Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-17 03:50:08 +01:00
415 Zeilen
18 KiB
Diff
415 Zeilen
18 KiB
Diff
From 361e6e27db460279006522e3b5571ad25c52aac1 Mon Sep 17 00:00:00 2001
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From: md_5 <md_5@live.com.au>
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Date: Thu, 16 May 2013 18:51:05 +1000
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Subject: [PATCH] Orebfuscator
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diff --git a/src/main/java/net/minecraft/server/EntityFallingBlock.java b/src/main/java/net/minecraft/server/EntityFallingBlock.java
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index 22dc42d..fd78677 100644
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--- a/src/main/java/net/minecraft/server/EntityFallingBlock.java
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+++ b/src/main/java/net/minecraft/server/EntityFallingBlock.java
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@@ -60,6 +60,7 @@ public class EntityFallingBlock extends Entity {
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blockposition = new BlockPosition(this);
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if (this.world.getType(blockposition).getBlock() == block && !CraftEventFactory.callEntityChangeBlockEvent(this, blockposition.getX(), blockposition.getY(), blockposition.getZ(), Blocks.AIR, 0).isCancelled()) {
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this.world.setAir(blockposition);
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+ world.spigotConfig.antiXrayInstance.updateNearbyBlocks(world, blockposition); // Spigot
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} else if (!this.world.isStatic) {
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this.die();
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return;
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@@ -84,6 +85,7 @@ public class EntityFallingBlock extends Entity {
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return;
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}
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this.world.setTypeAndData(blockposition, this.block, 3);
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+ world.spigotConfig.antiXrayInstance.updateNearbyBlocks(world, blockposition); // Spigot
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// CraftBukkit end
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if (block instanceof BlockFalling) {
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((BlockFalling) block).a_(this.world, blockposition);
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diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java
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index 58951a7..e49c0a5 100644
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--- a/src/main/java/net/minecraft/server/Explosion.java
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+++ b/src/main/java/net/minecraft/server/Explosion.java
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@@ -198,6 +198,7 @@ public class Explosion {
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blockposition = (BlockPosition) iterator.next();
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Block block = this.world.getType(blockposition).getBlock();
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+ world.spigotConfig.antiXrayInstance.updateNearbyBlocks(world, blockposition); // Spigot
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if (flag) {
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double d0 = (double) ((float) blockposition.getX() + this.world.random.nextFloat());
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double d1 = (double) ((float) blockposition.getY() + this.world.random.nextFloat());
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diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
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index e24d3ae..e106a1f 100644
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--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
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+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
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@@ -18,6 +18,7 @@ public class PacketPlayOutMapChunk implements Packet {
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this.b = chunk.locZ;
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this.d = flag;
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this.c = a(chunk, flag, !chunk.getWorld().worldProvider.o(), i);
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+ chunk.world.spigotConfig.antiXrayInstance.obfuscateSync(chunk.locX, chunk.locZ, c.b, c.a, chunk.world);
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}
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public void a(PacketDataSerializer packetdataserializer) {
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diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
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index 8af5e1f..9df0d53 100644
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--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
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+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
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@@ -8,6 +8,7 @@ public class PacketPlayOutMapChunkBulk implements Packet {
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private int[] b;
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private ChunkMap[] c;
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private boolean d;
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+ private World world; // Spigot
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public PacketPlayOutMapChunkBulk() {}
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@@ -27,7 +28,8 @@ public class PacketPlayOutMapChunkBulk implements Packet {
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this.b[j] = chunk.locZ;
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this.c[j] = chunkmap;
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}
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-
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+
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+ world = ((Chunk) list.get(0)).getWorld(); // Spigot
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}
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public void a(PacketDataSerializer packetdataserializer) {
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@@ -67,6 +69,7 @@ public class PacketPlayOutMapChunkBulk implements Packet {
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}
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for (i = 0; i < this.a.length; ++i) {
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+ world.spigotConfig.antiXrayInstance.obfuscate(this.a[i], this.b[i], this.c[i].b, this.c[i].a, world); // Spigot
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packetdataserializer.writeBytes(this.c[i].a);
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}
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diff --git a/src/main/java/net/minecraft/server/PlayerInteractManager.java b/src/main/java/net/minecraft/server/PlayerInteractManager.java
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index b2431d9..7b469e1 100644
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--- a/src/main/java/net/minecraft/server/PlayerInteractManager.java
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+++ b/src/main/java/net/minecraft/server/PlayerInteractManager.java
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@@ -197,6 +197,7 @@ public class PlayerInteractManager {
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}
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}
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+ world.spigotConfig.antiXrayInstance.updateNearbyBlocks(world, blockposition); // Spigot
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}
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public void a(BlockPosition blockposition) {
