From 0000000000000000000000000000000000000000 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 5fd57a3d30972d86c62025d63cd57b56a147cc94..653e6d9a1640bedf08aaa5b436ac93e4cb1cb5b7 100644 --- a/src/main/java/net/minecraft/server/Entity.java +++ b/src/main/java/net/minecraft/server/Entity.java @@ -98,7 +98,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke private static double e = 1.0D; private final EntityTypes f; private int id; - public boolean i; + public boolean i; public final boolean blocksEntitySpawning() { return this.i; } // Paper - OBFHELPER public final List passengers; protected int j; @Nullable diff --git a/src/main/java/net/minecraft/server/EntityFireworks.java b/src/main/java/net/minecraft/server/EntityFireworks.java index 278ef79d8962cc5d337e34891c7ea3a606336cbb..5c3731f68a31b73b886b872eba69de483f78a2aa 100644 --- a/src/main/java/net/minecraft/server/EntityFireworks.java +++ b/src/main/java/net/minecraft/server/EntityFireworks.java @@ -110,6 +110,16 @@ public class EntityFireworks extends Entity implements IProjectile { vec3d = this.getMot(); MovingObjectPosition movingobjectposition = ProjectileHelper.a(this, this.getBoundingBox().a(vec3d).g(1.0D), (entity) -> { + // Paper start - Cancel hit for vanished players + if (this.spawningEntity != null && entity instanceof EntityPlayer && this.world instanceof WorldServer) { + Entity spawningEntity = ((WorldServer) this.world).getEntity(this.spawningEntity); + if (spawningEntity instanceof EntityPlayer) { + org.bukkit.entity.Player collided = (org.bukkit.entity.Player) entity.getBukkitEntity(); + org.bukkit.entity.Player shooter = (org.bukkit.entity.Player) spawningEntity.getBukkitEntity(); + if (!shooter.canSee(collided)) return false; + } + } + // Paper end return !entity.isSpectator() && entity.isAlive() && entity.isInteractable(); }, RayTrace.BlockCollisionOption.COLLIDER, true); diff --git a/src/main/java/net/minecraft/server/IBlockData.java b/src/main/java/net/minecraft/server/IBlockData.java index 181661fc8fe9d46cb36cfffac38c58f0d5003192..c5fddef030489bff0de9e0efb4f11c83bcfee628 100644 --- a/src/main/java/net/minecraft/server/IBlockData.java +++ b/src/main/java/net/minecraft/server/IBlockData.java @@ -147,6 +147,7 @@ public class IBlockData extends BlockDataAbstract implements return this.c != null ? this.c.g : this.b(iblockaccess, blockposition, VoxelShapeCollision.a()); } + public final VoxelShape getCollisionShape(IBlockAccess iblockaccess, BlockPosition blockposition, VoxelShapeCollision voxelshapecollision) { return this.b(iblockaccess, blockposition, voxelshapecollision); } // Paper - OBFHELPER public VoxelShape b(IBlockAccess iblockaccess, BlockPosition blockposition, VoxelShapeCollision voxelshapecollision) { return this.getBlock().b(this, iblockaccess, blockposition, voxelshapecollision); } diff --git a/src/main/java/net/minecraft/server/ItemBlock.java b/src/main/java/net/minecraft/server/ItemBlock.java index ab875a7365693264ea8e5002d9d115e16320dbc8..aed353365bfdf1a133997f47cb458edc78af6c8b 100644 --- a/src/main/java/net/minecraft/server/ItemBlock.java +++ b/src/main/java/net/minecraft/server/ItemBlock.java @@ -136,7 +136,8 @@ public class ItemBlock extends Item { EntityHuman entityhuman = blockactioncontext.getEntity(); VoxelShapeCollision voxelshapecollision = entityhuman == null ? VoxelShapeCollision.a() : VoxelShapeCollision.a((Entity) entityhuman); // CraftBukkit start - store default return - boolean defaultReturn = (!this.T_() || iblockdata.canPlace(blockactioncontext.getWorld(), blockactioncontext.getClickPosition())) && blockactioncontext.getWorld().a(iblockdata, blockactioncontext.getClickPosition(), voxelshapecollision); + World world = blockactioncontext.getWorld(); // Paper + boolean defaultReturn = (!this.T_() || iblockdata.canPlace(blockactioncontext.getWorld(), blockactioncontext.getClickPosition())) && world.checkEntityCollision(iblockdata, entityhuman, voxelshapecollision, blockactioncontext.getClickPosition(), true); // Paper 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 0f64a3c0569a778cd5b8c60f253c77681a83308d..0f95bcbccb96f9d525583f6bb6c0c0ed7fb7561b 100644 --- a/src/main/java/net/minecraft/server/VoxelShape.java +++ b/src/main/java/net/minecraft/server/VoxelShape.java @@ -46,6 +46,7 @@ public abstract class VoxelShape { return this.a.a(); } + public final VoxelShape offset(double x, double y, double z) { return this.a(x, y, z); } // Paper - OBFHELPER public VoxelShape a(double d0, double d1, double d2) { return (VoxelShape) (this.isEmpty() ? VoxelShapes.a() : new VoxelShapeArray(this.a, new DoubleListOffset(this.a(EnumDirection.EnumAxis.X), d0), new DoubleListOffset(this.a(EnumDirection.EnumAxis.Y), d1), new DoubleListOffset(this.a(EnumDirection.EnumAxis.Z), d2))); } diff --git a/src/main/java/net/minecraft/server/VoxelShapes.java b/src/main/java/net/minecraft/server/VoxelShapes.java index 0e30d8c9933dc6595b9715ef6dc99cc8910892cb..335142ec0dfad822cfe40877e99dec0f307e1a58 100644 --- a/src/main/java/net/minecraft/server/VoxelShapes.java +++ b/src/main/java/net/minecraft/server/VoxelShapes.java @@ -35,6 +35,7 @@ public final class VoxelShapes { return a(new AxisAlignedBB(d0, d1, d2, d3, d4, d5)); } + public static final VoxelShape of(AxisAlignedBB axisAlignedbb) { return VoxelShapes.a(axisAlignedbb); } // Paper - OBFHELPER public static VoxelShape a(AxisAlignedBB axisalignedbb) { int i = a(axisalignedbb.minX, axisalignedbb.maxX); int j = a(axisalignedbb.minY, axisalignedbb.maxY); @@ -129,6 +130,7 @@ public final class VoxelShapes { } } + public static final boolean applyOperation(VoxelShape voxelshape, VoxelShape voxelshape1, OperatorBoolean operatorboolean) { return VoxelShapes.c(voxelshape, voxelshape1, operatorboolean); } // Paper - OBFHELPER public static boolean c(VoxelShape voxelshape, VoxelShape voxelshape1, OperatorBoolean operatorboolean) { if (operatorboolean.apply(false, false)) { throw (IllegalArgumentException) SystemUtils.c(new IllegalArgumentException()); diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java index 688d98dd1e6e5d2e17c8fc04e105fdc0ee649574..037770cde15a72192f0f45fdac33f8bd66ba646c 100644 --- a/src/main/java/net/minecraft/server/World.java +++ b/src/main/java/net/minecraft/server/World.java @@ -153,6 +153,46 @@ public abstract class World implements GeneratorAccess, AutoCloseable { this.tileLimiter = new org.spigotmc.TickLimiter(spigotConfig.tileMaxTickTime); } + // Paper start + // ret true if no collision + public final boolean checkEntityCollision(IBlockData data, Entity source, VoxelShapeCollision voxelshapedcollision, + BlockPosition position, boolean checkCanSee) { + // Copied from IWorldReader#a(IBlockData, BlockPosition, VoxelShapeCollision) & EntityAccess#a(Entity, VoxelShape) + VoxelShape voxelshape = data.getCollisionShape(this, position, voxelshapedcollision); + if (voxelshape.isEmpty()) { + return true; + } + + voxelshape = voxelshape.offset((double) position.getX(), (double) position.getY(), (double) position.getZ()); + if (voxelshape.isEmpty()) { + return true; + } + + List entities = this.getEntities(null, voxelshape.getBoundingBox()); + for (int i = 0, len = entities.size(); i < len; ++i) { + Entity entity = entities.get(i); + + if (checkCanSee && source instanceof EntityPlayer && entity instanceof EntityPlayer + && !((EntityPlayer) source).getBukkitEntity().canSee(((EntityPlayer) entity).getBukkitEntity())) { + continue; + } + + // !entity1.dead && entity1.i && (entity == null || !entity1.x(entity)); + // elide the last check since vanilla calls with entity = null + // only we care about the source for the canSee check + if (entity.dead || !entity.blocksEntitySpawning()) { + continue; + } + + if (VoxelShapes.applyOperation(voxelshape, VoxelShapes.of(entity.getBoundingBox()), OperatorBoolean.AND)) { + return false; + } + } + + return true; + } + // Paper end + @Override public boolean p_() { return this.isClientSide; diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java index 6ca6ba46d0dd511072f518baa3aae6dc8281ef66..0125bf43e3383fddf7c36d831d19cca3f1ee3fae 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -1179,6 +1179,14 @@ public class CraftEventFactory { Projectile projectile = (Projectile) entity.getBukkitEntity(); org.bukkit.entity.Entity collided = position.getEntity().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; }