bossbar api

2025-09-17 11:24:56 -04:00 · 2021-10-30 16:46:55 +02:00 · 2021-10-30 16:46:55 +02:00 · e9287bbb44
commit e9287bbb44
parent c148102a7a
22 changed files with 410 additions and 21 deletions
--- a/src/main/java/de/bixilon/minosoft/data/bossbar/Bossbar.kt
+++ b/src/main/java/de/bixilon/minosoft/data/bossbar/Bossbar.kt
@ -0,0 +1,26 @@
+/*
+ * Minosoft
+ * Copyright (C) 2021 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.data.bossbar
+
+import de.bixilon.minosoft.data.text.ChatComponent
+
+data class Bossbar(
+    var title: ChatComponent = ChatComponent.EMPTY,
+    var value: Float = 0.0f,
+    var color: BossbarColors = BossbarColors.PINK,
+    var notches: BossbarNotches = BossbarNotches.NO_NOTCHES,
+    var shouldDarkenSky: Boolean = false,
+    var dragonBar: Boolean = false,
+    var fog: Boolean = false,
+)
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarColors.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarColors.kt
@ -10,7 +10,7 @@
 *
 * This software is not affiliated with Mojang AB, the original developer of Minecraft.
 */
-package de.bixilon.minosoft.protocol.packets.s2c.play.bossbar
+package de.bixilon.minosoft.data.bossbar

 import de.bixilon.minosoft.util.KUtil
 import de.bixilon.minosoft.util.enum.ValuesEnum
--- a/src/main/java/de/bixilon/minosoft/data/bossbar/BossbarManager.kt
+++ b/src/main/java/de/bixilon/minosoft/data/bossbar/BossbarManager.kt
@ -0,0 +1,21 @@
+/*
+ * Minosoft
+ * Copyright (C) 2021 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.data.bossbar
+
+import de.bixilon.minosoft.util.KUtil.synchronizedMapOf
+import java.util.*
+
+class BossbarManager {
+    val bossbars: MutableMap<UUID, Bossbar> = synchronizedMapOf()
+}
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarNotches.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarNotches.kt
@ -10,7 +10,7 @@
 *
 * This software is not affiliated with Mojang AB, the original developer of Minecraft.
 */
-package de.bixilon.minosoft.protocol.packets.s2c.play.bossbar
+package de.bixilon.minosoft.data.bossbar

 import de.bixilon.minosoft.util.KUtil
 import de.bixilon.minosoft.util.enum.ValuesEnum
--- a/src/main/java/de/bixilon/minosoft/data/registries/recipes/Recipes.java
+++ b/src/main/java/de/bixilon/minosoft/data/registries/recipes/Recipes.java
@ -20,6 +20,7 @@ import de.bixilon.minosoft.data.registries.ResourceLocation;
 import java.util.Arrays;
 import java.util.HashSet;

+@Deprecated
 public class Recipes {
    private final HashSet<Recipe> recipeList = new HashSet<>();
    private final HashBiMap<Integer, Recipe> recipeIdMap = HashBiMap.create(); // ids for version <= VERSION_1_12_2
--- a/src/main/java/de/bixilon/minosoft/data/scoreboard/ScoreboardManager.kt
+++ b/src/main/java/de/bixilon/minosoft/data/scoreboard/ScoreboardManager.kt
@ -12,7 +12,9 @@
 */
 package de.bixilon.minosoft.data.scoreboard

