private void UpdateTexturePadding()
{
tileSets[path] = TileSet.Load(path); // DELETE ME
TileSet ts = tileSet;
Texture2D texture = TileMapEditor.GetTileSetTexture(ts, path);
string texturePath = AssetDatabase.GetAssetPath(texture);
TextureImporter importer = (TextureImporter)TextureImporter.GetAtPath(texturePath);
importer.isReadable = true;
AssetDatabase.ImportAsset(texturePath, ImportAssetOptions.ForceUpdate);
int inWidth = ts.tileWidth * ts.columns + ts.margin * 2 + ts.spacing * (ts.columns - 1);
int outWidth = ts.tileWidth * ts.columns + margin * 2 + spacing * (ts.columns - 1);
int outHeight = ts.tileHeight * ts.rows + margin * 2 + spacing * (ts.rows - 1);
Color[] inColors = texture.GetPixels();
Color[] outColors = new Color[outWidth * outHeight];
for (int column = 0; column < ts.columns; column++)
{
for (int row = 0; row < ts.rows; row++)
{
for (int i = 0; i < ts.tileWidth; i++)
{
for (int j = 0; j < ts.tileHeight; j++)
{
int inX = i + (ts.tileWidth + ts.spacing) * column + ts.margin;
int inY = j + (ts.tileHeight + ts.spacing) * row + ts.margin;
Color c = inColors[inY * inWidth + inX];
int left = (i == 0) ? ((column == 0) ? -margin : -spacing / 2) : 0;
int right = (i == ts.tileWidth - 1) ? ((column == ts.columns - 1) ? margin : spacing / 2) : 0;
int down = (j == 0) ? ((row == 0) ? -margin : -spacing / 2) : 0;
int up = (j == ts.tileHeight - 1) ? ((row == ts.rows - 1) ? margin : spacing / 2) : 0;
for (int x = i + left; x <= i + right; x++)
{
for (int y = j + down; y <= j + up; y++)
{
int outX = x + (ts.tileWidth + spacing) * column + margin;
int outY = y + (ts.tileHeight + spacing) * row + margin;
outColors[outY * outWidth + outX] = c;
}
}
}
}
}
}
Texture2D t = new Texture2D(outWidth, outHeight);
t.SetPixels(outColors);
byte[] bytes = t.EncodeToPNG();
File.WriteAllBytes(texturePath, bytes);
AssetDatabase.ImportAsset(texturePath, ImportAssetOptions.ForceUpdate);
tileSet.margin = margin;
tileSet.spacing = spacing;
tileSet.image.width = outWidth;
tileSet.image.height = outHeight;
tileSet.Save(path);
}
private void TileSetSpriteCollectionField(TileSet tileSet)
{
}
