How to avoid delayed keyboard input?

Programming Questions

thiezar

How to avoid delayed keyboard input?

in Programming Questions • 2 years ago

Say I have this code:

void keyPressed() {
if(keyCode==UP){
player.y-=5;
}
}

This way the player moves up if I keep pressed the UP key.

The problem is when I first hit the key, the player goes up by 5px, then WAITS a bit, and then continues to move up.
Why he waits? How can I fix it? I'm sure is an input issue not a programming error. Is there a way to say to Procesing I don't want that delay?

Replies(4)

clankill3r

Re: How to avoid delayed keyboard input?

2 years ago

maybe it should be inside draw.

atleast this works smooth for me:

int yPos = 600;
void setup(){
size(600, 600);
}
void draw(){
if(keyPressed){
if(keyCode == UP){
yPos --;
}
}
ellipse(width/2, yPos, 5, 5);
}

thiezar

Re: Re: How to avoid delayed keyboard input?

2 years ago

Great! This works!
This way you check every frame if a key is pressed. But it doesn't work if you need to press a key without keep it pressed.
So I used an external function to read continuous pressing of some keys and I call it in the draw function, and I used the keyPressed function for normal key pressing.
Thank you for you help