public boolean okMessage(Environmental myHost, CMMsg msg) { if (!super.okMessage(myHost, msg)) return false; if (msg.targetMinor() == CMMsg.TYP_ENTER) { if (msg.target() == this) { MOB mob = msg.source(); if ((mob.location() != null) && (mob.location().roomID().length() > 0)) { int direction = -1; for (int d = Directions.NUM_DIRECTIONS() - 1; d >= 0; d--) { if (mob.location().getRoomInDir(d) == this) direction = d; } if (direction < 0) { mob.tell("Some great evil is preventing your movement that way."); return false; } msg.modify( msg.source(), getAltRoomFrom(mob.location(), direction), msg.tool(), msg.sourceCode(), msg.sourceMessage(), msg.targetCode(), msg.targetMessage(), msg.othersCode(), msg.othersMessage()); } } } return true; }