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src/main/java/client/keybind/MapleQuickslotBinding.java

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+package client.keybind;
+
+import tools.data.output.MaplePacketLittleEndianWriter;
+
+import java.util.Arrays;
+
+/**
+ *
+ * @author Shavit
+ */
+public class MapleQuickslotBinding
+{
+    public static final int QUICKSLOT_SIZE = 8;
+
+    public static final byte[] DEFAULT_QUICKSLOTS =
+    {
+            0x2A, 0x52, 0x47, 0x49, 0x1D, 0x53, 0x4F, 0x51
+    };
+
+    private byte[] m_aQuickslotKeyMapped;
+
+    // Initializes quickslot object for the user.
+    // aKeys' length has to be 8.
+    public MapleQuickslotBinding(byte[] aKeys)
+    {
+        if(aKeys.length != QUICKSLOT_SIZE)
+        {
+            throw new IllegalArgumentException(String.format("aKeys' size should be %d", QUICKSLOT_SIZE));
+        }
+
+        this.m_aQuickslotKeyMapped = aKeys.clone();
+    }
+
+    public void Encode(MaplePacketLittleEndianWriter oPacket)
+    {
+        // Quickslots are default.
+        // The client will skip them and call CQuickslotKeyMappedMan::DefaultQuickslotKeyMap.
+        if(Arrays.equals(this.m_aQuickslotKeyMapped, DEFAULT_QUICKSLOTS))
+        {
+            oPacket.writeBool(false);
+
+            return;
+        }
+
+        oPacket.writeBool(true);
+
+        for(byte nKey : this.m_aQuickslotKeyMapped)
+        {
+            // For some reason Nexon sends these as integers, similar to CFuncKeyMappedMan.
+            // However there's no evidence any key can be above 0xFF anyhow.
+            // Regardless, we need to encode an integer to avoid an error 38 crash; as CFuncKeyMapped::m_aQuickslotKeyMapped is int[8].
+            oPacket.writeInt(nKey);
+        }
+    }
+    
+    public byte[] GetKeybindings() {
+        return m_aQuickslotKeyMapped;
+    }
+    
+}