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Add config option for blocking and fix crash due to synchronization

This commit is contained in:
Myles 2016-03-09 12:08:21 +00:00
parent a743895c3f
commit b0050d4a8d
4 changed files with 35 additions and 23 deletions
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24
src/main/java/us/myles/ViaVersion/ViaVersionPlugin.java
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@ -116,23 +116,27 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
if (connection != null) {
for (Field field : connection.getClass().getDeclaredFields()) {
field.setAccessible(true);
Object value = field.get(connection);
final Object value = field.get(connection);
if (value instanceof List) {
// Inject the list
field.set(connection, new ListWrapper((List) value) {
@Override
public void handleAdd(Object o) {
if (o instanceof ChannelFuture) {
inject((ChannelFuture) o);
synchronized (value) {
if (o instanceof ChannelFuture) {
inject((ChannelFuture) o);
}
}
}
});
// Iterate through current list
for (Object o : (List) value) {
if (o instanceof ChannelFuture) {
inject((ChannelFuture) o);
} else {
break; // not the right list.
synchronized (value) {
for (Object o : (List) value) {
if (o instanceof ChannelFuture) {
inject((ChannelFuture) o);
} else {
break; // not the right list.
}
}
}
}
@ -221,6 +225,10 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
return getConfig().getBoolean("suppress-metadata-errors", false);
}
public boolean isShieldBlocking() {
return getConfig().getBoolean("shield-blocking", true);
}
public boolean isAutoTeam() {
// Collision has to be enabled first
if (!isPreventCollision()) return false;

9
src/main/java/us/myles/ViaVersion/transformers/IncomingTransformer.java
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@ -16,6 +16,7 @@ import us.myles.ViaVersion.util.PacketUtil;
import java.io.IOException;
public class IncomingTransformer {
private final ViaVersionPlugin plugin = (ViaVersionPlugin) ViaVersion.getInstance();
private final ConnectionInfo info;
private boolean startedBlocking = false;
@ -34,7 +35,7 @@ public class IncomingTransformer {
if (packet.getPacketID() != -1) {
packetID = packet.getPacketID();
}
if (ViaVersion.getInstance().isDebug()) {
if (plugin.isDebug()) {
if (packet != PacketType.PLAY_PLAYER_POSITION_LOOK_REQUEST && packet != PacketType.PLAY_KEEP_ALIVE_REQUEST && packet != PacketType.PLAY_PLAYER_POSITION_REQUEST && packet != PacketType.PLAY_PLAYER_LOOK_REQUEST) {
System.out.println("Direction " + packet.getDirection().name() + " Packet Type: " + packet + " New ID: " + packetID + " Original: " + original + " Size: " + input.readableBytes());
}
@ -267,7 +268,7 @@ public class IncomingTransformer {
output.writeByte(face);
PacketUtil.readVarInt(input);
ItemStack inHand = ViaVersionPlugin.getHandItem(info);
ItemStack inHand = plugin.getHandItem(info);
try {
ItemSlotRewriter.ItemStack item = ItemSlotRewriter.ItemStack.fromBukkit(inHand);
ItemSlotRewriter.fixIdsFrom1_9To1_8(item);
@ -291,8 +292,8 @@ public class IncomingTransformer {
output.writeLong(-1L);
output.writeByte(255);
// write item in hand
ItemStack inHand = ViaVersionPlugin.getHandItem(info);
if (inHand != null) {
ItemStack inHand = plugin.getHandItem(info);
if (inHand != null && plugin.isShieldBlocking()) {
if (inHand.getType().name().endsWith("SWORD")) {
// blocking?
if (hand == 0) {

21
src/main/java/us/myles/ViaVersion/transformers/OutgoingTransformer.java
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@ -830,17 +830,18 @@ public class OutgoingTransformer {
if (entry.getOldID() == 0) {
// Byte
byte data = (byte) entry.getValue();
if ((data & 0x10) == 0x10) {
if (validBlocking.contains(entityID)) {
ItemSlotRewriter.ItemStack shield = new ItemSlotRewriter.ItemStack();
shield.id = 442;
shield.amount = 1;
shield.data = 0;
sendSecondHandItem(entityID, shield);
if (entityID != info.getEntityID() && plugin.isShieldBlocking()) {
if ((data & 0x10) == 0x10) {
if (validBlocking.contains(entityID)) {
ItemSlotRewriter.ItemStack shield = new ItemSlotRewriter.ItemStack();
shield.id = 442;
shield.amount = 1;
shield.data = 0;
sendSecondHandItem(entityID, shield);
}
} else {
sendSecondHandItem(entityID, null);
}
} else {
sendSecondHandItem(entityID, null);
}
}
}

4
src/main/resources/config.yml
View File

@ -9,4 +9,6 @@ prevent-collision: true
# If the above is true, should we automatically team players until you do?
auto-team: true
# When enabled if certain metadata can't be read we won't tell you about it
suppress-metadata-errors: false
suppress-metadata-errors: false
# When enabled 1.9 will be able to block by using shields
shield-blocking: true