From e5678439f8c0fd79df801804cf2caafe0bd58575 Mon Sep 17 00:00:00 2001 From: Hugo Manrique Date: Mon, 23 Jul 2018 14:22:26 +0200 Subject: [PATCH] Vanished players don't have rights diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java index 07cd5aa28..fe0590dea 100644 --- a/src/main/java/net/minecraft/server/Entity.java +++ b/src/main/java/net/minecraft/server/Entity.java @@ -94,7 +94,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke private static int entityCount; private final EntityTypes g; public EntityTypes getEntityType() { return g; } // Paper - OBFHELPER private int id; - public boolean j; + public boolean j; public boolean blocksEntitySpawning() { return j; } // Paper - OBFHELPER public final List passengers; protected int k; private Entity vehicle; diff --git a/src/main/java/net/minecraft/server/ItemBlock.java b/src/main/java/net/minecraft/server/ItemBlock.java index 85d364b8f..ff6c8e2b5 100644 --- a/src/main/java/net/minecraft/server/ItemBlock.java +++ b/src/main/java/net/minecraft/server/ItemBlock.java @@ -70,7 +70,8 @@ public class ItemBlock extends Item { protected boolean b(BlockActionContext blockactioncontext, IBlockData iblockdata) { // CraftBukkit start - store default return - boolean defaultReturn = iblockdata.canPlace(blockactioncontext.getWorld(), blockactioncontext.getClickPosition()) && blockactioncontext.getWorld().a(iblockdata, blockactioncontext.getClickPosition()); + final World world = blockactioncontext.getWorld(); // Paper + boolean defaultReturn = iblockdata.canPlace(world, blockactioncontext.getClickPosition()) && world.a(iblockdata, blockactioncontext.getClickPosition()) && world.checkNoVisiblePlayerCollisions(blockactioncontext.getEntity(), iblockdata.getCollisionShape(world, blockactioncontext.getClickPosition())); // Paper - Use our entity search org.bukkit.entity.Player player = (blockactioncontext.getEntity() instanceof EntityPlayer) ? (org.bukkit.entity.Player) blockactioncontext.getEntity().getBukkitEntity() : null; BlockCanBuildEvent event = new BlockCanBuildEvent(CraftBlock.at(blockactioncontext.getWorld(), blockactioncontext.getClickPosition()), player, CraftBlockData.fromData(iblockdata), defaultReturn); diff --git a/src/main/java/net/minecraft/server/VoxelShape.java b/src/main/java/net/minecraft/server/VoxelShape.java index c6ec1a782..6c61718b2 100644 --- a/src/main/java/net/minecraft/server/VoxelShape.java +++ b/src/main/java/net/minecraft/server/VoxelShape.java @@ -24,6 +24,7 @@ public abstract class VoxelShape { return i <= 0 ? Double.NEGATIVE_INFINITY : this.a(enumdirection$enumaxis, i); } + public AxisAlignedBB getBounds() { return a(); } // Paper - OBFHELPER public AxisAlignedBB a() { if (this.isEmpty()) { throw new UnsupportedOperationException("No bounds for empty shape."); diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java index 858cc1b97..78e85aacf 100644 --- a/src/main/java/net/minecraft/server/World.java +++ b/src/main/java/net/minecraft/server/World.java @@ -1529,6 +1529,37 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc } } + // Paper start - Based on method below + /** + * @param entity causing the action ex. block placer + * @param voxelshape area to search within + * @return if there are no visible players colliding + */ + public boolean checkNoVisiblePlayerCollisions(@Nullable Entity entity, VoxelShape voxelshape) { + if (voxelshape.isEmpty()) { + return true; + } else { + List list = this.getEntities((Entity) null, voxelshape.getBounds()); + + for (int i = 0; i < list.size(); ++i) { + Entity entity1 = (Entity) list.get(i); + + if (entity instanceof EntityPlayer && entity1 instanceof EntityPlayer) { + if (!((EntityPlayer) entity).getBukkitEntity().canSee(((EntityPlayer) entity1).getBukkitEntity())) { + continue; + } + } + + if (!entity1.dead && entity1.blocksEntitySpawning()) { + return false; + } + } + + return true; + } + } + // Paper end + public boolean a(@Nullable Entity entity, VoxelShape voxelshape) { if (voxelshape.isEmpty()) { return true; diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java index dcd628104..41b05f231 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -976,6 +976,14 @@ public class CraftEventFactory { Projectile projectile = (Projectile) entity.getBukkitEntity(); org.bukkit.entity.Entity collided = position.entity.getBukkitEntity(); com.destroystokyo.paper.event.entity.ProjectileCollideEvent event = new com.destroystokyo.paper.event.entity.ProjectileCollideEvent(projectile, collided); + + if (projectile.getShooter() instanceof Player && collided instanceof Player) { + if (!((Player) projectile.getShooter()).canSee((Player) collided)) { + event.setCancelled(true); + return event; + } + } + Bukkit.getPluginManager().callEvent(event); return event; } -- 2.20.0