Effect in certain area?

1

Hi - in my flash site im creating i have a certain area which i call an effect box/area and in it is just going to be funny stupid little effects.

Anyway i have script to make an object move randomly around; except i do not know how to make it so that the effect is in my effect box/area instead of all over my site?? i have played around with the width and height varibles but just cant get it to work???

Here is my script:

onClipEvent (load) {
//data you may want to change
width = 600;
height = 600;
speed = Math.round(Math.random()*2)+1;
//initial positions
x = Math.random()*width;
y = Math.random()*height;
this._x = x;
this._y = y;
x_new = Math.random()*width;
y_new = Math.random()height;
}
onClipEvent (enterFrame) {
//x movement
if (x_new>this._x) {
sign_x = 1;
} else {
sign_x = -1;
}
dx = Math.abs(x_new-this._x);
if ((dx>speed) || (dx<-speed)) {
this._x += sign_xspeed;
} else {
x_new = Math.random()width;
}
//y movement
if (y_new>this._y) {
sign_y = 1;
} else {
sign_y = -1;
}
dy = Math.abs(y_new-this._y);
if ((dy>speed) || (dy<-speed)) {
this._y += sign_yspeed;
} else {
y_new = Math.random()*height;
}
}

2

this is how i fixed it:

create a box on the stage where you want your effect taken place…
then give it the instance name “box”

then replace your code with:


onClipEvent (load) {
	//data you may want to change
	box_x = _root.box._x;
	box_width = _root.box._width-_width;
	box_y = _root.box._y;
	box_height = _root.box._height-_height;
	//
	x_new = box_x+Math.random()*box_width;
	y_new = box_y+Math.random()*box_height;
	speed = Math.round(Math.random()*2)+1;
	//initial positions
	x = box_x+Math.random()*box_width;
	y = box_y+Math.random()*box_height;
	this._x = x;
	this._y = y;
}
onClipEvent (enterFrame) {
	//x movement
	if (x_new>this._x) {
		sign_x = 1;
	} else {
		sign_x = -1;
	}
	dx = Math.abs(x_new-this._x);
	if ((dx>speed) || (dx<-speed)) {
		this._x += sign_x*speed;
	} else {
		x_new = box_x+Math.random()*box_width;
	}
	//y movement
	if (y_new>this._y) {
		sign_y = 1;
	} else {
		sign_y = -1;
	}
	dy = Math.abs(y_new-this._y);
	if ((dy>speed) || (dy<-speed)) {
		this._y += sign_y*speed;
	} else {
		y_new = box_y+Math.random()*box_height;
	}
}

note these lines:

box_x = _root.box._x;
box_width = _root.box._width-_width;
box_y = _root.box._y;
box_height = _root.box._height-_height;

should fix it :slight_smile: (if you dont want the box, just change the box_ vars to co-ordinates…)