b -1;//0
b 0;//2
b b;//3

b2 b;
//b2 -1;
//+ LayerRef,Pos,REF;//REF ߋɓ̃{[ꍇ́AlQƂ
//+ LayerRef,Dir,REF;//REF ߋɓ̃{[ꍇ́AlQƂ
