So basically how bad did I fuck up?

#include "zcommon.acs"

function int q_acos(int x, int y, int p)
{
    int baseangle = (3.141592653/2);
    int r = sqrt( pow(x, 2) + pow(y, 2) );
    int neg = 0;
    int big = 0;

    //Check if angle is over 180
    if (y < 0)
    {
        neg = 1;
    }

    //check if angle is over 90
    if (cos(baseangle) > (x/r))
    {
        big = 1;
        x = -x;
    }

    for (int i = 1; i <= p; i++)
    {
        if (cos(baseangle) > (FixedDiv(x,r)))
        {
            baseangle += (baseangle/(1+i));
        }else if (cos(baseangle) < (FixedDiv(x,r))){
            baseangle -= (baseangle/(1+i));
        }else{
            i = p;
        }
    }

    //if angle was over 90, fix
    if (big == 1)
    {
        baseangle = 3.141592653 - baseangle;
    }

    //if angle was over 180, fix
    if (neg == 0)
    {
        return baseangle;
    }else{
        return 3.141592653 + (3.141592653 - baseangle);
    }
}

function int pow(int x, int y)
{
    int n = 1.0;
    while (y-- > 0) { n = FixedMul(n, x); }
    return n;
}