pixelutils

package module

v1.1.0 Latest Latest Go to latest Published: Oct 14, 2021 License: MIT Imports: 6 Imported by: 1

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Repository

github.com/dusk125/pixelutils

Links

Open Source Insights

README ¶

pixelutils

A collection of random things I think could be useful for those using the Pixel library.

Available Tools

Check out the wiki to see how to use these tools.

Sprite Packer: Runtime packer based on rectpack2D.
ID Generator: Thread safe integer ID generator.
Ticker: My attempt for an easy-to-use framerate limiter.
Sprite Loader: A simple sprite/picture data loader based on the Pixel example.
Voronoi Diagrams: A pixel-compatible interface built on Voronoi Diagrams.

Planned

AStar Pathfinding

Contribution

Feel free to add any tools that you've created for Pixel, I just ask that they're documented well and an usage wiki entry is added.

Documentation ¶

Index ¶

Constants
func LoadPictureData(path string) (data *pixel.PictureData, err error)
func LoadSprite(path string) (sprite *pixel.Sprite, err error)
type IDGen
- func (gen *IDGen) Gen() (id int)
type Ticker
- func NewTicker(targetFPS int64) *Ticker
- func NewTickerV(targetFPS, maxPrevFPS int64) *Ticker
type Voronoi
- func NewVoronoi() (v *Voronoi)
- func (v *Voronoi) Compute(boundingBox pixel.Rect, closeCells bool) VoronoiCellMap
- func (v *Voronoi) Insert(id interface{}, pos pixel.Vec)
type VoronoiCell
type VoronoiCellMap

Constants ¶

View Source

const (
	MAX_PREV_FPS = 500
)

Variables ¶

This section is empty.

Functions ¶

func LoadPictureData ¶

func LoadPictureData(path string) (data *pixel.PictureData, err error)

Helper to load a sprite from a file and make Pixel.PictureData from it

func LoadSprite ¶

func LoadSprite(path string) (sprite *pixel.Sprite, err error)

Helper to load a sprite from file and make a Pixel.Sprite from it

Types ¶

type IDGen ¶

type IDGen struct {
	sync.Mutex
	// contains filtered or unexported fields
}

IDGen is a simple, thread safe, integer id generator

func (*IDGen) Gen ¶

func (gen *IDGen) Gen() (id int)

Gen generates the next id and returns it

type Ticker ¶

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

func NewTicker ¶

func NewTicker(targetFPS int64) *Ticker

NewTicker returns a new ticker with the given target fps and 500 stored previous framerates.

func NewTickerV ¶

func NewTickerV(targetFPS, maxPrevFPS int64) *Ticker

NewTickerV returns a new ticker with the given target fps and a custom amount of stored previous framerates.

If maxPrevFPS is <= 0, don't store any previous framerates.

func (Ticker) AvgFramerate ¶

func (ticker Ticker) AvgFramerate() float64

Return the average framerate

func (Ticker) Deltat ¶

func (ticker Ticker) Deltat() float64

Return the last Deltat

func (Ticker) Framerate ¶

func (ticker Ticker) Framerate() float64

Return the last framerate

func (Ticker) PrevFramerates ¶

func (ticker Ticker) PrevFramerates() []float32

Return the list of previous framerates

func (*Ticker) Reset ¶

func (ticker *Ticker) Reset()

Reset the ticker

func (*Ticker) SetTargetFPS ¶

func (ticker *Ticker) SetTargetFPS(target int64)

SetTargetFPS sets the target ticker rate; will be less than or equal to target.

func (Ticker) TargetFrametime ¶

func (ticker Ticker) TargetFrametime() time.Duration

Return the current target frametime

func (*Ticker) Tick ¶

func (ticker *Ticker) Tick() (deltat, framerate float64)

Tick ticks the tickers and calculates the framerate and framedelta

func (*Ticker) Wait ¶

func (ticker *Ticker) Wait()

Wait for the timer to complete its timeout

type Voronoi ¶

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

func NewVoronoi ¶

func NewVoronoi() (v *Voronoi)

Creates and returns a new pixel-compatible Voronoi

func (*Voronoi) Compute ¶

func (v *Voronoi) Compute(boundingBox pixel.Rect, closeCells bool) VoronoiCellMap

Computes the voronoi diagram, constrained by the given bounding box, from the nodes inserted into the list

If closeCells == true, edges from bounding box will be included in the diagram.

func (*Voronoi) Insert ¶

func (v *Voronoi) Insert(id interface{}, pos pixel.Vec)

Inserts the vector into the voronoi list with the given identifier

type VoronoiCell ¶

type VoronoiCell struct {
	ID        interface{}
	Site      pixel.Vec
	Halfedges []pixel.Line
}

type VoronoiCellMap ¶

type VoronoiCellMap map[interface{}]VoronoiCell

Source Files ¶

View all Source files

Directories ¶

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