VoxelBlockGame / Minecraft.World / SynchedEntityData.cpp

#include "stdafx.h"
#include "Class.h"
#include "BasicTypeContainers.h"
#include "InputOutputStream.h"
#include "net.minecraft.h"
#include "net.minecraft.network.packet.h"
#include "net.minecraft.world.item.h"
#include "SynchedEntityData.h"


SynchedEntityData::SynchedEntityData()
{
	m_isDirty = false;
	m_isEmpty = true;
}

void SynchedEntityData::define(int id, int value)
{
	MemSect(17);
	checkId(id);
	int type = TYPE_INT;
	shared_ptr<DataItem> dataItem = shared_ptr<DataItem>( new DataItem(type, id, value) );
	itemsById[id] = dataItem;
	MemSect(0);
	m_isEmpty = false;
}

void SynchedEntityData::define(int id, byte value)
{
	MemSect(17);
	checkId(id);
	int type = TYPE_BYTE;
	shared_ptr<DataItem> dataItem = shared_ptr<DataItem>( new DataItem(type, id, value) );
	itemsById[id] = dataItem;
	MemSect(0);
	m_isEmpty = false;
}

void SynchedEntityData::define(int id, short value)
{
	MemSect(17);
	checkId(id);
	int type = TYPE_SHORT;
	shared_ptr<DataItem> dataItem = shared_ptr<DataItem>( new DataItem(type, id, value) );
	itemsById[id] = dataItem;
	MemSect(0);
	m_isEmpty = false;
}

void SynchedEntityData::define(int id, float value)
{
	MemSect(17);
	checkId(id);
	int type = TYPE_FLOAT;
	shared_ptr<DataItem> dataItem = shared_ptr<DataItem>( new DataItem(type, id, value) );
	itemsById[id] = dataItem;
	MemSect(0);
	m_isEmpty = false;
}

void SynchedEntityData::define(int id, const wstring& value)
{
	MemSect(17);
	checkId(id);
	int type = TYPE_STRING;
	shared_ptr<DataItem> dataItem = shared_ptr<DataItem>( new DataItem(type, id, value) );
	itemsById[id] = dataItem;
	MemSect(0);
	m_isEmpty = false;
}

void SynchedEntityData::defineNULL(int id, void *pVal)
{
	MemSect(17);
	checkId(id);
	int type = TYPE_ITEMINSTANCE;
	shared_ptr<DataItem> dataItem = shared_ptr<DataItem>( new DataItem(type, id, shared_ptr<ItemInstance>()) );
	itemsById[id] = dataItem;
	MemSect(0);
	m_isEmpty = false;
}

void SynchedEntityData::checkId(int id)
{
#if 0
	if (id > MAX_ID_VALUE)
	{
		throw new IllegalArgumentException(L"Data value id is too big with " + _toString<int>(id) + L"! (Max is " + _toString<int>(MAX_ID_VALUE) + L")");
	}
	if (itemsById.find(id) != itemsById.end())
	{
		throw new IllegalArgumentException(L"Duplicate id value for " + _toString<int>(id) + L"!");
	}
#endif
}

byte SynchedEntityData::getByte(int id)
{
	return itemsById[id]->getValue_byte();
}

short SynchedEntityData::getShort(int id)
{
	return itemsById[id]->getValue_short();
}

int SynchedEntityData::getInteger(int id)
{
	return itemsById[id]->getValue_int();
}

float SynchedEntityData::getFloat(int id)
{
	return itemsById[id]->getValue_float();
}

wstring SynchedEntityData::getString(int id)
{
	return itemsById[id]->getValue_wstring();
}

shared_ptr<ItemInstance> SynchedEntityData::getItemInstance(int id)
{
	//assert(false);	// 4J - not currently implemented
	return itemsById[id]->getValue_itemInstance();
}

Pos *SynchedEntityData::getPos(int id)
{
	assert(false);	// 4J - not currently implemented
	return NULL;
}

void SynchedEntityData::set(int id, int value)
{
	shared_ptr<DataItem> dataItem = itemsById[id];

