mathutils

func Clamp ¶

func Clamp(value, min, max float64) float64

Clamp returns value clamped to [min, max]

func Degrees ¶

func Degrees(radians float64) float64

Degrees converts an angle measured in radians to its value in degrees.

func Fract ¶

func Fract(x float64) float64

Fract returns the fractional part of x.

func Lerp ¶

func Lerp(start, end, t float64) float64

Lerp performs linear interpolation between start and end based on t. t should be in the range [0, 1] where 0 returns start and 1 returns end. If t is outside this range, it will extrapolate.

func LinSpace ¶

func LinSpace(min, max float64, n int) []float64

LinSpace returns a slice of float64 values spaced evenly between min and max.

If n is less than or equal to 1, it returns a slice with only the min value.

func MapRange ¶

func MapRange(v, a, b, c, d float64) float64

MapRange maps a value v from one range [a, b] to another range [c, d].

func OppositeAngle ¶

func OppositeAngle(angle float64) float64

OppositeAngle returns opposite angle. Unit is radians. It adds π to the angle and wraps it around if it exceeds 2π.

func Radians ¶

func Radians(degrees float64) float64

Radians converts an angle measured in degrees to its value in radians.

func SinSpace ¶

func SinSpace(amplitude float64, n int) []float64

SinSpace returns a slice of sine values spaced evenly between 0 and 2π.

It generates n points, one period of the sine wave, scaled by the given amplitude.

amplitude // Amplitude of the sine wave
n // Number of points