/// <summary>
/// Function to draw an unfilled rectangle.
/// </summary>
private void DrawUnfilled()
{
TransformVertices();
for (int i = 0; i < _corners.Length; i++)
{
_corners[i].X = (float)System.Math.Ceiling(_corners[i].X);
_corners[i].Y = (float)System.Math.Ceiling(_corners[i].Y) + 1;
}
// Set global line state.
_line.AlphaTestValues = AlphaTestValues;
_line.Texture = Texture;
_line.LineThickness = LineThickness;
_line.CullingMode = CullingMode;
_line.Depth = Depth;
_line.Blending = Blending;
_line.DepthStencil = DepthStencil;
_line.TextureSampler = TextureSampler;
_line.TextureStart = TextureRegion.Location;
_line.TextureEnd = new Vector2(TextureRegion.Right, TextureRegion.Top);
_line.StartColor = _colors[0];
_line.EndColor = _colors[1];
_line.StartPoint = new Vector2(_corners[0].X, _corners[0].Y);
_line.EndPoint = new Vector2(_corners[1].X + 1.0f, _corners[1].Y);
_line.Draw();
_line.TextureStart = new Vector2(TextureRegion.Right, TextureRegion.Top);
_line.TextureEnd = new Vector2(TextureRegion.Right, TextureRegion.Bottom);
_line.StartColor = _colors[1];
_line.EndColor = _colors[3];
_line.StartPoint = new Vector2(_corners[1].X + 1, _corners[1].Y);
_line.EndPoint = new Vector2(_corners[2].X + 1, _corners[2].Y);
_line.Draw();
_line.TextureStart = new Vector2(TextureRegion.Right, TextureRegion.Bottom);
_line.TextureEnd = new Vector2(TextureRegion.Left, TextureRegion.Bottom);
_line.StartColor = _colors[3];
_line.EndColor = _colors[2];
_line.StartPoint = new Vector2(_corners[2].X, _corners[2].Y);
_line.EndPoint = new Vector2(_corners[3].X + 1.0f, _corners[3].Y);
_line.Draw();
_line.TextureStart = new Vector2(TextureRegion.Left, TextureRegion.Bottom);
_line.TextureEnd = new Vector2(TextureRegion.Left, TextureRegion.Top);
_line.StartColor = _colors[2];
_line.EndColor = _colors[0];
_line.StartPoint = new Vector2(_corners[3].X + 1.0f, _corners[3].Y);
_line.EndPoint = new Vector2(_corners[0].X + 1.0f, _corners[0].Y);
_line.Draw();
}
/// <summary>
/// Function to draw the object.
/// </summary>
public override void Draw()
{
if (IsFilled)
{
if (NeedsTextureUpdate)
{
UpdateTextureCoordinates();
NeedsTextureUpdate = false;
}
UpdateVertices();
AddToRenderQueue();
return;
}
UpdateVertices();
// Set global line state.
_line.AlphaTestValues = AlphaTestValues;
_line.Texture = Texture;
_line.CullingMode = CullingMode;
_line.Depth = Depth;
_line.TextureStart = _points[0].TextureCoordinate;
_line.TextureEnd = _points[1].TextureCoordinate;
_line.StartColor = _points[0].Color;
_line.EndColor = _points[1].Color;
_line.StartPoint = new Vector2(Vertices[0].Position.X, Vertices[0].Position.Y);
_line.EndPoint = new Vector2(Vertices[1].Position.X, Vertices[1].Position.Y);
_line.Draw();
_line.TextureStart = _points[1].TextureCoordinate;
_line.TextureEnd = _points[2].TextureCoordinate;
_line.StartColor = _points[1].Color;
_line.EndColor = _points[2].Color;
_line.StartPoint = new Vector2(Vertices[1].Position.X, Vertices[1].Position.Y);
_line.EndPoint = new Vector2(Vertices[2].Position.X, Vertices[2].Position.Y);
_line.Draw();
_line.TextureStart = _points[2].TextureCoordinate;
_line.TextureEnd = _points[0].TextureCoordinate;
_line.StartColor = _points[2].Color;
_line.EndColor = _points[0].Color;
_line.StartPoint = (Vector2)Vertices[2].Position;
_line.EndPoint = (Vector2)Vertices[0].Position;
_line.Draw();
}
/// <summary>
/// Function to draw the ellipse.
/// </summary>
public override void Draw()
{
// Draw unfilled with a line object.
if (NeedsVertexUpdate)
{
UpdateVertices();
NeedsVertexUpdate = false;
}
if (_isFilled)
{
AddToRenderQueue();
return;
}
_line.Blending = Blending;
_line.DepthStencil = DepthStencil;
_line.TextureSampler = TextureSampler;
for (int i = 0; i < _points.Length; i++)
{
int endPointIndex = i + 1;
if (endPointIndex >= _points.Length)
{
endPointIndex = 0;
}
Vector2 start = TransformUnfilled(ref _points[i]);
Vector2 end = TransformUnfilled(ref _points[endPointIndex]);
Vector2 uvStart = Vector2.Zero;
Vector2 uvEnd = Vector2.Zero;
if (Texture != null)
{
UpdateUnfilledTextureCoordinates(i, endPointIndex, out uvStart, out uvEnd);
}
_line.TextureStart = uvStart;
_line.TextureEnd = uvEnd;
_line.StartColor = _colors[i];
_line.EndColor = _colors[endPointIndex];
_line.StartPoint = start;
_line.EndPoint = end;
_line.Depth = Depth;
_line.Draw();
}
NeedsTextureUpdate = false;
}
/// <summary>
/// Function to draw a line to the current target.
/// </summary>
/// <param name="startPosition">Starting position.</param>
/// <param name="endPosition">Ending position.</param>
/// <param name="color">Color of the line.</param>
/// <param name="thickness">Thickness of the line.</param>
/// <param name="texture">Texture to apply to the line.</param>
/// <param name="textureStart">Starting point on the texture.</param>
/// <param name="textureEnd">Ending point on the texture.</param>
public void DrawLine(Vector2 startPosition, Vector2 endPosition, GorgonColor color, Vector2 thickness, GorgonTexture2D texture, Vector2 textureStart, Vector2 textureEnd)
{
SetStates(_line);
_line.StartPoint = startPosition;
_line.EndPoint = endPosition;
_line.Color = color;
_line.LineThickness = thickness;
_line.Texture = texture;
_line.TextureStart = textureStart;
_line.TextureEnd = textureEnd;
_line.Draw();
}