nothing

src/main/kotlin/cn/rtast/fancybot/commands/misc/MinecraftCommand.kt

@@ -613,6 +613,10 @@ class MCBotCommand : BaseCommand() {
         val action = args.first()
         when (action) {
             "start" -> {
+                if (userClientMap.containsKey(message.sender.userId)) {
+                    message.reply("你有一个正在进行的任务不能开启另外一个任务请先使用`/mcbot cancel`取消任务")
+                    return
+                }
                 val address = args[1]
                 val host = address.split(":").first()
                 val port = address.split(":").last().toInt()

src/main/kotlin/cn/rtast/fancybot/util/mcbot/MCClient.kt

@@ -15,18 +15,29 @@ import org.geysermc.mcprotocollib.network.tcp.TcpClientSession
 import org.geysermc.mcprotocollib.protocol.MinecraftProtocol
 import org.geysermc.mcprotocollib.protocol.data.game.ClientCommand
 import org.geysermc.mcprotocollib.protocol.data.game.ResourcePackStatus
+import org.geysermc.mcprotocollib.protocol.data.game.entity.player.Hand
+import org.geysermc.mcprotocollib.protocol.data.game.entity.player.InteractAction
 import org.geysermc.mcprotocollib.protocol.packet.common.clientbound.ClientboundResourcePackPushPacket
 import org.geysermc.mcprotocollib.protocol.packet.common.serverbound.ServerboundResourcePackPacket
 import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.ClientboundPlayerChatPacket
 import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.ClientboundSystemChatPacket
+import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.ClientboundDamageEventPacket
+import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.ClientboundMoveEntityPosPacket
 import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.player.ClientboundPlayerCombatKillPacket
 import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.player.ClientboundPlayerPositionPacket
 import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.ServerboundChatCommandPacket
 import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.ServerboundChatPacket
 import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.ServerboundClientCommandPacket
 import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.level.ServerboundAcceptTeleportationPacket
+import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.player.ServerboundInteractPacket
+import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.player.ServerboundMovePlayerRotPacket
 import java.time.Instant
 import java.util.BitSet
+import java.util.Timer
+import java.util.TimerTask
+import kotlin.math.pow
+import kotlin.math.sqrt
+import kotlin.random.Random
 
 class MCClient(
     private val serverHost: String,
@@ -35,6 +46,8 @@ class MCClient(
 ) {
     private lateinit var client: TcpClientSession
     private val logger = Logger.getLogger<MCClient>()
+    private val timer = Timer()
+    private val entitiesId = mutableMapOf<Int, Triple<Double, Double, Double>>()
 
     fun createClient(): TcpClientSession {
         val protocol = MinecraftProtocol(botName)
@@ -45,29 +58,86 @@ class MCClient(
     fun runBot(): MCClient {
         client.addListener(object : SessionAdapter() {
             override fun packetReceived(session: Session, packet: Packet) {
-                if (packet is ClientboundResourcePackPushPacket) {
-                    val loadedPacket = ServerboundResourcePackPacket(packet.id, ResourcePackStatus.SUCCESSFULLY_LOADED)
+                when (packet) {
+                    is ClientboundResourcePackPushPacket -> {
+                        val loadedPacket =
+                            ServerboundResourcePackPacket(packet.id, ResourcePackStatus.SUCCESSFULLY_LOADED)
                         session.send(loadedPacket)
                     }
-                if (packet is ClientboundPlayerPositionPacket) {
+
+                    is ClientboundPlayerPositionPacket -> {
                         session.send(ServerboundAcceptTeleportationPacket(packet.teleportId));
                     }
-                if (packet is ClientboundSystemChatPacket) {
+
+                    is ClientboundSystemChatPacket -> {
                         logger.trace("系统 >>> {}", packet.content)
                     }
-                if (packet is ClientboundPlayerChatPacket) {
+
+                    is ClientboundPlayerChatPacket -> {
                         logger.trace("{} >>> {}", packet.name, packet.content)
                     }
-                if (packet is ClientboundPlayerCombatKillPacket) {
-                    logger.info("Bot已死亡自动复活中")
+
+                    is ClientboundPlayerCombatKillPacket -> {
+                        logger.info("Bot: $botName 死亡, 已自动复活")
                         session.send(ServerboundClientCommandPacket(ClientCommand.RESPAWN))
                     }
+
+                    is ClientboundDamageEventPacket -> {
+                        session.send(
+                            ServerboundMovePlayerRotPacket(
+                                true,
+                                Random.nextInt(-90, 90).toFloat(),
+                                Random.nextInt(-90, 90).toFloat()
+                            )
+                        )
+                    }
+
+                    is ClientboundMoveEntityPosPacket -> {
+                        val entityId = packet.entityId
+                        val x = packet.moveX
+                        val y = packet.moveY
+                        val z = packet.moveZ
+                        entitiesId[entityId] = Triple(x, y, z)
+                    }
+                }
             }
         })
         client.connect()
+        timer.scheduleAtFixedRate(object : TimerTask() {
+            override fun run() {
+                if (client.isConnected) {
+                    entitiesId.forEach {
+                        val x = it.value.first
+                        val y = it.value.second
+                        val z = it.value.third
+                        val entityId = it.key
+                        if (isWithinRange(x, y, z)) {
+                            attackEntity(entityId)
+                        } else {
+                            entitiesId.remove(entityId)
+                        }
+                    }
+                }
+            }
+        }, 1000L, 1000L)
         return this
     }
 
+    private fun isWithinRange(x: Double, y: Double, z: Double): Boolean {
+        val playerX = 0.0
+        val playerY = 0.0
+        val playerZ = 0.0
+        val distance = sqrt((x - playerX).pow(2) + (y - playerY).pow(2) + (z - playerZ).pow(2))
+        return distance <= 5
+    }
+
+
+    private fun attackEntity(entityId: Int) {
+        val attackPacket =
+            ServerboundInteractPacket(entityId, InteractAction.ATTACK, Hand.entries.random(), Random.nextBoolean())
+        client.send(attackPacket)
+    }
+
     private fun sendMessage(content: String) =
         client.send(ServerboundChatPacket(content, Instant.now().toEpochMilli(), 0L, null, 0, BitSet()))