+import de.bixilon.minosoft.util.KUtil.synchronizedMapOf
+
 class ScoreboardManager {
-    val teams: MutableMap<String, Team> = mutableMapOf()
-    val objectives: MutableMap<String, ScoreboardObjective> = mutableMapOf()
+    val teams: MutableMap<String, Team> = synchronizedMapOf()
+    val objectives: MutableMap<String, ScoreboardObjective> = synchronizedMapOf()
 }
--- a/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarAddEvent.kt
+++ b/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarAddEvent.kt
@ -0,0 +1,25 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+package de.bixilon.minosoft.modding.event.events.bossbar
+
+import de.bixilon.minosoft.data.bossbar.Bossbar
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
+import java.util.*
+
+class BossbarAddEvent(
+    connection: PlayConnection,
+    initiator: EventInitiators,
+    uuid: UUID,
+    bossbar: Bossbar,
+) : BossbarEvent(connection, initiator, uuid, bossbar)
--- a/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarEvent.kt
+++ b/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarEvent.kt
@ -0,0 +1,27 @@
+/*
+ * Minosoft
+ * Copyright (C) 2021 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.modding.event.events.bossbar
+
+import de.bixilon.minosoft.data.bossbar.Bossbar
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.modding.event.events.connection.play.PlayConnectionEvent
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
+import java.util.*
+
+abstract class BossbarEvent(
+    connection: PlayConnection,
+    initiator: EventInitiators,
+    val uuid: UUID,
+    val bossbar: Bossbar,
+) : PlayConnectionEvent(connection, initiator)
--- a/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarFlagsSetEvent.kt
+++ b/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarFlagsSetEvent.kt
@ -0,0 +1,25 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+package de.bixilon.minosoft.modding.event.events.bossbar
+
+import de.bixilon.minosoft.data.bossbar.Bossbar
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
+import java.util.*
+
+class BossbarFlagsSetEvent(
+    connection: PlayConnection,
+    initiator: EventInitiators,
+    uuid: UUID,
+    bossbar: Bossbar,
+) : BossbarEvent(connection, initiator, uuid, bossbar)
--- a/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarRemoveEvent.kt
+++ b/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarRemoveEvent.kt
@ -0,0 +1,25 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+package de.bixilon.minosoft.modding.event.events.bossbar
+
+import de.bixilon.minosoft.data.bossbar.Bossbar
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
+import java.util.*
+
+class BossbarRemoveEvent(
+    connection: PlayConnection,
+    initiator: EventInitiators,
+    uuid: UUID,
+    bossbar: Bossbar,
+) : BossbarEvent(connection, initiator, uuid, bossbar)
--- a/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarStyleSetEvent.kt
+++ b/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarStyleSetEvent.kt
@ -0,0 +1,25 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+package de.bixilon.minosoft.modding.event.events.bossbar
+
+import de.bixilon.minosoft.data.bossbar.Bossbar
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
+import java.util.*
+
+class BossbarStyleSetEvent(
+    connection: PlayConnection,
+    initiator: EventInitiators,
+    uuid: UUID,
+    bossbar: Bossbar,
+) : BossbarEvent(connection, initiator, uuid, bossbar)
--- a/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarTitleSetEvent.kt
+++ b/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarTitleSetEvent.kt
@ -0,0 +1,25 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+package de.bixilon.minosoft.modding.event.events.bossbar
+
+import de.bixilon.minosoft.data.bossbar.Bossbar
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
+import java.util.*
+
+class BossbarTitleSetEvent(
+    connection: PlayConnection,
+    initiator: EventInitiators,
+    uuid: UUID,
+    bossbar: Bossbar,
+) : BossbarEvent(connection, initiator, uuid, bossbar)
--- a/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarValueSetEvent.kt
+++ b/src/main/java/de/bixilon/minosoft/modding/event/events/bossbar/BossbarValueSetEvent.kt
@ -0,0 +1,25 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+package de.bixilon.minosoft.modding.event.events.bossbar
+
+import de.bixilon.minosoft.data.bossbar.Bossbar
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
+import java.util.*
+
+class BossbarValueSetEvent(
+    connection: PlayConnection,
+    initiator: EventInitiators,
+    uuid: UUID,
+    bossbar: Bossbar,
+) : BossbarEvent(connection, initiator, uuid, bossbar)
--- a/src/main/java/de/bixilon/minosoft/protocol/network/connection/play/PlayConnection.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/network/connection/play/PlayConnection.kt
@ -17,6 +17,7 @@ import de.bixilon.minosoft.Minosoft
 import de.bixilon.minosoft.data.ChatTextPositions
 import de.bixilon.minosoft.data.accounts.Account
 import de.bixilon.minosoft.data.assets.MultiAssetsManager
+import de.bixilon.minosoft.data.bossbar.BossbarManager
 import de.bixilon.minosoft.data.commands.CommandRootNode
 import de.bixilon.minosoft.data.physics.CollisionDetector
 import de.bixilon.minosoft.data.player.LocalPlayerEntity
@ -66,11 +67,12 @@ class PlayConnection(
    val account: Account,
    val version: Version,
 ) : Connection() {
+    val registries = Registries()
    val recipes = Recipes()
    val world = World(this)
    val tabList = TabList()
    val scoreboardManager = ScoreboardManager()
-    val registries = Registries()
+    val bossbarManager = BossbarManager()

