PT spiral drawing

//paste that in main.c

int spiralx, spiraly;
float spiralv;

double degtorad(double angle)
{
    return angle * 3.14 / 180;
}

void drawspiral(maxspiral,spart)
{
    int i = 0;
    for(i = 0; i < maxspiral; i++)
    {
    if(spiralv!=360)
    {
        spiralv+=0.1;
    }
    else if(spiralv==360)
    {
        spiralv = 1;
    }

    spiralx = mousex+spiralv*cos(degtorad(spiralv));
    spiraly = mousey+spiralv*sin(degtorad(spiralv));
    create_part(-1,spiralx,spiraly,spart);
    }
}


// that too in main.c, but next to sdl_key checkings


        if(sdl_key=='e')
        {
            drawspiral(360,sl);
        }
        if(sdl_key=='r')
        {
            spiralv = 0;
        }