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Update orebfuscator

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This commit is contained in:
md_5 2013-05-16 18:51:25 +10:00
parent 24da21efb1
commit 6d6ebe7c7c
1 changed files with 81 additions and 44 deletions
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125
CraftBukkit-Patches/0015-Orebfuscator.patch
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@ -1,6 +1,6 @@
From a2ab3c1fe4df52ead3920ec9d29bfd4e93b1344d Mon Sep 17 00:00:00 2001
From 77b92872f2fc584029598f8d601251169a57d209 Mon Sep 17 00:00:00 2001
From: md_5 <md_5@live.com.au>
Date: Thu, 16 May 2013 18:16:02 +1000
Date: Thu, 16 May 2013 18:51:05 +1000
Subject: [PATCH] Orebfuscator
Implement lightweight orebfuscator to Spigot
@ -42,7 +42,7 @@ index d11c0ea..7711629 100644
try {
this.inflatedBuffer = chunkmap.a;
diff --git a/src/main/java/net/minecraft/server/Packet56MapChunkBulk.java b/src/main/java/net/minecraft/server/Packet56MapChunkBulk.java
index 129dc4f..7312e36 100644
index 129dc4f..ce28495 100644
--- a/src/main/java/net/minecraft/server/Packet56MapChunkBulk.java
+++ b/src/main/java/net/minecraft/server/Packet56MapChunkBulk.java
@@ -28,6 +28,7 @@ public class Packet56MapChunkBulk extends Packet {
@ -53,7 +53,7 @@ index 129dc4f..7312e36 100644
public Packet56MapChunkBulk() {}
@@ -46,12 +47,17 @@ public class Packet56MapChunkBulk extends Packet {
@@ -46,6 +47,9 @@ public class Packet56MapChunkBulk extends Packet {
Chunk chunk = (Chunk) list.get(k);
ChunkMap chunkmap = Packet51MapChunk.a(chunk, true, '\uffff');
@ -63,14 +63,15 @@ index 129dc4f..7312e36 100644
if (buildBuffer.length < j + chunkmap.a.length) {
byte[] abyte = new byte[j + chunkmap.a.length];
System.arraycopy(buildBuffer, 0, abyte, 0, buildBuffer.length);
buildBuffer = abyte;
@@ -54,6 +58,8 @@ public class Packet56MapChunkBulk extends Packet {
}
+ */
+ // Spigot end
System.arraycopy(chunkmap.a, 0, buildBuffer, j, chunkmap.a.length);
+ */
+ // Spigot end
j += chunkmap.a.length;
this.c[k] = chunk.x;
this.d[k] = chunk.z;
@@ -81,6 +87,22 @@ public class Packet56MapChunkBulk extends Packet {
if (this.buffer != null) {
return;
@ -173,14 +174,14 @@ index 67477f4..e5004b3 100644
}
diff --git a/src/main/java/org/spigotmc/OrebfuscatorManager.java b/src/main/java/org/spigotmc/OrebfuscatorManager.java
new file mode 100644
index 0000000..b1075f1
index 0000000..9de208b
--- /dev/null
+++ b/src/main/java/org/spigotmc/OrebfuscatorManager.java
@@ -0,0 +1,143 @@
@@ -0,0 +1,179 @@
+package org.spigotmc;
+
+import java.util.ArrayList;
+import java.util.List;
+import gnu.trove.set.TByteSet;
+import gnu.trove.set.hash.TByteHashSet;
+import net.minecraft.server.Block;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.World;
@ -188,79 +189,114 @@ index 0000000..b1075f1
+
+public class OrebfuscatorManager {
+
+ private static final CustomTimingsHandler update = new CustomTimingsHandler("xray - update");
+ private static final CustomTimingsHandler obfuscate = new CustomTimingsHandler("xray - obfuscate");
+ /*========================================================================*/
+ // Used to keep track of which blocks to obfuscate
+ private static final boolean[] obfuscateBlocks = new boolean[Short.MAX_VALUE];
+ private static byte[] ores;
+ private static final CustomTimingsHandler obfuscate = new CustomTimingsHandler("xray - obfuscate");
+ private static final CustomTimingsHandler update = new CustomTimingsHandler("xray - update");
+ // Used to select a random replacement ore
+ private static byte[] replacementOres;
+
+ // Default blocks
+ static {
+ // Set all listed blocks as true to be obfuscated
+ for (short id : MinecraftServer.getServer().server.orebfuscatorBlocks) {
+ obfuscateBlocks[id] = true;
+ }
+
+ List<Byte> blocks = new ArrayList<Byte>();
+ // For every block
+ TByteSet blocks = new TByteHashSet();
+ for (int i = 0; i < obfuscateBlocks.length; i++) {
+ // If we are obfuscating it
+ if (obfuscateBlocks[i]) {
+ Block block = Block.byId[i];
+ if (i != Block.STONE.id && block != null && !block.t() /* isTileEntity */) {
+ // Check it exists and is not a tile entity
+ if (block != null && !block.t() /* isTileEntity */) {
+ // Add it to the set of replacement blocks
+ blocks.add((byte) i);
+ }
+ }
+ }
+ ores = new byte[blocks.size()];
+ for (int i = 0; i < ores.length; i++) {
+ ores[i] = blocks.get(i);
+ // Bake it to a flat array of replacements
+ replacementOres = blocks.toArray();
+ }
+
+ /**
+ * Starts the timings handler, then updates all blocks within the set radius
+ * of the given coordinate, revealing them if they are hidden ores.
