ScreenSpace.AspectRatio Property

ScreenSpace AspectRatio Property

Delta Engine Documentation

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

Syntax

public float AspectRatio { get; }

public float AspectRatio { get; }

Public ReadOnly Property AspectRatio As Single 
	Get

Public ReadOnly Property AspectRatio As Single 
	Get

public:
property float AspectRatio {
	float get ();
}

public:
property float AspectRatio {
	float get ();
}

member AspectRatio : float32 with get

member AspectRatio : float32 with get

Property Value

Type: Single

Remarks

Tests: DeltaEngine.Tests.ScreenSpaces.QuadraticScreenSpaceTests

Remarks

Tests: DeltaEngine.Tests.ScreenSpaces.Camera2DScreenSpaceTests

Examples

1 unit tests call DeltaEngine.ScreenSpaces.ScreenSpace.AspectRatio

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[Test]
public void TestAspectRatio()
{
    var screen = new QuadraticScreenSpace(window);
    window.ViewportPixelSize = new Size(800, 800);
    Assert.AreEqual(1f, screen.AspectRatio);
    window.ViewportPixelSize = new Size(1920, 1080);
    Assert.AreEqual(0.5625f, screen.AspectRatio);
}

[Test]
public void TestAspectRatio()
{
    var screen = new QuadraticScreenSpace(window);
    window.ViewportPixelSize = new Size(800, 800);
    Assert.AreEqual(1f, screen.AspectRatio);
    window.ViewportPixelSize = new Size(1920, 1080);
    Assert.AreEqual(0.5625f, screen.AspectRatio);
}

Examples

3 unit tests call DeltaEngine.ScreenSpaces.ScreenSpace.AspectRatio

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[Test]
public void EdgesAfterZoomingIn()
{
    Assert.AreEqual(16 / 9.0f, window.ViewportPixelSize.AspectRatio);
    var camera = new Camera2DScreenSpace(window) { Zoom = 2.0f };
    Assert.AreEqual(new Vector2D(0.25f, 0.359375f), camera.TopLeft);
    Assert.AreEqual(new Vector2D(0.75f, 0.640625f), camera.BottomRight);
    Assert.AreEqual(0.359375f, camera.Top, 0.0001f);
    Assert.AreEqual(0.25f, camera.Left, 0.0001f);
    Assert.AreEqual(0.640625f, camera.Bottom, 0.0001f);
    Assert.AreEqual(0.75f, camera.Right, 0.0001f);
}

[Test]
public void EdgesAfterZoomingIn()
{
    Assert.AreEqual(16 / 9.0f, window.ViewportPixelSize.AspectRatio);
    var camera = new Camera2DScreenSpace(window) { Zoom = 2.0f };
    Assert.AreEqual(new Vector2D(0.25f, 0.359375f), camera.TopLeft);
    Assert.AreEqual(new Vector2D(0.75f, 0.640625f), camera.BottomRight);
    Assert.AreEqual(0.359375f, camera.Top, 0.0001f);
    Assert.AreEqual(0.25f, camera.Left, 0.0001f);
    Assert.AreEqual(0.640625f, camera.Bottom, 0.0001f);
    Assert.AreEqual(0.75f, camera.Right, 0.0001f);
}

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[Test]
public void EdgesAfterPanning()
{
    Assert.AreEqual(16 / 9.0f, window.ViewportPixelSize.AspectRatio);
    var camera = new Camera2DScreenSpace(window)
    {
        LookAt = new Vector2D(0.75f, 0.6f)
    };
    Assert.IsTrue(camera.TopLeft.IsNearlyEqual(new Vector2D(0.25f, 0.31875f)));
    Assert.IsTrue(camera.BottomRight.IsNearlyEqual(new Vector2D(1.25f, 0.88125f)));
    Assert.AreEqual(0.31875f, camera.Top, 0.0001f);
    Assert.AreEqual(0.25f, camera.Left, 0.0001f);
    Assert.AreEqual(0.88125f, camera.Bottom, 0.0001f);
    Assert.AreEqual(1.25f, camera.Right, 0.0001f);
}

[Test]
public void EdgesAfterPanning()
{
    Assert.AreEqual(16 / 9.0f, window.ViewportPixelSize.AspectRatio);
    var camera = new Camera2DScreenSpace(window)
    {
        LookAt = new Vector2D(0.75f, 0.6f)
    };
    Assert.IsTrue(camera.TopLeft.IsNearlyEqual(new Vector2D(0.25f, 0.31875f)));
    Assert.IsTrue(camera.BottomRight.IsNearlyEqual(new Vector2D(1.25f, 0.88125f)));
    Assert.AreEqual(0.31875f, camera.Top, 0.0001f);
    Assert.AreEqual(0.25f, camera.Left, 0.0001f);
    Assert.AreEqual(0.88125f, camera.Bottom, 0.0001f);
    Assert.AreEqual(1.25f, camera.Right, 0.0001f);
}

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[Test]
public void EdgesAfterPanningAndZooming()
{
    Assert.AreEqual(16 / 9.0f, window.ViewportPixelSize.AspectRatio);
    var camera = new Camera2DScreenSpace(window)
    {
        LookAt = new Vector2D(0.4f, 0.5f),
        Zoom = 0.5f
    };
    Assert.AreEqual(new Vector2D(-0.6f, -0.0625f), camera.TopLeft);
    Assert.AreEqual(new Vector2D(1.4f, 1.0625f), camera.BottomRight);
    Assert.AreEqual(-0.0625f, camera.Top, 0.0001f);
    Assert.AreEqual(-0.6f, camera.Left, 0.0001f);
    Assert.AreEqual(1.0625f, camera.Bottom, 0.0001f);
    Assert.AreEqual(1.4f, camera.Right, 0.0001f);
}

[Test]
public void EdgesAfterPanningAndZooming()
{
    Assert.AreEqual(16 / 9.0f, window.ViewportPixelSize.AspectRatio);
    var camera = new Camera2DScreenSpace(window)
    {
        LookAt = new Vector2D(0.4f, 0.5f),
        Zoom = 0.5f
    };
    Assert.AreEqual(new Vector2D(-0.6f, -0.0625f), camera.TopLeft);
    Assert.AreEqual(new Vector2D(1.4f, 1.0625f), camera.BottomRight);
    Assert.AreEqual(-0.0625f, camera.Top, 0.0001f);
    Assert.AreEqual(-0.6f, camera.Left, 0.0001f);
    Assert.AreEqual(1.0625f, camera.Bottom, 0.0001f);
    Assert.AreEqual(1.4f, camera.Right, 0.0001f);
}