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index dad3d19..f6b1dac 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -460,6 +460,7 @@ public abstract class World implements IBlockAccess {
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this.d(blockposition.up(), block);
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this.d(blockposition.north(), block);
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this.d(blockposition.south(), block);
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+ spigotConfig.antiXrayInstance.updateNearbyBlocks(this, blockposition); // Spigot
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}
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public void a(BlockPosition blockposition, Block block, EnumDirection enumdirection) {
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@@ -673,9 +674,16 @@ public abstract class World implements IBlockAccess {
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return this.worldProvider.p()[this.getLightLevel(blockposition)];
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}
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- public IBlockData getType(BlockPosition blockposition) {
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+ // Spigot start
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+ public IBlockData getType(BlockPosition blockposition)
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+ {
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+ return getType( blockposition, true );
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+ }
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+
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+ public IBlockData getType(BlockPosition blockposition, boolean useCaptured) {
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// CraftBukkit start - tree generation
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- if (captureTreeGeneration) {
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+ if (captureTreeGeneration && useCaptured) {
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+ // Spigot end
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Iterator<BlockState> it = capturedBlockStates.iterator();
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while (it.hasNext()) {
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BlockState previous = it.next();
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diff --git a/src/main/java/org/spigotmc/AntiXray.java b/src/main/java/org/spigotmc/AntiXray.java
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new file mode 100644
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index 0000000..6f28cd8
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--- /dev/null
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+++ b/src/main/java/org/spigotmc/AntiXray.java
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@@ -0,0 +1,234 @@
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+package org.spigotmc;
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+
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+import gnu.trove.set.TByteSet;
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+import gnu.trove.set.hash.TByteHashSet;
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+import net.minecraft.server.Block;
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+import net.minecraft.server.BlockPosition;
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+import net.minecraft.server.Blocks;
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+import net.minecraft.server.World;
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+import org.bukkit.craftbukkit.util.CraftMagicNumbers;
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+
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+public class AntiXray
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+{
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+
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+ private static final CustomTimingsHandler update = new CustomTimingsHandler( "xray - update" );
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+ private static final CustomTimingsHandler obfuscate = new CustomTimingsHandler( "xray - obfuscate" );
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+ /*========================================================================*/
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+ // Used to keep track of which blocks to obfuscate
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+ private final boolean[] obfuscateBlocks = new boolean[ Short.MAX_VALUE ];
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+ // Used to select a random replacement ore
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+ private final byte[] replacementOres;
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+
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+ public AntiXray(SpigotWorldConfig config)
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+ {
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+ // Set all listed blocks as true to be obfuscated
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+ for ( int id : ( config.engineMode == 1 ) ? config.hiddenBlocks : config.replaceBlocks )
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+ {
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+ obfuscateBlocks[id] = true;
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+ }
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+
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+ // For every block
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+ TByteSet blocks = new TByteHashSet();
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+ for ( Integer i : config.hiddenBlocks )
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+ {
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+ Block block = Block.getById( i );
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+ // Check it exists and is not a tile entity
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+ if ( block != null && !block.isTileEntity() )
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+ {
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+ // Add it to the set of replacement blocks
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+ blocks.add( (byte) (int) i );
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+ }
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+ }
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+ // Bake it to a flat array of replacements
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+ replacementOres = blocks.toArray();
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+ }
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+
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+ /**
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+ * Starts the timings handler, then updates all blocks within the set radius
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+ * of the given coordinate, revealing them if they are hidden ores.
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+ */
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+ public void updateNearbyBlocks(World world, BlockPosition position)
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+ {
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+ if ( world.spigotConfig.antiXray )
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+ {
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+ update.startTiming();
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+ updateNearbyBlocks( world, position, 2, false ); // 2 is the radius, we shouldn't change it as that would make it exponentially slower
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+ update.stopTiming();
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+ }
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+ }
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+
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+ /**
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+ * Starts the timings handler, and then removes all non exposed ores from
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+ * the chunk buffer.
