utils

package

v0.0.0-...-9ae1339 Latest Latest Go to latest Published: Feb 12, 2023 License: MIT Imports: 8 Imported by: 0

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var TheRand = &rand{12345678, 4185243, 776511, 45411}

func Between(min, max int) int

func Constrain[T Numeric](i, low, high T) T

func Fill(buffer *image.RGBA, rgba color.RGBA)

func Interpolate[T Numeric](i, start1, stop1, start2, stop2 T) T

func Lerp[T Numeric](a, b, k T) T

func LoadBufferGray(b []byte) *image.Gray

func LoadBufferPaletted(b []byte) *image.Paletted

func LoadBufferRGBA(b []byte) *image.RGBA

func LoadFileRGBA(filename string) *image.RGBA

func Max[T Numeric](x, y T) T

func Memset(a *[64000]uint16, v uint16)

func Min[T Numeric](x, y T) T

func Random() float64

type Matrix [3]Vector

func NewMatrix(a11, a12, a13, a21, a22, a23, a31, a32, a33 float64) (m Matrix)

func RotX(theta float64) Matrix

func RotY(theta float64) Matrix

func RotZ(theta float64) Matrix

func (m Matrix) MulMat(b Matrix) (r Matrix)

func (m Matrix) MulVec(v Vector) (r Vector)

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

type Vector [3]float64

func NewVector(x, y, z float64) (r Vector)

func (v Vector) Add(a Vector) (r Vector)

func (v Vector) Normalize() Vector

func (v Vector) Sub(a Vector) (r Vector)