public HouseDecorator(int gridSize)
{
_lightsArrays = new ChristmasLight[gridSize][];
for (int i = 0; i < gridSize; i++)
{
_lightsArrays[i] = new ChristmasLight[gridSize];
//for (int j = 0; j < _lightsArrays.Length; j++)
//{
// _lightsArrays[i][j] = new ChristmasLight();
//}
}
}
public int ChangeBrightness(List <string> instructions)
{
var lightsOn = 0;
foreach (var instruction in instructions)
{
var instructionArray = instruction.Split(' ');
var coordinates = GetLightCoordinates(instructionArray);
for (int i = coordinates["x_start"]; i <= coordinates["x_end"]; i++)
{
for (int j = coordinates["y_start"]; j <= coordinates["y_end"]; j++)
{
if (_lightsArrays[i][j] == null)
{
_lightsArrays[i][j] = new ChristmasLight();
}
if (instructionArray.Contains("on"))
{
_lightsArrays[i][j].Brightness++;
}
else if (instructionArray.Contains("off"))
{
_lightsArrays[i][j].Brightness = _lightsArrays[i][j].Brightness == 0
? 0
: _lightsArrays[i][j].Brightness - 1;
}
else if (instructionArray.Contains("toggle"))
{
_lightsArrays[i][j].Brightness += 2;
}
}
}
}
foreach (var lightsArray in _lightsArrays)
{
lightsOn += lightsArray.Where(l => l != null).Sum(light => light.Brightness);
}
return(lightsOn);
}