fx

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v0.0.0-...-20810c9 Latest Latest
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 Go to latest Published: Mar 21, 2024 License: MIT Imports: 6 Imported by: 0

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Index

Constants

This section is empty.

Variables

View Source 
var (
	// Age in seconds
	Age = NewAttribute(1)
	// Total lifespan in seconds
	Lifespan = NewAttribute(1)

	// A value that can be randomly generated and used in initializers and modifiers.
	// Useful for generating particles on a shape with a velocity relative to the shape.
	Seed = NewAttribute(1)

	// A 2d position
	Pos2 = NewAttribute(2)
	// A 2d velocity
	Vel2 = NewAttribute(2)
	// A dampening of 2d velocity
	Vel2Dampen = NewAttribute(1)
	// A 2d acceleration
	Acc2 = NewAttribute(2)
	// A dampening of 2d acceleration
	Acc2Dampen = NewAttribute(1)

	// A 3d position
	Pos3 = NewAttribute(3)
	// A 3d velocity
	Vel3 = NewAttribute(3)
	// A dampening of 3d velocity
	Vel3Dampen = NewAttribute(1)
	// A 3d acceleration
	Acc3 = NewAttribute(3)
	// A dampening of 3d acceleration
	Acc3Dampen = NewAttribute(1)

	// A uniform size (same width & height)
	Size = NewAttribute(1)
	// A uniform size velocity
	SizeVel = NewAttribute(1)
	// A dampening of uniform size velocity
	SizeVelDampen = NewAttribute(1)
	// A uniform size acceleration
	SizeAcc = NewAttribute(1)

	// A width & height
	Size2 = NewAttribute(2)
	// A width & height velocity
	SizeVel2 = NewAttribute(2)
	// A dampening of width & height velocity
	SizeVel2Dampen = NewAttribute(2)
	// A width & height acceleration
	SizeAcc2 = NewAttribute(2)

	// A uniform scale (both width & height)
	Scale = NewAttribute(1)
	// A uniform scale velocity
	ScaleVel = NewAttribute(1)
	// A dampening of uniform scale velocity
	ScaleVelDampen = NewAttribute(1)
	// A uniform scale acceleration
	ScaleAcc = NewAttribute(1)

	// A 2d scale
	Scale2 = NewAttribute(2)
	// A 2d scale velocity
	ScaleVel2 = NewAttribute(2)
	// A dampening of 2d scale velocity
	ScaleVel2Dampen = NewAttribute(1)
	// A 2d scale acceleration
	ScaleAcc2 = NewAttribute(2)

	// An angle/rotation in radians
	Angle = NewAttribute(1)
	// Angular velocity
	AngleVel = NewAttribute(1)
	// A dampening of angular velocity
	AngleVelDampen = NewAttribute(1)
	// Angular acceleration
	AngleAcc = NewAttribute(1)

	// Rotation anchor, {0,0}=top left, {1,1}=bottom right, {.5,.5}=center
	Anchor = NewAttribute(2)

	// An RGB color
	Shade = NewAttribute(3)
	// An RGBA color
	Color = NewAttribute(4)
	// The alpha
	Alpha = NewAttribute(1)

	// Which texture defined in the system format to use.
	Texture = NewAttribute(1)
)

Functions

func Add 

func Add(out, add []float32)

func Length 

func Length(out []float32) float32

func LengthSq 

func LengthSq(out []float32) float32

func Lerp 

func Lerp(start, end []float32, delta float32, out []float32)

func Life 

func Life(particle []float32, format *Format) float32

func MultiplyScalar 

func MultiplyScalar(out []float32, scalar float32)

Types

type Access 

type Access interface {
	Get(particle []float32, format *Format) []float32
}

type AccessConstant 

type AccessConstant struct {
	Constant []float32
}

func (AccessConstant) Get 

func (a AccessConstant) Get(particle []float32, format *Format) []float32

type AccessData 

type AccessData struct {
	Offset int
	Size   int
}

func (AccessData) Get 

func (a AccessData) Get(particle []float32, format *Format) []float32

type AccessDynamic 

type AccessDynamic struct {
	Dynamic Dynamic
}

func (AccessDynamic) Get 

func (a AccessDynamic) Get(particle []float32, format *Format) []float32

type AccessLerp 

type AccessLerp struct {
	Data   [][]float32
	Easing ease.Easing
	// contains filtered or unexported fields
}

func (AccessLerp) Get 

func (a AccessLerp) Get(particle []float32, format *Format) []float32

type Attribute 

type Attribute struct {
	// contains filtered or unexported fields
}

func NewAttribute 

func NewAttribute(size int) Attribute

func (Attribute) GetInit 

func (a Attribute) GetInit() Init

func (Attribute) GetModify 

func (a Attribute) GetModify() Modify

func (Attribute) ID 

func (a Attribute) ID() int

func (Attribute) Init 

func (a Attribute) Init(init Init) Attribute

func (Attribute) Modify 

func (a Attribute) Modify(modify Modify) Attribute

func (Attribute) Size 

func (a Attribute) Size() int

type AttributeFormat 

type AttributeFormat struct {
	Access    Access
	Attribute Attribute
}

type BurstEmitter 

type BurstEmitter struct {
	Delay     float32
	Frequency Range[float32]
	Size      Range[int]
	Count     int

