Question about AITypes in creature scripts

When I look through creature scripts I see this:
Code:
: base(AIType.AI_Melee, FightMode.Closest, 10, 1, 0.2, 0.4)

My question is, what do the numbers mean??
 

Insanity

Rookie
If you mouse over them in visual studio, it will help you understand the usages next time.

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