public A_FleeState(StateMachine sm, NPC_A npc_a) : base(sm, npc_a) { _npc = npc_a; }
public A_PursuitState(StateMachine sm, NPC_A npc_a) : base(sm, npc_a) { _npc = npc_a; }
public A_State(StateMachine sm, NPC_A _npc_a) : base(sm) { npc_a = _npc_a; }