    @Deprecated(message = "PacketSender is deprecated")
    val sender = PacketSender(this)
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarAddS2CP.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarAddS2CP.kt
@ -13,8 +13,15 @@

 package de.bixilon.minosoft.protocol.packets.s2c.play.bossbar

+import de.bixilon.minosoft.data.bossbar.Bossbar
+import de.bixilon.minosoft.data.bossbar.BossbarColors
+import de.bixilon.minosoft.data.bossbar.BossbarNotches
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.modding.event.events.bossbar.BossbarAddEvent
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
 import de.bixilon.minosoft.protocol.packets.s2c.PlayS2CPacket
 import de.bixilon.minosoft.protocol.protocol.InByteBuffer
+import de.bixilon.minosoft.util.BitByte.isBitMask
 import de.bixilon.minosoft.util.logging.Log
 import de.bixilon.minosoft.util.logging.LogLevels
 import de.bixilon.minosoft.util.logging.LogMessageType
@ -24,13 +31,43 @@ class BossbarAddS2CP(
    val uuid: UUID,
    buffer: InByteBuffer,
 ) : PlayS2CPacket() {
-    val name = buffer.readChatComponent()
-    val health = buffer.readFloat()
+    val title = buffer.readChatComponent()
+    val value = buffer.readFloat()
    val color = BossbarColors[buffer.readVarInt()]
    val notches = BossbarNotches[buffer.readVarInt()]
-    val flags = buffer.readUnsignedByte() // ToDo
+    val shouldDarkenSky: Boolean
+    val dragonBar: Boolean
+    val fog: Boolean
+
+    init {
+        val flags = buffer.readUnsignedByte()
+        shouldDarkenSky = flags.isBitMask(BossbarFlags.SHOULD_DARKEN_SKY_MASK)
+        dragonBar = flags.isBitMask(BossbarFlags.DRAGON_BAR_MASK)
+        fog = flags.isBitMask(BossbarFlags.FOG_MASK)
+    }
+
+    override fun check(connection: PlayConnection) {
+        check(value in 0.0f..1.0f) { "Value of of bounds!" }
+    }
+
+    override fun handle(connection: PlayConnection) {
+        val bossbar = Bossbar(
+            title = title,
+            value = value,
+            color = color,
+            notches = notches,
+            shouldDarkenSky = shouldDarkenSky,
+            dragonBar = dragonBar,
+            fog = fog,
+        )
+
+        // ToDo: Check if bossbar is already present
+        connection.bossbarManager.bossbars[uuid] = bossbar
+
+        connection.fireEvent(BossbarAddEvent(connection, EventInitiators.SERVER, uuid, bossbar))
+    }

    override fun log() {
-        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar add (uuid=$uuid, name=\"$name\", health=$health, color=$color, notches=$notches, flags=$flags)" }
+        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar add (uuid=$uuid, title=\"$title\", health=$value, color=$color, notches=$notches, shouldDarkenSky=$shouldDarkenSky, dragonBar=$dragonBar, fog=$fog)" }
    }
 }
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarFlagSetS2CP.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarFlagSetS2CP.kt
@ -13,8 +13,12 @@

 package de.bixilon.minosoft.protocol.packets.s2c.play.bossbar

+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.modding.event.events.bossbar.BossbarFlagsSetEvent
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
 import de.bixilon.minosoft.protocol.packets.s2c.PlayS2CPacket
 import de.bixilon.minosoft.protocol.protocol.InByteBuffer
+import de.bixilon.minosoft.util.BitByte.isBitMask
 import de.bixilon.minosoft.util.logging.Log
 import de.bixilon.minosoft.util.logging.LogLevels
 import de.bixilon.minosoft.util.logging.LogMessageType
@ -24,9 +28,42 @@ class BossbarFlagSetS2CP(
    val uuid: UUID,
    buffer: InByteBuffer,
 ) : PlayS2CPacket() {
-    val flags = buffer.readUnsignedByte()
+    val shouldDarkenSky: Boolean
+    val dragonBar: Boolean
+    val fog: Boolean
+
+    init {
+        val flags = buffer.readUnsignedByte()
+        shouldDarkenSky = flags.isBitMask(BossbarFlags.SHOULD_DARKEN_SKY_MASK)
+        dragonBar = flags.isBitMask(BossbarFlags.DRAGON_BAR_MASK)
+        fog = flags.isBitMask(BossbarFlags.FOG_MASK)
+    }
+
+    override fun handle(connection: PlayConnection) {
+        val bossbar = connection.bossbarManager.bossbars[uuid] ?: return
+
+        var changes = 0
+
+        if (bossbar.shouldDarkenSky != shouldDarkenSky) {
+            bossbar.shouldDarkenSky = shouldDarkenSky
+            changes++
+        }
+        if (bossbar.dragonBar != dragonBar) {
+            bossbar.dragonBar = dragonBar
+            changes++
+        }
+        if (bossbar.fog != fog) {
+            bossbar.fog = fog
+            changes++
+        }
+        if (changes == 0) {
+            return
+        }
+
+        connection.fireEvent(BossbarFlagsSetEvent(connection, EventInitiators.SERVER, uuid, bossbar))
+    }

