math

package
v0.0.0-...-b5e2f65 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Nov 29, 2017 License: MIT Imports: 9 Imported by: 6

Documentation

Index

Constants

View Source 
const (
	VEC2 = "VEC2"
	VEC3 = "VEC3"
	VEC4 = "VEC4"
	MAT2 = "MAT2"
	MAT3 = "MAT3"
	MAT4 = "MAT4"
	QUAT = "QUAT"
)
View Source 
const Pi = math.Pi

Variables

View Source 
var (
	Black = NewColor(0, 0, 0, 1)
	White = NewColor(1, 1, 1, 1)
	Red   = NewColor(1, 0, 0, 1)
	Green = NewColor(0, 1, 0, 1)
	Blue  = NewColor(0, 0, 1, 1)
	Gray  = NewColor(0.5, 0.5, 0.5, 1)
)
View Source 
var (
	EmptyQuat = Quat(defaultQW, defaultQVecX, defaultQVecY, defaultQVecZ)
)
View Source 
var Infinity = float32(math.Inf(1))
View Source 
var NoXOfSizeError = xrror.Xrror("No %s of size %d is possible").Out
View Source 
var (
	// vector x,y,z to matrice raw[12,13,14]
	TranslateMxPos = []MxPos{
		{0, 0, 3},
		{1, 1, 3},
		{2, 2, 3},
	}
)

Functions

func Abs 

func Abs(v float32) float32

func Acos 

func Acos(v float32) float32

func Asin 

func Asin(v float32) float32

func Atan 

func Atan(v float32) float32

func Atan2 

func Atan2(y, x float32) float32

func Ceil 

func Ceil(v float32) float32

func Clamp 

func Clamp(x, a, b float32) float32

Clamp value to range <a, b>

func ClampBotton 

func ClampBotton(x, a float32) float32

Clamp value to range <a, inf>

func ClampInt 

func ClampInt(x, a, b int) int

func Cos 

func Cos(v float32) float32

func DegToRad 

func DegToRad(degrees float32) float32

func DisableMemoryPooling 

func DisableMemoryPooling()

func Floor 

func Floor(v float32) float32

func Inf 

func Inf(sign int) float32

func IsNaN 

func IsNaN(v float32) bool

func Max 

func Max(a, b float32) float32

func Min 

func Min(a, b float32) float32

func Mod 

func Mod(a, b float32) float32

func Module 

func Module(L *lua.Lua) lua.Module

func NaN 

func NaN() float32

func NewColor 

func NewColor(r, g, b, a float32) *color

func NewHex 

func NewHex(color uint) *color

func Pf32 

func Pf32(L *l.LState, pos int) float32

TODO: proper LNumber formatting, now its either or bullshit take your pick TODO: this is not that cool

func Pow 

func Pow(a, b float32) float32

func Quat 

func Quat(w, x, y, z float32) *quaternion

func QuatUnp 

func QuatUnp(v ...float32) *quaternion

func RadToDeg 

func RadToDeg(radians float32) float32

func Round 

func Round(v float32) float32

func Sin 

func Sin(v float32) float32

func Sqrt 

func Sqrt(v float32) float32

func Tan 

func Tan(v float32) float32

Types

type AF32 

type AF32 []float32

array of float32

func NewAF32 

func NewAF32(size, capacity int) AF32

func (*AF32) Append 

func (a *AF32) Append(v ...float32)

func (*AF32) Bytes 

func (a *AF32) Bytes() int

Bytes returns the size of the array in bytes

func (*AF32) Len 

func (a *AF32) Len() int

Len returns the number of float32 elements in the array

func (AF32) Set 

func (a AF32) Set(pos int, v ...float32)

func (*AF32) Size 

func (a *AF32) Size() int

Size returns the number of float32 elements in the array

type AU32 

type AU32 []uint32

array of uint32

func NewAU32 

func NewAU32(size, capacity int) AU32

func (*AU32) Append 

func (a *AU32) Append(v ...uint32)

func (*AU32) Bytes 

func (a *AU32) Bytes() int

Bytes returns the size of the array in bytes

func (*AU32) Len 

func (a *AU32) Len() int

Len returns the number of uint32 elements in the array

func (AU32) Set 

func (a AU32) Set(pos int, v ...uint32)

func (*AU32) Size 

func (a *AU32) Size() int

Size returns the number of uint32 elements in the array

type Color 

type Color interface {
	Raw() []float32
	Set(...float32)
	SetHex(uint)
	R() float32
	G() float32
	B() float32
	A() float32
	Add(Color)
	AddScalar(float32)
	Mul(Color)
	MulScalar(float32)
	//Lerp
	Equals(Color) bool
	Clone() Color
}

