/**
* Returns true if the given quest made progress and/or no further interactions should occur.
*
* @param player
* @param quest Quest instance to check for progress
* @param handler IQuestHandler will have its methods called at appropriate times; pass {@link
* #DEFAULT_QUEST_HANDLER} if none available
* @param data Optional arguments passed to the various {@code IQuest} methods, e.g. {@link
* IQuest#begin begin} and {@link IQuest#complete complete}
* @return True if something happened, i.e. the calling interaction should be canceled
*/
public static boolean checkQuestProgress(
EntityPlayer player, IQuest quest, IQuestHandler handler, Object... data) {
boolean changed = false;
if (quest.isComplete(player)) {
// do nothing if quest is already complete
} else if (quest.canBegin(player)) {
if (quest.begin(player, data)) {
handler.onQuestBegun(quest, player);
changed = true;
}
} else if (quest.canComplete(player)) {
if (quest.complete(player, data)) {
handler.onQuestCompleted(quest, player);
changed = true;
}
} else if (quest.hasBegun(player) && quest.update(player, data)) {
handler.onQuestChanged(quest, player);
changed = true;
}
if (!changed) { // check for hint
IChatComponent hint = quest.getHint(player, data);
if (hint != null) { // result may be different on client vs. server due to Random
if (!player.worldObj.isRemote && !hint.getFormattedText().equals("")) {
player.addChatMessage(hint);
}
return true;
}
}
if (changed && quest.requiresSync() && player instanceof EntityPlayerMP) {
PacketDispatcher.sendTo(new SyncQuestPacket(quest), (EntityPlayerMP) player);
}
return changed;
}
/**
* Reconstructs the IQuest instance from the NBTTagCompound, assuming the fully qualified class
* name is stored using the key "QuestClass"
*/
public static IQuest loadFromNBT(NBTTagCompound compound) {
try {
Class<?> clazz = Class.forName(compound.getString("QuestClass"));
Object o = clazz.newInstance();
if (o instanceof IQuest) {
((IQuest) o).readFromNBT(compound);
return (IQuest) o;
} else {
ZSSMain.logger.warn("Failed to load quest from NBT: " + compound);
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
return null;
}
/** Writes the quest to NBT, guaranteeing that the fully qualified class name is included */
public static NBTTagCompound saveToNBT(IQuest quest) {
NBTTagCompound compound = new NBTTagCompound();
quest.writeToNBT(compound);
compound.setString("QuestClass", quest.getClass().getName());
return compound;
}