    override fun log() {
-        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar flags set (uuid=$uuid, flags=$flags)" }
+        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar flags set (uuid=$uuid, shouldDarkenSky=$shouldDarkenSky, dragonBar=$dragonBar, fog=$fog)" }
    }
 }
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarFlags.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarFlags.kt
@ -0,0 +1,20 @@
+/*
+ * Minosoft
+ * Copyright (C) 2021 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.protocol.packets.s2c.play.bossbar
+
+object BossbarFlags {
+    const val SHOULD_DARKEN_SKY_MASK = 0x01
+    const val DRAGON_BAR_MASK = 0x02
+    const val FOG_MASK = 0x04
+}
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarRemoveS2CP.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarRemoveS2CP.kt
@ -13,6 +13,9 @@

 package de.bixilon.minosoft.protocol.packets.s2c.play.bossbar

+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.modding.event.events.bossbar.BossbarRemoveEvent
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
 import de.bixilon.minosoft.protocol.packets.s2c.PlayS2CPacket
 import de.bixilon.minosoft.util.logging.Log
 import de.bixilon.minosoft.util.logging.LogLevels
@ -23,6 +26,11 @@ class BossbarRemoveS2CP(
    val uuid: UUID,
 ) : PlayS2CPacket() {

+    override fun handle(connection: PlayConnection) {
+        val bossbar = connection.bossbarManager.bossbars.remove(uuid) ?: return
+        connection.fireEvent(BossbarRemoveEvent(connection, EventInitiators.SERVER, uuid, bossbar))
+    }
+
    override fun log() {
        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar remove (uuid=$uuid)" }
    }
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarS2CPF.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarS2CPF.kt
@ -25,8 +25,8 @@ object BossbarS2CPF {
        return when (BossBarActions[buffer.readVarInt()]) {
            BossBarActions.ADD -> BossbarAddS2CP(uuid, buffer)
            BossBarActions.REMOVE -> BossbarRemoveS2CP(uuid)
-            BossBarActions.SET_HEALTH -> BossbarHealthSetS2CP(uuid, buffer)
-            BossBarActions.SET_NAME -> BossbarNameSetS2CP(uuid, buffer)
+            BossBarActions.SET_VALUE -> BossbarValueSetS2CP(uuid, buffer)
+            BossBarActions.SET_TITLE -> BossbarTitleSetS2CP(uuid, buffer)
            BossBarActions.SET_STYLE -> BossbarStyleSetS2CP(uuid, buffer)
            BossBarActions.SET_FLAGS -> BossbarFlagSetS2CP(uuid, buffer)
        }
@ -35,8 +35,8 @@ object BossbarS2CPF {
    enum class BossBarActions {
        ADD,
        REMOVE,
-        SET_HEALTH,
-        SET_NAME,
+        SET_VALUE,
+        SET_TITLE,
        SET_STYLE,
        SET_FLAGS,
        ;
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarStyleSetS2CP.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarStyleSetS2CP.kt
@ -13,6 +13,11 @@

 package de.bixilon.minosoft.protocol.packets.s2c.play.bossbar

+import de.bixilon.minosoft.data.bossbar.BossbarColors
+import de.bixilon.minosoft.data.bossbar.BossbarNotches
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.modding.event.events.bossbar.BossbarStyleSetEvent
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
 import de.bixilon.minosoft.protocol.packets.s2c.PlayS2CPacket
 import de.bixilon.minosoft.protocol.protocol.InByteBuffer
 import de.bixilon.minosoft.util.logging.Log
@ -27,6 +32,26 @@ class BossbarStyleSetS2CP(
    val color = BossbarColors[buffer.readVarInt()]
    val notches = BossbarNotches[buffer.readVarInt()]

