check:
1. EFFECT_EXTRA_ATTACK
2. chain attack
3. EFFECT_EXTRA_ATTACK_MONSTER
4. effects with target limit(chain attack with a target,
EFFECT_ATTACK_ALL)

http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=14710&keyword=&tag=-1
Now the system uses field id instead of real field id.

http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=15829&keyword=&tag=-1
Now Duel.ChangeAttackTarget() cannot change the attack of monsters with
EFFECT_CANNOT_DIRECT_ATTACK into direct attack.

avoid conflict of core.destroy_set

http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=17032&keyword=&tag=-1
http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=9560&keyword=&tag=-1

removed:
sub_attacker, sub_attack_target: Changing attack target is done by functions
attack_cancelable: It is removed since it will interrupt attack-announce related parts.
Duel.ReplaceAttacker(): No longer used.

EFFECT_RISE_TO_FULL_HEIGHT: It is used by "Rise to Full Height".
EFFECT_ONLY_ATTACK_MONSTER: The opponent monsters can only attack monster X.
EFFECT_ONLY_BE_ATTACKED: The targets of
EFFECT_RISE_TO_FULL_HEIGHT/EFFECT_ONLY_ATTACK_MONSTER.
EFFECT_MUST_ATTACK_MONSTER: If the opponent monsters attack, they can only attack monster X.
EFFECT_MUST_BE_ATTACKED: The targets of EFFECT_MUST_ATTACK_MONSTER.
EFFECT_MUST_ATTACK: The opponent monsters must attack.

Duel.ChangeAttackTarget(): Now it will change the attacker and raise events.
Duel.HintSelection(): Now it will not move cards.

attack_state_count/announce_count:
1. If no target exists, it increases after attack announce.
2. If there are targets, it increases after traget selection.

EFFECT_PRE_MONSTER
Allow a spell/trap card to have a monster status.

Card.AddMonsterAttribute
Add EFFECT_PRE_MONSTER and necessary information.

Card.TrapMonsterComplete
Add EFFECT_ADD_TYPE and EFFECT_USE_EXTRA_SZONE.

This reverts commit 25e8dd71.

http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=16069&keyword=&tag=-1
http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=15427&keyword=&tag=-1

following SendtoGrave, SendtoHand, SendtoDeck, extra_p_count