Code Problem Collision with Frames and loose Live

[noaim]

Hi Guys,

i have a problem with a code,
i want that the variable live is set into -1*if CGRect the ball frame and the snake frame.

My Code:

if (CGRectIntersectsRect(ball.frame, snake.frame)) {
if (ball.center.y + 10 > snake.center.y) {
if (ballVelocity.y < 0) {
snakeVeloctiy.y = .1;
live = live -1;
}
}
}

But then i lost live a few times for each collision in this few sec. i only want that it´s loose it for one time.

I hope you understand my Problem
So Thanks for every Help!

Greetings Andreas

[noaim]

Can´t anybody help me?

[Zanzibar7]

Originally Posted by noaim

Hi Guys,

i have a problem with a code,
i want that the variable live is set into -1*if CGRect the ball frame and the snake frame.

My Code:

if (CGRectIntersectsRect(ball.frame, snake.frame)) {
if (ball.center.y + 10 > snake.center.y) {
if (ballVelocity.y < 0) {
snakeVeloctiy.y = .1;
live = live -1;
}
}
}

But then i lost live a few times for each collision in this few sec. i only want that it´s loose it for one time.

I hope you understand my Problem
So Thanks for every Help!

Greetings Andreas

If I understand your question, then one way you could fix it is to create a new integer, set it equal to 0, then add 1 to that instead of live. Then ask if the new integer is equal to 1, and if it is subtract 1 from live. Then when the rectangles stop intersecting, set the new integer back to 0.

It would look something like this:

//Before your main loop: Integer myInteger = 0;

if (CGRectIntersectsRect(ball.frame, snake.frame)) {
        if (ball.center.y + 10 > snake.center.y) {
            if (ballVelocity.y < 0) {
                snakeVeloctiy.y = .1;
                myInteger++;
                if (myInteger == 1) {
                    live--; // live-- is the same as live = live - 1
                }
            }
        }
    }
else {
    myInteger = 0;
}

I don't know if this is the best solution, but I think it will work.

P.S. It's not a good idea to expect an answer in the first few hours on any forum.
http://www.iphonedevsdk.com/forum/ip...uidelines.html

[noaim]

Yes, that is what i mean,
thanks a lot, it is working perfect.

In Future i consider your advice,
thanks!