/// <summary>Tests whether another draw context is identical to this one</summary>
/// <param name="otherContext">Other context to check for equality</param>
/// <returns>True if the other context is identical to this one</returns>
/// <remarks>
/// Classes deriving from the EffectDrawContext should override this method
/// and do their own comparison - for example, two drawing contexts might
/// use the same effect instance, but apply different effect parameters before
/// rendering - in that case, an additional comparison of the draw context's
/// own settings needs to be performed here.
/// </remarks>
public override bool Equals(DrawContext otherContext)
{
EffectDrawContext other = otherContext as EffectDrawContext;
if (other == null)
{
return(false);
}
Effect thisEffect = this.effect;
Effect otherEffect = other.effect;
// If the same effect instance is behind the other class, we can be sure that
// the effects are identical. Derived clases should override this method,
// otherwise, instance using the same effect but with different effect parameters
// would be compared as equal in this line. If on the other hand, the effect
// draw context is used directly, this comparison is what we want!
if (ReferenceEquals(thisEffect, otherEffect))
{
return(true);
}
// Short cut didn't work, compare the effects member by member
return(CompareEffectParameters(otherEffect));
}
public void TestDifferentContexts() {
Matrix matrix = Matrix.Identity;
TextDrawContext context1 = new TextDrawContext(this.effect, matrix, Color.White);
EffectDrawContext context2 = new EffectDrawContext(this.effect);
Assert.IsFalse(context1.Equals(context2));
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// TODO: use Content to load your game content here
GenerateTerrain(20);
triplanarEffect = contentManager.Load<Effect>("Triplanar");
terrainDrawContext = new EffectDrawContext(triplanarEffect);
terrainDrawContext.Effect.Parameters["ColorMap"].SetValue(contentManager.Load<Texture2D>("paved"));
SetTextureScale();
//terrainDrawContext.BasicEffect.Texture = contentManager.Load<Texture2D>("paved"); ;
}
