/// <summary>
/// Creates a Fog Of War sprite for the given flags.
/// </summary>
/// <param name="flags">The FOW-flags.</param>
/// <param name="spritePaletteImg">The image of the sprite palette.</param>
/// <returns>The created Fog Of War sprite or null if no sprite needs to be created for the given flags.</returns>
private UISprite CreateFowSprite(FOWTileFlagsEnum flags, UISprite spritePaletteImg)
{
if (flags == FOWTileFlagsEnum.None)
{
return(null);
}
/// Create a new empty sprite and open a render context to it.
UISprite retSprite =
UIRoot.Instance.GraphicsPlatform.SpriteManager.CreateSprite(
this.spritePalette.TransparentColor,
this.spritePalette.GetSection(this.spriteIndices[FOWTileFlagsEnum.Current]).Size,
UIWorkspace.Instance.PixelScaling);
IUIRenderContext renderCtx = UIRoot.Instance.GraphicsPlatform.SpriteManager.CreateRenderContext(retSprite);
/// Draw the sprites from the sprite palette to the created sprite according to the incoming flags.
foreach (FOWTileFlagsEnum flag in this.spriteIndices.Keys)
{
if (flags.HasFlag(flag))
{
this.CombineFowFlag(flag, spritePaletteImg, renderCtx);
}
}
/// Close the render context of the created sprite and set its transparent color.
UIRoot.Instance.GraphicsPlatform.SpriteManager.CloseRenderContext(retSprite);
retSprite.TransparentColor = this.spritePalette.TransparentColor;
retSprite.Upload();
return(retSprite);
}
/// <summary>
/// Simplifies the given FOW-flags.
/// </summary>
/// <param name="originalFlags">The FOW-flags to simplify.</param>
/// <returns>The simplified FOW-flags.</returns>
private FOWTileFlagsEnum SimplifyFlags(FOWTileFlagsEnum originalFlags)
{
if (originalFlags == FOWTileFlagsEnum.None)
{
return(FOWTileFlagsEnum.None);
}
if (originalFlags.HasFlag(FOWTileFlagsEnum.Current))
{
return(FOWTileFlagsEnum.Current);
}
/// Remove the north-east flag if necessary.
if (originalFlags.HasFlag(FOWTileFlagsEnum.NorthEast) && (originalFlags.HasFlag(FOWTileFlagsEnum.North) || originalFlags.HasFlag(FOWTileFlagsEnum.East)))
{
originalFlags &= ~FOWTileFlagsEnum.NorthEast;
}
/// Remove the south-east flag if necessary.
if (originalFlags.HasFlag(FOWTileFlagsEnum.SouthEast) && (originalFlags.HasFlag(FOWTileFlagsEnum.East) || originalFlags.HasFlag(FOWTileFlagsEnum.South)))
{
originalFlags &= ~FOWTileFlagsEnum.SouthEast;
}
/// Remove the south-west flag if necessary.
if (originalFlags.HasFlag(FOWTileFlagsEnum.SouthWest) && (originalFlags.HasFlag(FOWTileFlagsEnum.West) || originalFlags.HasFlag(FOWTileFlagsEnum.South)))
{
originalFlags &= ~FOWTileFlagsEnum.SouthWest;
}
/// Remove the north-west flag if necessary.
if (originalFlags.HasFlag(FOWTileFlagsEnum.NorthWest) && (originalFlags.HasFlag(FOWTileFlagsEnum.North) || originalFlags.HasFlag(FOWTileFlagsEnum.West)))
{
originalFlags &= ~FOWTileFlagsEnum.NorthWest;
}
return(originalFlags);
}