	Time   float32
	Next   float32
	Bursts int
}

func (BurstEmitter) Done 

func (e BurstEmitter) Done() bool

func (BurstEmitter) Started 

func (e BurstEmitter) Started() bool

func (*BurstEmitter) Update 

func (e *BurstEmitter) Update(dt float32, rnd *rand.Rand) (size int, over float32)

type BurstEmitterType 

type BurstEmitterType struct {
	Delay     Range[float32]
	Frequency Range[float32]
	Size      Range[int]
	Count     Range[int]
}

func (BurstEmitterType) Create 

func (et BurstEmitterType) Create(rnd *rand.Rand) BurstEmitter

type Data 

type Data struct {
	Format *Format
	Data   []float32
	Count  int
	// contains filtered or unexported fields
}

func NewData 

func NewData(format *Format, capacity int) Data

func (Data) At 

func (pd Data) At(index int) []float32

func (Data) Available 

func (pd Data) Available() int

func (Data) Capacity 

func (pd Data) Capacity() int

func (Data) Get 

func (pd Data) Get(index int, attr Attribute) []float32

func (Data) Location 

func (pd Data) Location(index int) int

func (Data) Move 

func (pd Data) Move(from, to int)

func (Data) Swap 

func (pd Data) Swap(i, j int)

type Dynamic 

type Dynamic func(particle []float32, format *Format) []float32

type Emitter 

type Emitter interface {
	Update(dt float32, rnd *rand.Rand) (size int, over float32)
	Done() bool
}

type EmitterType 

type EmitterType interface {
	Create() Emitter
}

type Format 

type Format struct {
	Size       int
	Attributes []AttributeFormat
}

func NewFormat 

func NewFormat() *Format

func (Format) Access 

func (pf Format) Access(attr Attribute) Access

func (*Format) Add 

func (pf *Format) Add(attr AttributeFormat) *Format

func (*Format) AddConstant 

func (pf *Format) AddConstant(attr Attribute, constant ...float32) *Format

func (*Format) AddData 

func (pf *Format) AddData(attr Attribute) *Format

func (*Format) AddDynamic 

func (pf *Format) AddDynamic(attr Attribute, dynamic Dynamic) *Format

func (*Format) AddLerp 

func (pf *Format) AddLerp(attr Attribute, data [][]float32, easing ease.Easing) *Format

func (*Format) Get 

func (pf *Format) Get(attr Attribute, particle []float32) []float32

func (*Format) HasData 

func (pf *Format) HasData(attr Attribute) bool

type Init 

type Init interface {
	Init(particle []float32, format *Format)
	Inits(attr Attribute) bool
}

type InitConstant 

type InitConstant struct {
	Attribute Attribute
	Constant  []float32
}

func (InitConstant) Init 

func (i InitConstant) Init(particle []float32, format *Format)

func (InitConstant) Inits 

func (i InitConstant) Inits(attr Attribute) bool

type InitDynamic 

type InitDynamic struct {
	Attribute Attribute
	Dynamic   Dynamic
}

func (InitDynamic) Init 

func (i InitDynamic) Init(particle []float32, format *Format)

func (InitDynamic) Inits 

func (i InitDynamic) Inits(attr Attribute) bool

type InitList 

type InitList struct {
	List []Init
}

func (InitList) Init 

func (i InitList) Init(particle []float32, format *Format)

func (InitList) Inits 

func (i InitList) Inits(attr Attribute) bool

type InitNone 

type InitNone struct{}

func (InitNone) Init 

func (i InitNone) Init(particle []float32, format *Format)

func (InitNone) Inits 

func (i InitNone) Inits(attr Attribute) bool

type InitRandom 

type InitRandom struct {
	Attribute Attribute
	Start     []float32
	End       []float32
}

func (InitRandom) Init 

func (i InitRandom) Init(particle []float32, format *Format)

func (InitRandom) Inits 

func (i InitRandom) Inits(attr Attribute) bool

type Inits 

type Inits []Init

func (Inits) Add 

func (i Inits) Add(init Init) Inits

func (Inits) Constant 

func (i Inits) Constant(attr Attribute, constant ...float32) Inits

func (Inits) Dynamic 

func (i Inits) Dynamic(attr Attribute, dynamic Dynamic) Inits

func (Inits) Random 

func (i Inits) Random(attr Attribute, start, end []float32) Inits

type Modify 

type Modify interface {
	Modify(particle []float32, format *Format, dt float32)
	Modifies(attr Attribute) bool
}

type ModifyAdder 

type ModifyAdder struct {
	Value Attribute
	Add   Attribute
}

func (ModifyAdder) Modifies 

func (m ModifyAdder) Modifies(attr Attribute) bool

func (ModifyAdder) Modify 

func (m ModifyAdder) Modify(particle []float32, format *Format, dt float32)

