SetupExFog() {

// This version by <|WHC|>Grassy is to setup expfog randomly,
// most of the time it will pick a moderate value
// It will also pick a random fog color within reasonable limits
// Thanks to WuphonsReach for the layout and idea.

fogclass = randomint(10);
switch(fogclass) {

case 0: // Heavy, .00060 to .00080 with 10% chance
base = .00060;
fog = ( base + randomfloat(.00020));
break;

case 1: // Light, .00020 to .00040 with 10% chance
base = .00020;
fog = ( base + randomfloat(.00020));
break;

default: // Medium, .00040 to .00060 with 80% chance
base = .00040;
fog = ( base + randomfloat(.00020));
break;
}

colmin = 0.20; //minimum fogcolor is 0.2
fogcolor = ( colmin + randomfloat(0.80)); //maximum fogcolor could be 1

setExpFog(fog, fogcolor, fogcolor, fogcolor, 0);
}