Fix player entities being half-despawned after jumping in time (fixes #93)

This commit is contained in:
Jonas Herzig
2017-08-28 10:56:37 +02:00
parent 41d2547f3c
commit b27af2781b

View File

@@ -19,16 +19,22 @@ import net.minecraft.client.resources.I18n;
import net.minecraft.entity.Entity;
import net.minecraft.network.*;
import net.minecraft.network.play.server.*;
import net.minecraft.util.ClassInheritanceMultiMap;
import net.minecraft.util.IChatComponent;
import net.minecraft.util.MathHelper;
import net.minecraft.world.EnumDifficulty;
import net.minecraft.world.World;
import net.minecraft.world.WorldSettings.GameType;
import net.minecraft.world.WorldType;
import net.minecraft.world.chunk.Chunk;
import net.minecraft.world.chunk.IChunkProvider;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
@@ -799,6 +805,49 @@ public class ReplaySender extends ChannelDuplexHandler {
}
protected Packet processPacketSync(Packet p) {
if (p instanceof S21PacketChunkData) {
S21PacketChunkData packet = (S21PacketChunkData) p;
if (packet.func_149276_g() == 0) {
// If the chunk is getting unloaded, we will have to forcefully update the position of all entities
// within. Otherwise, if there wasn't a game tick recently, there may be entities that have moved
// out of the chunk by now but are still registered in it. If we do not update those, they will get
// unloaded even though they shouldn't.
// To make things worse, it seems like players were never supposed to be unloaded this way because
// they will remain glitched in the World#playerEntities list.
World world = mc.theWorld;
IChunkProvider chunkProvider = world.getChunkProvider();
// Get the chunk that will be unloaded
Chunk chunk = chunkProvider.provideChunk(packet.func_149273_e(), packet.func_149271_f());
if (!chunk.isEmpty()) {
List<Entity> entitiesInChunk = new ArrayList<>();
// Gather all entities in that chunk
for (ClassInheritanceMultiMap entityList : chunk.getEntityLists()) {
@SuppressWarnings("unchecked")
Collection<Entity> typedEntityList = entityList;
entitiesInChunk.addAll(typedEntityList);
}
for (Entity entity : entitiesInChunk) {
// Skip interpolation of position updates coming from server
// (See: newX in EntityLivingBase or otherPlayerMPX in EntityOtherPlayerMP)
entity.onUpdate();
// Check whether the entity has left the chunk
int chunkX = MathHelper.floor_double(entity.posX / 16);
int chunkZ = MathHelper.floor_double(entity.posZ / 16);
if (entity.chunkCoordX != chunkX || entity.chunkCoordZ != chunkZ) {
// Entity has left the chunk
chunk.removeEntityAtIndex(entity, entity.chunkCoordY);
if (chunkProvider.chunkExists(chunkX, chunkZ)) {
chunkProvider.provideChunk(chunkX, chunkZ).addEntity(entity);
} else {
// Entity has left all loaded chunks
entity.addedToChunk = false;
}
}
}
}
}
}
return p; // During synchronous playback everything is sent normally
}