static void testResetScale(float imageWidth, float imageHeight, IHasModelMatrix sprite)
{
sprite.ResetScale();
Assert.AreEqual(1f, sprite.ScaleX);
Assert.AreEqual(1f, sprite.ScaleY);
Assert.AreEqual(imageWidth, sprite.Width);
Assert.AreEqual(imageHeight, sprite.Height);
}
public PixelPerfectImplementation(IHasModelMatrix model)
{
Model = model;
if (model is IPixelPerfectCollidable)
{
PixelPerfect = (IPixelPerfectCollidable)model;
}
else
{
throw new InvalidOperationException("Missing pixel perfect implementation");
}
}
private Matrix4 getModelMatrix(IHasModelMatrix sprite, PointF areaScaling, PointF resolutionTransform)
{
if (sprite == null) return Matrix4.Identity;
float width = sprite.Width * resolutionTransform.X;
float height = sprite.Height * resolutionTransform.Y;
PointF anchorOffsets = getAnchorOffsets (sprite.Anchor, width, height);
Matrix4 anchor = Matrix4.CreateTranslation (new Vector3(-anchorOffsets.X, -anchorOffsets.Y, 0f));
Matrix4 scale = Matrix4.CreateScale (new Vector3 (sprite.ScaleX * areaScaling.X,
sprite.ScaleY * areaScaling.Y, 1f));
Matrix4 rotation = Matrix4.CreateRotationZ(sprite.Angle);
float x = sprite.X * resolutionTransform.X;
float y = sprite.Y * resolutionTransform.Y;
Matrix4 transform = Matrix4.CreateTranslation (new Vector3(x, y, 0f));
return anchor * scale * rotation * transform;
}
//http://www.opengl-tutorial.org/beginners-tutorials/tutorial-3-matrices/
//http://www.opengl-tutorial.org/intermediate-tutorials/tutorial-17-quaternions/
public IGLMatrices Build(IHasModelMatrix obj, IHasModelMatrix sprite, IObject parent, Matrix4 viewport, PointF areaScaling, PointF resolutionTransform)
{
Matrix4 spriteMatrix = getModelMatrix (sprite, NoScaling, NoScaling);
Matrix4 objMatrix = getModelMatrix (obj, areaScaling, resolutionTransform);
ModelMatrix = spriteMatrix * objMatrix;
while (parent != null)
{
Matrix4 parentMatrix = getModelMatrix(parent, NoScaling, resolutionTransform);
ModelMatrix = ModelMatrix * parentMatrix;
parent = parent.TreeNode.Parent;
}
ViewportMatrix = viewport;
return this;
}
public PixelPerfectImplementation(IHasModelMatrix model)
{
Model = model;
PixelPerfect = (IPixelPerfectComponent)model;
}
public PixelPerfectImplementation(IHasModelMatrix model)
{
Model = model;
if (model is IPixelPerfectCollidable) PixelPerfect = (IPixelPerfectCollidable)model;
else throw new InvalidOperationException("Missing pixel perfect implementation");
}
static void testResetScale(float imageWidth, float imageHeight, IHasModelMatrix sprite)
{
sprite.ResetScale();
Assert.AreEqual(1f, sprite.ScaleX);
Assert.AreEqual(1f, sprite.ScaleY);
Assert.AreEqual(imageWidth, sprite.Width);
Assert.AreEqual(imageHeight, sprite.Height);
}