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+ */
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+ public void obfuscateSync(int chunkX, int chunkY, int bitmask, byte[] buffer, World world)
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+ {
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+ if ( world.spigotConfig.antiXray )
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+ {
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+ obfuscate.startTiming();
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+ obfuscate( chunkX, chunkY, bitmask, buffer, world );
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+ obfuscate.stopTiming();
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+ }
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+ }
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+
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+ /**
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+ * Removes all non exposed ores from the chunk buffer.
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+ */
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+ public void obfuscate(int chunkX, int chunkY, int bitmask, byte[] buffer, World world)
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+ {
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+ // If the world is marked as obfuscated
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+ if ( world.spigotConfig.antiXray )
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+ {
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+ // Initial radius to search around for air
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+ int initialRadius = 1;
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+ // Which block in the buffer we are looking at, anywhere from 0 to 16^4
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+ int index = 0;
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+ // The iterator marking which random ore we should use next
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+ int randomOre = 0;
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+
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+ // Chunk corner X and Z blocks
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+ int startX = chunkX << 4;
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+ int startZ = chunkY << 4;
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+
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+ byte replaceWithTypeId;
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+ switch ( world.getWorld().getEnvironment() )
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+ {
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+ case NETHER:
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+ replaceWithTypeId = (byte) CraftMagicNumbers.getId(Blocks.NETHERRACK);
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+ break;
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+ case THE_END:
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+ replaceWithTypeId = (byte) CraftMagicNumbers.getId(Blocks.END_STONE);
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+ break;
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+ default:
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+ replaceWithTypeId = (byte) CraftMagicNumbers.getId(Blocks.STONE);
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+ break;
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+ }
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+
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+ // Chunks can have up to 16 sections
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+ for ( int i = 0; i < 16; i++ )
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+ {
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+ // If the bitmask indicates this chunk is sent...
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+ if ( ( bitmask & 1 << i ) != 0 )
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+ {
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+ // Work through all blocks in the chunk, y,z,x
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+ for ( int y = 0; y < 16; y++ )
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+ {
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+ for ( int z = 0; z < 16; z++ )
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+ {
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+ for ( int x = 0; x < 16; x++ )
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+ {
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+ // For some reason we can get too far ahead of ourselves (concurrent modification on bulk chunks?) so if we do, just abort and move on
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+ if ( index >= buffer.length )
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+ {
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+ index++;
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+ continue;
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+ }
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+ // Grab the block ID in the buffer.
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+ // TODO: extended IDs are not yet supported
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+ int blockId = (buffer[index << 1] & 0xFF)
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+ | ((buffer[(index << 1) + 1] & 0xFF) << 8);
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+ blockId >>>= 4;
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+ // Check if the block should be obfuscated
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+ if ( obfuscateBlocks[blockId] )
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+ {
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+ // The world isn't loaded, bail out
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+ if ( !isLoaded( world, new BlockPosition( startX + x, ( i << 4 ) + y, startZ + z ), initialRadius ) )
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+ {
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+ index++;
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+ continue;
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+ }
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+ // On the otherhand, if radius is 0, or the nearby blocks are all non air, we can obfuscate
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+ if ( !hasTransparentBlockAdjacent( world, new BlockPosition( startX + x, ( i << 4 ) + y, startZ + z ), initialRadius ) )
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+ {
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+ int newId = blockId;
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+ switch ( world.spigotConfig.engineMode )
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+ {
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+ case 1:
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+ // Replace with replacement material
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+ newId = replaceWithTypeId & 0xFF;
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+ break;
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+ case 2:
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+ // Replace with random ore.
