help with particle effect

[steviespin]

hi there.

I am trying to create a random particle effect that zooms from the distace to the foreground. I've seen and used methods like with "create fallign snow" but i'd like to change it to zoom instead of fall. (thinks starfield but with larger, scaling objects instead of stars)

has anyone seem a tutorial or sample with this type of effect?

thanks for any help or info!
SS

[cintari]

i just threw this together for you... really quick so it's nothing special but i think you will be able to get the idea from it.

[steviespin]

hey!

thanks for taking the time to do this. it's really helpful!

S

[steviespin]

Can I complicate this a bit more?

I'd love to know how i could make random particles head towards a specific location using actionscript. I can loosely imagine how this might be done by calculating distance and moving closer step by step, but my acripting skillz aren't up to following it through.

Could you help me there?

thanks!
Steve

[cintari]

sorry for the long wait, i came to work and forgot about the forums. here is the code to move the object to a target coordinate

speed =20;

target_x= //some number
target_y= //some number

tanx= target_x-this._x;
tany= target_y-this._y;
radangle = Math.atan2(tany,tanx);
this._rotation = radangle*180/Math.PI; // this is to point it in the right direction if you need to
deltay = speed * Math.sin(radangle);
deltax = speed * Math.cos(radangle);

function bombTarget(){
if(deltax<0){
if(target_x < this._x){
this._x += deltax;
this._y += deltay;
}
if(this._x <= target_x ){
bombing = false;
gotoAndPlay(2);
}

}
if(deltax>0){
if(target_x > this._x){
this._x += deltax;
this._y += deltay;
}
if(this._x >= target_x){
bombing = false;
gotoAndPlay(2);
}

}
}

i have the function as bombtarget but you can change it to whatever you want.

onClipEvent(enterFrame){
if(bombing){
bombTarget();
}
}

i hope that helps

[steviespin]

wow thanks so much for this.

I'm having trouble actually implementing the code though. flash is detecting errors.

Are you available to help me out a bit more?

thanks!
S

[cintari]

make sure you fill in your target numbers... and what errors are you getting?