Custom Weighted Scale [closed]

Let fabs be a function that returns the absolute value of a float.
Then the formula could look like this:

function calcRank(float v1, float v2) {
    float k = fabs(v2-30.0);
    if (k < 30.0) {
        // Rule 1 and 2
        rank = k/60.0 + (60.0-k) * v1 / 60.0;
    } else {
        // Rule 3
        rank = v1;
    }
    return rank;
}