/// <summary>
/// Creates a screenshot of the game and saves it to a file.
/// </summary>
/// <param name="filename">The file to save the screenshot to</param>
/// <param name="resolution">The width/height of the image</param>
/// <returns>True if the screenshot could be taken, false otherwise</returns>
public bool TakeScreenshot(string filename, Point resolution)
{
try
{
using (
RenderTarget2D renderTarget = new RenderTarget2D(GraphicsDevice, resolution.X, resolution.Y, false,
SurfaceFormat.Color, DepthFormat.Depth24))
{
var frustum = Camera.GetDrawFrustum();
var renderables = EnumerateIntersectingObjects(frustum)
.Where(r => r.IsVisible && !ChunkManager.IsAboveCullPlane(r.GetBoundingBox()));
var oldProjection = Camera.ProjectionMatrix;
Matrix projectionMatrix = Matrix.CreatePerspectiveFieldOfView(Camera.FOV, ((float)resolution.X) / resolution.Y, Camera.NearPlane, Camera.FarPlane);
Camera.ProjectionMatrix = projectionMatrix;
GraphicsDevice.SetRenderTarget(renderTarget);
DrawSky(new DwarfTime(), Camera.ViewMatrix, 1.0f, Color.CornflowerBlue);
Draw3DThings(new DwarfTime(), DefaultShader, Camera.ViewMatrix);
DefaultShader.View = Camera.ViewMatrix;
DefaultShader.Projection = Camera.ProjectionMatrix;
ComponentRenderer.Render(renderables, new DwarfTime(), ChunkManager, Camera,
DwarfGame.SpriteBatch, GraphicsDevice, DefaultShader,
ComponentRenderer.WaterRenderType.None, 0);
InstanceRenderer.Flush(GraphicsDevice, DefaultShader, Camera,
InstanceRenderMode.Normal);
GraphicsDevice.SetRenderTarget(null);
renderTarget.SaveAsPng(new FileStream(filename, FileMode.Create), resolution.X, resolution.Y);
GraphicsDevice.Textures[0] = null;
GraphicsDevice.Indices = null;
GraphicsDevice.SetVertexBuffer(null);
Camera.ProjectionMatrix = oldProjection;
}
}
catch (IOException e)
{
Console.Error.WriteLine(e.Message);
return(false);
}
return(true);
}
public static IEnumerable <IRenderableComponent> EnumerateVisibleRenderables(
IEnumerable <IRenderableComponent> Renderables,
ChunkManager chunks,
Camera Camera)
{
var frustrum = Camera.GetFrustrum();
// Todo: Use an octtree for this.
var visibleComponents = Renderables.Where(r =>
{
if (!r.IsVisible)
{
return(false);
}
if (chunks.IsAboveCullPlane(r.GetBoundingBox()))
{
return(false);
}
if (r.FrustumCull)
{
if ((r.GlobalTransform.Translation - Camera.Position).LengthSquared() >=
chunks.DrawDistanceSquared)
{
return(false);
}
if (!r.GetBoundingBox().Intersects(frustrum))
{
return(false);
}
}
return(true);
}).ToList();
return(visibleComponents);
}