type Getter 

type Getter interface {
	Get(int) float32
	GetStr(string) float32
}

type Length 

type Length interface {
	RawLen() int
	Len() float32
}

type Manipulator 

type Manipulator interface {
	Raw() []float32
	Update(...float32)
}

type MatRxC 

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

func Mat2 

func Mat2(v ...float32) *MatRxC

func Mat3 

func Mat3(v ...float32) *MatRxC

func Mat4 

func Mat4(v ...float32) *MatRxC

func (*MatRxC) Add 

func (m *MatRxC) Add(o Matrice) Matrice

func (*MatRxC) Cols 

func (m *MatRxC) Cols() int

func (*MatRxC) Compose 

func (m *MatRxC) Compose(translate, rotate, scale []float32) Matrice

func (*MatRxC) Decompose 

func (m *MatRxC) Decompose(translate, scale Vector, rotate Quaternion) Matrice

func (*MatRxC) Determinant 

func (m *MatRxC) Determinant() float32

TODO: rewrite to perform algorithmically based on len of underlying array values or other available details

func (*MatRxC) Frustrum 

func (m *MatRxC) Frustrum(left, right, bottom, top, near, far float32) Matrice

func (*MatRxC) Get 

func (m *MatRxC) Get(row, col int) float32

func (*MatRxC) GetStr 

func (m *MatRxC) GetStr(k1, k2 string) float32

string row and column starting from 1, e.g. string 1,1 will pull 0,0 from the underlying array

func (*MatRxC) Len 

func (m *MatRxC) Len() float32

same as RawLen, until determined if or how to do otherwise

func (*MatRxC) LookAt 

func (m *MatRxC) LookAt(eye, target, up Vector) Matrice

func (*MatRxC) MulMatrice 

func (m *MatRxC) MulMatrice(o Matrice) Matrice

func (*MatRxC) MulScalar 

func (m *MatRxC) MulScalar(c float32) Matrice

func (*MatRxC) MulVec 

func (m *MatRxC) MulVec(o Vector) Vector

func (*MatRxC) Orthographic 

func (m *MatRxC) Orthographic(left, right, top, bottom, near, far float32) Matrice

func (*MatRxC) Perspective 

func (m *MatRxC) Perspective(fov, aspect, near, far float32) Matrice

func (*MatRxC) Raw 

func (m *MatRxC) Raw() []float32

func (*MatRxC) RawLen 

func (m *MatRxC) RawLen() int

length of the underlying raw array

func (*MatRxC) Rotate 

func (m *MatRxC) Rotate(q Quaternion) Matrice

func (*MatRxC) Rows 

func (m *MatRxC) Rows() int

func (*MatRxC) Scale 

func (m *MatRxC) Scale(v Vector) Matrice

func (*MatRxC) Set 

func (m *MatRxC) Set(row, col int, val float32)

func (*MatRxC) SetStr 

func (m *MatRxC) SetStr(k1, k2 string, v float32)

string row and column starting from 1, e.g. string 1,1,val will push 0,0,val to the underlying array

func (*MatRxC) Sub 

func (m *MatRxC) Sub(o Matrice) Matrice

func (*MatRxC) Tag 

func (m *MatRxC) Tag() string

func (*MatRxC) Trace 

func (m *MatRxC) Trace() float32

func (*MatRxC) Translate 

func (m *MatRxC) Translate(v Vector) Matrice

func (*MatRxC) Transpose 

func (m *MatRxC) Transpose() Matrice

func (*MatRxC) Update 

func (m *MatRxC) Update(v ...float32)

caution: will update the underlying array of values with whatever you provide, contingent on index (you cannot bring in more items than already exists in array)

type MathType 

type MathType interface {
	Tag() string
}

type Matrice 

type Matrice interface {
	MathType
	Manipulator
	MultiGetter
	MultiSetter
	Length
	Add(Matrice) Matrice
	Cols() int
	Compose([]float32, []float32, []float32) Matrice
	Decompose(Vector, Vector, Quaternion) Matrice
	Determinant() float32
	LookAt(Vector, Vector, Vector) Matrice
	MulMatrice(Matrice) Matrice
	MulScalar(float32) Matrice
	MulVec(Vector) Vector
	Orthographic(float32, float32, float32, float32, float32, float32) Matrice
	Perspective(float32, float32, float32, float32) Matrice
	Rotate(Quaternion) Matrice
	Rows() int
	Scale(Vector) Matrice
	Sub(Matrice) Matrice
	Transpose() Matrice
	Trace() float32
}

func ExpectedMatrice 

func ExpectedMatrice(k string, v interface{}) (Matrice, bool)

func IdentityMatrix 

func IdentityMatrix(k string) Matrice

func MatOfSize 

func MatOfSize(sz int, m []float32) (Matrice, error)

