Implement basic quest condition handling

Quests that require talking to npcs now work.

src/main/java/emu/grasscutter/game/quest/ServerQuestHandler.java

@@ -0,0 +1,91 @@
+package emu.grasscutter.game.quest;
+
+import java.util.Set;
+
+import org.reflections.Reflections;
+
+import emu.grasscutter.data.custom.QuestConfigData.QuestCondition;
+import emu.grasscutter.game.quest.enums.QuestTriggerType;
+import emu.grasscutter.game.quest.handlers.QuestBaseHandler;
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.server.game.GameServer;
+import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
+import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
+
+@SuppressWarnings("unchecked")
+public class ServerQuestHandler {
+	private final Int2ObjectMap<QuestBaseHandler> condHandlers;
+	private final Int2ObjectMap<QuestBaseHandler> contHandlers;
+	private final Int2ObjectMap<QuestBaseHandler> execHandlers;
+	
+	public ServerQuestHandler() {
+		this.condHandlers = new Int2ObjectOpenHashMap<>(); 
+		this.contHandlers = new Int2ObjectOpenHashMap<>();
+		this.execHandlers = new Int2ObjectOpenHashMap<>();
+		
+		this.registerHandlers();
+	}
+
+	public void registerHandlers() {
+		this.registerHandlers(this.condHandlers, "emu.grasscutter.game.quest.conditions");
+		this.registerHandlers(this.contHandlers, "emu.grasscutter.game.quest.content");
+		this.registerHandlers(this.execHandlers, "emu.grasscutter.game.quest.exec");
+	}
+	
+	public void registerHandlers(Int2ObjectMap<QuestBaseHandler> map, String packageName) {
+		Reflections reflections = new Reflections(packageName);
+		Set<?> handlerClasses = reflections.getSubTypesOf(QuestBaseHandler.class);
+		
+		for (Object obj : handlerClasses) {
+			this.registerPacketHandler(map, (Class<? extends QuestBaseHandler>) obj);
+		}
+	}
+
+	public void registerPacketHandler(Int2ObjectMap<QuestBaseHandler> map, Class<? extends QuestBaseHandler> handlerClass) {
+		try {
+			QuestValue opcode = handlerClass.getAnnotation(QuestValue.class);
+
+			if (opcode == null || opcode.value().getValue() <= 0) {
+				return;
+			}
+
+			QuestBaseHandler packetHandler = (QuestBaseHandler) handlerClass.newInstance();
+
+			map.put(opcode.value().getValue(), packetHandler);
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+	
+	// TODO make cleaner
+	
+	public boolean triggerCondition(GameQuest quest, QuestCondition condition, int... params) {
+		QuestBaseHandler handler = condHandlers.get(condition.getType().getValue());
+
+		if (handler == null || quest.getConfig() == null) {
+			return false;
+		}
+		
+		return handler.execute(quest, condition, params);
+	}
+	
+	public boolean triggerContent(GameQuest quest, QuestCondition condition, int... params) {
+		QuestBaseHandler handler = contHandlers.get(condition.getType().getValue());
+
+		if (handler == null || quest.getConfig() == null) {
+			return false;
+		}
+		
+		return handler.execute(quest, condition, params);
+	}
+	
+	public boolean triggerExec(GameQuest quest, QuestCondition condition, int... params) {
+		QuestBaseHandler handler = execHandlers.get(condition.getType().getValue());
+
+		if (handler == null || quest.getConfig() == null) {
+			return false;
+		}
+		
+		return handler.execute(quest, condition, params);
+	}
+}