public void DrawElipse(
HSBColor idColor, Vector3 position, float radiusW, float radiusH)
{
// TODO: Batch/cache.
var rgba = idColor.ToColor();
var temp = (VertexPositionColorTexture[])unitSquare.Clone();
for (int i = 0; i < temp.Length; i++)
{
temp[i].Color = rgba;
}
Matrix world =
Matrix.CreateScale(radiusW * 2, radiusH * 2, 1) *
Matrix.CreateTranslation(position);
this.worldMatrix.SetValue(world);
this.shapesEffect.CurrentTechnique = this.circleTechnique;
foreach (EffectPass pass in this.shapesEffect.CurrentTechnique.Passes)
{
pass.Apply();
this.device.DrawUserPrimitives(
PrimitiveType.TriangleList, temp, 0, 2);
}
}
public void DrawSquare(
HSBColor idColor,
Matrix world,
Vector3 pt0,
Vector3 pt1,
Vector3 pt2,
Vector3 pt3)
{
var rgba = idColor.ToColor();
var temp = (VertexPositionColorTexture[])unitSquare.Clone();
temp[0].Position = pt0;
temp[0].Color = rgba;
temp[1].Position = pt1;
temp[1].Color = rgba;
temp[2].Position = pt2;
temp[2].Color = rgba;
temp[3].Position = pt0;
temp[3].Color = rgba;
temp[4].Position = pt2;
temp[4].Color = rgba;
temp[5].Position = pt3;
temp[5].Color = rgba;
this.worldMatrix.SetValue(world);
this.shapesEffect.CurrentTechnique = this.squareTechnique;
foreach (EffectPass pass in this.shapesEffect.CurrentTechnique.Passes)
{
pass.Apply();
this.device.DrawUserPrimitives(
PrimitiveType.TriangleList, temp, 0, 2);
}
}
protected override void Draw(GameTime gameTime)
{
var background = new HSBColor(0.55f, 0.1f, 1f, 1);
GraphicsDevice.Clear(background.ToColor());
GraphicsDevice.RasterizerState = RasterizerState.CullNone;
GraphicsDevice.BlendState = BlendState.AlphaBlend;
Matrix view = Matrix.CreateLookAt(
new Vector3(0, 0, -10),
new Vector3(0, 0, 0),
Vector3.UnitY
) * Matrix.CreateScale(0.75f) *
Matrix.CreateTranslation(0, 0, 0);
Matrix projection = Matrix.CreateOrthographic(
GraphicsDevice.Viewport.Width,
GraphicsDevice.Viewport.Height,
0.0f,
100.0f
);
this.drawingContext.View = view;
this.drawingContext.Projection = projection;
foreach (var node in nodes)
{
node.Draw(this.drawingContext);
}
}