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fix MultiBlockChangePacket again and add util method

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This commit is contained in:
Eoghanmc22 2020-09-02 15:25:03 -04:00
parent 664546d25d
commit 0c50164f40
2 changed files with 16 additions and 1 deletions
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10
src/main/java/net/minestom/server/network/packet/server/play/MultiBlockChangePacket.java
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@ -1,5 +1,6 @@
package net.minestom.server.network.packet.server.play;
import net.minestom.server.instance.Chunk;
import net.minestom.server.network.packet.server.ServerPacket;
import net.minestom.server.network.packet.server.ServerPacketIdentifier;
import net.minestom.server.utils.binary.BinaryWriter;
@ -23,13 +24,20 @@ public class MultiBlockChangePacket implements ServerPacket {
writer.writeVarInt(length);
for (int i = 0; i < length; i++) {
final BlockChange blockChange = blockChanges[i];
writer.writeVarInt(blockChange.newBlockId << 12 | ChunkUtils.getLocalBlockPosAsShort(blockChange.positionX, blockChange.positionY, blockChange.positionZ));
writer.writeVarLong(blockChange.newBlockId << 12 | getLocalBlockPosAsShort(blockChange.positionX, blockChange.positionY, blockChange.positionZ));
}
} else {
writer.writeVarInt(0);
}
}
public static short getLocalBlockPosAsShort(int x, int y, int z) {
x = x % Chunk.CHUNK_SIZE_X;
y = y % 16;
z = z % Chunk.CHUNK_SIZE_Z;
return (short) (x << 8 | z << 4 | y);
}
@Override
public int getId() {
return ServerPacketIdentifier.MULTI_BLOCK_CHANGE;

7
src/main/java/net/minestom/server/utils/chunk/ChunkUtils.java
View File

@ -95,6 +95,13 @@ public final class ChunkUtils {
return (short) (x << 12 | y << 4 | z);
}
public static BlockPosition getBlockPositionFromLocalShort(short index) {
int x = index >> 12 & 0b1111;
int y = (index >> 4) & 0b11111111;
int z = index & 0b1111;
return new BlockPosition(x, y, z);
}
public static int getSectionAt(int y) {
return y / Chunk.CHUNK_SECTION_SIZE;
}