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Paper/Spigot-Server-Patches/0252-Vanished-players-don-t-have-rights.patch
Aikar b25236f0b7
[Auto] Updated Upstream (CraftBukkit) 
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
b6a876bc3 SPIGOT-5936: BlockPlaceEvent does not fire for lily_pad
2020-07-03 19:12:08 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hugo Manrique <hugmanrique@gmail.com>
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 26d446077bb563ca3c5bb0339695b3364a3e41bf..88a1db211286fc8a6164312d7eb0839c00969e0e 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 8e128fa303b345a10535630fd58442435ef1e439..af6f0c391e6e410f0bf4e4e6ddf6fd18bb4d26ed 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<Entity> 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..ea5f5845a8d202e62da3ae1bfb1e4dbd7f5e185e 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 && entity 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 d83bd0169bb4b8c25f44ae3582e58b8fea97ecbd..63d2294da4f0da628e62b782b71e34cb3eb959b5 100644
--- a/src/main/java/net/minecraft/server/ItemBlock.java
+++ b/src/main/java/net/minecraft/server/ItemBlock.java
@@ -154,7 +154,8 @@ 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 2e19fbddb6ede4abf02c79b4e72d11f89db05433..ca3e831e3191dd8ffe7f2b6ab9ecc05acfe1b0af 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -172,6 +172,46 @@ 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<Entity> 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 72f495327fe56e7d7ba41e39e99a69622a6861b2..cf25906786e246cb8dfdb5f2cb39f6dc08c4d7ca 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1205,6 +1205,14 @@ 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;
}
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