Camera2DScreenSpace.TopLeft Property

Camera2DScreenSpace TopLeft Property

Delta Engine Documentation

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

Syntax

public override Vector2D TopLeft { get; }

public override Vector2D TopLeft { get; }

Public Overrides ReadOnly Property TopLeft As Vector2D 
	Get

Public Overrides ReadOnly Property TopLeft As Vector2D 
	Get

public:
virtual property Vector2D TopLeft {
	Vector2D get () override;
}

public:
virtual property Vector2D TopLeft {
	Vector2D get () override;
}

abstract TopLeft : Vector2D with get 
override TopLeft : Vector2D with get

abstract TopLeft : Vector2D with get 
override TopLeft : Vector2D with get

Property Value

Type: Vector2D

Remarks

Tests: DeltaEngine.Tests.ScreenSpaces.Camera2DScreenSpaceTests

Examples

3 unit tests call DeltaEngine.ScreenSpaces.Camera2DScreenSpace.TopLeft

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[Test]
public void IfCameraNotAdjustedEdgesAreIdenticalToQuadraticScreenSpace()
{
    var q = new QuadraticScreenSpace(window);
    var c = new Camera2DScreenSpace(window);
    Assert.AreEqual(q.TopLeft, c.TopLeft);
    Assert.AreEqual(q.BottomRight, c.BottomRight);
    Assert.AreEqual(q.Top, c.Top, 0.0001f);
    Assert.AreEqual(q.Left, c.Left, 0.0001f);
    Assert.AreEqual(q.Bottom, c.Bottom, 0.0001f);
    Assert.AreEqual(q.Right, c.Right, 0.0001f);
}

[Test]
public void IfCameraNotAdjustedEdgesAreIdenticalToQuadraticScreenSpace()
{
    var q = new QuadraticScreenSpace(window);
    var c = new Camera2DScreenSpace(window);
    Assert.AreEqual(q.TopLeft, c.TopLeft);
    Assert.AreEqual(q.BottomRight, c.BottomRight);
    Assert.AreEqual(q.Top, c.Top, 0.0001f);
    Assert.AreEqual(q.Left, c.Left, 0.0001f);
    Assert.AreEqual(q.Bottom, c.Bottom, 0.0001f);
    Assert.AreEqual(q.Right, c.Right, 0.0001f);
}

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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 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);
}