// Checks if the game field is playable
// if the tiles on the two given positions are swapped
const bool GameField::isPlayable(const FieldPos& pos1, const FieldPos& pos2) const
{
bool playable = false;
// check if two fields are inside array boundaries
if ( pos1.x() < FIELD_WIDTH && pos1.y() < FIELD_HEIGHT &&
pos2.x() < FIELD_WIDTH && pos2.y() < FIELD_HEIGHT )
{
// check if next to each other
if ( ( (pos1.x() == pos2.x()) && ((pos1.y() == pos2.y()+1 || pos1.y()+1 == pos2.y())) ) ||
( (pos1.y() == pos2.y()) && ((pos1.x() == pos2.x()+1 || pos1.x()+1 == pos2.x())) ) )
{
// copy game field
GameField tempField(*this);
// swap tiles
tempField.getTile(pos1).swap( tempField.getTile(pos2) );
// std::cout << "GameField::isPlayable() swap "
// << pos1.x() << " "
// << pos1.y() << " with "
// << pos2.x() << " "
// << pos2.y() << std::endl;
// TODO: it would be a little bit faster if we only check
// the swapped columns/rows
// check if there are same tiles to remove
ScoredTileArray tArray;
if ( tempField.findSameTiles(tArray) )
{
playable = true;
}
}
else
{
std::cout << "GameField::isPlayable() error: tiles not next to each other"
<< std::endl;
}
}
else
{
std::cout << "GameField::isPlayable() error: pos out of boundaries"
<< std::endl;
}
return playable;
}
InertialDataFields InertialParser::parseFields(InertialPacket& packet)
{
InertialDataFields result;
uint8 fieldDescriptor;
uint16 fieldType;
uint32 fieldLen;
uint8 descriptorSet = packet.descriptorSet();
//create a DataBuffer to make parsing easier
DataBuffer payloadData(packet.payload());
while(payloadData.moreToRead())
{
Bytes fieldBytes;
//read the field length byte
fieldLen = payloadData.read_uint8();
//read the field descriptor byte
fieldDescriptor = payloadData.read_uint8();
//read all the bytes for the current field (up to the field length)
for(uint32 itr = 0; itr < fieldLen - 2; itr++)
{
//add the field bytes to a container
fieldBytes.push_back(payloadData.read_uint8());
}
fieldType = Utils::make_uint16(descriptorSet, fieldDescriptor);
//add the field to the m_dataFields vector
InertialDataField tempField(fieldType, fieldBytes);
result.push_back(tempField);
}
return result;
}
