Implement script support needed for dungeons

Only a few are supported right now
You will need certain script files in ./resources/Scripts

src/main/java/emu/grasscutter/game/dungeons/DungeonChallenge.java

@@ -0,0 +1,90 @@
+package emu.grasscutter.game.dungeons;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import emu.grasscutter.data.GameData;
+import emu.grasscutter.data.def.MonsterData;
+import emu.grasscutter.game.entity.EntityMonster;
+import emu.grasscutter.game.entity.GameEntity;
+import emu.grasscutter.game.world.Scene;
+import emu.grasscutter.net.proto.VisionTypeOuterClass.VisionType;
+import emu.grasscutter.scripts.data.SceneGroup;
+import emu.grasscutter.scripts.data.SceneMonster;
+import emu.grasscutter.server.packet.send.PacketDungeonChallengeBeginNotify;
+import emu.grasscutter.server.packet.send.PacketDungeonChallengeFinishNotify;
+import emu.grasscutter.server.packet.send.PacketSceneEntityAppearNotify;
+
+public class DungeonChallenge {
+	private final Scene scene;
+	private final SceneGroup group;
+	
+	private int challengeIndex;
+	private int challengeId;
+	private boolean isSuccess;
+	
+	private int score;
+	private int objective = 0;
+	
+	public DungeonChallenge(Scene scene, SceneGroup group) {
+		this.scene = scene;
+		this.group = group;
+		
+		objective += group.monsters.size();
+	}
+
+	public Scene getScene() {
+		return scene;
+	}
+
+	public SceneGroup getGroup() {
+		return group;
+	}
+	
+	public int getChallengeIndex() {
+		return challengeIndex;
+	}
+
+	public void setChallengeIndex(int challengeIndex) {
+		this.challengeIndex = challengeIndex;
+	}
+
+	public int getChallengeId() {
+		return challengeId;
+	}
+
+	public void setChallengeId(int challengeId) {
+		this.challengeId = challengeId;
+	}
+
+	public boolean isSuccess() {
+		return isSuccess;
+	}
+
+	public void setSuccess(boolean isSuccess) {
+		this.isSuccess = isSuccess;
+	}
+
+	public void start() {
+		getScene().broadcastPacket(new PacketDungeonChallengeBeginNotify(this));
+	}
+	
+	public void finish() {
+		getScene().broadcastPacket(new PacketDungeonChallengeFinishNotify(this));
+		
+		if (this.isSuccess()) {
+			this.getScene().getScriptManager().onChallengeSuccess();
+		} else {
+			this.getScene().getScriptManager().onChallengeFailure();
+		}
+	}
+
+	public void onMonsterDie(EntityMonster entity) {
+		score++;
+		
+		if (score >= objective) {
+			this.setSuccess(true);
+			finish();
+		}
+	}
+}

src/main/java/emu/grasscutter/game/dungeons/DungeonManager.java

@@ -45,9 +45,11 @@ public class DungeonManager {
 		}
 		
 		int sceneId = data.getSceneId();
+		player.getScene().setPrevScene(sceneId);
 		
 		player.getWorld().transferPlayerToScene(player, sceneId, data);
 		
+		player.getScene().setPrevScenePoint(pointId);
 		player.sendPacket(new PacketPlayerEnterDungeonRsp(pointId, dungeonId));
 	}
 	
@@ -64,7 +66,7 @@ public class DungeonManager {
 		Position prevPos = new Position(GameConstants.START_POSITION);
 		
 		if (dungeonData != null) {
-			ScenePointEntry entry = GameData.getScenePointEntryById(prevScene, dungeonData.getId());
+			ScenePointEntry entry = GameData.getScenePointEntryById(prevScene, player.getScene().getPrevScenePoint());
 			
 			if (entry != null) {
 				prevPos.set(entry.getPointData().getTranPos());