//initalize the backdrop
public void Init()
{
pixels = new PixelBackdrop[sizeX, sizeY];
//loop though the entire pixel array and assign the corralating pixels to it, then initalize them
for (int idxY = 0; idxY <= sizeY - 1; idxY++)
{
for (int idxX = 0; idxX <= sizeX - 1; idxX++)
{
pixels[idxX, idxY] = gameObject.transform.GetChild(idxY).transform.GetChild(idxX).GetComponent <PixelBackdrop>();
}
}
for (int idxY = 0; idxY <= sizeY - 1; idxY++)
{
for (int idxX = 0; idxX <= sizeX - 1; idxX++)
{
PixelBackdrop.Neighbors currentNeighbors = GetPixelNeighbors(idxX, idxY);
pixels[idxX, idxY].Init(currentNeighbors);
}
}
InitGameOfLife();
initalized = true;
}
//locates and returns all pixel neighbors, returns null if there are no neighbors around the pixel
public PixelBackdrop.Neighbors GetPixelNeighbors(int xIndex, int yIndex)
{
//check each side and corner of a pixel to see if there should be a pixel, then assign it. else assign null
PixelBackdrop.Neighbors neighbors = new PixelBackdrop.Neighbors();
neighbors.top = IsThereAPixelAtIndex(xIndex, yIndex - 1) ? pixels[xIndex, yIndex - 1] : null;
neighbors.topRight = IsThereAPixelAtIndex(xIndex + 1, yIndex - 1) ? pixels[xIndex + 1, yIndex - 1] : null;
neighbors.right = IsThereAPixelAtIndex(xIndex + 1, yIndex) ? pixels[xIndex + 1, yIndex] : null;
neighbors.bottomRight = IsThereAPixelAtIndex(xIndex + 1, yIndex + 1) ? pixels[xIndex + 1, yIndex + 1] : null;
neighbors.bottom = IsThereAPixelAtIndex(xIndex, yIndex + 1) ? pixels[xIndex, yIndex + 1] : null;
neighbors.bottomLeft = IsThereAPixelAtIndex(xIndex - 1, yIndex + 1) ? pixels[xIndex - 1, yIndex + 1] : null;
neighbors.left = IsThereAPixelAtIndex(xIndex - 1, yIndex) ? pixels[xIndex - 1, yIndex] : null;
neighbors.topLeft = IsThereAPixelAtIndex(xIndex - 1, yIndex - 1) ? pixels[xIndex - 1, yIndex - 1] : null;
return(neighbors);
}
