词缀等级计算方法。 翻译：galaxys 
 
关键字：

  

  alvl = 词缀等级。affix level. For an item this is the 
  level that is used to compare to the level and max level as found in the prefix 
  and suffix tables. When referring to a prefix/suffix it is the value listed 
  in the level column. 
ilvl = 物品等级internal level (also referred to sometimes 
  as the item level; better yet item creation level). This value is set at the 
  time of an items creation. For monster drops the ilvl=mlvl. (BTW ilvl matches 
  up with the terminology of the cubemain.txt---'itemlevel pct a') 
mlvl = 怪物的等级
clvl = 角色等级
qlvl = 物品质量等级quality level. This value is found 
  in the level column of armor.txt, weapons.txt and misc.txt. This is the value 
  that is used to create the weapXX and armoXX treasure classes. 
magic_lvl = 魔法词缀奖励。magic level bonus on some items. 
  Currently the only ones that have this are wands (normal and exceptional, but 
  not the elite ones), staves, orbs (all with a value of 1) and circlets (circlet=3, 
  Coronet=8, Tiara=13, Diadem=1. 
每一个魔法物品生成时都会计算其词缀等级：

  

  （ilvl大于99视为99，qlvl大于ilvl时用qlvl代替ilvl计算）

  mlvl大于0时，alvl=ilvl+magic_lvl

  mlvl=0时：

  如果 (ilvl<(99-qlvl/2)) 

  那么 {alvl=ilvl-qlvl/2} 

  否则 {alvl=2*ilvl-99} 

  （如果以上计算得到的词缀等级大于99，视为99）。