Moving back a certain number of Frames

[incognitos]

Hey,

I'm trying to go back a certain number of frames (let's say 20) after I hit the "Left" keyboard key.

import flash.events.KeyboardEvent;
import flash.ui.Keyboard; 

function keyEvent ( e:KeyboardEvent )
{
    switch ( e.keyCode ) {
        case Keyboard.LEFT :
            prevFrame();

        case Keyboard.RIGHT :
            nextFrame();
    
    }
}

stage.addEventListener ( KeyboardEvent.KEY_DOWN, keyEvent ); 

That is what i have right now, but rather than simply having it go back one frame using (prevFrame(), i want it to jump back 20 frames. So if I was at frame 40, and hit the "left" button, then i'd go back to frame 20.

Any ideas? I'm a completely noob by the way I'm just beginning with AS3.

Thanks so much!

[ifmi]

hey,

it is quite easy:

gotoAndPlay ( currentFrame + 20 );

p.s. just add some checkings:

value > 0 and value < totalFrames

[incognitos]

It worked perfectly, thank you so much

[incognitos]

Hey,

I just had a quick follow-up. Let's say I only want the timeline to jump back 9 frames when I hit "Left" all the time EXCEPT when i'm at a frame-label called "entry-slide" and another frame-label called "rivalry-slide", whereby the timeline would only go backwards 1 frame.

This is what I have:

function keyEvent ( e:KeyboardEvent )
{
    switch ( e.keyCode ) {
        case Keyboard.LEFT :
            if (currentLabel != "entry_slide" or "rivalry_slide") {
                gotoAndPlay ( currentFrame - 1);
            }
            else{
            gotoAndPlay ( currentFrame - 9 );
            }
        case Keyboard.RIGHT :
            nextFrame();
            
    
    }
}

stage.addEventListener ( KeyboardEvent.KEY_DOWN, keyEvent ); 

But this is not working.... any ideas?

Thanks!

[incognitos]

I realized the or doesn't work, so this is what i've setup, instead. In the particular instances where it needs to go back one frame, i just call the actual frame label, I still can't get it to work properly though .

import flash.events.KeyboardEvent;
import flash.ui.Keyboard; 

function keyEvent ( e:KeyboardEvent )
{
    switch ( e.keyCode ) {
        case Keyboard.LEFT :
            if (currentLabel != "entry_slide") {
                gotoAndPlay ("forces_slide");
            }
            if (currentLabel != "rivalry_slide") {
                gotoAndPlay ("entry_slide");
            }
            
            else {
            gotoAndPlay ( currentFrame - 9 );
            }
        case Keyboard.RIGHT :
            nextFrame();
            
    
    }
}

stage.addEventListener ( KeyboardEvent.KEY_DOWN, keyEvent ); 

[dawsonk]

import flash.events.KeyboardEvent;
import flash.ui.Keyboard;

function keyEvent( e:KeyboardEvent ) {

	switch ( e.keyCode ) {
		case Keyboard.LEFT :
			if (currentFrameLabel=="entry_slide") {
				gotoAndPlay( currentFrame - 1 );
			} else if (currentFrameLabel=="rivalry_slide") {
				gotoAndPlay( currentFrame - 1 );
			} else {
				gotoAndPlay( currentFrame - 9 );
			}
			break;

		case Keyboard.RIGHT :
			nextFrame();
			break;

		default :
			break;

	}
}

stop();
stage.addEventListener( KeyboardEvent.KEY_DOWN, keyEvent );

[incognitos]

Thank you for all your help!