vibr gradient

int graphics_VIBR(GRAPHICS_FUNC_ARGS)
{
    float maxtemp = fmax(cpart->tmp,cpart->temp);
    if (cpart->ctype > 1000 && cpart->ctype < 2000)
    {
        *colr += (int)restrict_flt((cpart->ctype-1000)/20,0,51);
        *colg += (int)restrict_flt((cpart->ctype-1000)/18,0,55);
        *colb += (int)restrict_flt((cpart->ctype-1000)/20,0,51);
    }
    else if (cpart->ctype >= 2000 && cpart->ctype < 3000)
    {
        *colr += (int)restrict_flt((cpart->ctype-2000)/20+51,51,100);
        *colg += (int)restrict_flt((cpart->ctype-2000)/31+55,55,87);
        *colb += (int)restrict_flt((cpart->ctype-2000)/20+51,51,100);
    }
    else if (cpart->ctype >= 3000 && cpart->ctype < 3200)
    {
        *colr += (int)restrict_flt((cpart->ctype-3000)/1.7+100,100,218);
        *colg += (int)restrict_flt((cpart->ctype-3000)/2+87,87,192);
        *colb += (int)restrict_flt((cpart->ctype-3000)/1.7+100,100,218);
    }
    else if (cpart->ctype >= 3200)
    {
        *pixel_mode = PMODE_NONE;
        *pixel_mode |= FIRE_ADD;
        *firea = 60;
        *firer = *colr;
        *fireg = *colg;
        *fireb = *colb;
        *colr = 146;
        *colg = 158;
        *colb = 113;
    }

    return 0;
}