5 files changed, 97 insertions, 8 deletions

diff --git a/src/gui/viewport.cpp b/src/gui/viewport.cpp
index 1407415fd..f4c6c315f 100644
--- a/src/gui/viewport.cpp
+++ b/src/gui/viewport.cpp
@@ -875,3 +875,44 @@ bool Viewport::isPopupMenuVisible()
 {
     return mPopupMenu ? mPopupMenu->isVisible() : false;
 }
+
+void Viewport::moveCameraToActor(int actorId, int x, int y)
+{
+    if (!player_node)
+        return;
+
+    Actor *actor = actorSpriteManager->findBeing(actorId);
+    if (!actor)
+        return;
+    Vector actorPos = actor->getPosition();
+    Vector playerPos = player_node->getPosition();
+    mCameraMode = 1;
+    mCameraRelativeX = actorPos.x - playerPos.x + x;
+    mCameraRelativeY = actorPos.y - playerPos.y + y;
+}
+
+void Viewport::moveCameraToPosition(int x, int y)
+{
+    if (!player_node)
+        return;
+
+    Vector playerPos = player_node->getPosition();
+    mCameraMode = 1;
+
+    mCameraRelativeX = x - playerPos.x;
+    mCameraRelativeY = y - playerPos.y;
+}
+
+void Viewport::moveCameraRelative(int x, int y)
+{
+    mCameraMode = 1;
+    mCameraRelativeX += x;
+    mCameraRelativeY += y;
+}
+
+void Viewport::returnCamera()
+{
+    mCameraMode = 0;
+    mCameraRelativeX = 0;
+    mCameraRelativeY = 0;
+}
diff --git a/src/gui/viewport.h b/src/gui/viewport.h
index b25f51242..0f56e9426 100644
--- a/src/gui/viewport.h
+++ b/src/gui/viewport.h
@@ -250,6 +250,14 @@ class Viewport : public WindowContainer, public gcn::MouseListener,
 
         bool isPopupMenuVisible();
 
+        void moveCameraToActor(int actorId, int x = 0, int y = 0);
+
+        void moveCameraToPosition(int x, int y);
+
+        void moveCameraRelative(int x, int y);
+
+        void returnCamera();
+
     protected:
         friend class ActorSpriteManager;
 
diff --git a/src/net/tmwa/network.cpp b/src/net/tmwa/network.cpp
index 08ba1db10..31329eafb 100644
--- a/src/net/tmwa/network.cpp
+++ b/src/net/tmwa/network.cpp
@@ -83,7 +83,7 @@ short packet_lengths[] =
  -1,  -1,  20,  10,  32,   9,  34,  14,   2,   6,  48,  56,  -1,   4,   5,  10,
 // #0x0200
  26,   0,   0,   0,  18,   0,   0,   0,   0,   0,   0,  19,  10,   0,   0,   0,
-  2,  -1,   8,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+  2,  -1,  16,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
  -1, 122,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
 };
 
diff --git a/src/net/tmwa/npchandler.cpp b/src/net/tmwa/npchandler.cpp
index 5e305070e..c395eb1b8 100644
--- a/src/net/tmwa/npchandler.cpp
+++ b/src/net/tmwa/npchandler.cpp
@@ -25,6 +25,7 @@
 #include "localplayer.h"
 
 #include "gui/npcdialog.h"
+#include "gui/viewport.h"
 
 #include "net/messagein.h"
 #include "net/net.h"
@@ -97,7 +98,7 @@ void NpcHandler::handleMessage(Net::MessageIn &msg)
             break;
 
         case SMSG_NPC_COMMAND:
-            processNpcCommand(msg);
+            processNpcCommand(msg, npcId);
             break;
 
         default:
@@ -239,13 +240,52 @@ int NpcHandler::getNpc(Net::MessageIn &msg, bool haveLength)
     return npcId;
 }
 
-void NpcHandler::processNpcCommand(Net::MessageIn &msg)
+void NpcHandler::processNpcCommand(Net::MessageIn &msg, int npcId)
 {
     const int cmd = msg.readInt16();
-    if (cmd == 0)
-        mRequestLang = true;
-    else
-        logger->log("unknown npc command: %d", cmd);
+    switch (cmd)
+    {
+        case 0:
+            mRequestLang = true;
+            break;
+
+        case 1:
+            if (viewport)
+                viewport->moveCameraToActor(npcId);
+            break;
+
+        case 2:
+            if (viewport)
+            {
+                const int id = msg.readInt32();
+                const int x = msg.readInt16();
+                const int y = msg.readInt16();
+                if (!id)
+                    viewport->moveCameraToPosition(x, y);
+                else
+                    viewport->moveCameraToActor(id, x, y);
+            }
+            break;
+
+        case 3:
+            if (viewport)
+                viewport->returnCamera();
+            break;
+
+        case 4:
+            if (viewport)
+            {
+                msg.readInt32(); // id
+                const int x = msg.readInt16();
+                const int y = msg.readInt16();
+                viewport->moveCameraRelative(x, y);
+            }
+            break;
+
+        default:
+            logger->log("unknown npc command: %d", cmd);
+            break;
+    }
 }
 
 void NpcHandler::processLangReuqest(Net::MessageIn &msg A_UNUSED, int npcId)
diff --git a/src/net/tmwa/npchandler.h b/src/net/tmwa/npchandler.h
index 648b1e5d9..1cfcacb20 100644
--- a/src/net/tmwa/npchandler.h
+++ b/src/net/tmwa/npchandler.h
@@ -66,7 +66,7 @@ class NpcHandler : public MessageHandler, public Ea::NpcHandler
 
         int getNpc(Net::MessageIn &msg, bool haveLength);
 
-        void processNpcCommand(Net::MessageIn &msg);
+        void processNpcCommand(Net::MessageIn &msg, int npcId);
 
         void processLangReuqest(Net::MessageIn &msg, int npcId);