static void CopyQuadrantToAtlas(CopyTextureToAtlasData data, CopyQuadrantData quadrant)
{
var offset = new Vector2Int(data.X + k_repeatedPixels, data.Y + k_repeatedPixels);
var halfSize = new Vector2Int(data.Texture.width / 2, data.Texture.height / 2);
var readPos = new Vector2Int(halfSize.x * quadrant.X, halfSize.y * quadrant.Y);
var pixels = data.Texture.GetPixels(readPos.x, readPos.y, halfSize.x, halfSize.y);
GetRepeatedReadWritePositions(data, quadrant, readPos, offset, halfSize, out var rp);
var pixelsRepeatedX = data.Texture.GetPixels(rp.RepeatedXRead, readPos.y, k_repeatedPixels, halfSize.y);
var pixelsRepeatedY = data.Texture.GetPixels(readPos.x, rp.RepeatedYRead, halfSize.x, k_repeatedPixels);
var pixelsRepeatedXY = data.Texture.GetPixels(rp.RepeatedXRead, rp.RepeatedYRead, k_repeatedPixels, k_repeatedPixels);
data.Atlas.SetPixels(offset.x + readPos.x, offset.y + readPos.y, halfSize.x, halfSize.y, pixels);
data.Atlas.SetPixels(rp.RepeatedXWrite, offset.y + readPos.y, k_repeatedPixels, halfSize.y, pixelsRepeatedX);
data.Atlas.SetPixels(offset.x + readPos.x, rp.RepeatedYWrite, halfSize.x, k_repeatedPixels, pixelsRepeatedY);
data.Atlas.SetPixels(rp.RepeatedXWrite, rp.RepeatedYWrite, k_repeatedPixels, k_repeatedPixels, pixelsRepeatedXY);
}
static void GetRepeatedReadWritePositions(CopyTextureToAtlasData data, CopyQuadrantData quad,
Vector2Int readPos, Vector2Int offset, Vector2Int halfSize, out RepeatedPositions repeatPos)
{
repeatPos.RepeatedXRead = readPos.x;
repeatPos.RepeatedYRead = readPos.y;
repeatPos.RepeatedXWrite = offset.x + readPos.x + (data.Texture.width * quad.CopyDirX);
repeatPos.RepeatedYWrite = offset.y + readPos.y + (data.Texture.height * quad.CopyDirY);
if (quad.CopyDirX == -1)
{
repeatPos.RepeatedXWrite += (halfSize.x - k_repeatedPixels);
repeatPos.RepeatedXRead += (halfSize.x - k_repeatedPixels);
}
// ReSharper disable once InvertIf
if (quad.CopyDirY == -1)
{
repeatPos.RepeatedYWrite += (halfSize.y - k_repeatedPixels);
repeatPos.RepeatedYRead += (halfSize.y - k_repeatedPixels);
}
}
