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/BlockBase.java b/src/main/java/net/minecraft/server/BlockBase.java index 47324feca49786b49563d3d0e854e74ad27c190b..16a8ee36ba2b23207cb8630623d542ac5943b9df 100644 --- a/src/main/java/net/minecraft/server/BlockBase.java +++ b/src/main/java/net/minecraft/server/BlockBase.java @@ -453,6 +453,7 @@ public abstract class BlockBase { return this.a != null ? this.a.b : 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().c(this.p(), iblockaccess, blockposition, voxelshapecollision); } diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java index 814c885313967f007584f6832111ec5b445e4088..e281ab94a1a69059db653789532735e8c5fd272a 100644 --- a/src/main/java/net/minecraft/server/Entity.java +++ b/src/main/java/net/minecraft/server/Entity.java @@ -99,7 +99,7 @@ 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 5ac7957016d1ca6bc78ced0bcf3767d358677f45..ca92579304d060e2b718aab6f3e3f006d52f93e5 100644 --- a/src/main/java/net/minecraft/server/EntityFireworks.java +++ b/src/main/java/net/minecraft/server/EntityFireworks.java @@ -118,7 +118,6 @@ public class EntityFireworks extends IProjectile { this.move(EnumMoveType.SELF, vec3d); this.setMot(vec3d); } - MovingObjectPosition movingobjectposition = ProjectileHelper.a(this, this::a, RayTrace.BlockCollisionOption.COLLIDER); if (!this.noclip) { diff --git a/src/main/java/net/minecraft/server/IProjectile.java b/src/main/java/net/minecraft/server/IProjectile.java index cdf80e50de0840002f62f4c1df4fbcc4e13675d7..f85d80d7bb3e4e92bb8d281dfe577f663ebe9da1 100644 --- a/src/main/java/net/minecraft/server/IProjectile.java +++ b/src/main/java/net/minecraft/server/IProjectile.java @@ -129,8 +129,14 @@ public abstract class IProjectile extends Entity { protected boolean a(Entity entity) { if (!entity.isSpectator() && entity.isAlive() && entity.isInteractable()) { Entity entity1 = this.getShooter(); - + // Paper start - Cancel hit for vanished players + if (entity1 instanceof EntityPlayer) { + org.bukkit.entity.Player collided = (org.bukkit.entity.Player) entity.getBukkitEntity(); + org.bukkit.entity.Player shooter = (org.bukkit.entity.Player) entity1.getBukkitEntity(); + if (!shooter.canSee(collided)) return false; + } return entity1 == null || this.d || !entity1.isSameVehicle(entity); + // Paper end } else { return false; } diff --git a/src/main/java/net/minecraft/server/ItemBlock.java b/src/main/java/net/minecraft/server/ItemBlock.java index 6c7f677f68d89d7e08c07a0f24268c5a638b4076..33d38a9a8a55c7a26d9a584e8058f42556b6ed59 100644 --- a/src/main/java/net/minecraft/server/ItemBlock.java +++ b/src/main/java/net/minecraft/server/ItemBlock.java @@ -139,7 +139,8 @@ 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.isCheckCollisions() || iblockdata.canPlace(blockactioncontext.getWorld(), blockactioncontext.getClickPosition())) && blockactioncontext.getWorld().a(iblockdata, blockactioncontext.getClickPosition(), voxelshapecollision); + World world = blockactioncontext.getWorld(); // Paper + boolean defaultReturn = (!this.isCheckCollisions() || 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 e985b0efc20f7d271be1c7ffc2670ab89fc3a6a7..c2b8c9820663f95f58f0c3a62cd9ec99c835a82f 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 86f6f082fe2991ea9065b09c9680b76ca1cf7154..b6e2a3d8d0cf510f497c6f974356fafaf2adc13b 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 66ce6afd46be67a131091d16b6a1221bbff333b5..f6cb503b8eb329cb6bfaa960f812da3c99ce45a8 100644 --- a/src/main/java/net/minecraft/server/World.java +++ b/src/main/java/net/minecraft/server/World.java @@ -170,6 +170,46 @@ 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 s_() { 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 3757a30e7b0ae1ec61211b2250bab47f70c776d4..a349ce7f04d6f2b29a0de534a3f7616778026666 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -1177,6 +1177,14 @@ 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; }