From 682ac8f9d317ba3131463ed5212c244c2175d7ba Mon Sep 17 00:00:00 2001
From: dragon-jpg <kwan7350@gmail.com>
Date: Fri, 7 Feb 2025 15:20:38 +0800
Subject: [PATCH] event notifier

---
 .../modules/impl/misc/EventNotifier.kt        | 62 +++++++++++++++++++
 .../sakura/managers/impl/ModuleManager.kt     |  1 +
 .../resources/assets/sakura/lang/en_us.lang   |  4 ++
 .../resources/assets/sakura/lang/zh_cn.lang   |  4 ++
 4 files changed, 71 insertions(+)
 create mode 100644 src/main/kotlin/dev/exceptionteam/sakura/features/modules/impl/misc/EventNotifier.kt

diff --git a/src/main/kotlin/dev/exceptionteam/sakura/features/modules/impl/misc/EventNotifier.kt b/src/main/kotlin/dev/exceptionteam/sakura/features/modules/impl/misc/EventNotifier.kt
new file mode 100644
index 0000000..ba092db
--- /dev/null
+++ b/src/main/kotlin/dev/exceptionteam/sakura/features/modules/impl/misc/EventNotifier.kt
@@ -0,0 +1,62 @@
+package dev.exceptionteam.sakura.features.modules.impl.misc
+
+import dev.exceptionteam.sakura.events.NonNullContext
+import dev.exceptionteam.sakura.events.impl.PacketEvents
+import dev.exceptionteam.sakura.events.nonNullListener
+import dev.exceptionteam.sakura.features.modules.Category
+import dev.exceptionteam.sakura.features.modules.Module
+import dev.exceptionteam.sakura.features.modules.impl.client.Language
+import dev.exceptionteam.sakura.utils.ingame.ChatUtils
+import net.minecraft.client.multiplayer.PlayerInfo
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket
+
+object EventNotifier: Module(
+    name = "event-notifier",
+    category = Category.MISC
+) {
+    private val playerJoin by setting("player-join", true)
+    private val playerLeave by setting("player-leave", true)
+
+    init {
+        nonNullListener<PacketEvents.Receive> { it ->
+            if (it.packet is ClientboundPlayerInfoUpdatePacket && playerJoin) {
+                val packet: ClientboundPlayerInfoUpdatePacket = it.packet
+                if (!packet.actions().contains(ClientboundPlayerInfoUpdatePacket.Action.ADD_PLAYER)) return@nonNullListener
+                sendJoinMessage(packet)
+            }
+            if (it.packet is ClientboundPlayerInfoRemovePacket && playerLeave) {
+                val packet: ClientboundPlayerInfoRemovePacket = it.packet
+                sendLeaveMessage(packet)
+            }
+        }
+    }
+
+    private fun sendJoinMessage(packet: ClientboundPlayerInfoUpdatePacket) {
+        for (entry in packet.entries()) {
+            val player = entry.profile ?: continue
+            when (Language.language) {
+                Language.Languages.EN_US -> {
+                    ChatUtils.sendMessage("Player ${player.name} joined!")
+                }
+                Language.Languages.ZH_CN -> {
+                    ChatUtils.sendMessage("玩家 ${player.name} 加入了伺服器!")
+                }
+            }
+        }
+    }
+
+    private fun NonNullContext.sendLeaveMessage(packet: ClientboundPlayerInfoRemovePacket) {
+        for (uuid in packet.profileIds) {
+            val leave: PlayerInfo = connection.getPlayerInfo(uuid) ?: continue
+            when (Language.language) {
+                Language.Languages.EN_US -> {
+                    ChatUtils.sendMessage("Player ${leave.profile.name} leaved!")
+                }
+                Language.Languages.ZH_CN -> {
+                    ChatUtils.sendMessage("Player ${leave.profile.name} 离开了伺服器!")
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/dev/exceptionteam/sakura/managers/impl/ModuleManager.kt b/src/main/kotlin/dev/exceptionteam/sakura/managers/impl/ModuleManager.kt
index 2e0ec83..10b32c2 100644
--- a/src/main/kotlin/dev/exceptionteam/sakura/managers/impl/ModuleManager.kt
+++ b/src/main/kotlin/dev/exceptionteam/sakura/managers/impl/ModuleManager.kt
@@ -46,6 +46,7 @@ object ModuleManager {
             PacketEat,
             Disabler,
             FakePlayer,
+            EventNotifier,
 
             // Render
             NameTags,
diff --git a/src/main/resources/assets/sakura/lang/en_us.lang b/src/main/resources/assets/sakura/lang/en_us.lang
index d070854..21043e5 100644
--- a/src/main/resources/assets/sakura/lang/en_us.lang
+++ b/src/main/resources/assets/sakura/lang/en_us.lang
@@ -226,3 +226,7 @@ modules.array-list=Array List
 modules.array-list.text-color=Text Color
 modules.array-list.shadow=Shadow
 modules.array-list.scale=Scale
+
+modules.event-notifier=Event Notifier
+modules.event-notifier.player-join=Player Join
+modules.event-notifier.player-leave=Player Leave
\ No newline at end of file
diff --git a/src/main/resources/assets/sakura/lang/zh_cn.lang b/src/main/resources/assets/sakura/lang/zh_cn.lang
index ef5c3b3..9746ced 100644
--- a/src/main/resources/assets/sakura/lang/zh_cn.lang
+++ b/src/main/resources/assets/sakura/lang/zh_cn.lang
@@ -234,3 +234,7 @@ modules.array-list=功能列表
 modules.array-list.text-color=文字颜色
 modules.array-list.shadow=阴影
 modules.array-list.scale=缩放
+
+modules.event-notifier=事件提醒器
+modules.event-notifier.player-join=玩家加入伺服器
+modules.event-notifier.player-leave=玩家离开伺服器
\ No newline at end of file