type ModifyAge 

type ModifyAge struct {
	Age Attribute
}

func (ModifyAge) Modifies 

func (m ModifyAge) Modifies(attr Attribute) bool

func (ModifyAge) Modify 

func (m ModifyAge) Modify(particle []float32, format *Format, dt float32)

type ModifyLength 

type ModifyLength struct {
	Value Attribute
	Add   Attribute
}

func (ModifyLength) Modifies 

func (m ModifyLength) Modifies(attr Attribute) bool

func (ModifyLength) Modify 

func (m ModifyLength) Modify(particle []float32, format *Format, dt float32)

type ModifyList 

type ModifyList struct {
	List []Modify
}

func (ModifyList) Modifies 

func (m ModifyList) Modifies(attr Attribute) bool

func (ModifyList) Modify 

func (m ModifyList) Modify(particle []float32, format *Format, dt float32)

type ModifyNone 

type ModifyNone struct{}

func (ModifyNone) Modifies 

func (m ModifyNone) Modifies(attr Attribute) bool

func (ModifyNone) Modify 

func (m ModifyNone) Modify(particle []float32, format *Format, dt float32)

type ModifyScalar 

type ModifyScalar struct {
	Value  Attribute
	Scalar Attribute
}

func (ModifyScalar) Modifies 

func (m ModifyScalar) Modifies(attr Attribute) bool

func (ModifyScalar) Modify 

func (m ModifyScalar) Modify(particle []float32, format *Format, dt float32)

type Modifys 

type Modifys []Modify

func (Modifys) Add 

func (m Modifys) Add(mod Modify) Modifys

func (Modifys) Adder 

func (m Modifys) Adder(attr Attribute, add Attribute) Modifys

func (Modifys) Age 

func (m Modifys) Age(attr Attribute) Modifys

func (Modifys) Length 

func (m Modifys) Length(attr Attribute, add Attribute) Modifys

func (Modifys) Scalar 

func (m Modifys) Scalar(attr Attribute, scalar Attribute) Modifys

type Number 

type Number interface {
	constraints.Integer | constraints.Float
}

type Particle2 

type Particle2 struct {
	Position Point2
	Anchor   Point2
	Size     Point2
	Scale    Point2
	Angle    float32
	Tile     gfx.Tile
}

func (*Particle2) Init 

func (p *Particle2) Init()

type Particle3 

type Particle3 struct {
	Position Point3
	Up       Point3
	Right    Point3
	Anchor   Point2
	Size     Point2
	Scale    Point2
	Angle    float32
	Tile     gfx.Tile
}

func (*Particle3) Init 

func (p *Particle3) Init()

type ParticleRenderer 

type ParticleRenderer[P any] func(*P)

type Point2 

type Point2 struct {
	X, Y float32
}

type Point3 

type Point3 struct {
	X, Y, Z float32
}

type Range 

type Range[V Number] struct {
	Min, Max V
}

func NewRange 

func NewRange[V Number](min, maxExclusive V) Range[V]

func NewSingle 

func NewSingle[V Number](value V) Range[V]

func (Range[V]) Get 

func (r Range[V]) Get(rnd *rand.Rand) V

type Renderer 

type Renderer interface {
	CreateBuffer(maxParticles int) *gfx.Buffer
	Render()
}

type System 

type System struct {
	Type    *SystemType
	Random  *rand.Rand
	Data    Data
	Emitter Emitter
	Buffer  *gfx.Buffer
}

func (*System) Done 

func (s *System) Done() bool

func (*System) Emit 

func (s *System) Emit(update float32)

func (*System) InitAt 

func (s *System) InitAt(i int)

func (*System) Render 

func (s *System) Render()

func (*System) Update 

func (s *System) Update(dt float32)

func (*System) UpdateAt 

func (s *System) UpdateAt(i int, dt float32) bool

type SystemType 

type SystemType struct {
	Format       *Format
	Initializers Inits
	Initializer  Init
	Modifiers    Modifys
	Modifier     Modify
	Emitter      EmitterType
	Random       *rand.Rand
	Renderer     Renderer
	MaxParticles int
	Trail        bool
	Spread       bool
	Ordered      bool
}

func (*SystemType) Create 

func (st *SystemType) Create() System

func (*SystemType) GetInitializer 

func (st *SystemType) GetInitializer() Init

func (*SystemType) GetModifier 

func (st *SystemType) GetModifier() Modify

func (SystemType) Init 

func (st SystemType) Init(particle []float32, format *Format)

func (SystemType) Inits 

func (st SystemType) Inits(attr Attribute) bool

func (SystemType) Modifies 

func (st SystemType) Modifies(attr Attribute) bool

func (SystemType) Modify 

func (st SystemType) Modify(particle []float32, format *Format, dt float32)

func (*SystemType) Setup 

func (st *SystemType) Setup()

type Vertex 

type Vertex struct {
	X, Y, Z      float32
	TextureCoord gfx.TextureCoord
	Color        color.Color
}

Source Files

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