Camera2DScreenSpace Class

Delta Engine Documentation

Behaves like QuadraticScreenSpace but can also pan and zoom. See https://deltaengine.fogbugz.com/default.asp?W101 View code on GitHub

Inheritance Hierarchy

System Object
  DeltaEngine.ScreenSpaces ScreenSpace
    DeltaEngine.ScreenSpaces QuadraticScreenSpace
      DeltaEngine.ScreenSpaces Camera2DScreenSpace

Namespace: DeltaEngine.ScreenSpaces
Assembly: DeltaEngine (in DeltaEngine.dll) Version: 1.1.1.0 (1.1.1)

Syntax

C++

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public class Camera2DScreenSpace : QuadraticScreenSpace

public class Camera2DScreenSpace : QuadraticScreenSpace

Public Class Camera2DScreenSpace 
	Inherits QuadraticScreenSpace

Public Class Camera2DScreenSpace 
	Inherits QuadraticScreenSpace

public ref class Camera2DScreenSpace : public QuadraticScreenSpace

public ref class Camera2DScreenSpace : public QuadraticScreenSpace

type Camera2DScreenSpace =  
    class 
        inherit QuadraticScreenSpace 
    end

type Camera2DScreenSpace =  
    class 
        inherit QuadraticScreenSpace 
    end

The Camera2DScreenSpace type exposes the following members.

Constructors

	Name	Description
	Camera2DScreenSpace	Initializes a new instance of the Camera2DScreenSpace class

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Methods

	Name	Description
	Dispose	(Inherited from ScreenSpace.)
	FromPixelSpace(Rectangle)	View code on GitHub (Inherited from ScreenSpace.)
	FromPixelSpace(Size)	View code on GitHub (Overrides QuadraticScreenSpace FromPixelSpace(Size).)
	FromPixelSpace(Vector2D)	View code on GitHub (Overrides QuadraticScreenSpace FromPixelSpace(Vector2D).)
	GetInnerPosition	(Inherited from QuadraticScreenSpace.)
	InverseTransform
	RaiseViewportSizeChanged	(Inherited from ScreenSpace.)
	ToPixelSpace(Rectangle)	View code on GitHub (Inherited from ScreenSpace.)
	ToPixelSpace(Size)	View code on GitHub (Overrides QuadraticScreenSpace ToPixelSpace(Size).)
	ToPixelSpace(Vector2D)	View code on GitHub (Overrides QuadraticScreenSpace ToPixelSpace(Vector2D).)
	ToPixelSpaceRounded	The rounded version of ToPixelSpace is used for lines, boxes and fonts where it matters to actually render at exact pixel positions to get sharp lines, boxes or font rendering. View code on GitHub (Inherited from ScreenSpace.)
	Transform
	Update	(Inherited from QuadraticScreenSpace.)

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Fields

	Name	Description
	LookAt
	Rotation
	RotationCenter
	viewportPixelSize	(Inherited from ScreenSpace.)

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Properties

	Name	Description
	AspectRatio	View code on GitHub (Inherited from ScreenSpace.)
	Bottom	(Overrides QuadraticScreenSpace Bottom.)
	BottomRight	View code on GitHub (Overrides QuadraticScreenSpace BottomRight.)
	Left	(Overrides QuadraticScreenSpace Left.)
	Right	(Overrides QuadraticScreenSpace Right.)
	Top	(Overrides QuadraticScreenSpace Top.)
	TopLeft	View code on GitHub (Overrides QuadraticScreenSpace TopLeft.)
	Viewport	View code on GitHub (Inherited from ScreenSpace.)
	Zoom	View code on GitHub

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Events

	Name	Description
	ViewportSizeChanged	(Inherited from ScreenSpace.)

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Remarks

Tests: DeltaEngine.Tests.ScreenSpaces.Camera2DScreenSpaceTests

Examples

11 unit tests call DeltaEngine.ScreenSpaces.Camera2DScreenSpace

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[Test]
public void LookAt()
{
    var camera = new Camera2DScreenSpace(window);
    Assert.AreEqual(Vector2D.Half, camera.LookAt);
    camera.LookAt = Vector2D.One;
    Assert.AreEqual(Vector2D.One, camera.LookAt);
}

[Test]
public void LookAt()
{
    var camera = new Camera2DScreenSpace(window);
    Assert.AreEqual(Vector2D.Half, camera.LookAt);
    camera.LookAt = Vector2D.One;
    Assert.AreEqual(Vector2D.One, camera.LookAt);
}

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[Test]
public void Zoom()
{
    var camera = new Camera2DScreenSpace(window);
    Assert.AreEqual(1.0f, camera.Zoom);
    camera.Zoom = 2.5f;
    Assert.AreEqual(2.5f, camera.Zoom);
}

[Test]
public void Zoom()
{
    var camera = new Camera2DScreenSpace(window);
    Assert.AreEqual(1.0f, camera.Zoom);
    camera.Zoom = 2.5f;
    Assert.AreEqual(2.5f, camera.Zoom);
}

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[Test]
public void IfCameraNotAdjustedItBehavesIdenticallyToQuadraticScreenSpace()
{
    var q = new QuadraticScreenSpace(window);
    var c = new Camera2DScreenSpace(window);
    Assert.IsTrue(
        c.FromPixelSpace(new Vector2D(1, 2)).IsNearlyEqual(q.FromPixelSpace(new Vector2D(1, 2))));
    Assert.IsTrue(
        c.FromPixelSpace(new Size(-3, 4)).IsNearlyEqual(q.FromPixelSpace(new Size(-3, 4))));
    Assert.IsTrue(
        c.ToPixelSpace(new Vector2D(2, 6)).IsNearlyEqual(q.ToPixelSpace(new Vector2D(2, 6))));
    Assert.IsTrue(c.ToPixelSpace(new Size(-2, 0)).IsNearlyEqual(q.ToPixelSpace(new Size(-2, 0))));
}

[Test]
public void IfCameraNotAdjustedItBehavesIdenticallyToQuadraticScreenSpace()
{
    var q = new QuadraticScreenSpace(window);
    var c = new Camera2DScreenSpace(window);
    Assert.IsTrue(
        c.FromPixelSpace(new Vector2D(1, 2)).IsNearlyEqual(q.FromPixelSpace(new Vector2D(1, 2))));
    Assert.IsTrue(
        c.FromPixelSpace(new Size(-3, 4)).IsNearlyEqual(q.FromPixelSpace(new Size(-3, 4))));
    Assert.IsTrue(
        c.ToPixelSpace(new Vector2D(2, 6)).IsNearlyEqual(q.ToPixelSpace(new Vector2D(2, 6))));
    Assert.IsTrue(c.ToPixelSpace(new Size(-2, 0)).IsNearlyEqual(q.ToPixelSpace(new Size(-2, 0))));
}