private void ResetScene(bool loadContent)
{
switch (currentScene)
{
case SceneType.Cube:
this.scene = new SingleCubeScene(this.graphics.GraphicsDevice, rotationOrigin, 20);
break;
case SceneType.ArrowField:
this.scene = new ArrowFieldScene(this.graphics.GraphicsDevice, rotationOrigin);
break;
default:
throw new Exception(string.Format("Unsupported scene type {0}", currentScene));
}
//Create camera
var cameraPosition = scene.RecommandedSettings.CameraPosition;
var cameraUp = Vector3.Normalize((rotationOrigin - cameraPosition).SafeCross(Vector3.Right, Vector3.Up));
camera = new Camera(graphics.GraphicsDevice, "MainCamera", cameraPosition, rotationOrigin, cameraUp, graphics.GraphicsDevice.Viewport.AspectRatio, 0.05f, 1E+5f);
//Create help/debug text
var screenText = new ScreenText(graphics.GraphicsDevice, "MainScreenText", new Vector3(1.0f, 1.0f, 0), camera);
screenText.AdditionalHelpText = "D -> Next Debug Level\nS -> Cycle through scenes";
//Create controls
cameraControls = new ArcBallControls(camera, rotationOrigin, scene.RecommandedSettings.ArcBallOriginLocked, graphics.GraphicsDevice.Viewport.Width, graphics.GraphicsDevice.Viewport.Height);
this.scene.AddObject(camera);
this.scene.AddObject(screenText);
if (loadContent)
this.scene.LoadContent(this.Content);
}
private void ResetCamera()
{
if (camera == null || camera.Position != cameraStartingPos)
camera = new Camera(cameraStartingPos, Vector3.Zero, GraphicsDevice.Viewport.AspectRatio, float.Epsilon, float.MaxValue);
}
public void DrawDebugPoints(Scene scene, Camera camera, Matrix world, Matrix view, Matrix projection, float viewPortWidth, float viewPortHeight)
{
this.Height = (int)(viewPortHeight * 1.2);
this.Width = (int) (viewPortWidth * 1.2);
graphicsContext.Clear(Color.CornflowerBlue);
var writeToCaptureFile = captureStreamWriter != null && UpdateLastCameraVectors(camera);
StringBuilder line = null;
if (writeToCaptureFile)
{
line = new StringBuilder();
line.Append(camera.Position.X);
line.Append("\t");
line.Append(camera.Position.Y);
line.Append("\t");
line.Append(camera.Position.Z);
line.Append("\t");
line.Append(camera.Up.X);
line.Append("\t");
line.Append(camera.Up.Y);
line.Append("\t");
line.Append(camera.Up.Z);
line.Append("\t");
line.Append(camera.Forward.X);
line.Append("\t");
line.Append(camera.Forward.Y);
line.Append("\t");
line.Append(camera.Forward.Z);
}
foreach (var object3D in scene.Objects)
{
foreach (var debugVertex in object3D.GetDebugVertices())
{
Matrix matrix = Matrix.Multiply(Matrix.Multiply(world, view), projection);
Vector3 vector = Vector3.Transform(debugVertex.Position, matrix);
float a = (((debugVertex.Position.X * matrix.M14) + (debugVertex.Position.Y * matrix.M24)) + (debugVertex.Position.Z * matrix.M34)) + matrix.M44;
if (!XnaExtentions.WithinEpsilon(a, 1f))
vector = (Vector3)(vector / a);
var x = (((vector.X + 1f)*0.5f)*this.Width);
var y = (((-vector.Y + 1f)*0.5f)*this.Height);
//var vertexColor = debugVertex.Color.ToSystemDrawingColor();
//if (vertexColor == Color.CornflowerBlue)
var vertexColor = Color.Red;
graphicsContext.FillEllipse(new SolidBrush(vertexColor), new RectangleF(x, y, 8, 8));
if (writeToCaptureFile)
{
line.Append("\t");
line.Append(x);
line.Append("\t");
line.Append(y);
}
}
}
if (writeToCaptureFile)
{
captureStreamWriter.WriteLine(line);
}
}
public ScreenText(GraphicsDevice graphicsDevice, string name, Vector3 position, Camera camera)
: base(graphicsDevice, name, position, Vector3.Zero, Vector3.Up)
{
this.Camera = camera;
lastDebugLevel = null;
}
private bool UpdateLastCameraVectors(Camera camera)
{
if (camera.Position != lastPosition || camera.Up != lastUp || camera.Forward != lastForward)
{
lastPosition = camera.Position;
lastUp = camera.Up;
lastForward = camera.Forward;
return true;
}
return false;
}