From ade50bad5e5d95a9d57fbfb8175e6c5f4fe6a838 Mon Sep 17 00:00:00 2001
From: RubenD96 <rubendoesburg_96@hotmail.com>
Date: Thu, 22 Apr 2021 22:03:59 +0200
Subject: [PATCH] Chase functionality (/c name) to warp to the exact location
 of the target

---
 src/main/java/client/MapleCharacter.java               | 10 +++++++++-
 .../net/server/channel/handlers/ChangeMapHandler.java  |  9 ++++++++-
 src/main/java/tools/MaplePacketCreator.java            |  7 ++++++-
 3 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/src/main/java/client/MapleCharacter.java b/src/main/java/client/MapleCharacter.java
index f3fc390ed5..a6c0ab1094 100644
--- a/src/main/java/client/MapleCharacter.java
+++ b/src/main/java/client/MapleCharacter.java
@@ -255,6 +255,7 @@ public class MapleCharacter extends AbstractMapleCharacterObject {
     private long lastExpGainTime;
     private boolean pendingNameChange; //only used to change name on logout, not to be relied upon elsewhere
     private long loginTime;
+    private boolean chasing = false;
     
     private MapleCharacter() {
         super.setListener(new AbstractCharacterListener() {
@@ -11323,5 +11324,12 @@ public class MapleCharacter extends AbstractMapleCharacterObject {
     public int getLanguage() {
         return getClient().getLanguage();
     }
-    
+
+    public boolean isChasing() {
+        return chasing;
+    }
+
+    public void setChasing(boolean chasing) {
+        this.chasing = chasing;
+    }
 }
diff --git a/src/main/java/net/server/channel/handlers/ChangeMapHandler.java b/src/main/java/net/server/channel/handlers/ChangeMapHandler.java
index 2e89f9906f..5ea0701d62 100644
--- a/src/main/java/net/server/channel/handlers/ChangeMapHandler.java
+++ b/src/main/java/net/server/channel/handlers/ChangeMapHandler.java
@@ -33,6 +33,7 @@ import tools.FilePrinter;
 import tools.MaplePacketCreator;
 import tools.data.input.SeekableLittleEndianAccessor;
 
+import java.awt.*;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.Calendar;
@@ -79,7 +80,13 @@ public final class ChangeMapHandler extends AbstractMaplePacketHandler {
                 String startwp = slea.readMapleAsciiString();
                 MaplePortal portal = chr.getMap().getPortal(startwp);
                 slea.readByte();
-                boolean wheel = slea.readShort() > 0;
+                boolean wheel = slea.readByte() > 0;
+
+                boolean chasing = slea.readByte() == 1 && chr.isGM();
+                if (chasing) {
+                    chr.setChasing(true);
+                    chr.setPosition(new Point(slea.readInt(), slea.readInt()));
+                }
 
                 if (targetid != -1) {
                     if (!chr.isAlive()) {
diff --git a/src/main/java/tools/MaplePacketCreator.java b/src/main/java/tools/MaplePacketCreator.java
index aa65dd57b4..e4aa062ea4 100644
--- a/src/main/java/tools/MaplePacketCreator.java
+++ b/src/main/java/tools/MaplePacketCreator.java
@@ -1037,7 +1037,12 @@ public class MaplePacketCreator {
                 mplew.writeInt(to.getId());
                 mplew.write(spawnPoint);
                 mplew.writeShort(chr.getHp());
-                mplew.writeBool(false);
+                mplew.writeBool(chr.isChasing());
+                if (chr.isChasing()) {
+                        chr.setChasing(false);
+                        mplew.writeInt(chr.getPosition().x);
+                        mplew.writeInt(chr.getPosition().y);
+                }
                 mplew.writeLong(getTime(Server.getInstance().getCurrentTime()));
                 return mplew.getPacket();
         }