Question

I am trying to do a simple pong game for 2 players.

The first one controls his pad with the A and Q (azerty keyboard). The second one controls his pad with the P and M.

Here is the code

function handleKeyDown(e) {
    switch (e.keyCode) {
        case KEYCODE_ESC:
            break;
        case KEYCODE_UP:
            p1Bitmap.y = p1Bitmap.y - 10;
            break;
        case KEYCODE_DOWN:
            p1Bitmap.y = p1Bitmap.y + 10;
            break;
        case KEYCODE_A:
            p1Bitmap.y = p1Bitmap.y - 10;
            break;
        case KEYCODE_Q:
            p1Bitmap.y = p1Bitmap.y + 10;
            break;
        case KEYCODE_P:
            p2Bitmap.y = p2Bitmap.y - 10;
            break;
        case KEYCODE_M:
            p2Bitmap.y = p2Bitmap.y + 10;
            break;
    }
}

The problem is that when player 1 presses on A and player 2 on M, the first player’s key gets ignored.

It is possible to get multiple key event repeated ? (for the example of player 1 A and player 2 M I would like to get this : AMAMAMAMAMAMAMAMAMAMAMAMetc instead of just AMMMMMMMMMMMMMMM)

By the way, I am doing this for Windows 8 app (html/css/js) and CreateJS.

Answer 1

You could keep the movement going until you detect the corresponding keyup event. Start moving on keydown, don’t stop until keyup.

Also, it should be noted that keydown is different than keypress. keydown will only fire once, no matter how long you hold the key down. keypress on the other hand fires for every time a character is inserted (or would be inserted), so would see repeated events as long as you’re holding the key down.