Add config toggle to back command; add last tp to back command

src/main/java/dev/zontreck/essentials/AriasEssentials.java

@@ -79,6 +79,9 @@ public class AriasEssentials {
         if(TeleportActioner.isBlacklistedDimension(event.getContainer().Dimension))
         {
             event.setCanceled(true);
+        } else {
+            if(AEServerConfig.BACK_ALLOWS_LAST_TP.get())
+                BackPositionCaches.Update(event.getContainer().PlayerInst.getUUID(), event.getContainer().world_pos);
         }
     }
 

src/main/java/dev/zontreck/essentials/Messages.java

@@ -72,6 +72,9 @@ public class Messages {
     public static final String RTP_CACHED;
     public static final String NO_BACK;
     public static final String TELEPORT_BACK;
+    public static final String TELEPORT_BACK_DISABLED;
+    public static final String TELEPORT_BACK_LAST;
+    public static final String TELEPORT_BACK_NO_LAST;
 
 
     static{
@@ -155,5 +158,11 @@ public class Messages {
         NO_BACK = ESSENTIALS_PREFIX + "!Dark_Green!Good news! You have not died recently, there is no saved back position";
         TELEPORT_BACK = ESSENTIALS_PREFIX + "!Dark_Purple!You are being taken back to your last death location now.";
 
+        TELEPORT_BACK_DISABLED = ESSENTIALS_PREFIX + "!Dark_Red!You are not an op, and the back command is disabled on this server.";
+
+        TELEPORT_BACK_NO_LAST = ESSENTIALS_PREFIX + "!Dark_Red!You have not teleported recently, nor died. There is nothing to go back to.";
+
+        TELEPORT_BACK_LAST = ESSENTIALS_PREFIX + "!Dark_Purple!You are being taken back to your last death or teleport location.";
+
     }
 }

src/main/java/dev/zontreck/essentials/commands/teleport/BackCommand.java

@@ -2,6 +2,7 @@ package dev.zontreck.essentials.commands.teleport;
 
 import com.mojang.brigadier.CommandDispatcher;
 import dev.zontreck.essentials.Messages;
+import dev.zontreck.essentials.configs.AEServerConfig;
 import dev.zontreck.essentials.util.BackPositionCaches;
 import dev.zontreck.libzontreck.util.ChatHelpers;
 import dev.zontreck.libzontreck.vectors.WorldPosition;
@@ -18,6 +19,13 @@ public class BackCommand
     public static int back(CommandSourceStack ctx)
     {
         try {
+
+            if(!AEServerConfig.ENABLE_BACK.get() && !ctx.hasPermission(ctx.getServer().getOperatorUserPermissionLevel()))
+            {
+                ChatHelpers.broadcastTo(ctx.getPlayer(), ChatHelpers.macro(Messages.TELEPORT_BACK_DISABLED), ctx.getServer());
+                return 0;
+            }
+
             WorldPosition wp = BackPositionCaches.Pop(ctx.getPlayer().getUUID());
 
             ChatHelpers.broadcastTo(ctx.getPlayer(), ChatHelpers.macro(Messages.TELEPORT_BACK), ctx.getServer());

src/main/java/dev/zontreck/essentials/commands/teleport/TeleportContainer.java

@@ -24,6 +24,7 @@ public class TeleportContainer implements Comparable{
     public Vec3 Position;
     public Vec2 Rotation;
     public ServerLevel Dimension;
+    public WorldPosition OldPosition; // Populated in a teleport event
     
     
     public boolean has_expired(){

src/main/java/dev/zontreck/essentials/commands/teleport/TeleportRunnable.java

@@ -4,6 +4,7 @@ package dev.zontreck.essentials.commands.teleport;
 import dev.zontreck.ariaslib.terminal.Task;
 import dev.zontreck.ariaslib.util.DelayedExecutorService;
 import dev.zontreck.essentials.events.TeleportEvent;
+import dev.zontreck.libzontreck.vectors.WorldPosition;
 import net.minecraftforge.common.MinecraftForge;
 
 public class TeleportRunnable extends Task
@@ -17,6 +18,7 @@ public class TeleportRunnable extends Task
 
     @Override
     public void run() {
+        Action.OldPosition = new WorldPosition(Action.PlayerInst);
 
         if(MinecraftForge.EVENT_BUS.post(new TeleportEvent(Action)))
         {

src/main/java/dev/zontreck/essentials/configs/AEServerConfig.java

@@ -28,6 +28,9 @@ public class AEServerConfig {
     public static final ForgeConfigSpec.ConfigValue<List<String>> DIMENSION_BLACKLIST;
     public static final ForgeConfigSpec.ConfigValue<String> BLACKLISTED_DIMENSION_ERROR;
 
+    public static final ForgeConfigSpec.ConfigValue<Boolean> BACK_ALLOWS_LAST_TP;
+    public static final ForgeConfigSpec.ConfigValue<Boolean> ENABLE_BACK;
+
     public static final ForgeConfigSpec.ConfigValue<List<String>> TELEPORT_EFFECTS;
 
 
@@ -61,6 +64,13 @@ public class AEServerConfig {
 
         ));
 
+        BUILDER.push("back");
+        BACK_ALLOWS_LAST_TP = BUILDER.comment("Whether to allow going back to the last teleport location in addition to the last death (If back is enabled for non-op). The history for the back command goes back only to the very last teleport or death").define("allow_last_tp", true);
+
+        ENABLE_BACK = BUILDER.comment("Enable the use of the back command for non-op?").define("enabled", true);
+
+        BUILDER.pop();
+
 
 
         BUILDER.pop();