我正在創建一個基於文本的冒險遊戲,涉及多個房間,房間內的物品,以及在這些房間中來回移動。房間的鄰居存儲在一個HashMap中,我根本沒有經驗。我有一個名爲getNeighbor的方法,意思是按照要求的方向返回房間的鄰居,但我無法弄清楚如何做到這一點。下面的代碼:我可以在這個if語句中返回什麼?
public class Room
{
private String roomDescript;
private Item item;
private HashMap <String, Room> myNeighbors;
public Room (String pDescription){
roomDescript = pDescription;
item = null;
}
public Room (String pDescription, Item pItem){
roomDescript = pDescription;
item = pItem;
}
public String setRoomDescript(){
return this.roomDescript;
}
public String getRoomDescript(){
return this.roomDescript;
}
public Item setItem(){
return this.item;
}
public Item getItem(){
return this.item;
}
public void addItem (Item i){
i = item;
}
public boolean hasItem(){
if(item != null){
return true;
}else{
return false;
}
}
public void addNeighbor (String pDirection, Room r){
myNeighbors.put(pDirection, r);
}
public Room getNeighbor (String pDirection){
if(myNeighbors.containsKey(pDirection)){
return ;
}else{
return null;
}
}
}
感謝你們倆!這工作像一個魅力。 – 2012-04-04 23:43:44
@MichaelMoore:不客氣。不要忘記[接受](http://meta.stackexchange.com/questions/5234/how-does-accepting-an-answer-work)你發現對你最有幫助的答案。 – amit 2012-04-05 06:13:33