Purpur/patches/server/0118-Add-EntityTeleportHinderedEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Mariell Hoversholm <proximyst@proximyst.com>
Date: Sat, 9 Jan 2021 15:27:46 +0100
Subject: [PATCH] Add EntityTeleportHinderedEvent

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.

diff --git a/src/main/java/net/minecraft/world/level/block/EndGatewayBlock.java b/src/main/java/net/minecraft/world/level/block/EndGatewayBlock.java
index af46f2885ead1e3ec1734504d8ba134c886e04fb..47ee0538c8ea94136b2416c324c8a264e54d2c09 100644
--- a/src/main/java/net/minecraft/world/level/block/EndGatewayBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/EndGatewayBlock.java
@@ -104,6 +104,13 @@ public class EndGatewayBlock extends BaseEntityBlock implements Portal {
                 TheEndGatewayBlockEntity tileentityendgateway = (TheEndGatewayBlockEntity) tileentity;
 
                 if (!tileentityendgateway.isCoolingDown()) {
+                    // Purpur start
+                    if (world.purpurConfig.imposeTeleportRestrictionsOnGateways && (entity.isVehicle() || entity.isPassenger())) {
+                        if (!new org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent(entity.getBukkitEntity(), entity.isPassenger() ? org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent.Reason.IS_PASSENGER : org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent.Reason.IS_VEHICLE, PlayerTeleportEvent.TeleportCause.END_GATEWAY).callEvent()) {
+                            return;
+                        }
+                    }
+                    // Purpur end
                     entity.setAsInsidePortal(this, pos);
                     TheEndGatewayBlockEntity.triggerCooldown(world, pos, state, tileentityendgateway);
                 }
diff --git a/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java b/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
index 8cb4142562db0be1f1a7d961ec5a10d4abf31692..84ecb012cb0a47e47799dc73c7fadc75f462f47a 100644
--- a/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
@@ -70,6 +70,13 @@ public class EndPortalBlock extends BaseEntityBlock implements Portal {
     protected void entityInside(BlockState state, Level world, BlockPos pos, Entity entity) {
         if (!new io.papermc.paper.event.entity.EntityInsideBlockEvent(entity.getBukkitEntity(), org.bukkit.craftbukkit.block.CraftBlock.at(world, pos)).callEvent()) { return; } // Paper - Add EntityInsideBlockEvent
         if (entity.canUsePortal(false)) {
+            // Purpur start
+            if (world.purpurConfig.imposeTeleportRestrictionsOnEndPortals && (entity.isVehicle() || entity.isPassenger())) {
+                if (!new org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent(entity.getBukkitEntity(), entity.isPassenger() ? org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent.Reason.IS_PASSENGER : org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent.Reason.IS_VEHICLE, PlayerTeleportEvent.TeleportCause.END_PORTAL).callEvent()) {
+                    return;
+                }
+            }
+            // Purpur end
             // CraftBukkit start - Entity in portal
             EntityPortalEnterEvent event = new EntityPortalEnterEvent(entity.getBukkitEntity(), new org.bukkit.Location(world.getWorld(), pos.getX(), pos.getY(), pos.getZ()), org.bukkit.PortalType.ENDER); // Paper - add portal type
             world.getCraftServer().getPluginManager().callEvent(event);
diff --git a/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java b/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java
index 3e9642e5236d9a1cc8e8f3b375d76810f4bc7c6c..5169cba4c43d80ce3597c57bf7d40bd0148ec8a0 100644
--- a/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java
@@ -117,6 +117,13 @@ public class NetherPortalBlock extends Block implements Portal {
     protected void entityInside(BlockState state, Level world, BlockPos pos, Entity entity) {
         if (!new io.papermc.paper.event.entity.EntityInsideBlockEvent(entity.getBukkitEntity(), org.bukkit.craftbukkit.block.CraftBlock.at(world, pos)).callEvent()) { return; } // Paper - Add EntityInsideBlockEvent
         if (entity.canUsePortal(false)) {
+            // Purpur start
+            if (world.purpurConfig.imposeTeleportRestrictionsOnNetherPortals && (entity.isVehicle() || entity.isPassenger())) {
+                if (!new org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent(entity.getBukkitEntity(), entity.isPassenger() ? org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent.Reason.IS_PASSENGER : org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent.Reason.IS_VEHICLE, org.bukkit.event.player.PlayerTeleportEvent.TeleportCause.NETHER_PORTAL).callEvent()) {
+                    return;
+                }
+            }
+            // Purpur end
             // CraftBukkit start - Entity in portal
             EntityPortalEnterEvent event = new EntityPortalEnterEvent(entity.getBukkitEntity(), new org.bukkit.Location(world.getWorld(), pos.getX(), pos.getY(), pos.getZ()), org.bukkit.PortalType.NETHER); // Paper - add portal type
             world.getCraftServer().getPluginManager().callEvent(event);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index c105d0cce462df46e106eb502355225b83be32b7..51772356a3c64da7b29fa204ffec03a70cd4406a 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -246,6 +246,7 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
         boolean ignorePassengers = flagSet.contains(io.papermc.paper.entity.TeleportFlag.EntityState.RETAIN_PASSENGERS);
         // Don't allow teleporting between worlds while keeping passengers
         if (flagSet.contains(io.papermc.paper.entity.TeleportFlag.EntityState.RETAIN_PASSENGERS) && this.entity.isVehicle() && location.getWorld() != this.getWorld()) {
+            if (!new org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent(entity.getBukkitEntity(), org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent.Reason.IS_VEHICLE, cause).callEvent()) // Purpur
             return false;
         }
 
