Detect if snake touches apple Ruby2d

Question

I am right now creating a snake game in ruby 2d and need a way for the computer to detect when the snake touches the apple.

I have found nothing on this topic as the ruby2d community is fairly small.

Answer 1

You are gonna want to write a function that returns true whenever snake has the same xy-coordinates as the apple.

Let's suppose your apple a has member variables x and y. The snakes head s also has its current x and y coordinates saved in its member variables x and y.

def hit(a, s)
    return a.x == s.x && a.y == s.y
end

So in your gameloop always call hit(a, s) and do what you need to do based on the boolean outcome of the function.