How do I add collision between player projectile and enemies?

Processing Coding Questions
9

I’ve managed to get two moving objects to detect whether they’ve touched or not, but currently it only works when the center of the sprites touch.

I tried adding the sprite width and height into the collision check, but it still doesn’t work.
This is what I have:

boolean collidingWith(Collidable other){
        return x + w + movementSpeed> other.x &&
               x - movementSpeed< other.x + other.w &&
               y + h + movementSpeed> other.y &&
               y - movementSpeed < other.y + other.h;
    }

It also doesn’t work very consistently when both objects are moving

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