draws

package
v0.2.1 Latest Latest
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 Go to latest Published: Oct 18, 2022 License: Apache-2.0 Imports: 7 Imported by: 1

Documentation

Index

Constants

View Source 
const (
	OriginLeft = iota
	OriginCenter
	OriginRight
)
View Source 
const (
	OriginTop = iota
	OriginMiddle
	OriginBottom
)
View Source 
const (
	AlignLeft = iota
	AlignCenter
	AlignRight
)
View Source 
const (
	AlignTop = iota
	AlignMiddle
	AlignBottom
)
View Source 
const (
	ModeMin = iota
	ModeMid
	ModeMax
)
View Source 
const (
	ButtonModePressed = iota
	ButtonModeClicked // onClick goes called when mouse button is pressed and released.
)

Variables

View Source 
var (
	AtMin = ModeXY{ModeMin, ModeMin}
	AtMid = ModeXY{ModeMid, ModeMid}
	AtMax = ModeXY{ModeMax, ModeMax}
)

Functions

func NewImage 

func NewImage(path string) *ebiten.Image

NewImage returns nil when fails to load image from the path.

func NewImageImage 

func NewImageImage(path string) image.Image

NewImageImage returns image.Image.

func NewScaledImage 

func NewScaledImage(i *ebiten.Image, scale float64) *ebiten.Image

func NewXFlippedImage 

func NewXFlippedImage(i *ebiten.Image) *ebiten.Image

func NewYFlippedImage 

func NewYFlippedImage(i *ebiten.Image) *ebiten.Image

Types

type Align 

type Align struct{ X, Y int }

type AnimationDrawer 

type AnimationDrawer struct {
	Time      int64
	Duration  int64 // float64
	StartTime int64
	// EndTime   int64
	// Cycle   int
	Sprites []Sprite
}

func (AnimationDrawer) Draw 

func (d AnimationDrawer) Draw(screen *ebiten.Image, op *ebiten.DrawImageOptions, tx, ty float64)

func (AnimationDrawer) Frame 

func (d AnimationDrawer) Frame() int

func (*AnimationDrawer) Update 

func (d *AnimationDrawer) Update(time, duration int64, reset bool)
func (d *AnimationDrawer) SetTime(time, duration int64) {
	d.Time = time
	d.StartTime = time
	d.EndTime = time + duration
}

type BaseDrawer 

type BaseDrawer struct {
	Countdown    int
	MaxCountdown int // Draw permanently when value is zero.
}

Countdown is for drawing a sprite for a while.

func (BaseDrawer) Age 

func (d BaseDrawer) Age() float64

Todo: should I handle when MaxCountdown == 0?

func (*BaseDrawer) Update 

func (d *BaseDrawer) Update(reloaded bool)

type Box 

type Box struct {
	Inner Subject
	Pad   Point
	Point
	Origin2 ModeXY
	Align   ModeXY
	Outer   Subject
}

Box is wrapped Subject(Sprite, Label) with Position data.

func (Box) Draw 

func (b Box) Draw(screen *ebiten.Image, op ebiten.DrawImageOptions, p Point)

Box may be a inner subject. Input point passes external translate values.

func (Box) In 

func (b Box) In(p Point) bool

func (Box) InnerMax 

func (b Box) InnerMax() Point

func (Box) InnerMin 

func (b Box) InnerMin() Point

func (Box) OuterMax 

func (b Box) OuterMax() Point

func (Box) OuterMin 

func (b Box) OuterMin() Point

func (Box) OuterSize 

func (b Box) OuterSize() Point

func (*Box) SetSize 

func (b *Box) SetSize(size Point)

type Button 

type Button struct {
	Box
	// contains filtered or unexported fields
}

func (*Button) Hover 

func (b *Button) Hover() bool

func (*Button) Update 

func (b *Button) Update()

type Grid 

type Grid [][]Box

Grid implements inteface Subject.

func NewGrid 

func NewGrid(boxs [][]Box, ws, hs []float64, gap Point) *Grid

func (Grid) Draw 

func (g Grid) Draw(screen *ebiten.Image, op ebiten.DrawImageOptions, p Point)

func (*Grid) SetSize 

func (g *Grid) SetSize(size Point)

Todo: implement

func (Grid) Size 

func (g Grid) Size() (p Point)

type Label 

type Label struct {
	Text  string
	Face  font.Face
	Color color.Color
	Scale Point
}

Label may have expecting w and h by selecting specific Face.

