AntiAFK: Add "helpMend" setting

This setting helps you mend items while being AFK (made thinking about
AFK fishing) by replacing the offhand item with low HP items of the
same type that have the mending enchantment.

Author: Baitinq

src/main/kotlin/com/lambda/client/module/modules/player/InventoryManager.kt

@@ -12,8 +12,11 @@ import com.lambda.client.setting.settings.impl.collection.CollectionSetting
 import com.lambda.client.util.TickTimer
 import com.lambda.client.util.TimeUnit
 import com.lambda.client.util.items.*
+import com.lambda.client.util.text.MessageSendHelper
 import com.lambda.client.util.threads.safeListener
 import net.minecraft.client.gui.inventory.GuiContainer
+import net.minecraft.enchantment.EnchantmentHelper
+import net.minecraft.init.Enchantments
 import net.minecraft.inventory.Slot
 import net.minecraft.item.ItemStack
 import net.minecraftforge.fml.common.gameevent.TickEvent
@@ -43,10 +46,11 @@ object InventoryManager : Module(
     private val fullOnly by setting("Only At Full", false, { autoEject })
     private val pauseMovement by setting("Pause Movement", true)
     private val delay by setting("Delay Ticks", 1, 0..20, 1, unit = " ticks")
+    private val helpMend by setting("Help Mend", false, description = "Helps mending items by replacing the offhand item with low HP items of the same type")
     val ejectList = setting(CollectionSetting("Eject List", defaultEjectList))
 
     enum class State {
-        IDLE, SAVING_ITEM, REFILLING_BUILDING, REFILLING, EJECTING
+        IDLE, SAVING_ITEM, HELPING_MEND, REFILLING_BUILDING, REFILLING, EJECTING
     }
 
     private var currentState = State.IDLE
@@ -78,6 +82,7 @@ object InventoryManager : Module(
 
             when (currentState) {
                 State.SAVING_ITEM -> saveItem()
+                State.HELPING_MEND -> helpMend()
                 State.REFILLING_BUILDING -> refillBuilding()
                 State.REFILLING -> refill()
                 State.EJECTING -> eject()
@@ -91,6 +96,7 @@ object InventoryManager : Module(
     private fun SafeClientEvent.setState() {
         currentState = when {
             saveItemCheck() -> State.SAVING_ITEM
+            helpMendCheck() -> State.HELPING_MEND
             refillBuildingCheck() -> State.REFILLING_BUILDING
             refillCheck() -> State.REFILLING
             ejectCheck() -> State.EJECTING
@@ -111,6 +117,10 @@ object InventoryManager : Module(
         return itemSaver && checkDamage(player.heldItemMainhand)
     }
 
+    private fun SafeClientEvent.helpMendCheck() : Boolean {
+        return helpMend && (player.heldItemOffhand.itemDamage == 0 || EnchantmentHelper.getEnchantmentLevel(Enchantments.MENDING, player.heldItemOffhand) == 0)
+    }
+
     private fun SafeClientEvent.refillBuildingCheck(): Boolean {
         if (!autoRefill || !buildingMode || buildingBlockID == 0) return false
 
@@ -154,6 +164,14 @@ object InventoryManager : Module(
         }
     }
 
+    private fun SafeClientEvent.helpMend() {
+        val chosenItemSlots = player.inventorySlots.filter{it.stack.item.equals(player.heldItemOffhand.item) && EnchantmentHelper.getEnchantmentLevel(Enchantments.MENDING, it.stack) != 0 && it.stack.itemDamage != 0}
+        if (chosenItemSlots.isNotEmpty()) {
+            MessageSendHelper.sendChatMessage("$chatName Switching offhand to another item (Help Mend).")
+            moveToSlot(this@InventoryManager, chosenItemSlots[0], player.offhandSlot)
+        }
+    }
+
     private fun SafeClientEvent.refillBuilding() {
         player.storageSlots.firstID(buildingBlockID)?.let {
             quickMoveSlot(this@InventoryManager, it)