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+ if ( randomOre >= replacementOres.length )
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+ {
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+ randomOre = 0;
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+ }
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+ newId = replacementOres[randomOre++] & 0xFF;
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+ break;
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+ }
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+ newId <<= 4;
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+ buffer[index << 1] = (byte) (newId & 0xFF);
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+ buffer[(index << 1) + 1] = (byte) ((newId >> 8) & 0xFF);
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+ }
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+ }
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+
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+ index++;
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+ }
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+ }
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+ }
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+ }
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+ }
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+ }
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+ }
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+
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+ private void updateNearbyBlocks(World world, BlockPosition position, int radius, boolean updateSelf)
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+ {
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+ // If the block in question is loaded
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+ if ( world.isLoaded( position ) )
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+ {
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+ // Get block id
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+ Block block = world.getType(position).getBlock();
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+
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+ // See if it needs update
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+ if ( updateSelf && obfuscateBlocks[Block.getId( block )] )
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+ {
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+ // Send the update
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+ world.notify( position );
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+ }
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+
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+ // Check other blocks for updates
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+ if ( radius > 0 )
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+ {
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+ updateNearbyBlocks( world, position.east(), radius - 1, true );
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+ updateNearbyBlocks( world, position.west(), radius - 1, true );
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+ updateNearbyBlocks( world, position.up(), radius - 1, true );
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+ updateNearbyBlocks( world, position.down(), radius - 1, true );
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+ updateNearbyBlocks( world, position.south(), radius - 1, true );
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+ updateNearbyBlocks( world, position.north(), radius - 1, true );
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+ }
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+ }
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+ }
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+
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+ private static boolean isLoaded(World world, BlockPosition position, int radius)
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+ {
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+ return world.isLoaded( position )
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+ && ( radius == 0 ||
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+ ( isLoaded( world, position.east(), radius - 1 )
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+ && isLoaded( world, position.west(), radius - 1 )
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+ && isLoaded( world, position.up(), radius - 1 )
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+ && isLoaded( world, position.down(), radius - 1 )
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+ && isLoaded( world, position.south(), radius - 1 )
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+ && isLoaded( world, position.north(), radius - 1 ) ) );
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+ }
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+
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+ private static boolean hasTransparentBlockAdjacent(World world, BlockPosition position, int radius)
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+ {
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+ return !isSolidBlock(world.getType(position, false).getBlock()) /* isSolidBlock */
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+ || ( radius > 0
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+ && ( hasTransparentBlockAdjacent( world, position.east(), radius - 1 )
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+ || hasTransparentBlockAdjacent( world, position.west(), radius - 1 )
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+ || hasTransparentBlockAdjacent( world, position.up(), radius - 1 )
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+ || hasTransparentBlockAdjacent( world, position.down(), radius - 1 )
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+ || hasTransparentBlockAdjacent( world, position.south(), radius - 1 )
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+ || hasTransparentBlockAdjacent( world, position.north(), radius - 1 ) ) );
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+ }
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+
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+ private static boolean isSolidBlock(Block block) {
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+ // Mob spawners are treated as solid blocks as far as the
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+ // game is concerned for lighting and other tasks but for
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+ // rendering they can be seen through therefor we special
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+ // case them so that the antixray doesn't show the fake
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+ // blocks around them.
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+ return block.isOccluding() && block != Blocks.MOB_SPAWNER;
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+ }
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+}
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diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
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index af0c4b2..c390381 100644
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--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
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+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
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@@ -1,5 +1,6 @@
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package org.spigotmc;
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+import java.util.Arrays;
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import java.util.List;
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import org.bukkit.Bukkit;
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import org.bukkit.configuration.file.YamlConfiguration;
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@@ -212,4 +213,36 @@ public class SpigotWorldConfig
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arrowDespawnRate = getInt( "arrow-despawn-rate", 1200 );
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log( "Arrow Despawn Rate: " + arrowDespawnRate );
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}
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+
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+ public boolean antiXray;
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+ public int engineMode;
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+ public List<Integer> hiddenBlocks;
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+ public List<Integer> replaceBlocks;
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+ public AntiXray antiXrayInstance;
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+ private void antiXray()
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+ {
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+ antiXray = getBoolean( "anti-xray.enabled", true );
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+ log( "Anti X-Ray: " + antiXray );
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+
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+ engineMode = getInt( "anti-xray.engine-mode", 1 );
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+ log( "\tEngine Mode: " + engineMode );
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+
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+ if ( SpigotConfig.version < 5 )
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+ {
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+ set( "anti-xray.blocks", null );
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+ }
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+ hiddenBlocks = getList( "anti-xray.hide-blocks", Arrays.asList( new Integer[]
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+ {
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+ 14, 15, 16, 21, 48, 49, 54, 56, 73, 74, 82, 129, 130
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+ } ) );
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+ log( "\tHidden Blocks: " + hiddenBlocks );
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+
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+ replaceBlocks = getList( "anti-xray.replace-blocks", Arrays.asList( new Integer[]
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+ {
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+ 1, 5
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+ } ) );
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+ log( "\tReplace Blocks: " + replaceBlocks );
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+
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+ antiXrayInstance = new AntiXray( this );
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+ }
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}
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--
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2.1.0
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