/// <summary>
/// Function to draw the camera icon.
/// </summary>
public void Draw()
{
var position = new Vector3(-_position.X, -_position.Y, 0);
Vector3 iconPosition;
Unproject(ref position, out iconPosition); // Convert to screen space.
// Update the position to be projected into the current camera space.
if (Gorgon2D.Camera != this)
{
Vector3.Negate(ref iconPosition, out iconPosition);
iconPosition.Z = (Gorgon2D.Camera.MaximumDepth - Gorgon2D.Camera.MinimumDepth) / Gorgon2D.Camera.MinimumDepth;
Gorgon2D.Camera.Project(ref iconPosition, out iconPosition, false);
// Now update that position to reflect in screen space relative to our current camera.
// We do this without the view transform because we only want to undo the projection and
// not the camera transformation.
Gorgon2D.Camera.Unproject(ref iconPosition, out iconPosition);
}
// Project back to the default camera.
iconPosition = Gorgon2D.DefaultCamera.Project(iconPosition);
// ReSharper disable CompareOfFloatsByEqualityOperator
if ((Gorgon2D.DefaultCamera.Zoom.X != 1.0f) ||
(Gorgon2D.DefaultCamera.Zoom.Y != 1.0f))
{
_cameraIcon.Scale = new Vector2(1.0f / Gorgon2D.DefaultCamera.Zoom.X,
1.0f / Gorgon2D.DefaultCamera.Zoom.Y);
}
// ReSharper restore CompareOfFloatsByEqualityOperator
// Highlight current camera.
_cameraIcon.Color = Gorgon2D.Camera == this ? Color.FromArgb(204, Color.Green) : Color.FromArgb(204, Color.White);
_cameraIcon.Position = (Vector2)iconPosition;
_cameraIcon.Angle = -Gorgon2D.DefaultCamera.Angle;
// Draw the icon in our camera space, otherwise it won't look right.
var prevCamera = Gorgon2D.Camera;
if (prevCamera != Gorgon2D.DefaultCamera)
{
Gorgon2D.Camera = null;
}
_cameraIcon.Draw();
if (prevCamera == Gorgon2D.DefaultCamera)
{
return;
}
Gorgon2D.Camera = prevCamera;
}
/// <summary>
/// Function to render the scene and draw the Gorgon logo at the bottom-right of the screen.
/// </summary>
private void RenderWithLogo()
{
I2DCamera camera = _camera;
GorgonViewport?previousViewport = _viewPort;
Rectangle? previousClip = _clip;
// Reset any view/projection/clip/viewport.
// This will force a flush of the pipeline before drawing the logo.
// If none of these values have changed, the the flush will be
// peformed when we draw the logo (due to a texture switch).
if (_camera != null)
{
Camera = null;
}
if (_viewPort != null)
{
Viewport = null;
}
if (_clip != null)
{
ClipRegion = null;
}
_logoSprite.Position = new Vector2(_currentTarget.Width, _currentTarget.Height);
_logoSprite.Draw();
// This flush will force the logo to appear.
Flush();
// Restore the active camera, viewport and clipping region.
if (camera != null)
{
Camera = camera;
}
if (previousViewport != null)
{
Viewport = previousViewport;
}
if (previousClip != null)
{
ClipRegion = previousClip;
}
}
/// <summary>
/// Function to render a pass.
/// </summary>
/// <param name="pass">Pass that is to be rendered.</param>
protected override void OnRenderPass(GorgonEffectPass pass)
{
Gorgon2D.Target = _hTarget;
// Render horizontal pass.
_hTarget.Clear(GorgonColor.Transparent);
_blurBuffer.Update(_xOffsets);
// Render the scene.
pass.RenderAction(pass);
// Render vertical pass.
Gorgon2D.Target = _vTarget;
_blurBuffer.Update(_yOffsets);
_blurSprite.Draw();
}
/// <summary>
/// Function called when the effect is being initialized.
/// </summary>
/// <remarks>
/// Use this method to set up the effect upon its creation. For example, this method could be used to create the required shaders for the effect.
/// </remarks>
protected override void OnInitialize()
{
base.OnInitialize();
Passes[1].PixelShader = Graphics.ImmediateContext.Shaders.CreateShader <GorgonPixelShader>("Effect.2D.DisplacementDecoder.PS", "GorgonPixelShaderDisplacementDecoder", "#GorgonInclude \"Gorgon2DShaders\"");
_displacementBuffer = Graphics.ImmediateContext.Buffers.CreateConstantBuffer("Gorgon2DDisplacementEffect Constant Buffer",
new GorgonConstantBufferSettings
{
SizeInBytes = 16
});
_displacementSprite = Gorgon2D.Renderables.CreateSprite("Gorgon2DDisplacementEffect Sprite", new GorgonSpriteSettings
{
Size = new Vector2(1)
});
_displacementSprite.BlendingMode = BlendingMode.None;
_displacementSprite.SmoothingMode = SmoothingMode.Smooth;
// Set the drawing for rendering the displacement map.
Passes[1].RenderAction = pass => _displacementSprite.Draw();
}
/// <summary>
/// Function to draw a filled rectangle.
/// </summary>
private void DrawFilled()
{
_filled.AlphaTestValues = AlphaTestValues;
_filled.Anchor = Anchor;
_filled.Angle = Angle;
_filled.SetCornerColor(RectangleCorner.UpperLeft, _colors[0]);
_filled.SetCornerColor(RectangleCorner.UpperRight, _colors[1]);
_filled.SetCornerColor(RectangleCorner.LowerLeft, _colors[2]);
_filled.SetCornerColor(RectangleCorner.LowerRight, _colors[3]);
_filled.CullingMode = CullingMode;
_filled.Depth = Depth;
_filled.Position = Rectangle.Location;
_filled.Size = Rectangle.Size;
_filled.Texture = Texture;
_filled.TextureRegion = TextureRegion;
_filled.Blending = Blending;
_filled.DepthStencil = DepthStencil;
_filled.TextureSampler = TextureSampler;
_filled.Draw();
}
