Function NPCC_aimVary

src/SB/Game/zNPCSupport.cpp:683–767

}

F32 NPCC_aimVary(xVec3* dir_aim, xVec3* pos_src, xVec3* pos_tgt, F32 dst_vary, S32 flg_vary,
                 xVec3* pos_aimPoint)
{
    F32 dst_toFake = 0.0f;
    xVec3 dir_left = {};
    xVec3 dir_toFake = {};
    xVec3 dir_toReal = {};
    xVec3 vec_offset = {};
    xVec3 pos_tgtFake = {};

    xVec3Sub(&dir_toReal, pos_tgt, pos_src);

    if (flg_vary & 0x10)
    {
        dir_toReal.y = 0.0f;
    }

    F32 mag_vary = xVec3Length(&dir_toReal);
    if (mag_vary < 0.001f)
    {
        if (mag_vary > 0.0f)
        {
            xVec3SMulBy(&dir_toReal, 100000.0f);
            xVec3Normalize(&dir_toReal, &dir_toReal);
        }
        else
        {
            xVec3Copy(dir_aim, &g_X3);
        }

        if (pos_aimPoint)
        {
            xVec3Copy(pos_aimPoint, pos_tgt);
        }

        return mag_vary;
    }

    xVec3SMulBy(&dir_toReal, 1.0f / mag_vary);
    xVec3Cross(&dir_left, &g_Y3, &dir_toReal);

    F32 mag_updown;
    if (flg_vary & 0x8)
    {
        mag_updown = dst_vary;
    }
    else
    {
        mag_updown = 2.0f * (xurand() - 0.5f) * dst_vary;

        F32 fv;
        if ((flg_vary & 0x1) && (flg_vary & 0x2))
        {
            fv = 2.0f * (xurand() - 0.5f);
        }
        else if (flg_vary == 0x1)
        {
            fv = xurand();