	// update the value if it has changed
	if (value != dataItem->getValue_int())
	{
		dataItem->setValue(value);
		dataItem->setDirty(true);
		m_isDirty = true;
	}
}

void SynchedEntityData::set(int id, byte value)
{
	shared_ptr<DataItem> dataItem = itemsById[id];

	// update the value if it has changed
	if (value != dataItem->getValue_byte())
	{
		dataItem->setValue(value);
		dataItem->setDirty(true);
		m_isDirty = true;
	}
}

void SynchedEntityData::set(int id, short value)
{
	shared_ptr<DataItem> dataItem = itemsById[id];

	// update the value if it has changed
	if (value != dataItem->getValue_short())
	{
		dataItem->setValue(value);
		dataItem->setDirty(true);
		m_isDirty = true;
	}
}

void SynchedEntityData::set(int id, float value)
{
	shared_ptr<DataItem> dataItem = itemsById[id];

	// update the value if it has changed
	if (value != dataItem->getValue_float())
	{
		dataItem->setValue(value);
		dataItem->setDirty(true);
		m_isDirty = true;
	}
}

void SynchedEntityData::set(int id, const wstring& value)
{
	shared_ptr<DataItem> dataItem = itemsById[id];

	// update the value if it has changed
	if (value != dataItem->getValue_wstring())
	{
		dataItem->setValue(value);
		dataItem->setDirty(true);
		m_isDirty = true;
	}
}

void SynchedEntityData::set(int id, shared_ptr<ItemInstance> value)
{
	shared_ptr<DataItem> dataItem = itemsById[id];

	// update the value if it has changed
	if (value != dataItem->getValue_itemInstance())
	{
		dataItem->setValue(value);
		dataItem->setDirty(true);
		m_isDirty = true;
	}
}

void SynchedEntityData::markDirty(int id)
{
	itemsById[id]->dirty = true;
	m_isDirty = true;
}

bool SynchedEntityData::isDirty()
{
	return m_isDirty;
}

void SynchedEntityData::pack(vector<shared_ptr<DataItem> > *items, DataOutputStream *output) // TODO throws IOException
{

	if (items != NULL)
	{
		AUTO_VAR(itEnd, items->end());
		for (AUTO_VAR(it, items->begin()); it != itEnd; it++)
		{
			shared_ptr<DataItem> dataItem = *it;
			writeDataItem(output, dataItem);
		}
	}

	// add an eof
	output->writeByte(EOF_MARKER);
}

vector<shared_ptr<SynchedEntityData::DataItem> > *SynchedEntityData::packDirty()
{

	vector<shared_ptr<DataItem> > *result = NULL;

	if (m_isDirty)
	{
		for( int i = 0; i <= MAX_ID_VALUE; i++ )
		{
			shared_ptr<DataItem> dataItem = itemsById[i];
			if ((dataItem != NULL) && dataItem->isDirty())
			{
				dataItem->setDirty(false);

				if (result == NULL)
				{
					result = new vector<shared_ptr<DataItem> >();
				}
				result->push_back(dataItem);
			}
		}
	}
	m_isDirty = false;

	return result;
}

void SynchedEntityData::packAll(DataOutputStream *output) // throws IOException
{
	for( int i = 0; i <= MAX_ID_VALUE; i++ )
	{
		shared_ptr<DataItem> dataItem = itemsById[i];
		if(dataItem != NULL)
		{
			writeDataItem(output, dataItem);
		}
	}

	// add an eof
	output->writeByte(EOF_MARKER);
}

vector<shared_ptr<SynchedEntityData::DataItem> > *SynchedEntityData::getAll()
{
	vector<shared_ptr<DataItem> > *result = NULL;

	for( int i = 0; i <= MAX_ID_VALUE; i++ )
	{
		shared_ptr<DataItem> dataItem = itemsById[i];
		if(dataItem != NULL)
		{
			if (result == NULL)
			{
				result = new vector<shared_ptr<DataItem> >();
			}
			result->push_back(dataItem);
		}
	}

	return result;
}


void SynchedEntityData::writeDataItem(DataOutputStream *output, shared_ptr<DataItem> dataItem) //throws IOException
{
	// pack type and id
	int header = ((dataItem->getType() << TYPE_SHIFT) | (dataItem->getId() & MAX_ID_VALUE)) & 0xff;
	output->writeByte(header);

