Add a getMinecraftVersion() method to the ProtocolManager.

This can be useful if you want to implement different read/write 
methods for each version of Minecraft.

ProtocolLib/src/main/java/com/comphenix/protocol/ProtocolManager.java

@@ -32,6 +32,7 @@ import com.comphenix.protocol.events.PacketContainer;
 import com.comphenix.protocol.events.PacketListener;
 import com.comphenix.protocol.injector.PacketConstructor;
 import com.comphenix.protocol.reflect.FieldAccessException;
+import com.comphenix.protocol.utility.MinecraftVersion;
 import com.google.common.collect.ImmutableSet;
 
 /**
@@ -169,6 +170,12 @@ public interface ProtocolManager extends PacketStream {
 	 */
 	public Set<Integer> getReceivingFilters();
 	
+	/**
+	 * Retrieve the current Minecraft version.
+	 * @return The current version.
+	 */
+	public MinecraftVersion getMinecraftVersion();
+	
 	/**
 	 * Determines whether or not this protocol mananger has been disabled. 
 	 * @return TRUE if it has, FALSE otherwise.

ProtocolLib/src/main/java/com/comphenix/protocol/injector/DelayedPacketManager.java

@@ -24,6 +24,7 @@ import com.comphenix.protocol.events.PacketContainer;
 import com.comphenix.protocol.events.PacketListener;
 import com.comphenix.protocol.injector.PacketFilterManager.PlayerInjectHooks;
 import com.comphenix.protocol.reflect.FieldAccessException;
+import com.comphenix.protocol.utility.MinecraftVersion;
 import com.google.common.base.Objects;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableSet;
@@ -123,10 +124,14 @@ public class DelayedPacketManager implements ProtocolManager, InternalManager {
 	private PluginManager queuedManager;
 	private Plugin queuedPlugin;
 	
-	public DelayedPacketManager(@Nonnull ErrorReporter reporter) {
+	private MinecraftVersion version;
+	
+	public DelayedPacketManager(@Nonnull ErrorReporter reporter, @Nonnull MinecraftVersion version) {
 		Preconditions.checkNotNull(reporter, "reporter cannot be NULL.");
+		Preconditions.checkNotNull(version, "version cannot be NULL.");
 		
 		this.reporter = reporter;
+		this.version = version;
 	}
 	
 	/**
@@ -136,6 +141,14 @@ public class DelayedPacketManager implements ProtocolManager, InternalManager {
 	public InternalManager getDelegate() {
 		return delegate;
 	}
+
+	@Override
+	public MinecraftVersion getMinecraftVersion() {
+		if (delegate != null)
+			return delegate.getMinecraftVersion();
+		else
+			return version;
+	}
 	
 	/**
 	 * Update the delegate to the underlying manager.

ProtocolLib/src/main/java/com/comphenix/protocol/injector/PacketFilterBuilder.java

@@ -190,7 +190,7 @@ public class PacketFilterBuilder {
 			// If the server hasn't loaded yet - wait
 			if (InjectedServerConnection.getServerConnection(reporter, server) == null) {
 				// We need to delay this until we know if Netty is enabled
-				final DelayedPacketManager delayed = new DelayedPacketManager(reporter);
+				final DelayedPacketManager delayed = new DelayedPacketManager(reporter, mcVersion);
 
 				// They must reference each other
 				delayed.setAsynchronousManager(asyncManager);

ProtocolLib/src/main/java/com/comphenix/protocol/injector/PacketFilterManager.java

@@ -66,6 +66,7 @@ import com.comphenix.protocol.injector.spigot.SpigotPacketInjector;
 import com.comphenix.protocol.reflect.FieldAccessException;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.utility.MinecraftVersion;
 import com.google.common.base.Objects;
 import com.google.common.base.Predicate;
 import com.google.common.collect.ImmutableSet;
@@ -179,6 +180,9 @@ public final class PacketFilterManager implements ProtocolManager, ListenerInvok
 	// Plugin verifier
 	private PluginVerifier pluginVerifier;
 	
