util

package

v0.0.0-...-e229e0e Latest Latest Go to latest Published: Jan 17, 2022 License: GPL-2.0 Imports: 12 Imported by: 8

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Valid go.mod file
Redistributable license
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Stable version
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Repository

github.com/walesey/go-engine

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Documentation ¶

Index ¶

func Base64ToBytes(base64String string) []byte
func BoolBytes(w io.Writer, b bool) error
func BoolFromBytes(r io.Reader) (bool, error)
func FacingOrientation(rotation float32, direction, normal, tangent mgl32.Vec3) mgl32.Quat
func FacingOrientation64(rotation float64, direction, normal, tangent mgl64.Vec3) mgl64.Quat
func Float32bytes(w io.Writer, float float32) error
func Float32frombytes(r io.Reader) (float32, error)
func Float64bytes(w io.Writer, float float64) error
func Float64frombytes(r io.Reader) (float64, error)
func ImageColor(r, g, b, a uint8) image.Image
func Mat4From(scale, translation mgl32.Vec3, orientation mgl32.Quat) mgl32.Mat4
func Mat4From64(scale, translation mgl64.Vec3, orientation mgl64.Quat) mgl64.Mat4
func Max(values ...float64) float64
func MaxF32(values ...float32) float32
func Min(values ...float64) float64
func MinF32(values ...float32) float32
func PointLiesInsideAABB(a, b, point mgl32.Vec2) bool
func PointLiesInsideTriangle(a, b, c, point mgl32.Vec3) bool
func PointToLineDist(a, b, point mgl32.Vec3) float32
func PointToPlaneDist(a, b, c, point mgl32.Vec3) float32
func Quat_32_from(q mgl64.Quat) mgl32.Quat
func Quat_64_from(q mgl32.Quat) mgl64.Quat
func RayTriangleIntersect(a, b, c, start, direction mgl32.Vec3) (point mgl32.Vec3, ok bool)
func Round(val float32, roundOn float32, places int) float32
func RoundHalfUp(val float32) (newVal int)
func SegmentCircleIntersect(radius float32, center, start, finish mgl32.Vec2) (mgl32.Vec2, error)
func SerializeArgs(args ...interface{}) ([]byte, error)
func SetInterval(fn func(), interval time.Duration) func()
func Stringbytes(w io.Writer, str string) error
func Stringfrombytes(r io.Reader) (string, error)
func TwoSegmentIntersect(p11, p12, p21, p22 mgl32.Vec2) (mgl32.Vec2, error)
func UInt16Bytes(w io.Writer, i uint16) error
func UInt16frombytes(r io.Reader) (uint16, error)
func UInt32Bytes(w io.Writer, i uint32) error
func UInt32frombytes(r io.Reader) (uint32, error)
func UInt64Bytes(w io.Writer, i uint64) error
func UInt64frombytes(r io.Reader) (uint64, error)
func UInt8Bytes(w io.Writer, i uint8) error
func UInt8frombytes(r io.Reader) (uint8, error)
func Vec2AngleBetween(v1, v2 mgl32.Vec2) float32
func Vec2Cross(v1, v2 mgl32.Vec2) float32
func Vec2LenSq(v1 mgl32.Vec2) float32
func Vec2LenSq64(v1 mgl64.Vec2) float64
func Vec2Rotate(v mgl32.Vec2, angle float32) mgl32.Vec2
func Vec3LenSq(v1 mgl32.Vec3) float32
func Vec3LenSq64(v1 mgl64.Vec3) float64
func Vec3Lerp(start, end mgl32.Vec3, amount float32) mgl32.Vec3
func Vec3Lerp64(start, end mgl64.Vec3, amount float64) mgl64.Vec3
func Vec3_32_from(v mgl64.Vec3) mgl32.Vec3
func Vec3_64_from(v mgl32.Vec3) mgl64.Vec3
func Vector2bytes(w io.Writer, vector mgl32.Vec2) error
func Vector2bytes64(w io.Writer, vector mgl64.Vec2) error
func Vector2frombytes(r io.Reader) (mgl32.Vec2, error)
func Vector2frombytes64(r io.Reader) (mgl64.Vec2, error)
func Vector3bytes(w io.Writer, vector mgl32.Vec3) error
func Vector3bytes64(w io.Writer, vector mgl64.Vec3) error
func Vector3frombytes(r io.Reader) (mgl32.Vec3, error)
func Vector3frombytes64(r io.Reader) (mgl64.Vec3, error)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Base64ToBytes ¶

func Base64ToBytes(base64String string) []byte

func BoolBytes ¶

func BoolBytes(w io.Writer, b bool) error

func BoolFromBytes ¶

func BoolFromBytes(r io.Reader) (bool, error)

func FacingOrientation ¶

func FacingOrientation(rotation float32, direction, normal, tangent mgl32.Vec3) mgl32.Quat

FacingOrientation - return an orientation that always faces the given direction with rotation

func FacingOrientation64 ¶

func FacingOrientation64(rotation float64, direction, normal, tangent mgl64.Vec3) mgl64.Quat

func Float32bytes ¶

func Float32bytes(w io.Writer, float float32) error

func Float32frombytes ¶

func Float32frombytes(r io.Reader) (float32, error)

func Float64bytes ¶

func Float64bytes(w io.Writer, float float64) error

func Float64frombytes ¶

func Float64frombytes(r io.Reader) (float64, error)

func ImageColor ¶

func ImageColor(r, g, b, a uint8) image.Image

ImageColor - returns an image with a single pixel

func Mat4From ¶

func Mat4From(scale, translation mgl32.Vec3, orientation mgl32.Quat) mgl32.Mat4

func Mat4From64 ¶

func Mat4From64(scale, translation mgl64.Vec3, orientation mgl64.Quat) mgl64.Mat4

func Max ¶

func Max(values ...float64) float64

Max - returns the largest value of the values provided.