	// write value
	switch (dataItem->getType())
	{
	case TYPE_BYTE:
		output->writeByte( dataItem->getValue_byte());
		break;	
	case TYPE_INT:
		output->writeInt( dataItem->getValue_int());
		break;
	case TYPE_SHORT:
		output->writeShort( dataItem->getValue_short());
		break;
	case TYPE_FLOAT:
		output->writeFloat( dataItem->getValue_float());
		break;
	case TYPE_STRING:
		Packet::writeUtf(dataItem->getValue_wstring(), output);
		break;
	case TYPE_ITEMINSTANCE: 
		{
			shared_ptr<ItemInstance> instance = (shared_ptr<ItemInstance> )dataItem->getValue_itemInstance();
			Packet::writeItem(instance, output);
		}
		break;
							
	default:
		assert(false);	// 4J - not implemented
		break;
	}
}

vector<shared_ptr<SynchedEntityData::DataItem> > *SynchedEntityData::unpack(DataInputStream *input) //throws IOException
{

	vector<shared_ptr<DataItem> > *result = NULL;

	int currentHeader = input->readByte();

	while (currentHeader != EOF_MARKER)
	{

		if (result == NULL)
		{
			result = new vector<shared_ptr<DataItem> >();
		}

		// split type and id
		int itemType = (currentHeader & TYPE_MASK) >> TYPE_SHIFT;
		int itemId = (currentHeader & MAX_ID_VALUE);

		shared_ptr<DataItem> item = shared_ptr<DataItem>();
		switch (itemType)
		{
		case TYPE_BYTE:
			{
				byte dataRead = input->readByte();
				item = shared_ptr<DataItem>( new DataItem(itemType, itemId, dataRead) );
			}
			break;
		case TYPE_SHORT:
			{
				short dataRead = input->readShort();
				item = shared_ptr<DataItem>( new DataItem(itemType, itemId, dataRead) );
			}
			break;
		case TYPE_INT:
			{
				int dataRead = input->readInt();
				item = shared_ptr<DataItem>( new DataItem(itemType, itemId, dataRead) );
			}
			break;
		case TYPE_FLOAT:
			{
				float dataRead = input->readFloat();
				item = shared_ptr<DataItem>( new DataItem(itemType, itemId, dataRead) );

			}
			break;
		case TYPE_STRING:
			item = shared_ptr<DataItem>( new DataItem(itemType, itemId, Packet::readUtf(input, MAX_STRING_DATA_LENGTH)) );
			break;
		case TYPE_ITEMINSTANCE: 
			{
				item = shared_ptr<DataItem>(new DataItem(itemType, itemId, Packet::readItem(input)));
			}
			break;
		default:
			app.DebugPrintf(" ------ garbage data, or early end of stream due to an incomplete packet\n");
			delete result;
			return NULL;
			break;
		}
		result->push_back(item);

		currentHeader = input->readByte();
	}

	return result;
}

/**
* Assigns values from a list of data items.
* 
* @param items
*/

void SynchedEntityData::assignValues(vector<shared_ptr<DataItem> > *items)
{
	AUTO_VAR(itEnd, items->end());
	for (AUTO_VAR(it, items->begin()); it != itEnd; it++)
	{
		shared_ptr<DataItem> item = *it;

		shared_ptr<DataItem> itemFromId = itemsById[item->getId()];
		if( itemFromId != NULL )
		{
			switch(item->getType())
			{
			case TYPE_BYTE:
				itemFromId->setValue(item->getValue_byte());
				break;
			case TYPE_SHORT:
				itemFromId->setValue(item->getValue_short());
				break;
			case TYPE_INT:
				itemFromId->setValue(item->getValue_int());
				break;
			case TYPE_FLOAT:
				itemFromId->setValue(item->getValue_float());
				break;
			case TYPE_STRING:
				itemFromId->setValue(item->getValue_wstring());
				break;
			case TYPE_ITEMINSTANCE:
				itemFromId->setValue(item->getValue_itemInstance());
				break;
			default:
				assert(false); // 4J - not implemented
				break;
			}
		}
	}