+ */
+ public static void updateNearbyBlocks(World world, int x, int y, int z) {
+ if (world.getWorld().obfuscated) {
+ update.startTiming();
+ updateNearbyBlocks(world, x, y, z, 2); // 2 is the radius, we shouldn't change it as that would make it exponentially slower
+ update.stopTiming();
+ }
+ }
+
+ public static void updateNearbyBlocks(World world, int x, int y, int z) {
+ update.startTiming();
+ updateNearbyBlocks(world, x, y, z, 2);
+ update.stopTiming();
+ }
+
+ /**
+ * Starts the timings handler, and then removes all non exposed ores from
+ * the chunk buffer.
+ */
+ public static void obfuscateSync(int chunkX, int chunkY, int bitmask, byte[] buffer, World world) {
+ obfuscate.startTiming();
+ obfuscate(chunkX, chunkY, bitmask, buffer, world);
+ obfuscate.stopTiming();
+ if (world.getWorld().obfuscated) {
+ obfuscate.startTiming();
+ obfuscate(chunkX, chunkY, bitmask, buffer, world);
+ obfuscate.stopTiming();
+ }
+ }
+
+ /**
+ * Removes all non exposed ores from the chunk buffer.
+ */
+ public static void obfuscate(int chunkX, int chunkY, int bitmask, byte[] buffer, World world) {
+ // If the world is marked as obfuscated
+ if (world.getWorld().obfuscated) {
+ // Initial radius to search around for air
+ int initialRadius = 1;
+ // Which block in the buffer we are looking at, anywhere from 0 to 16^4
+ int index = 0;
+ // The iterator marking which random ore we should use next
+ int randomOre = 0;
+
+ // Chunk corner X and Z blocks
+ int startX = chunkX << 4;
+ int startZ = chunkY << 4;
+ int iterator = 0;
+
+ // Chunks can have up to 16 sections
+ for (int i = 0; i < 16; i++) {
+ // If the bitmask indicates this chunk is sent...
+ if ((bitmask & 1 << i) != 0) {
+ // Work through all blocks in the chunk, y,z,x
+ for (int y = 0; y < 16; y++) {
+ for (int z = 0; z < 16; z++) {
+ for (int x = 0; x < 16; x++) {
+ byte data = buffer[index];
+ // Check if the block should be obfuscated for the default engine modes
+ if (obfuscateBlocks[data & 0xFF]) {
+ // Grab the block ID in the buffer.
+ // TODO: extended IDs are not yet supported
+ int blockId = buffer[index] & 0xFF;
+ // Check if the block should be obfuscated
+ if (obfuscateBlocks[blockId]) {
+ // TODO: Don't really understand this, but if radius is not 0 and the world isn't loaded, bail out
+ if (initialRadius != 0 && !isWorldLoaded(world, startX + x, (i << 4) + y, startZ + z, initialRadius)) {
+ continue;
+ }
+ // On the otherhand, if radius is 0, or the nearby blocks are all non air, we can obfuscate
+ if (initialRadius == 0 || !areAjacentBlocksTransparent(world, startX + x, (i << 4) + y, startZ + z, initialRadius)) {
+ if (world.getServer().orebfuscatorEngineMode == 2) {
+ // Replace with random ore.
+ if (iterator >= ores.length) {
+ iterator = 0;
+ }
+ buffer[index] = (byte) (int) ores[iterator++];
+ } else {
+ if (world.getServer().orebfuscatorEngineMode == 1) {
+ switch (world.getServer().orebfuscatorEngineMode) {
+ case 1:
+ // Replace with stone
+ buffer[index] = (byte) Block.STONE.id;
+ }
+ break;
+ case 2:
+ // Replace with random ore.
+ if (randomOre >= replacementOres.length) {
+ randomOre = 0;
+ }
+ buffer[index] = (byte) (int) replacementOres[randomOre++];
+ break;
+ }
+ }
+ }
+
+ // 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
+ if (++index >= buffer.length) {
+ return;
+ }
@ -273,7 +309,8 @@ index 0000000..b1075f1
+ }
+
+ private static void updateNearbyBlocks(World world, int x, int y, int z, int radius) {
+ if (world.getWorld().obfuscated && world.isLoaded(x, y, z)) {
+ // If the block in question is loaded
+ if (world.isLoaded(x, y, z)) {
+ // Get block id
+ int id = world.getTypeId(x, y, z);
+