Vagrant Story:skill hitrate calc

For enemies, 10% is added to the result.

0	nothing
1	100 if last attack did hit, else miss
2	100 + gems (shaman/sorcerer)
3	normal (physical attacks):
	100 +
	+ (att.AGL+equip.AGL)*(1-RISK/100) -
	- (def.AGL+equip.AGL+Bodypart.evade)*(1-RISK/100) +
	+ gems
4	exorcism/banish
	(att.INT+equip.INT)*(1-RISK/100)*(HP/HPmax) -
	- (def.INT+equip.INT+Bodypart.evade)*(1-RISK/100) +
	+ gems
5	warlock:
	130 - skill.cost +
	+ (att.AGL+equip.AGL)*(1-RISK/100) -
	- (def.AGL+equip.AGL+Bodypart.evade)*(1-RISK/100) +
	+ gems
6	analyze/unlock:
	(RISK+150)*100/256
7	chain attacks:
	(1-def.chainevade/256)*100