+    override fun handle(connection: PlayConnection) {
+        val bossbar = connection.bossbarManager.bossbars[uuid] ?: return
+
+        var changes = 0
+
+        if (bossbar.color != color) {
+            bossbar.color = color
+            changes++
+        }
+        if (bossbar.notches != notches) {
+            bossbar.notches = notches
+            changes++
+        }
+        if (changes == 0) {
+            return
+        }
+
+        connection.fireEvent(BossbarStyleSetEvent(connection, EventInitiators.SERVER, uuid, bossbar))
+    }
+
    override fun log() {
        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar style set (uuid=$uuid, color=$color, notches=$notches)" }
    }
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarTitleSetS2CP.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarTitleSetS2CP.kt
@ -14,6 +14,9 @@
 package de.bixilon.minosoft.protocol.packets.s2c.play.bossbar

 import de.bixilon.minosoft.Minosoft
+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.modding.event.events.bossbar.BossbarTitleSetEvent
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
 import de.bixilon.minosoft.protocol.packets.s2c.PlayS2CPacket
 import de.bixilon.minosoft.protocol.protocol.InByteBuffer
 import de.bixilon.minosoft.util.logging.Log
@ -21,16 +24,28 @@ import de.bixilon.minosoft.util.logging.LogLevels
 import de.bixilon.minosoft.util.logging.LogMessageType
 import java.util.*

-class BossbarNameSetS2CP(
+class BossbarTitleSetS2CP(
    val uuid: UUID,
    buffer: InByteBuffer,
 ) : PlayS2CPacket() {
-    val name = buffer.readChatComponent()
+    val title = buffer.readChatComponent()
+
+    override fun handle(connection: PlayConnection) {
+        val bossbar = connection.bossbarManager.bossbars[uuid] ?: return
+
+        if (bossbar.title == title) {
+            return
+        }
+        bossbar.title = title
+
+        connection.fireEvent(BossbarTitleSetEvent(connection, EventInitiators.SERVER, uuid, bossbar))
+    }

    override fun log() {
        if (Minosoft.config.config.general.reduceProtocolLog) {
+            // servers have sometimes "animated" bossbars
            return
        }
-        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar name set (uuid=$uuid, name=\"$name\")" }
+        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar name set (uuid=$uuid, title=\"$title\")" }
    }
 }
--- a/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarHealthSetS2CP.kt
+++ b/src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/bossbar/BossbarHealthSetS2CP.kt
@ -13,6 +13,9 @@

 package de.bixilon.minosoft.protocol.packets.s2c.play.bossbar

+import de.bixilon.minosoft.modding.event.EventInitiators
+import de.bixilon.minosoft.modding.event.events.bossbar.BossbarValueSetEvent
+import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
 import de.bixilon.minosoft.protocol.packets.s2c.PlayS2CPacket
 import de.bixilon.minosoft.protocol.protocol.InByteBuffer
 import de.bixilon.minosoft.util.logging.Log
@ -20,13 +23,28 @@ import de.bixilon.minosoft.util.logging.LogLevels
 import de.bixilon.minosoft.util.logging.LogMessageType
 import java.util.*

-class BossbarHealthSetS2CP(
+class BossbarValueSetS2CP(
    val uuid: UUID,
    buffer: InByteBuffer,
 ) : PlayS2CPacket() {
-    val health = buffer.readFloat()
+    val value = buffer.readFloat()
+
+    override fun handle(connection: PlayConnection) {
+        val bossbar = connection.bossbarManager.bossbars[uuid] ?: return
+
+        if (bossbar.value == value) {
+            return
+        }
+        bossbar.value = value
+
+        connection.fireEvent(BossbarValueSetEvent(connection, EventInitiators.SERVER, uuid, bossbar))
+    }
+
+    override fun check(connection: PlayConnection) {
+        check(value in 0.0f..1.0f) { "Value of of bounds!" }
+    }

    override fun log() {
-        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar health set (uuid=$uuid, health=$health)" }
+        Log.log(LogMessageType.NETWORK_PACKETS_IN, LogLevels.VERBOSE) { "Bossbar value set (uuid=$uuid, value=$value)" }
    }
 }