/// <summary>
/// Painting on TerrainTypeLayer
/// </summary>
/// <param name="position">Brush position</param>
/// <param name="brushSize"></param>
/// <param name="layer">Layer index</param>
private void Paint(Vector2 positionCenter, float brushSize, TerrainTypeLayerSettings layer)
{
Rect rect = Rect.MinMaxRect(
positionCenter.x - brushSize, positionCenter.y - brushSize,
positionCenter.x + brushSize, positionCenter.y + brushSize
);
// if (RectUtils.IsCrossed(new Rect(Vector2.zero, TerrainTypeSize), rect))
// {
var crossRect = RectUtils.Cross(new Rect(Vector2.zero, TerrainTypeSize), rect);
int size = (int)brushSize;
// Vector2 positionCenterLocal = positionCenter - crossRect.position;
// Vector2 positionCenterLocal = positionCenter - crossRect.position;
TerrainTypeTexture.SetPixels(
Mathf.RoundToInt(crossRect.x), Mathf.RoundToInt(crossRect.y),
Mathf.RoundToInt(crossRect.width), Mathf.RoundToInt(crossRect.height),
TerrainTypeTexture.GetPixels(
Mathf.RoundToInt(crossRect.x), Mathf.RoundToInt(crossRect.y),
Mathf.RoundToInt(crossRect.width), Mathf.RoundToInt(crossRect.height))
.Select((color, i) =>
{
int x = i % Mathf.RoundToInt(crossRect.width) + Mathf.RoundToInt(crossRect.xMin) -
Mathf.RoundToInt(positionCenter.x);
int y = i / Mathf.RoundToInt(crossRect.width) + Mathf.RoundToInt(crossRect.yMin) -
Mathf.RoundToInt(positionCenter.y);
return((x * x + y * y > size * size) ? color : layer.color);
}
)
.ToArray()
);
for (int j = (int)crossRect.yMin; j < (int)crossRect.yMax; j++)
{
for (int i = (int)crossRect.xMin; i < (int)crossRect.xMax; i++)
{
int x = (int)(i - positionCenter.x);
int y = (int)(j - positionCenter.y);
if (x * x + y * y <= size * size)
{
TerrainTypeData2D[i, j] = layer.index;
}
}
}
TerrainTypeTexture.Apply();
}
private Color[] GetToUndoTex()
{
return(TerrainTypeTexture.GetPixels());
}