LiquidFunDebugDraw Class Reference

Implementation of b2Draw which renders objects (body fixtures, particles, etc.) using DebugRenderer. More...

Inheritance diagram for LiquidFunDebugDraw:

Public Member Functions
	LiquidFunDebugDraw ()
	Constructs a LiquidFunDebugDraw. More...
virtual void	DrawPolygon (const b2Vec2 *vertices, int32 vertexCount, const b2Color &color) override
	Draw a closed polygon line. More...
virtual void	DrawSolidPolygon (const b2Vec2 *vertices, int32 vertexCount, const b2Color &color) override
	Draw a filled polygon. More...
virtual void	DrawCircle (const b2Vec2 &center, float32 radius, const b2Color &color) override
	Draw a circle. More...
virtual void	DrawSolidCircle (const b2Vec2 &center, float32 radius, const b2Vec2 &axis, const b2Color &color) override
	Draw a filled circle. More...
virtual void	DrawParticles (const b2Vec2 *centers, float32 radius, const b2ParticleColor *colors, int32 count) override
	Draw a list of particles as circles. More...
virtual void	DrawSegment (const b2Vec2 &p1, const b2Vec2 &p2, const b2Color &color) override
	Draw a line segment. More...
virtual void	DrawTransform (const b2Transform &xf) override
	Draw a two dimensional transform. More...

Detailed Description

Implementation of b2Draw which renders objects (body fixtures, particles, etc.) using DebugRenderer.

b2Draw receives callbacks from b2World when b2World::DrawDebugData() is called. This class then in turn queues up those shapes in DebugRenderer for later rendering. This allows rendering to occur later in the render thread, and queuing to occur in the main thread, keeping debug shapes visually in sync with physics.

Note

It is expected that a valid Renderer be attached when b2World::DrawDebugData() is called, so that Renderer::getDebugRenderer() can be called.

Constructor & Destructor Documentation

LiquidFunDebugDraw::LiquidFunDebugDraw

(

)

Constructs a LiquidFunDebugDraw.

Member Function Documentation

virtual void LiquidFunDebugDraw::DrawCircle ( const b2Vec2 &  center, float32  radius, const b2Color &  color  )

overridevirtual

Draw a circle.

Parameters

center	Center of the circle
radius	Radius of the circle
color	Color to draw the circle

virtual void LiquidFunDebugDraw::DrawParticles ( const b2Vec2 *  centers, float32  radius, const b2ParticleColor *  colors, int32  count  )

overridevirtual

Draw a list of particles as circles.

Parameters

centers	List of particle centers
radius	Radius of circles
colors	List of particle colors
count	Length of centers and colors

virtual void LiquidFunDebugDraw::DrawPolygon ( const b2Vec2 *  vertices, int32  vertexCount, const b2Color &  color  )

overridevirtual

Draw a closed polygon line.

Parameters

vertices	List of vertices
vertexCount	Length of list vertices
color	Color to draw the polygon

virtual void LiquidFunDebugDraw::DrawSegment ( const b2Vec2 &  p1, const b2Vec2 &  p2, const b2Color &  color  )

overridevirtual

Draw a line segment.

Parameters

p1	First end point
p2	Second end point
color	Color to draw the line segment

virtual void LiquidFunDebugDraw::DrawSolidCircle ( const b2Vec2 &  center, float32  radius, const b2Vec2 &  axis, const b2Color &  color  )

overridevirtual

Draw a filled circle.

Parameters

center	Center of the circle
radius	Radius of the circle
axis	Rotational axis of the circle, to indicate rotation
color	Color to fill the circle

virtual void LiquidFunDebugDraw::DrawSolidPolygon ( const b2Vec2 *  vertices, int32  vertexCount, const b2Color &  color  )

overridevirtual

Draw a filled polygon.

Note

The polygon is expected to be convex.

Parameters

vertices	List of vertices
vertexCount	Length of list vertices
color	Color to fill the polygon

virtual void LiquidFunDebugDraw::DrawTransform ( const b2Transform &  xf )

overridevirtual

Draw a two dimensional transform.

This method visualizes the transform by drawing two colored lines along the transform's x and y axes.

Parameters

xf	Transform to draw