/// <summary>
/// Constructs a JTexture from a parent texture
/// </summary>
/// <param name="parent"></param>
/// <param name="topLeftX"></param>
/// <param name="topLeftY"></param>
/// <param name="width"></param>
/// <param name="height"></param>
public JTexture(JTexture parent, float topLeftX, float topLeftY, float width, float height, bool alpha)
{
if (topLeftX < 0 || topLeftY < 0 || topLeftX + width > parent.w || topLeftY + height > parent.h)
{
throw new ArgumentException("Attempted to define a sub JTexture outside the bounds of the parent");
}
isSubTexture = true;
_GLTexID = parent.GLTexID;
_hasAlpha = parent.hasAlpha;
useAlpha = alpha;
_w = width;
_h = height;
float parentTextureW = parent.topRight.X - parent.bottomLeft.X;
float parentTextureH = parent.topRight.Y - parent.bottomLeft.Y;
bottomLeft.X = parent.bottomLeft.X + (float)topLeftX * parentTextureW / parent.w;
topRight.X = parent.bottomLeft.X + (float)(topLeftX + width) * parentTextureW / parent.w;
bottomLeft.Y = parent.bottomLeft.Y + (1 - (float)(topLeftY + height) / parent.h) * parentTextureH;
topRight.Y = parent.bottomLeft.Y + (1 - (float)topLeftY / parent.h) * parentTextureH;
}
/// <summary>
/// Constructs a JTexture from a parent texture
/// </summary>
/// <param name="parent"></param>
/// <param name="topLeftX"></param>
/// <param name="topLeftY"></param>
/// <param name="width"></param>
/// <param name="height"></param>
public JTexture(JTexture parent, float topLeftX, float topLeftY, float width, float height, bool alpha)
{
if (topLeftX < 0 || topLeftY < 0 || topLeftX + width > parent.w || topLeftY + height > parent.h)
{
throw new ArgumentException("Attempted to define a sub JTexture outside the bounds of the parent");
}
isSubTexture = true;
_GLTexID = parent.GLTexID;
_hasAlpha = parent.hasAlpha;
useAlpha = alpha;
_w = width;
_h = height;
float parentTextureW = parent.topRight.X - parent.bottomLeft.X;
float parentTextureH = parent.topRight.Y - parent.bottomLeft.Y;
bottomLeft.X = parent.bottomLeft.X + (float)topLeftX * parentTextureW / parent.w;
topRight.X = parent.bottomLeft.X + (float)(topLeftX + width) * parentTextureW / parent.w;
bottomLeft.Y = parent.bottomLeft.Y + (1 - (float)(topLeftY + height) / parent.h) * parentTextureH;
topRight.Y = parent.bottomLeft.Y + (1 - (float)topLeftY / parent.h) * parentTextureH;
}
public void Remove(JTexture textureToRemove)
{
textureList.Remove(textureToRemove);
textureToRemove.Free();
}
public JTexture Add(JTexture texture)
{
textureList.Add(texture);
return texture;
}
public void Remove(JTexture textureToRemove)
{
textureList.Remove(textureToRemove);
textureToRemove.Free();
}
public JTexture Add(JTexture texture)
{
textureList.Add(texture);
return(texture);
}
