Thanks Anon

LVL = sqrt("total score"/10)

rounded down to nearest integer

`float Q_rsqrt( float number ) { long i; float x2, y; const float threehalfs = 1.5F;

x2 = number * 0.5F;
y  = number;
i  = * ( long * ) &y;                       // evil floating point bit level hacking
i  = 0x5f3759df - ( i >> 1 );               // what the fuck? 
y  = * ( float * ) &i;
y  = y * ( threehalfs - ( x2 * y * y ) );   // 1st iteration

// y = y * ( threehalfs - ( x2 * y * y ) ); // 2nd iteration, this can be removed

return y;

}`

EDIT: Wow, Poal has some shitty code block formatting markup.