+	// The current Minecraft version
+	private MinecraftVersion minecraftVersion;
+	
 	/**
 	 * Only create instances of this class if protocol lib is disabled.
 	 */
@@ -210,9 +214,10 @@ public final class PacketFilterManager implements ProtocolManager, ListenerInvok
 		
 		// The plugin verifier
 		this.pluginVerifier = new PluginVerifier(builder.getLibrary());
+		this.minecraftVersion = builder.getMinecraftVersion();
 		
 		// The write packet interceptor
-		interceptWritePacket = new InterceptWritePacket(classLoader, reporter);
+		this.interceptWritePacket = new InterceptWritePacket(classLoader, reporter);
 		
 		// Use the correct injection type
 		if (builder.isNettyEnabled()) {
@@ -267,6 +272,11 @@ public final class PacketFilterManager implements ProtocolManager, ListenerInvok
 		return new PacketFilterBuilder();
 	}
 	
+	@Override
+	public MinecraftVersion getMinecraftVersion() {
+		return minecraftVersion;
+	}
+	
 	@Override
 	public AsynchronousManager getAsynchronousManager() {
 		return asyncFilterManager;

ProtocolLib/src/main/java/com/comphenix/protocol/utility/MinecraftVersion.java

@@ -40,7 +40,7 @@ public class MinecraftVersion implements Comparable<MinecraftVersion> {
 	private final int major;
 	private final int minor;
 	private final int build;
-	
+
 	// The development stage
 	private final String development;
 
@@ -141,10 +141,10 @@ public class MinecraftVersion implements Comparable<MinecraftVersion> {
 	 * @return A normal version string.
 	 */
 	public String getVersion() {
-		if (development == null)
-			return String.format("%s.%s.%s", major, minor, build);
+		if (getDevelopmentStage() == null)
+			return String.format("%s.%s.%s", getMajor(), getMinor(), getBuild());
 		else
-			return String.format("%s.%s.%s-%s", major, minor, build, development);
+			return String.format("%s.%s.%s-%s", getMajor(), getMinor(), getBuild(), getDevelopmentStage());
 	}
 	
 	@Override
@@ -153,11 +153,11 @@ public class MinecraftVersion implements Comparable<MinecraftVersion> {
 			return 1;
 	
 		return ComparisonChain.start().
-					compare(major, o.major).
-					compare(minor, o.minor).
-					compare(build, o.build).
+					compare(getMajor(), o.getMajor()).
+					compare(getMinor(), o.getMinor()).
+					compare(getBuild(), o.getBuild()).
 					// No development String means it's a release
-					compare(development, o.development, Ordering.natural().nullsLast()).
+					compare(getDevelopmentStage(), o.getDevelopmentStage(), Ordering.natural().nullsLast()).
 					result();
 	}
 	
@@ -171,10 +171,10 @@ public class MinecraftVersion implements Comparable<MinecraftVersion> {
 		if (obj instanceof MinecraftVersion) {
 			MinecraftVersion other = (MinecraftVersion) obj;
 			
-			return major == other.major && 
-				   minor == other.minor && 
-				   build == other.build &&
-				   Objects.equal(development, other.development);
+			return getMajor() == other.getMajor() && 
+				   getMinor() == other.getMinor() && 
+				   getBuild() == other.getBuild() &&
+				   Objects.equal(getDevelopmentStage(), other.getDevelopmentStage());
 		}
 		
 		return false;
@@ -182,7 +182,7 @@ public class MinecraftVersion implements Comparable<MinecraftVersion> {
 	
 	@Override
 	public int hashCode() {
-		return Objects.hashCode(major, minor, build);
+		return Objects.hashCode(getMajor(), getMinor(), getBuild());
 	}
 
 	@Override