Purpur/patches/server/0117-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 11486419dd98a013c7387d3d73f322a95a18c574..b1444e8605282a05c3d030330b92213ad8341fda 100644
--- a/src/main/java/net/minecraft/world/level/block/EndGatewayBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/EndGatewayBlock.java
@@ -98,6 +98,13 @@ 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 cff3e9869340f1ffb7093431cbe1ac5e67792a4e..dfe27fc9b2cbc824e8d2a5fd759409d939bd9c71 100644
--- a/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
@@ -65,6 +65,13 @@ 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) && Shapes.joinIsNotEmpty(Shapes.create(entity.getBoundingBox().move((double) (-pos.getX()), (double) (-pos.getY()), (double) (-pos.getZ()))), state.getShape(world, pos), BooleanOp.AND)) {
+            // Purpur start
+            if (entity.isPassenger() || entity.isVehicle()) {
+                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()));
             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 a530276b0123dee5680d7e09ad3d2f0414909c91..730ef910afa911f264cf842a53281cda845ffac7 100644
--- a/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java
@@ -109,6 +109,13 @@ 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 (entity.isPassenger() || entity.isVehicle()) {
+                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()));
             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 84479dad6078a2a12e6b977185bdbbe7f6b36576..4be205b10229b238039e4221df043e47cba68511 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -245,6 +245,7 @@ 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 745e57d58966dbe60b2301818c23d25eecdb6dc2..33425cdcde10f6446f059b290d4c372debcb9c0b 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1436,6 +1436,7 @@ 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 159a7a7d907fdef1254f64268c7fe1bcee5878df..9f1d4930e08ef5d358e178e26d28f033e0e41d08 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -116,6 +116,7 @@ public class PurpurWorldConfig {
     public boolean disableDropsOnCrammingDeath = false;
     public boolean entitiesPickUpLootBypassMobGriefing = false;
     public boolean fireballsBypassMobGriefing = false;
+    public boolean imposeTeleportRestrictionsOnGateways = false;
     public boolean milkCuresBadOmen = true;
     public boolean noteBlockIgnoreAbove = false;
     public boolean persistentDroppableEntityDisplayNames = true;
@@ -132,6 +133,7 @@ public class PurpurWorldConfig {
         disableDropsOnCrammingDeath = getBoolean("gameplay-mechanics.disable-drops-on-cramming-death", disableDropsOnCrammingDeath);
         entitiesPickUpLootBypassMobGriefing = getBoolean("gameplay-mechanics.entities-pick-up-loot-bypass-mob-griefing", entitiesPickUpLootBypassMobGriefing);
         fireballsBypassMobGriefing = getBoolean("gameplay-mechanics.fireballs-bypass-mob-griefing", fireballsBypassMobGriefing);
+        imposeTeleportRestrictionsOnGateways = getBoolean("gameplay-mechanics.impose-teleport-restrictions-on-gateways", imposeTeleportRestrictionsOnGateways);
         milkCuresBadOmen = getBoolean("gameplay-mechanics.milk-cures-bad-omen", milkCuresBadOmen);
         noteBlockIgnoreAbove = getBoolean("gameplay-mechanics.note-block-ignore-above", noteBlockIgnoreAbove);
         persistentDroppableEntityDisplayNames = getBoolean("gameplay-mechanics.persistent-droppable-entity-display-names", persistentDroppableEntityDisplayNames);