/// <summary>
/// Checks if this render state equals the specified render state.
/// </summary>
/// <param name="other">The other.</param>
/// <returns></returns>
protected bool Equals(RenderState other)
{
return(Equals(RenderSettings, other.RenderSettings) && TileSet.SequenceEqual(other.TileSet) &&
BackgroundTileMap.SequenceEqual(other.BackgroundTileMap) && WindowTileMap.SequenceEqual(other.WindowTileMap) &&
SpriteOam.SequenceEqual(other.SpriteOam) && SpriteTileSet.SequenceEqual(other.SpriteTileSet));
}
/// <summary>
/// Gets the render states that have changed in comparison to the specified render state.
/// </summary>
/// <param name="other">The other.</param>
/// <returns></returns>
public RenderStateChange GetRenderStateChange(RenderState other)
{
if (other == null)
{
return(RenderStateChange.All);
}
var result = RenderSettings.GetRenderStateChange(other.RenderSettings);
if (!result.HasFlag(RenderStateChange.TileSet) && !TileSet.SequenceEqual(other.TileSet))
{
result |= RenderStateChange.TileSet;
}
if (!result.HasFlag(RenderStateChange.BackgroundTileMap) && !BackgroundTileMap.SequenceEqual(other.BackgroundTileMap))
{
result |= RenderStateChange.BackgroundTileMap;
}
// If window settings haven't changed and the window is not enabled then we're not bothered what happens to the window tile map.
if (!result.HasFlag(RenderStateChange.WindowTileMap) && RenderSettings.WindowEnabled && !WindowTileMap.SequenceEqual(other.WindowTileMap))
{
result |= RenderStateChange.WindowTileMap;
}
if (!result.HasFlag(RenderStateChange.Sprites) && !RenderSettings.SpritesEnabled)
{
return(result);
}
// If sprite settings haven't changed and sprite are not enabled then we're not bothered what happens to sprite OAM.
if (!result.HasFlag(RenderStateChange.SpriteOam) && !SpriteOam.SequenceEqual(other.SpriteOam))
{
result |= RenderStateChange.SpriteOam;
}
if (!result.HasFlag(RenderStateChange.SpriteTileSet) && !SpriteTileSet.SequenceEqual(other.SpriteTileSet))
{
result |= RenderStateChange.SpriteTileSet;
}
return(result);
}