#include <Windows.h>
#include <math.h>
#include <CPatch.h>

double NormalisePoint(float *);
float gRadarCircle = 0.000001;

BOOL APIENTRY DllMain(HMODULE module, DWORD reason, LPVOID reserved)
{
    if(reason == DLL_PROCESS_ATTACH)
    {
        CPatch::SetPointer(0x58585C, &gRadarCircle);
        CPatch::RedirectCall(0x5751F2       , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x32A , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x396 , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x416 , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x49E , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x51E , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x659 , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x93F , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0xAD7 , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0xB5B , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0xC37 , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0xCE7 , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0xD9F , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0xE53 , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0xF87 , NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x100B, NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x111C, NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x11A3, NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x12B7, NormalisePoint);
        CPatch::RedirectCall(0x5773D0+0x1343, NormalisePoint);
        CPatch::RedirectCall(0x585B20+0x76  , NormalisePoint);
        CPatch::RedirectCall(0x586E97       , NormalisePoint);
        CPatch::RedirectCall(0x587221       , NormalisePoint);
        CPatch::RedirectCall(0x587604       , NormalisePoint);
        CPatch::RedirectCall(0x58798F       , NormalisePoint);
        CPatch::RedirectCall(0x588161       , NormalisePoint);
        CPatch::RedirectCall(0x58820D       , NormalisePoint);
    }
    return TRUE;
}

double NormalisePoint(float *pos)
{
    double r, angle;
    if(READCHAR(0xBA67A1))
        r = sqrt(pos[0] * pos[0] + pos[1] * pos[1]);
    else
    {
        r = sqrt(pos[0] * pos[0] + pos[1] * pos[1]);
        if(r > 1.0)
        {
            if(pos[0] > -1.0 && pos[0] < 1.0 && pos[1] > -1.0 && pos[1] < 1.0)
                r = 0.99;
            else
            {
                angle = atan2(pos[1], pos[0]) * 57.295779513 + 180.0;
                if(angle <= 45 || angle > 315)
                {
                    pos[0] = 1.0;
                    pos[1] = sin(angle / 57.295779513) * 1.4142135623;
                }
                else if(angle > 45 && angle <= 135)
                {
                    pos[0] = cos(angle / 57.295779513) * 1.4142135623;
                    pos[1] = 1.0;
                }
                else if(angle > 135 && angle <= 225)
                {
                    pos[0] = -1.0;
                    pos[1] = sin(angle / 57.295779513) * 1.4142135623;
                }
                else
                {
                    pos[0] = cos(angle / 57.295779513) * 1.4142135623;
                    pos[1] = -1.0;
                }
            }
        }
    }
    return r;
}