Two questions

[wizzlebippi]

1. How do you read from a cfg file in a module?

2. How do the tangents work? Like the altitude vs ISP on a jet engine.

[NoMrBond]

Not sure what you're asking in regards to (1), could you clarify your query a little?

There is a thread by Taverius regarding (2); KSP Float Curves

[lo-fi]

1) It's all done with KSPField

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using UnityEngine;
using ObjectTools;


namespace MyProject
{
    public class SomePartModule : PartModule
    {
        [KSPField(isPersistant = false)]
        public int someInteger;
        [KSPField(isPersistant = false)]
        public int someInteger2 = 1;
        [KSPField(isPersistant = true)]
        public float someFloat = 1;
//more stuff here
}// end class
}//end namespace

In you config, you could have:

MODULE
{
        name = SomePartModule
        someInteger = 2
        someInteger2 = -1
        someFloat = 1.25
}

The values will be read out of the config and will overide what they are set to in the code. The variables must be declared public (C# defaults to private) for this to work. Notice the isPersistent attribute can be, and is, applied to the float in this case. This means that if the value is modified by the code in-game, the value will be stored in the persistence file for that instance of that part, and will be read back upon loading that save. HTH

That is assuming I've interpreted your question correctly..

[NathanKell]

Note, however, that KSPField works for only some types. It doesn't work for double, for instance.