I have to take a piece of data, and apply a large number of possible variables to it. I really don't like the idea of using a gigantic set of if statements, so i'm looking for help in an approach to simplify, and make it easier to maintain.

As an example:

```
if (isSoccer)
    val = soccerBaseVal;
else if (isFootball)
    val = footballBaseVal;
.... // 20 different sports

if (isMale)
   val += 1;
else
    val += 5;

switch(dayOfWeek)
{
    case DayOfWeek.Monday:
       val += 12;
    ...
}

```

etc.. etc.. etc.. with possibly in the range of 100-200 different tests and formula variations.

This just seems like a maintenance nightmare. Any suggestions?

EDIT:

To further add to the problem, many variables are only used in certain situations, so it's more than just a fixed set of logic with different values. The logic itself has to change based on conditions, possibly conditions applied from previous variables (if val > threshold, for instance). 

So yes, i agree about using lookups for many of the values, but I also have to have variable logic.