Adding packet mode to fastbreak, issue #796

src/main/java/me/zeroeightsix/kami/module/modules/player/Fastbreak.kt

@@ -1,17 +1,53 @@
 package me.zeroeightsix.kami.module.modules.player
 
+import me.zero.alpine.listener.EventHandler
+import me.zero.alpine.listener.Listener
+import me.zero.alpine.listener.EventHook
+import me.zeroeightsix.kami.event.events.PacketEvent
 import me.zeroeightsix.kami.module.Module
+import me.zeroeightsix.kami.setting.Settings
+import net.minecraft.network.play.client.CPacketPlayerDigging
 
 /**
  * @author 086
+ * Updated by Xiaro on 24/06/2018.
  */
 @Module.Info(
         name = "Fastbreak",
         category = Module.Category.PLAYER,
-        description = "Nullifies block hit delay"
+        description = "Breaks block faster"
 )
 class Fastbreak : Module() {
+    private val mode = register(Settings.e<FastBreakMode>("Mode", FastBreakMode.HIT_DELAY))
+    private val sneakTrigger = register(Settings.booleanBuilder("Sneak Trigger").withValue(true).withVisibility { mode.value == FastBreakMode.PACKET}.build())
+
+    private enum class FastBreakMode {
+        HIT_DELAY, PACKET
+    }
+
+    private var isPacketMining = false
+    private var diggingPacket = CPacketPlayerDigging()
+
+    @EventHandler
+    private val sendListener = Listener(EventHook { event: PacketEvent.Send ->
+        if (event.packet !is CPacketPlayerDigging || mode.value != FastBreakMode.PACKET) return@EventHook
+        val packet = event.packet as CPacketPlayerDigging
+
+        if (packet.action == CPacketPlayerDigging.Action.START_DESTROY_BLOCK && !isPacketMining && ((sneakTrigger.value && mc.player.isSneaking) || !sneakTrigger.value)) {
+            isPacketMining = true
+            diggingPacket = packet
+        } else if (packet.action == CPacketPlayerDigging.Action.ABORT_DESTROY_BLOCK && isPacketMining) { /* Cancels aborting packets */
+            event.cancel()
+        }
+    })
+
     override fun onUpdate() {
-        mc.playerController.blockHitDelay = 0
+        if (mode.value == FastBreakMode.HIT_DELAY) {
+            mc.playerController.blockHitDelay = 0
+        } else if (isPacketMining) {
+            val stopDiggingPacket = CPacketPlayerDigging(CPacketPlayerDigging.Action.STOP_DESTROY_BLOCK, diggingPacket.position, diggingPacket.facing)
+            mc.connection!!.sendPacket(stopDiggingPacket) /* Sends a stop digging packet so the blocks will actually be mined after the server side breaking animation */
+            isPacketMining = false
+        }
     }
 }