#include <tb_basic_shapes.hpp>

Inheritance diagram for TurtleBrains::Graphics::PolygonShape:

Public Member Functions
	PolygonShape (void)

	PolygonShape (const PolygonShape &other)

virtual	~PolygonShape (void)

virtual void	SetColor (const tbGraphics::Color &newColor) override

virtual PixelSpace	GetPixelWidth (void) const override

virtual PixelSpace	GetPixelHeight (void) const override

Public Member Functions inherited from TurtleBrains::Graphics::Graphic
	Graphic (void)

	Graphic (const Graphic &other)

virtual	~Graphic (void)

bool	IsActive (void) const

void	SetActive (const bool isActive)

void	Update (const float deltaTime)

bool	IsVisible (void) const

void	SetVisible (const bool isVisible)

void	Render (void) const

const tbMath::Vector2 &	GetPosition (void) const

void	SetPosition (const float x, const float y)

void	SetPosition (const tbMath::Vector2 &position)

const tbMath::Vector2 &	GetOrigin (void) const

void	SetOrigin (const AnchorLocation &anchor, const tbMath::Vector2 &offset=tbMath::Vector2::Zero())

void	SetOrigin (const float originX, const float originY)

void	SetOrigin (const tbMath::Vector2 &origin)

float	GetDepth (void) const

void	SetDepth (const float newDepth)

const tbMath::Vector2 &	GetScale (void) const

void	SetScale (const float scale)

void	SetScale (const tbMath::Vector2 &scale)

void	SetScale (const float scaleX, const float scaleY)

float	GetRotation (void) const

void	SetRotation (const float rotation)

void	SetScroll (const float scroll)

void	SetScroll (const float scrollX, const float scrollY)

bool	IsRelative (void) const

const Color &	GetColor (void) const

float	GetWidth (void) const

float	GetHeight (void) const

float	GetScaledWidth (void) const

float	GetScaledHeight (void) const

bool	UnstableIsPointContained (const tbMath::Vector2 &point) const

Protected Member Functions
virtual void	OnRender (void) const override

virtual void	ClearVertices (void)

virtual void	AddVertex (const tbMath::Vector2 &position)

void	SetAsTriangles (void)

void	SetAsTriangleFan (void)

void	SetAsTriangleStrip (void)

void	SetAsLines (void)

void	SetAsLineStrip (void)

void	SetAsLineLoop (void)

void	SetVertexPosition (size_t vertexIndex, const tbMath::Vector2 &position)

void	RecomputeBounds (void)

Protected Member Functions inherited from TurtleBrains::Graphics::Graphic
virtual void	OnUpdate (const float deltaTime)

virtual void	ApplyTransform (void) const

virtual void	PopTransform (void) const

Friends
class	OutlinedPolygonShape

Detailed Description

Allow creation of simple and complex shapes by supplying several points that get shaped into triangles.

Constructor & Destructor Documentation

TurtleBrains::Graphics::PolygonShape::PolygonShape ( void )

Constructs an empty PolygonShape object that contains no vertices.

TurtleBrains::Graphics::PolygonShape::PolygonShape ( const PolygonShape & other )

Constructs a PolygonShape object with the same properties as the other object being copied.

virtual TurtleBrains::Graphics::PolygonShape::~PolygonShape ( void )

virtual

Cleans up after a PolygonShape, clearing the vertex container in the process.

Member Function Documentation

virtual void TurtleBrains::Graphics::PolygonShape::AddVertex ( const tbMath::Vector2 & position )

protectedvirtual

Adds a vertex to a container of vertices for the PolygonShape. How it will be rendered depends on how the PolygonShape object is configured.

virtual void TurtleBrains::Graphics::PolygonShape::ClearVertices ( void )

protectedvirtual

Clears all the vertices in the PolygonShape.

Reimplemented in TurtleBrains::Graphics::OutlinedPolygonShape.

virtual PixelSpace TurtleBrains::Graphics::PolygonShape::GetPixelHeight ( void ) const

overridevirtual

Computes and returns the height of the PolygonShape in pixels.

Reimplemented from TurtleBrains::Graphics::Graphic.

virtual PixelSpace TurtleBrains::Graphics::PolygonShape::GetPixelWidth ( void ) const

overridevirtual

Computes and returns the width of the PolygonShape in pixels.

Reimplemented from TurtleBrains::Graphics::Graphic.

virtual void TurtleBrains::Graphics::PolygonShape::OnRender ( void ) const

overrideprotectedvirtual

Renders the PolygonShape object vertices as Triangles, TriangleStrip, TriangleFan, Lines, LineStrip or LineLoop depending on how the object is configured to treat the vertices. Depending on the configuration this may trigger an error condition based on number of vertices.

Implements TurtleBrains::Graphics::Graphic.

Reimplemented in TurtleBrains::Graphics::OutlinedPolygonShape.

void TurtleBrains::Graphics::PolygonShape::RecomputeBounds ( void )

protected

Iterate through all the vertices to recompute the boundaries of the shape. This should be called if the shape is changed with SetVertexPosition() as it is the only way to reset the bounds.

void TurtleBrains::Graphics::PolygonShape::SetAsLineLoop ( void )

inlineprotected

Configures the object to treat the vertices as a line loop, which is identical in behavior to a line strip in that at least 2 vertices must be added, (really 3 for a visible loop). Each vertex added after the first will create a line segment to the vertex added previously. A final line segment will be created automatically from the last added vertex to the very first vertex which will complete the loop.

void TurtleBrains::Graphics::PolygonShape::SetAsLines ( void )

inlineprotected

Configures the object to treat the vertices as a list of lines. In this mode the number of vertices must be equal-to or greater-than 2, and must also be divisible by 2. Each pair of vertices added will form a line segment.

void TurtleBrains::Graphics::PolygonShape::SetAsLineStrip ( void )

inlineprotected

Configures the object to treat the vertices as a line strip. In this mode the number of vertices must be at least 2. Each vertex added after the first will create a line segment to the vertex added previously.

void TurtleBrains::Graphics::PolygonShape::SetAsTriangleFan ( void )

inlineprotected

Configures the object to treat the vertices as a fan of Triangles. In this mode the number of vertices must be equal-to or greater-than 3. The first vertex added will be the center of the fan and used for each of the triangles.

void TurtleBrains::Graphics::PolygonShape::SetAsTriangles ( void )

inlineprotected

Configures the object to treat the vertices as a list of Triangles. In this mode the number of vertices must be equal-to or greater-than 3, and must also be divisible by 3.

void TurtleBrains::Graphics::PolygonShape::SetAsTriangleStrip ( void )

inlineprotected

Configures the object to treat the vertices as a strip of Triangles. In this mode the number of vertices must be at least 3. Each vertex after the third will create a triangle using the two vertices added immediately before it.

virtual void TurtleBrains::Graphics::PolygonShape::SetColor ( const tbGraphics::Color & newColor )

overridevirtual

Sets the color of all the vertices in the PolygonShape.

Reimplemented from TurtleBrains::Graphics::Graphic.

void TurtleBrains::Graphics::PolygonShape::SetVertexPosition	(	size_t	vertexIndex,
		const tbMath::Vector2 &	position
	)

protected

Sets the position of the desired vertex. The vertex must already exist or an error condition will be triggered. This is useful for resizing or animating shapes without allocating new vertices.

Note: After making all the calls to SetVertexPosition that are needed, RecomputeBounds() should be called to ensure the new bounds are accurate.; This will destroy any notion of origin offset or anchoring in the shape.

Public Member Functions

Protected Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation