| public static SameColor ( Color a, Color b ) : bool | ||
| a | Color | |
| b | Color | |
| return | bool | |
public void ReplaceColor(Sprite sprite, Color from, Color to)
{
Texture2D texture = sprite.texture;
Rect textureRect = sprite.textureRect;
int minX = (int)textureRect.xMin;
int maxX = (int)textureRect.xMax;
int minY = (int)textureRect.yMin;
int maxY = (int)textureRect.yMax;
int index = 0;
for (int y = minY; y < maxY; y++)
{
for (int x = minX; x < maxX; x++)
{
if (Utility.SameColor(_mSnapshot[index++], from))
{
texture.SetPixel(x, y, to);
}
}
}
texture.Apply();
SceneView.RepaintAll();
}
private static void FloodFill(Color oldColor, Color color, Texture2D tex, int fX, int fY, int minX, int minY,
int maxX, int maxY)
{
if (Utility.SameColor(oldColor, color)) //just in case.
{
return;
}
int width = maxX - minX;
int height = maxY - minY;
Color[] colors = tex.GetPixels(minX, minY, width, height); //store the colors into a temporary buffer
Stack <Texel> stack = new Stack <Texel> (); //non-recursive stack
stack.Push(new Texel(fX, fY)); //original target
while (stack.Count > 0)
{
Texel n = stack.Pop();
int index = (n.Y - minY) * width + (n.X - minX); //index into temporary buffer
bool pixelIsInTheSprite = n.X >= minX && n.X < maxX && n.Y >= minY && n.Y < maxY;
if (pixelIsInTheSprite)
{
bool colorMatches = Utility.SameColor(colors[index], oldColor);
if (colorMatches)
{
colors[index] = color;
stack.Push(n + new Texel(-1, 0)); //
stack.Push(n + new Texel(1, 0)); // add to stack in all 4 directions
stack.Push(n + new Texel(0, 1)); //
stack.Push(n + new Texel(0, -1)); //
}
}
}
tex.SetPixels(minX, minY, width, height, colors); //put the temporary buffer back into the texture
}
