) && (count-->0)) {

I'll try it, I'll edit in whether or not it works (flash takes like a full min to open)

EDIT:Well the game doesn't freeze but Sonic falls off screen, gonna mess around a bit but I'll look back to see if you posted anything else.

[Cody2819]

OK I edited it to

while (ground.hitTest(Son._x, Son._y, true) && grav-->0) {

and Sonic does touch the ground, but he won't stop bouncing up and down. At least we're getting somewhere.

EDIT:With the var count do I add it increasing and decreasing wherever the grav/gravity does?