/// <summary>
/// The draw.
/// </summary>
/// <param name="gameTime">
/// The gameTime.
/// </param>
public static void Draw(GameTime gameTime)
{
// draw this in the correct order so the scenes behind the topmost scene get drawn behind the topmost scene
foreach (Scene scene in GetVisibleScenes())
{
if (scene.TopMost)
{
game.GraphicsDevice.RenderState.AlphaBlendEnable = true;
game.GraphicsDevice.RenderState.SourceBlend = Blend.BothSourceAlpha;
game.GraphicsDevice.RenderState.DestinationBlend = Blend.DestinationColor;
ShaderManager.SetCurrentEffect(ShaderManager.EFFECT_ID.OVERLAY);
ShaderManager.GetCurrentEffectGraphicsDevice().VertexDeclaration = vd;
ShaderManager.SetCurrentTechnique("Overlay");
ShaderManager.Begin();
foreach (EffectPass pass in ShaderManager.GetEffectPasses())
{
pass.Begin();
ShaderManager.GetCurrentEffectGraphicsDevice().Vertices[0].SetSource(
vb, 0, VertexPositionColor.SizeInBytes);
ShaderManager.GetCurrentEffectGraphicsDevice().DrawPrimitives(PrimitiveType.TriangleStrip, 0, 2);
pass.End();
}
ShaderManager.End();
game.GraphicsDevice.RenderState.AlphaBlendEnable = false;
}
scene.Draw(gameTime);
}
}
/// <summary>
/// The draw physics vertices.
/// </summary>
public virtual void DrawPhysicsVertices()
{
if (Globals.displayState == DISPLAY_STATE.BOTH || Globals.displayState == DISPLAY_STATE.TWO_DIM)
{
// draw the 2d representation of the model
ShaderManager.AddEffect(ShaderManager.EFFECT_ID.SIMPLE, "SimpleEffect", this.Game);
VertexPositionColor[] verticesPC;
verticesPC = new VertexPositionColor[this.PhysicsGeometry.WorldVertices.Count + 1];
for (int i = 0; i < this.PhysicsGeometry.WorldVertices.Count; i++)
{
verticesPC[i] =
new VertexPositionColor(
new Vector3(this.PhysicsGeometry.WorldVertices[i], SceneManager.Z_POSITION), Color.Green);
}
verticesPC[this.PhysicsGeometry.WorldVertices.Count] =
new VertexPositionColor(
new Vector3(this.PhysicsGeometry.WorldVertices[0], SceneManager.Z_POSITION), Color.Green);
var vd = new VertexDeclaration(this.Game.GraphicsDevice, VertexPositionColor.VertexElements);
var VB = new VertexBuffer(
this.Game.GraphicsDevice,
VertexPositionColor.SizeInBytes * (this.PhysicsGeometry.WorldVertices.Count + 1),
BufferUsage.None);
VB.SetData(verticesPC);
ShaderManager.SetCurrentEffect(ShaderManager.EFFECT_ID.SIMPLE);
ShaderManager.SetValue("WVP", this.scene.Camera.View * this.scene.Camera.Perspective);
ShaderManager.SetValue("Color", Color.Black.ToVector4());
ShaderManager.SetCurrentTechnique("SimpleTechnique");
ShaderManager.GetCurrentEffectGraphicsDevice().VertexDeclaration = vd;
ShaderManager.Begin();
foreach (EffectPass pass in ShaderManager.GetEffectPasses())
{
pass.Begin();
ShaderManager.GetCurrentEffectGraphicsDevice().Vertices[0].SetSource(
VB, 0, VertexPositionColor.SizeInBytes);
ShaderManager.GetCurrentEffectGraphicsDevice().DrawPrimitives(
PrimitiveType.LineStrip, 0, this.PhysicsGeometry.WorldVertices.Count);
pass.End();
}
ShaderManager.End();
}
}
