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v0.0.0-...-997a9c1 Latest Latest Go to latest Published: Mar 12, 2023 License: MIT Imports: 6 Imported by: 0

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Repository

github.com/joelschutz/go-terrain

Links

Open Source Insights

Documentation ¶

Index ¶

func CalculateNormal(x, y int, hm HeightMap, length float64) mgl64.Vec3
type HeightMap
- func NewHeightMap(size int) HeightMap
- func NewPerlinMap(size, scale int) HeightMap
type NormalMap
- func NewNormalMap(hm HeightMap, length float64) NormalMap
type Particle
- func NewParticle(pos, vel mgl32.Vec2, vol, sed, den float32) *Particle
type RainSim
- func (rs *RainSim) Update(hm *HeightMap, dirty bool) error

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func CalculateNormal ¶

func CalculateNormal(x, y int, hm HeightMap, length float64) mgl64.Vec3

Types ¶

type HeightMap ¶

type HeightMap [][]float64

func NewHeightMap ¶

func NewHeightMap(size int) HeightMap

func NewPerlinMap ¶

func NewPerlinMap(size, scale int) HeightMap

func (HeightMap) At ¶

func (hm HeightMap) At(x int, y int) color.Color

At returns the color of the pixel at (x, y). At(Bounds().Min.X, Bounds().Min.Y) returns the upper-left pixel of the grid. At(Bounds().Max.X-1, Bounds().Max.Y-1) returns the lower-right one.

func (HeightMap) Bounds ¶

func (hm HeightMap) Bounds() image.Rectangle

Bounds returns the domain for which At can return non-zero color. The bounds do not necessarily contain the point (0, 0).

func (HeightMap) ColorModel ¶

func (hm HeightMap) ColorModel() color.Model

ColorModel returns the Image's color model.

func (HeightMap) Get ¶

func (hm HeightMap) Get(x, y int) float64

func (*HeightMap) Set ¶

func (hm *HeightMap) Set(x, y int, val float64)

func (HeightMap) Truncate ¶

func (hm HeightMap) Truncate() []float64

type NormalMap ¶

type NormalMap [][]mgl64.Vec3

func NewNormalMap ¶

func NewNormalMap(hm HeightMap, length float64) NormalMap

func (NormalMap) At ¶

func (nm NormalMap) At(x int, y int) color.Color

At returns the color of the pixel at (x, y). At(Bounds().Min.X, Bounds().Min.Y) returns the upper-left pixel of the grid. At(Bounds().Max.X-1, Bounds().Max.Y-1) returns the lower-right one.

func (NormalMap) Bounds ¶

func (nm NormalMap) Bounds() image.Rectangle

Bounds returns the domain for which At can return non-zero color. The bounds do not necessarily contain the point (0, 0).

func (NormalMap) ColorModel ¶

func (nm NormalMap) ColorModel() color.Model

ColorModel returns the Image's color model.

func (NormalMap) Truncate ¶

func (nm NormalMap) Truncate() []mgl64.Vec3

type Particle ¶

type Particle struct {
	Stopped bool
	// contains filtered or unexported fields
}

func NewParticle ¶

func NewParticle(pos, vel mgl32.Vec2, vol, sed, den float32) *Particle

func (*Particle) Drop ¶

func (p *Particle) Drop(hm *HeightMap, dt, friction, depositionRate, evaporationRate float32)

func (Particle) GetPosition ¶

func (p Particle) GetPosition() mgl32.Vec2

func (Particle) X ¶

func (p Particle) X() float32

func (Particle) Y ¶

func (p Particle) Y() float32

type RainSim ¶

type RainSim []*Particle

func (*RainSim) Update ¶

func (rs *RainSim) Update(hm *HeightMap, dirty bool) error

Source Files ¶

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