1 files changed, 191 insertions, 0 deletions
diff --git a/Minecraft.World/MoveEntityPacketSmall.cpp b/Minecraft.World/MoveEntityPacketSmall.cpp
new file mode 100644
index 00000000..8216478f
--- /dev/null
+++ b/Minecraft.World/MoveEntityPacketSmall.cpp
@@ -0,0 +1,191 @@
+#include "stdafx.h"
+#include <iostream>
+#include "InputOutputStream.h"
+#include "PacketListener.h"
+#include "MoveEntityPacketSmall.h"
+
+
+MoveEntityPacketSmall::MoveEntityPacketSmall() 
+{
+	hasRot = false;
+
+	id = -1;
+	xa = 0;
+	ya = 0;
+	za = 0;
+	yRot = 0;
+	xRot = 0;
+}
+
+MoveEntityPacketSmall::MoveEntityPacketSmall(int id)
+{
+	if( (id < 0 ) || (id >= 2048 ) )
+	{
+		// We shouln't be tracking an entity that doesn't have a short type of id
+		__debugbreak();
+	}
+
+	this->id = id;
+	hasRot = false;
+
+	xa = 0;
+	ya = 0;
+	za = 0;
+	yRot = 0;
+	xRot = 0;
+}
+
+void MoveEntityPacketSmall::read(DataInputStream *dis) //throws IOException 
+{
+	id = dis->readShort();
+}
+
+void MoveEntityPacketSmall::write(DataOutputStream *dos) //throws IOException
+{
+	if( (id < 0 ) || (id >= 2048 ) )
+	{
+		// We shouln't be tracking an entity that doesn't have a short type of id
+		__debugbreak();
+	}
+	dos->writeShort((short)id);
+}
+
+void MoveEntityPacketSmall::handle(PacketListener *listener)
+{
+	listener->handleMoveEntitySmall(shared_from_this());
+}
+
+int MoveEntityPacketSmall::getEstimatedSize() 
+{
+	return 2;
+}
+
+bool MoveEntityPacketSmall::canBeInvalidated()
+{
+	return true;
+}
+
+bool MoveEntityPacketSmall::isInvalidatedBy(shared_ptr<Packet> packet)
+{
+	shared_ptr<MoveEntityPacketSmall> target = dynamic_pointer_cast<MoveEntityPacketSmall>(packet);
+	return target != NULL && target->id == id;
+}
+
+MoveEntityPacketSmall::PosRot::PosRot()
+{
+	hasRot = true;
+}
+
+MoveEntityPacketSmall::PosRot::PosRot(int id, char xa, char ya, char za, char yRot, char xRot) : MoveEntityPacketSmall( id )
+{
+	this->xa = xa;
+	this->ya = ya;
+	this->za = za;
+	this->yRot = yRot;
+	this->xRot = xRot;
+	hasRot = true;
+}
+
+void MoveEntityPacketSmall::PosRot::read(DataInputStream *dis) //throws IOException 
+{
+	int idAndRot = dis->readShort();
+	this->id = idAndRot & 0x07ff;
+	this->yRot = idAndRot >> 11;
+	int xAndYAndZ = (int)dis->readShort();
+	this->xa = xAndYAndZ >> 11; 
+	this->ya = (xAndYAndZ << 21 ) >> 26;
+	this->za = (xAndYAndZ << 27 ) >> 27;
+}
+
+void MoveEntityPacketSmall::PosRot::write(DataOutputStream *dos) //throws IOException 
+{
+	if( (id < 0 ) || (id >= 2048 ) )
+	{
+		// We shouln't be tracking an entity that doesn't have a short type of id
+		__debugbreak();
+	}
+	short idAndRot = id | yRot << 11;
+	dos->writeShort(idAndRot);
+	short xAndYAndZ = ( xa << 11 ) | ( ( ya & 0x3f ) << 5 ) | ( za & 0x1f );
+	dos->writeShort(xAndYAndZ);
+}
+
+int MoveEntityPacketSmall::PosRot::getEstimatedSize() 
+{
+	return 4;
+}
+
+MoveEntityPacketSmall::Pos::Pos() 
+{
+}
+
+MoveEntityPacketSmall::Pos::Pos(int id, char xa, char ya, char za) : MoveEntityPacketSmall(id)
+{
+	this->xa = xa;
+	this->ya = ya;
+	this->za = za;
+}
+
+void MoveEntityPacketSmall::Pos::read(DataInputStream *dis) //throws IOException 
+{
+	int idAndY = dis->readShort();
+	this->id = idAndY & 0x07ff;
+	this->ya = idAndY >> 11;
+	int XandZ = (int)((signed char)(dis->readByte()));
+	xa = XandZ >> 4;
+	za = ( XandZ << 28 ) >> 28;
+}
+
+void MoveEntityPacketSmall::Pos::write(DataOutputStream *dos) //throws IOException
+{
+	if( (id < 0 ) || (id >= 2048 ) )
+	{
+		// We shouln't be tracking an entity that doesn't have a short type of id
+		__debugbreak();
+	}
+	short idAndY = id | ya << 11;
+	dos->writeShort(idAndY);
+	char XandZ = ( xa << 4 ) | ( za & 0x0f );
+	dos->writeByte(XandZ);
+}
+
+int MoveEntityPacketSmall::Pos::getEstimatedSize()
+{
+	return 3;
+}
+
+MoveEntityPacketSmall::Rot::Rot() 
+{
+	hasRot = true;
+}
+
+MoveEntityPacketSmall::Rot::Rot(int id, char yRot, char xRot) : MoveEntityPacketSmall(id)
+{
+
+	this->yRot = yRot;
+	this->xRot = xRot;
+	hasRot = true;
+}
+
+void MoveEntityPacketSmall::Rot::read(DataInputStream *dis) //throws IOException 
+{
+	int idAndRot = (int)dis->readShort();
+	this->id = idAndRot & 0x07ff;
+	this->yRot = idAndRot >> 11;
+}
+
+void MoveEntityPacketSmall::Rot::write(DataOutputStream *dos) //throws IOException 
+{
+	if( (id < 0 ) || (id >= 2048 ) )
+	{
+		// We shouln't be tracking an entity that doesn't have a short type of id
+		__debugbreak();
+	}
+	short idAndRot = id | yRot << 11;
+	dos->writeShort(idAndRot);
+}
+
+int MoveEntityPacketSmall::Rot::getEstimatedSize()
+{
+	return 2;
+}