wip PacketUpdateLight

src/main/java/de/bixilon/minosoft/protocol/packets/clientbound/play/PacketUpdateLight.java

@@ -0,0 +1,51 @@
+/*
+ * Codename Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ *  This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.protocol.packets.clientbound.play;
+
+import de.bixilon.minosoft.game.datatypes.world.ChunkLocation;
+import de.bixilon.minosoft.logging.Log;
+import de.bixilon.minosoft.protocol.packets.ClientboundPacket;
+import de.bixilon.minosoft.protocol.protocol.InByteBuffer;
+import de.bixilon.minosoft.protocol.protocol.PacketHandler;
+import de.bixilon.minosoft.util.ChunkUtil;
+
+public class PacketUpdateLight implements ClientboundPacket {
+    ChunkLocation location;
+
+    @Override
+    public boolean read(InByteBuffer buffer) {
+        switch (buffer.getVersion()) {
+            case VERSION_1_14_4:
+                location = new ChunkLocation(buffer.readVarInt(), buffer.readVarInt());
+                int skyLightMask = buffer.readVarInt();
+                int blockLightMask = buffer.readVarInt();
+                int emptyBlockLightMask = buffer.readVarInt();
+                int emptySkyLightMask = buffer.readVarInt();
+                ChunkUtil.readSkyLightPacket(buffer, skyLightMask, blockLightMask, emptyBlockLightMask, emptySkyLightMask);
+                return true;
+        }
+
+        return false;
+    }
+
+    @Override
+    public void log() {
+        Log.protocol(String.format("Received sky light update (location=%s)", location));
+    }
+
+    @Override
+    public void handle(PacketHandler h) {
+        h.handle(this);
+    }
+}

src/main/java/de/bixilon/minosoft/protocol/protocol/PacketHandler.java

@@ -602,4 +602,7 @@ public class PacketHandler {
 
     public void handle(PacketStopSound pkg) {
     }
+
+    public void handle(PacketUpdateLight pkg) {
+    }
 }

src/main/java/de/bixilon/minosoft/protocol/protocol/Protocol.java

@@ -158,6 +158,7 @@ public abstract class Protocol implements ProtocolInterface {
         packetClassMapping.put(Packets.Clientbound.PLAY_TAGS, PacketTags.class);
         packetClassMapping.put(Packets.Clientbound.PLAY_DECLARE_RECIPES, PacketDeclareRecipes.class);
         packetClassMapping.put(Packets.Clientbound.PLAY_STOP_SOUND, PacketStopSound.class);
+        packetClassMapping.put(Packets.Clientbound.PLAY_UPDATE_LIGHT, PacketUpdateLight.class);
     }
 
     public static ProtocolVersion getLowestVersionSupported() {

src/main/java/de/bixilon/minosoft/util/ChunkUtil.java

@@ -196,7 +196,7 @@ public class ChunkUtil {
                         }
                     }
 
-                    if (buffer.getVersion().getVersionNumber() < ProtocolVersion.VERSION_1_14_4.getVersionNumber()) {
+                    if (buffer.getVersion().getVersionNumber() <= ProtocolVersion.VERSION_1_13_2.getVersionNumber()) {
                         byte[] light = buffer.readBytes(2048);
                         if (containsSkyLight) {
                             byte[] skyLight = buffer.readBytes(2048);
@@ -212,4 +212,20 @@ public class ChunkUtil {
         throw new RuntimeException("Could not parse chunk!");
     }
 
+    public static void readSkyLightPacket(InByteBuffer buffer, int skyLightMask, int blockLightMask, int emptyBlockLightMask, int emptySkyLightMask) {
+        for (byte c = 0; c < 18; c++) { // light sections
+            if (!BitByte.isBitSet(skyLightMask, c)) {
+                continue;
+            }
+            byte[] skyLight = buffer.readBytes(buffer.readVarInt());
+        }
+        for (byte c = 0; c < 18; c++) { // light sections
+            if (!BitByte.isBitSet(blockLightMask, c)) {
+                continue;
+            }
+            byte[] blockLight = buffer.readBytes(buffer.readVarInt());
+        }
+        // ToDo
+    }
+
 }