fl::FlowFieldFloat Class Reference

Detailed Description

Float-precision flow field implementation.

Examples

FlowField.ino.

Definition at line 295 of file flowfield.h.

#include <flowfield.h>

Inheritance diagram for fl::FlowFieldFloat:

Collaboration diagram for fl::FlowFieldFloat:

Classes
class	Perlin2D

Public Member Functions
	FlowFieldFloat (const XYMap &xyMap, const Params &params=Params())
fl::string	fxName () const override
Public Member Functions inherited from fl::FlowField
	~FlowField () FL_NOEXCEPT override=default
void	draw (DrawContext context) override
	Handles timing, then delegates to drawImpl().
Params &	getParams ()
const Params &	getParams () const
NoiseBias2D &	noiseBias ()
const NoiseBias2D &	noiseBias () const
void	noisePunch (float amplitude=1.0f, BumpShape shape=BumpShape::HalfSine)
	Trigger a noise punch on both axes at center with proportional width.
void	noisePunchX (float center, float width, float amplitude=1.0f, BumpShape shape=BumpShape::HalfSine)
	Trigger a noise punch on the X axis (columns).
void	noisePunchY (float center, float width, float amplitude=1.0f, BumpShape shape=BumpShape::HalfSine)
	Trigger a noise punch on the Y axis (rows).
void	setColorShift (float speed)
void	setDotCount (int count)
void	setEmitterMode (int mode)
void	setEndpointSpeed (float speed)
void	setFlowAmplitudeX (float amp)
void	setFlowAmplitudeY (float amp)
void	setFlowShift (float shift)
void	setFlowSpeedX (float speed)
void	setFlowSpeedY (float speed)
void	setNoiseFrequency (float freq)
void	setNoiseFrequencyX (float freq)
void	setNoiseFrequencyY (float freq)
void	setPersistence (float halfLife)
void	setReverseXProfile (bool rev)
void	setShowFlowVectors (bool show)
void	setSpeed (float speed)
	Set time speed/scale (1.0 = normal, 0.5 = half speed, etc.)
float	speed () const
Public Member Functions inherited from fl::Fx2d
	Fx2d (const XYMap &xyMap)
u16	getHeight () const
u16	getWidth () const
XYMap &	getXYMap ()
const XYMap &	getXYMap () const
void	setXYMap (const XYMap &xyMap)
u16	xyMap (u16 x, u16 y) const
Public Member Functions inherited from fl::Fx
	Fx (u16 numLeds)
u16	getNumLeds () const
virtual bool	hasFixedFrameRate (float *fps) const
virtual void	pause (fl::u32 now)
virtual void	resume (fl::u32 now)

Protected Member Functions
void	drawImpl (DrawContext context, u32 dt_ms, u32 t_ms) override
	Subclasses implement rendering given the time delta and total time.
Protected Member Functions inherited from fl::FlowField
	FlowField (const XYMap &xyMap, const Params &params=Params())
Protected Member Functions inherited from fl::Fx
virtual	~Fx () FL_NOEXCEPT

Private Member Functions
void	drawAALine (float x0, float y0, float x1, float y1, float t, float colorShift)
void	drawDot (float cx, float cy, float diam, u8 cr, u8 cg, u8 cb)
void	drawFlowVectors (fl::span< CRGB > leds)
void	emitLissajousLine (float t)
void	emitOrbitalDots (float t)
void	flowAdvect (float dt)
void	flowPrepare (float t)
int	idx (int y, int x) const

Static Private Member Functions
static float	clampf (float v, float lo, float hi)
static u8	f2u8 (float v)
static float	fmodPos (float x, float m)
static CRGB	rainbow (float t, float speed, float phase)

Private Attributes
fl::vector< float >	mB
fl::vector< float >	mG
Perlin2D	mNoiseGenX
Perlin2D	mNoiseGenY
fl::vector< float >	mR
fl::vector< float >	mTB
fl::vector< float >	mTG
fl::vector< float >	mTR
fl::vector< float >	mXProf
	Per-column values; drives vertical shift.
fl::vector< float >	mYProf
	Per-row values; drives horizontal shift.

Additional Inherited Members
Public Types inherited from fl::FlowField
using	Params = FlowFieldParams
Public Types inherited from fl::Fx
using	DrawContext = ::fl::DrawContext
Protected Attributes inherited from fl::FlowField
NoiseBias2D	mNoiseBias
Params	mParams
Protected Attributes inherited from fl::Fx2d
XYMap	mXyMap
Protected Attributes inherited from fl::Fx
u16	mNumLeds

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The documentation for this class was generated from the following files:

• fl/fx/2d/flowfield.h
• fl/fx/2d/flowfield.cpp.hpp