func MultiplyMatrices 

func MultiplyMatrices(a, b Matrice) Matrice

func ToMatrice 

func ToMatrice(L *l.LState, v l.LValue) Matrice

func UnpackToMat 

func UnpackToMat(L *l.LState, from int, k string, ignore bool) Matrice

type MultiGetter 

type MultiGetter interface {
	Get(int, int) float32
	GetStr(string, string) float32
}

type MultiSetter 

type MultiSetter interface {
	Set(int, int, float32)
	SetStr(string, string, float32)
}

type MxPos 

type MxPos struct {
	Correspondence, Row, Column int
}

type Quaternion 

type Quaternion interface {
	MathType
	Manipulator
	Getter
	Setter
	Length
	Clone() Quaternion
	Conjugate() Quaternion
	Inverse() Quaternion
	Mul(Quaternion) Quaternion
	Normalize() Quaternion
}

func ExpectedQuat 

func ExpectedQuat(v interface{}) (Quaternion, bool)

func SetQuatFromAxisAngle 

func SetQuatFromAxisAngle(q Quaternion, ax Vector, an float32) Quaternion

func SetQuatFromEuler 

func SetQuatFromEuler(q Quaternion, v Vector) Quaternion

func SetQuatFromRotationMatrix 

func SetQuatFromRotationMatrix(q Quaternion, m Matrice) Quaternion

func SetQuatFromUnitVectors 

func SetQuatFromUnitVectors(q Quaternion, from, to Vector) Quaternion

func UnpackToQuat 

func UnpackToQuat(L *l.LState, from int, ignore bool) Quaternion

type Setter 

type Setter interface {
	Set(int, float32)
	SetStr(string, float32)
}

type VecN 

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

func NewVecN 

func NewVecN(tag string, n int) *VecN

func NewVecNFrom 

func NewVecNFrom(tag string, initial []float32) *VecN

func Vec2 

func Vec2(x, y float32) *VecN

func Vec3 

func Vec3(x, y, z float32) *VecN

func Vec4 

func Vec4(x, y, z, w float32) *VecN

func VecUnp 

func VecUnp(v ...float32) *VecN

func (*VecN) Add 

func (v *VecN) Add(o Vector) Vector

func (*VecN) Clone 

func (v *VecN) Clone() Vector

func (*VecN) Cross 

func (v *VecN) Cross(o Vector) Vector

func (*VecN) Dot 

func (v *VecN) Dot(o Vector) float32

func (*VecN) Get 

func (v *VecN) Get(i int) float32

func (*VecN) GetStr 

func (v *VecN) GetStr(k string) float32

func (*VecN) Len 

func (v *VecN) Len() float32

func (*VecN) Mul 

func (v *VecN) Mul(c float32) Vector

func (*VecN) Normalize 

func (v *VecN) Normalize() Vector

func (*VecN) Raw 

func (v *VecN) Raw() []float32

func (*VecN) RawLen 

func (v *VecN) RawLen() int

func (*VecN) Rotate 

func (v *VecN) Rotate(q Quaternion) Vector

func (*VecN) Set 

func (v *VecN) Set(i int, val float32)

func (*VecN) SetStr 

func (v *VecN) SetStr(k string, val float32)

func (*VecN) Sub 

func (v *VecN) Sub(o Vector) Vector

func (*VecN) Tag 

func (v *VecN) Tag() string

func (*VecN) Update 

func (v *VecN) Update(in ...float32)

type Vector 

type Vector interface {
	MathType
	Manipulator
	Getter
	Setter
	Length
	Add(Vector) Vector
	Clone() Vector
	Cross(Vector) Vector
	Dot(Vector) float32
	Mul(float32) Vector
	Normalize() Vector
	Rotate(Quaternion) Vector
	Sub(Vector) Vector
}

func CrossVectors 

func CrossVectors(a, b Vector) Vector

func ExpectedVector 

func ExpectedVector(k string, v interface{}) (Vector, bool)

func MultiplyMatriceVector 

func MultiplyMatriceVector(m Matrice, v Vector) Vector

func SetMatriceFromVector 

func SetMatriceFromVector(m Matrice, v Vector, ps ...MxPos) Vector

func SetVectorFromMatrice 

func SetVectorFromMatrice(v Vector, m Matrice, ps ...MxPos) Vector

func SetVectorFromQuaternion 

func SetVectorFromQuaternion(v Vector, q Quaternion) Vector

func SetVectorFromRotationMatrix 

func SetVectorFromRotationMatrix(v Vector, m Matrice) Vector

func ToVector 

func ToVector(L *l.LState, v l.LValue) Vector

func UnpackToVec 

func UnpackToVec(L *l.LState, from int, k string, ignore bool) Vector

func VecOfSize 

func VecOfSize(sz int, f []float32) (Vector, error)

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.