CS4: hitTestObject allows MC to pass through..???

[kavanstudios]

I am trying to develop a basic game engine for a slime soccer style game where a player can move around and jump. I am still fairly new at AS3 but managed to put together this working bit of code that the game currently runs on:

stop();
	//vardefs
	var runSpeed:Number = 10;
	var blueGoals:Number = 0;
	var redGoals:Number = 0;
	var blueGotGoal:Boolean = false;
	var redGotGoal:Boolean = false;
			var blueLeftTrue:Boolean = false;
			var blueRightTrue:Boolean = false;
			var redLeftTrue:Boolean = false;
			var redRightTrue:Boolean = false;
			var blueOnGround:Boolean = false;
			var redOnGround:Boolean = false;
				//gravfunctions::
		var gravPull:Number = 0.5;
		var yPullSpeed:Number = 0;
				//jumpfunctions::
		var jumpSpeed:Number = 2.103;
	//trace(String(blueLeftTrue));
function checkSideMotion(Event:KeyboardEvent){
	if(Event.keyCode == 37){
		blueLeftTrue = true;
	}
	if(Event.keyCode == 39){
		blueRightTrue = true;
	}
}
function sideMotionFalse(event:KeyboardEvent){
	if(event.keyCode == 37){
		event.keyCode = 0;
		blueLeftTrue = false;
		trace("false");
	}
	if(event.keyCode == 39){
		event.keyCode = 0;
		blueRightTrue = false;
		trace("false");
	}
}
	//trace(String(blueLeftTrue));
function sideMovement(Event){
	if(blueLeftTrue == true){
		mc_Slime1.x-= runSpeed;
		trace("Blue Left Is True")
	}
	if(blueRightTrue == true){
		mc_Slime1.x+= runSpeed;
		trace("Blue Right Is True")
	}
}
function blueGravity(event:Event){
	if(mc_Slime1.hitTestObject(mc_Grass)){
		blueOnGround = true;
		mc_Slime1.y = mc_Slime1.y;
		trace("blueOnGround = true;");
	}else{
		if(blueOnGround == false){
			yPullSpeed += gravPull;
			mc_Slime1.y += yPullSpeed;
			blueOnGround = false;
			trace("blueOnGround = false;")
		}
	}
}
	//trace(String(blueLeftTrue));
stage.addEventListener(KeyboardEvent.KEY_DOWN, checkSideMotion);
stage.addEventListener(Event.ENTER_FRAME, sideMovement);
stage.addEventListener(KeyboardEvent.KEY_UP, sideMotionFalse);
stage.addEventListener(Event.ENTER_FRAME, blueGravity);

The problem is, the "slime" mc actually falls a little bit through the grass layer. what can I do to fix this??

ALSO. Can anybody point me in the right direction as far as a script that makes the MC "jump", still being affected by gravity?

[cancerinform]

You need to remove the event listener when hitting has occurred.
stage.removeEventListener(Event.ENTER_FRAME, blueGravity);

Also it is better to use the Timer class, since ENTER_FRAME is dependent on the framerate.

[kavanstudios]

I added that line of code into the blueGravity function but I still have the same problem.

[kavanstudios]

Also, what can I do to add the ability of the mc_Slime1 to jump?

[cancerinform]

One question for one thread. Did you try the timer with 1ms delay? Enterframe is really not good to use. Also I don't know how the movieclip shapes look like.