enum CellProcessing checkRule(struct Cell *cell, const struct Rule *rule)
{
enum CellProcessing cProc;
unsigned char aliveCounter = 0;
bool satisfy;
bool cellAlive;
cellAlive = isCellAlive(cell);
aliveCounter = getCellRefs(cell);
if (cellAlive) {
satisfy = checkSubrule(rule->survive, aliveCounter);
if (satisfy)
cProc = GOL_SURVIVE;
else
cProc = GOL_KILL;
}
else{
satisfy = checkSubrule(rule->birth, aliveCounter);
if (satisfy)
cProc = GOL_REVIVE;
else
cProc = GOL_KEEP_DEAD;
}
return cProc;
}
int CellGrid::getNumLiveNeighbors( int px, int py )
{
int ln = ( isCellAlive( px, py ) ) ? -1 : 0;
for( int x = px - 1, xc = 0; xc < 3; xc++, x++ )
{
for( int y = py - 1, yc = 0; yc < 3; yc++, y++ )
{
if( isValidPos( x, y ) && isCellAlive( x, y ) )
{
ln++;
}
}
}
return ln;
}
void CellGrid::iterateCell( int x, int y )
{
int ln = getNumLiveNeighbors( x, y );
if( isCellAlive( x, y ) )
{
if( ln < 2 )
setNextCellState( x, y, false );
else if( ln == 2 || ln == 3 )
setNextCellState( x, y, true );
else if( ln > 3 )
setNextCellState( x, y, false );
}
else
{
if( ln == 3 )
setNextCellState( x, y, true );
}
}
void CellGrid::draw( sf::RenderWindow& w, float cellSize, float cellSpacing, sf::Color deadColor, sf::Color aliveColor, sf::Vector2f offset )
{
sf::RectangleShape s;
s.setSize( sf::Vector2f( cellSize, cellSize ) );
for( int i = 0; i < mWidth; i++ )
{
for( int j = 0; j < mHeight; j++ )
{
if( isCellAlive( i, j ) )
s.setFillColor( aliveColor );
else
s.setFillColor( deadColor );
s.setPosition( sf::Vector2f( i * ( cellSize + cellSpacing), j * ( cellSize + cellSpacing) ) + offset );
w.draw( s );
}
}
}
bool CellGrid::isCellAlive( sf::Vector2i v ) const
{
return isCellAlive( v.x, v.y );
}