	// client-side dirty
	m_isDirty = true;
}

bool SynchedEntityData::isEmpty()
{
	return m_isEmpty;
}

void SynchedEntityData::clearDirty()
{
	m_isDirty = false;
}

int SynchedEntityData::getSizeInBytes()
{
	int size = 1;

	for( int i = 0; i <= MAX_ID_VALUE; i++ )
	{
		shared_ptr<DataItem> dataItem = itemsById[i];
		if(dataItem != NULL)
		{
			size += 1;

			// write value
			switch (dataItem->getType())
			{
			case TYPE_BYTE:
				size += 1;
				break;	
			case TYPE_SHORT:
				size += 2;
				break;
			case TYPE_INT:
				size += 4;
				break;
			case TYPE_FLOAT:
				size += 4;
				break;
			case TYPE_STRING:
				size += (int)dataItem->getValue_wstring().length() + 2; // Estimate, assuming all ascii chars
				break;
			case TYPE_ITEMINSTANCE:
				// short + byte + short
				size += 2 + 1 + 2; // Estimate, assuming all ascii chars
				break;
			default:
				break;
			}
		}
	}
	return size;
}


//////////////////
// DataItem class
/////////////////

SynchedEntityData::DataItem::DataItem(int type, int id, int value) : type( type ), id( id )
{
	this->value_int = value;
	this->dirty = true;
}

SynchedEntityData::DataItem::DataItem(int type, int id, byte value) : type( type ), id( id )
{
	this->value_byte = value;
	this->dirty = true;
}

SynchedEntityData::DataItem::DataItem(int type, int id, short value) : type( type ), id( id )
{
	this->value_short = value;
	this->dirty = true;
}

SynchedEntityData::DataItem::DataItem(int type, int id, float value) : type( type ), id( id )
{
	this->value_float = value;
	this->dirty = true;
}

SynchedEntityData::DataItem::DataItem(int type, int id, const wstring& value) : type( type ), id( id )
{
	this->value_wstring = value;
	this->dirty = true;
}

SynchedEntityData::DataItem::DataItem(int type, int id, shared_ptr<ItemInstance> itemInstance) : type( type ), id( id )
{
	this->value_itemInstance = itemInstance;
	this->dirty = true;
}

int SynchedEntityData::DataItem::getId()
{
	return id;
}

void SynchedEntityData::DataItem::setValue(int value)
{
	this->value_int = value;
}

void SynchedEntityData::DataItem::setValue(byte value)
{
	this->value_byte = value;
}

void SynchedEntityData::DataItem::setValue(short value)
{
	this->value_short = value;
}

void SynchedEntityData::DataItem::setValue(float value)
{
	this->value_float = value;
}

void SynchedEntityData::DataItem::setValue(const wstring& value)
{
	this->value_wstring = value;
}

void SynchedEntityData::DataItem::setValue(shared_ptr<ItemInstance> itemInstance)
{
	this->value_itemInstance = itemInstance;
}

int SynchedEntityData::DataItem::getValue_int()
{
	return value_int;
}

short SynchedEntityData::DataItem::getValue_short()
{
	return value_short;
}

float SynchedEntityData::DataItem::getValue_float()
{
	return value_float;
}

byte SynchedEntityData::DataItem::getValue_byte()
{
	return value_byte;
}

wstring SynchedEntityData::DataItem::getValue_wstring()
{
	return value_wstring;
}

shared_ptr<ItemInstance> SynchedEntityData::DataItem::getValue_itemInstance()
{
	return value_itemInstance;
}

int SynchedEntityData::DataItem::getType()
{
	return type;
}

bool SynchedEntityData::DataItem::isDirty()
{
	return dirty;
}

void SynchedEntityData::DataItem::setDirty(bool dirty)
{
	this->dirty = dirty;
}