Title

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/State.java

@@ -62,6 +62,7 @@ public enum State {
                     .put(JoinGamePacket.class, 0x23)
                     .put(SpawnPositionPacket.class, 0x46)
                     .put(TimeUpdatePacket.class, 0x47)
+                    .put(TitlePacket.class, 0x48)
                     .put(PlayerAbilitiesPacket.class, 0x2C)
                     .put(PlayerPositionAndLookPacket.class, 0x2F)
                     .build()

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/TitlePacket.java

@@ -0,0 +1,109 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-24
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.RequiredArgsConstructor;
+import lombok.Setter;
+import lombok.ToString;
+import mc.core.network.NetStream;
+import mc.core.network.SCPacket;
+import mc.core.network.proto_1_12_2.serializers.TextSerializer;
+import mc.core.text.Text;
+
+@RequiredArgsConstructor
+@Setter
+@ToString
+public class TitlePacket implements SCPacket {
+    private static final int TICKS_PER_SEC = 20,
+                             MIN_MS = (1000 / TICKS_PER_SEC);
+    public static final int SET_TITLE = 0,
+                            SET_SUBTITLE = 1,
+                            SET_ACTION_BAR = 2,
+                            SET_DISPLAY_TIME = 3,
+                            HIDE = 4,
+                            RESET = 5;
+
+    private final int action;
+    private Text text = null;
+    private Integer fadeInTime = null;
+    private Integer stayTime = null;
+    private Integer fadeOutTime = null;
+
+    public TitlePacket(int action, Object... values) {
+        if (values.length == 0 && (action != HIDE && action != RESET)) {
+            this.action = HIDE;
+            return;
+        }
+
+        this.action = action;
+
+        switch (this.action) {
+            case SET_TITLE:
+            case SET_SUBTITLE:
+            case SET_ACTION_BAR:
+                if (values[0] == null) {
+                    this.text = Text.of();
+                } else if (values[0] instanceof Text) {
+                    this.text = (Text) values[0];
+                } else {
+                    this.text = Text.of(values[0].toString());
+                }
+                break;
+            case SET_DISPLAY_TIME:
+                if (values.length < 3) {
+                    this.fadeInTime = 0;
+                    this.stayTime = 0;
+                    this.fadeOutTime = 0;
+                } else {
+                    if (values[0] instanceof Integer) {
+                        if (((Integer) values[0]) < MIN_MS) {
+                            this.fadeInTime = 1;
+                        } else {
+                            this.fadeInTime = ((Integer) values[0]) / MIN_MS;
+                        }
+                    } else {
+                        this.fadeInTime = 0;
+                    }
+
+                    if (values[1] instanceof Integer) {
+                        if (((Integer) values[1]) < MIN_MS) {
+                            this.stayTime = 1;
+                        } else {
+                            this.stayTime = ((Integer) values[1]) / MIN_MS;
+                        }
+                    } else {
+                        this.stayTime = 0;
+                    }
+
+                    if (values[2] instanceof Integer) {
+                        if (((Integer) values[2]) < MIN_MS) {
+                            this.fadeOutTime = 1;
+                        } else {
+                            this.fadeOutTime = ((Integer) values[2]) / MIN_MS;
+                        }
+                    } else {
+                        this.fadeOutTime = 0;
+                    }
+                }
+        }
+    }
+
+    @Override
+    public void writeSelf(NetStream netStream) {
+        netStream.writeVarInt(this.action);
+
+        switch (this.action) {
+            case SET_TITLE:
+            case SET_SUBTITLE:
+            case SET_ACTION_BAR:
+                netStream.writeString(TextSerializer.serialize(this.text).toString());
+                break;
+            case SET_DISPLAY_TIME:
+                netStream.writeInt(this.fadeInTime);
+                netStream.writeInt(this.stayTime);
+                netStream.writeInt(this.fadeOutTime);
+        }
+    }
+}