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 16671636da1b6da62a0bdf0daab745fcd89143b7..ea8b1f01b2dd626c422649488c1e605a8054dbf2 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1449,6 +1449,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         // Paper start - Teleport passenger API
         // Don't allow teleporting between worlds while keeping passengers
         if (ignorePassengers && entity.isVehicle() && location.getWorld() != this.getWorld()) {
+            if (!new org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent(entity.getBukkitEntity(), org.purpurmc.purpur.event.entity.EntityTeleportHinderedEvent.Reason.IS_VEHICLE, cause).callEvent()) // Purpur start
             return false;
         }
 
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index a71a380f20dad2f43183d128e7a487420248a671..07bbe52a858fa3f0cc9c9de709bf2ef013ac33f5 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -125,6 +125,9 @@ public class PurpurWorldConfig {
     public boolean fireballsBypassMobGriefing = false;
     public boolean projectilesBypassMobGriefing = false;
     public boolean noteBlockIgnoreAbove = false;
+    public boolean imposeTeleportRestrictionsOnGateways = false;
+    public boolean imposeTeleportRestrictionsOnNetherPortals = false;
+    public boolean imposeTeleportRestrictionsOnEndPortals = false;
     private void miscGameplayMechanicsSettings() {
         useBetterMending = getBoolean("gameplay-mechanics.use-better-mending", useBetterMending);
         boatEjectPlayersOnLand = getBoolean("gameplay-mechanics.boat.eject-players-on-land", boatEjectPlayersOnLand);
@@ -140,6 +143,10 @@ public class PurpurWorldConfig {
         fireballsBypassMobGriefing = getBoolean("gameplay-mechanics.fireballs-bypass-mob-griefing", fireballsBypassMobGriefing);
         projectilesBypassMobGriefing = getBoolean("gameplay-mechanics.projectiles-bypass-mob-griefing", projectilesBypassMobGriefing);
         noteBlockIgnoreAbove = getBoolean("gameplay-mechanics.note-block-ignore-above", noteBlockIgnoreAbove);
+        imposeTeleportRestrictionsOnGateways = getBoolean("gameplay-mechanics.impose-teleport-restrictions-on-gateways", imposeTeleportRestrictionsOnGateways);
+        imposeTeleportRestrictionsOnNetherPortals = getBoolean("gameplay-mechanics.impose-teleport-restrictions-on-nether-portals", imposeTeleportRestrictionsOnNetherPortals);
+        imposeTeleportRestrictionsOnEndPortals = getBoolean("gameplay-mechanics.impose-teleport-restrictions-on-end-portals", imposeTeleportRestrictionsOnEndPortals);
+
     }
 
     public int daytimeTicks = 12000;