From 808710e3140ad790f921b2b312a83607f58a6f4e Mon Sep 17 00:00:00 2001
From: DmitriyMX <dimon550@gmail.com>
Date: Sat, 8 May 2021 21:08:14 +0300
Subject: [PATCH] CCloseWindowPacket

---
 protocol/src/main/java/mc/protocol/State.java |  1 +
 .../packets/client/CCloseWindowPacket.java    | 46 +++++++++++++++++++
 .../packets/server/OpenWindowPacket.java      |  2 +
 3 files changed, 49 insertions(+)
 create mode 100644 protocol/src/main/java/mc/protocol/packets/client/CCloseWindowPacket.java

diff --git a/protocol/src/main/java/mc/protocol/State.java b/protocol/src/main/java/mc/protocol/State.java
index 924bbcc..3032957 100644
--- a/protocol/src/main/java/mc/protocol/State.java
+++ b/protocol/src/main/java/mc/protocol/State.java
@@ -46,6 +46,7 @@ public enum State {
 			Map.of(
 					0x00, TeleportConfirmPacket.class,
 					0x04, ClientSettingsPacket.class,
+					0x08, CCloseWindowPacket.class,
 					0x09, PluginMessagePacket.class,
 					0x0B, PingPacket.class,
 					0x0D, PlayerPositionPacket.class,
diff --git a/protocol/src/main/java/mc/protocol/packets/client/CCloseWindowPacket.java b/protocol/src/main/java/mc/protocol/packets/client/CCloseWindowPacket.java
new file mode 100644
index 0000000..2227b47
--- /dev/null
+++ b/protocol/src/main/java/mc/protocol/packets/client/CCloseWindowPacket.java
@@ -0,0 +1,46 @@
+package mc.protocol.packets.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.io.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.packets.server.OpenWindowPacket;
+
+/**
+ * Close window packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD     | TYPE          | NOTES                     |
+ * |-----------|---------------|---------------------------|
+ * | Window ID | Unsigned Byte | ID окна, которое закрыли. |
+ * </pre>
+ *
+ * <p>
+ *     Vanilla клиент отправляет данный пакет с "Window ID" = 0, при закрытии инвентаря игрока.
+ *     Даже в тех случаях, когда для открытия инвентаря не посылался пакет {@link OpenWindowPacket}
+ * </p>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Close_Window_.28clientbound.29" target="_top">Close Window (serverbound)</a>
+ * @see OpenWindowPacket
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class CCloseWindowPacket implements ClientSidePacket {
+
+	private int windowId;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.windowId = netByteBuf.readUnsignedByte();
+	}
+
+	@Override
+	public void passivate() {
+		this.windowId = 0;
+	}
+}
diff --git a/protocol/src/main/java/mc/protocol/packets/server/OpenWindowPacket.java b/protocol/src/main/java/mc/protocol/packets/server/OpenWindowPacket.java
index f05c059..2c9502a 100644
--- a/protocol/src/main/java/mc/protocol/packets/server/OpenWindowPacket.java
+++ b/protocol/src/main/java/mc/protocol/packets/server/OpenWindowPacket.java
@@ -4,6 +4,7 @@ import lombok.Data;
 import mc.protocol.io.NetByteBuf;
 import mc.protocol.model.text.Text;
 import mc.protocol.packets.ServerSidePacket;
+import mc.protocol.packets.client.CCloseWindowPacket;
 import mc.protocol.serializer.TextSerializer;
 
 /**
@@ -24,6 +25,7 @@ import mc.protocol.serializer.TextSerializer;
  *
  * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Open_Window">Open Window</a>
  * @see <a href="https://wiki.vg/index.php?title=Inventory&oldid=14093">Inventory</a>
+ * @see CCloseWindowPacket
  */
 @Data
 public class OpenWindowPacket implements ServerSidePacket {