func MaxF32 ¶

func MaxF32(values ...float32) float32

Max - returns the largest value of the values provided.

func Min ¶

func Min(values ...float64) float64

Min - returns the smallest value of the values provided.

func MinF32 ¶

func MinF32(values ...float32) float32

Min - returns the smallest value of the values provided.

func PointLiesInsideAABB ¶

func PointLiesInsideAABB(a, b, point mgl32.Vec2) bool

PointLiesInsideAABB - return true if the point lies within the rectan formed by points a and b

func PointLiesInsideTriangle ¶

func PointLiesInsideTriangle(a, b, c, point mgl32.Vec3) bool

PointLiesInsideTriangle - return true if the point lies within the triangle formed by points (a,b,c)

func PointToLineDist ¶

func PointToLineDist(a, b, point mgl32.Vec3) float32

PointToLineDist distance from line (a,b) to point

func PointToPlaneDist ¶

func PointToPlaneDist(a, b, c, point mgl32.Vec3) float32

PointToPlaneDist distance from plane (a,b,c) to point

func Quat_32_from ¶

func Quat_32_from(q mgl64.Quat) mgl32.Quat

func Quat_64_from ¶

func Quat_64_from(q mgl32.Quat) mgl64.Quat

func RayTriangleIntersect ¶

func RayTriangleIntersect(a, b, c, start, direction mgl32.Vec3) (point mgl32.Vec3, ok bool)

RayTriangleIntersect - return true if the ray formed by start and direction intersects with the triangle formed by points (a,b,c)

func Round ¶

func Round(val float32, roundOn float32, places int) float32

func RoundHalfUp ¶

func RoundHalfUp(val float32) (newVal int)

func SegmentCircleIntersect ¶

func SegmentCircleIntersect(radius float32, center, start, finish mgl32.Vec2) (mgl32.Vec2, error)

func SerializeArgs ¶

func SerializeArgs(args ...interface{}) ([]byte, error)

func SetInterval ¶

func SetInterval(fn func(), interval time.Duration) func()

func Stringbytes ¶

func Stringbytes(w io.Writer, str string) error

func Stringfrombytes ¶

func Stringfrombytes(r io.Reader) (string, error)

func TwoSegmentIntersect ¶

func TwoSegmentIntersect(p11, p12, p21, p22 mgl32.Vec2) (mgl32.Vec2, error)

TwoSegmentIntersect - find the intersection point of two line segments <p11-p12> and <p21-p22>

func UInt16Bytes ¶

func UInt16Bytes(w io.Writer, i uint16) error

func UInt16frombytes ¶

func UInt16frombytes(r io.Reader) (uint16, error)

func UInt32Bytes ¶

func UInt32Bytes(w io.Writer, i uint32) error

func UInt32frombytes ¶

func UInt32frombytes(r io.Reader) (uint32, error)

func UInt64Bytes ¶

func UInt64Bytes(w io.Writer, i uint64) error

func UInt64frombytes ¶

func UInt64frombytes(r io.Reader) (uint64, error)

func UInt8Bytes ¶

func UInt8Bytes(w io.Writer, i uint8) error

func UInt8frombytes ¶

func UInt8frombytes(r io.Reader) (uint8, error)

func Vec2AngleBetween ¶

func Vec2AngleBetween(v1, v2 mgl32.Vec2) float32

func Vec2Cross ¶

func Vec2Cross(v1, v2 mgl32.Vec2) float32

func Vec2LenSq ¶

func Vec2LenSq(v1 mgl32.Vec2) float32

func Vec2LenSq64 ¶

func Vec2LenSq64(v1 mgl64.Vec2) float64

func Vec2Rotate ¶

func Vec2Rotate(v mgl32.Vec2, angle float32) mgl32.Vec2

func Vec3LenSq ¶

func Vec3LenSq(v1 mgl32.Vec3) float32

func Vec3LenSq64 ¶

func Vec3LenSq64(v1 mgl64.Vec3) float64

func Vec3Lerp ¶

func Vec3Lerp(start, end mgl32.Vec3, amount float32) mgl32.Vec3

func Vec3Lerp64 ¶

func Vec3Lerp64(start, end mgl64.Vec3, amount float64) mgl64.Vec3

func Vec3_32_from ¶

func Vec3_32_from(v mgl64.Vec3) mgl32.Vec3

func Vec3_64_from ¶

func Vec3_64_from(v mgl32.Vec3) mgl64.Vec3

func Vector2bytes ¶

func Vector2bytes(w io.Writer, vector mgl32.Vec2) error

func Vector2bytes64 ¶

func Vector2bytes64(w io.Writer, vector mgl64.Vec2) error

func Vector2frombytes ¶

func Vector2frombytes(r io.Reader) (mgl32.Vec2, error)

func Vector2frombytes64 ¶

func Vector2frombytes64(r io.Reader) (mgl64.Vec2, error)

func Vector3bytes ¶

func Vector3bytes(w io.Writer, vector mgl32.Vec3) error

func Vector3bytes64 ¶

func Vector3bytes64(w io.Writer, vector mgl64.Vec3) error

func Vector3frombytes ¶

func Vector3frombytes(r io.Reader) (mgl32.Vec3, error)

func Vector3frombytes64 ¶

func Vector3frombytes64(r io.Reader) (mgl64.Vec3, error)

Types ¶

This section is empty.

Source Files ¶

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