Forums → Programming Forum → Press Key Once

this should work

class "Your MC" extends MovieClip
{
var speed;
var once;

function onLoad()
{
speed = 10;
once = 0 ;
}
function onEnterFrame()
{
if(Key.isDown(Key.RIGHT)&& once == 0)
{
_x += speed;
once += 1;
}
}
}

not works.
dont even move. But i have sound to my character's walk and when i hold one direction the sound starts all over again.

post what your code looks like.

Are you using AS2 or AS3?

The code is very different between the 2 things.

****. Didn't see your thing at the top, sorry

I don't know anything about AS2

Just that your character move?

My code:

onClipEvent (load) {
power = 3;
_root.soundFX = new Sound();
}
onClipEvent (enterFrame) {
if (Key.isDown(Key.LEFT)) {
_x -= power;
_root.soundFX.attachSound("walk"
_root.soundFX.start(0, 1);
}
if (Key.isDown(Key.RIGHT)) {
_x += power;
_root.soundFX.attachSound("walk"
_root.soundFX.start(0, 1);
}
if (Key.isDown(Key.UP)) {
_y -= power;
_root.soundFX.attachSound("walk"
_root.soundFX.start(0, 1);
}
if (Key.isDown(Key.DOWN)) {
_y += power;
_root.soundFX.attachSound("walk"
_root.soundFX.start(0, 1);
}
}

I have problem with the walk and the sound The sound just starting all over again when i hold one of the arrow keys.

you need to add four more var and set them all to Zero. then you need to add && "varName" == 0) after "if (Key.isDown(Key.RIGHT)" your new if statement should be if (Key.isDown(Key.RIGHT)&& "varName" == 0)

Sry i don't know anything about VARIABLES can you show your idea with Key.RIGHT?

look at my first post.
var once; tells it to use once as a variable.

once = 0; this sets the var once = 0.

if(Key.isDown(Key.RIGHT)&& once == 0)this says to work only if right arrow is down and once = 0.

once += 1; this sets once = 1 so that it won't work to press the right arrow any more until you set once back to 0.

I add this code, but don't work. Don't even move.

If you just tell me what to do with the sound, because i can do the walking part.

I've never done sound before but this tutorial might help.

I knew about this tutorial, but i couldn'4 figure it out. Its with another methold, but i can't find the methold i need.

Any idea? which methold is what i need?