HierarchyEntity2D.RelativeRotation Property

HierarchyEntity2D RelativeRotation Property

Delta Engine Documentation

Namespace: DeltaEngine.Rendering2D
Assembly: DeltaEngine.Rendering2D (in DeltaEngine.Rendering2D.dll) Version: 1.1.1.0 (1.1.1)

Syntax

C++

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public float RelativeRotation { get; set; }

public float RelativeRotation { get; set; }

Public Property RelativeRotation As Single 
	Get 
	Set

Public Property RelativeRotation As Single 
	Get 
	Set

public:
virtual property float RelativeRotation {
	float get () sealed;
	void set (float value) sealed;
}

public:
virtual property float RelativeRotation {
	float get () sealed;
	void set (float value) sealed;
}

abstract RelativeRotation : float32 with get, set 
override RelativeRotation : float32 with get, set

abstract RelativeRotation : float32 with get, set 
override RelativeRotation : float32 with get, set

Property Value

Type: Single

Implements

HierarchyObject2D RelativeRotation

Remarks

Tests: DeltaEngine.Rendering2D.Tests.HierarchyEntity2DTests

Examples

3 unit tests call DeltaEngine.Rendering2D.HierarchyEntity2D.RelativeRotation

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[Test]
public void SetLocalsUpdatesGlobals()
{
    var parentEntity = new MockHierarchyEntity2D(Rectangle.FromCenter(Vector2D.Half, Size.Zero));
    var childEntity = new MockHierarchyEntity2D(Rectangle.Zero);
    parentEntity.Add(childEntity);
    var childRelativePosition = new Vector2D(0.2f, 0.0f);
    childEntity.RelativePosition = childRelativePosition;
    childEntity.RelativeRotation = 10;
    Assert.AreEqual(parentEntity.Center + childRelativePosition, childEntity.Center);
    Assert.AreEqual(10, childEntity.Rotation);
}

[Test]
public void SetLocalsUpdatesGlobals()
{
    var parentEntity = new MockHierarchyEntity2D(Rectangle.FromCenter(Vector2D.Half, Size.Zero));
    var childEntity = new MockHierarchyEntity2D(Rectangle.Zero);
    parentEntity.Add(childEntity);
    var childRelativePosition = new Vector2D(0.2f, 0.0f);
    childEntity.RelativePosition = childRelativePosition;
    childEntity.RelativeRotation = 10;
    Assert.AreEqual(parentEntity.Center + childRelativePosition, childEntity.Center);
    Assert.AreEqual(10, childEntity.Rotation);
}

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[Test]
public void BuildHierarchyOfDifferentEntities()
{
    var parentEntity = new MockHierarchyEntity2D();
    var entityGivenPosition = new MockHierarchyEntity2D(new Vector2D(0.3f, 0.4f));
    var entityGivenRect = new MockHierarchyEntity2D(new Rectangle(0.1f, 0.0f, 0.5f, 0.4f), 20);
    parentEntity.Add(entityGivenPosition);
    parentEntity.Add(entityGivenRect);
    Assert.AreEqual(parentEntity, entityGivenPosition.Parent);
    Assert.AreEqual(new Vector2D(0.3f, 0.4f), entityGivenPosition.RelativePosition);
    Assert.AreEqual(parentEntity, entityGivenRect.Parent);
    Assert.AreEqual(20, entityGivenRect.RelativeRotation);
}

[Test]
public void BuildHierarchyOfDifferentEntities()
{
    var parentEntity = new MockHierarchyEntity2D();
    var entityGivenPosition = new MockHierarchyEntity2D(new Vector2D(0.3f, 0.4f));
    var entityGivenRect = new MockHierarchyEntity2D(new Rectangle(0.1f, 0.0f, 0.5f, 0.4f), 20);
    parentEntity.Add(entityGivenPosition);
    parentEntity.Add(entityGivenRect);
    Assert.AreEqual(parentEntity, entityGivenPosition.Parent);
    Assert.AreEqual(new Vector2D(0.3f, 0.4f), entityGivenPosition.RelativePosition);
    Assert.AreEqual(parentEntity, entityGivenRect.Parent);
    Assert.AreEqual(20, entityGivenRect.RelativeRotation);
}

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[Test]
public void SettingLocalWithoutParentSetsGlobal()
{
    var entity = new MockHierarchyEntity2D();
    var setPosition = new Vector2D(0.2f,0.5f);
    const float SetRotation = 30.0f;
    entity.RelativePosition = setPosition;
    entity.RelativeRotation = SetRotation;
    Assert.AreEqual(setPosition, entity.Center);
    Assert.AreEqual(SetRotation, entity.Rotation);
}

[Test]
public void SettingLocalWithoutParentSetsGlobal()
{
    var entity = new MockHierarchyEntity2D();
    var setPosition = new Vector2D(0.2f,0.5f);
    const float SetRotation = 30.0f;
    entity.RelativePosition = setPosition;
    entity.RelativeRotation = SetRotation;
    Assert.AreEqual(setPosition, entity.Center);
    Assert.AreEqual(SetRotation, entity.Rotation);
}