Gameboy Development Forum

If you are iterating over an array of structs, I think (I checked several years ago) it was a good idea to do this:

p = &array[0];
for (int i = 0; i < elements; i++)
{
    // do things with p
    magic = p->x + p->y;
    // etc

    p++;
}

Rather than this:

for (int i = 0; i < elements; i++)
{
    // do things with p[i]
    magic = p[i].x + p[i].y;
    // etc
}

In the second case I think the compiler added multiplications when calculating the base address of each element.

It's hard to tell you what the problem may be and how to fix it. The CPU is just not too fast, and using C doesn't help.

Last edited by AntonioND (2019-12-04 17:44:29)

If you're still trying to get more performance out of your game, I would recommend spreading out all the position checks. Instead of doing all of them every tenth frame, maybe some of them at a more frequent interval to distribute the workload more evenly. Something as simple as alternating between checking odds and evens and checking every fifth frame.