func NewLabel 

func NewLabel(text string, face font.Face, color color.Color) *Label

func (Label) Draw 

func (l Label) Draw(screen *ebiten.Image, op ebiten.DrawImageOptions, p Point)

func (*Label) SetSize 

func (l *Label) SetSize(size Point)

func (Label) Size 

func (l Label) Size() Point

type ModeXY 

type ModeXY struct{ X, Y int }

type Origin 

type Origin int
const (
	OriginLeftTop      Origin = iota // Default Origin.
	OriginLeftMiddle                 // e.g., Notes in Piano mode.
	OriginLeftBottom                 // e.g., back button.
	OriginCenterTop                  // e.g., drawing field.
	OriginCenterMiddle               // Most of sprite's Origin.
	OriginCenterBottom               // e.g., Meter.
	OriginRightTop                   // e.g., score.
	OriginRightMiddle                // e.g., chart info boxes.
	OriginRightBottom                // e.g., Play button.
)

func (Origin) PositionX 

func (origin Origin) PositionX() int

func (Origin) PositionY 

func (origin Origin) PositionY() int

type Origin2 

type Origin2 struct{ X, Y int }

type Point 

type Point struct{ X, Y float64 }

func IntPt 

func IntPt(x, y int) Point

func OuterSize 

func OuterSize(inner Subject, pad Point) Point
func NewBox(inner Subject, pad Point) Box {
	size := inner.Size()
	size.Add(pad.Mul(Scalar(2)))
	return Box{
		Outer: NewSprite3FromImage(
			ebiten.NewImage(size.XYInt()),
		),
		Inner: inner,
		Pad:   pad,
	}
}

func Pt 

func Pt(x, y float64) Point

func Scalar 

func Scalar(v float64) Point

func (Point) Add 

func (p Point) Add(q Point) Point

func (Point) Div 

func (p Point) Div(q Point) Point

func (Point) Mul 

func (p Point) Mul(q Point) Point

func (Point) Sub 

func (p Point) Sub(q Point) Point

func (Point) XY 

func (p Point) XY() (float64, float64)

func (Point) XYInt 

func (p Point) XYInt() (int, int)

type Rectangle 

type Rectangle struct {
	Size_ Point
	Color color.Color
	Outer *Rectangle
}

Todo: nine-patch

func NewRectangle 

func NewRectangle(size Point) *Rectangle

func (Rectangle) Draw 

func (r Rectangle) Draw(screen *ebiten.Image, op ebiten.DrawImageOptions, p Point)

func (*Rectangle) SetSize 

func (r *Rectangle) SetSize(size Point)

func (Rectangle) Size 

func (r Rectangle) Size() Point
func NewRectangle(size Point, color color.Color) *Rectangle {
	return &Rectangle{
		Size_: size,
		Color: color,
	}
}

type Sprite 

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

Sprite is a image drawn in screen based on its position and scale. DrawImageOptions is not commutative. Do translate at final stage. Todo: embed Text?

func NewSprite 

func NewSprite(path string) Sprite

func NewSpriteFromImage 

func NewSpriteFromImage(src *ebiten.Image) Sprite

func (Sprite) Draw 

func (s Sprite) Draw(screen *ebiten.Image, opSrc *ebiten.DrawImageOptions)

func (Sprite) Filter 

func (s Sprite) Filter() ebiten.Filter

func (Sprite) H 

func (s Sprite) H() float64

func (Sprite) In 

func (s Sprite) In(x, y float64) bool

func (Sprite) IsValid 

func (s Sprite) IsValid() bool

func (Sprite) LeftTopX 

func (s Sprite) LeftTopX() float64

func (Sprite) LeftTopY 

func (s Sprite) LeftTopY() float64

func (*Sprite) Move 

func (s *Sprite) Move(tx, ty float64)

func (Sprite) Origin 

func (s Sprite) Origin() Origin

func (*Sprite) SetPosition 

func (s *Sprite) SetPosition(x, y float64, origin Origin)

func (*Sprite) SetScale 

func (s *Sprite) SetScale(scale float64)

func (*Sprite) SetScaleXY 

func (s *Sprite) SetScaleXY(scaleW, scaleH float64, filter ebiten.Filter)

func (Sprite) Size 

func (s Sprite) Size() (float64, float64)

func (Sprite) SrcSize 

func (s Sprite) SrcSize() (int, int)

func (Sprite) W 

func (s Sprite) W() float64

func (s Sprite) Image() *ebiten.Image { return s.i }

func (Sprite) X 

func (s Sprite) X() float64

func (Sprite) Y 

func (s Sprite) Y() float64

type Sprite3 

type Sprite3 struct {
	Scale Point
	// contains filtered or unexported fields
}

Sprite is a scaled image. Sprite3's i is nil if Sprite3 is a placeholder or failed to load an image.

func NewSprite3 

func NewSprite3(path string) *Sprite3

func NewSprite3FromImage 

func NewSprite3FromImage(i *ebiten.Image) *Sprite3

func (Sprite3) Draw 

func (s Sprite3) Draw(screen *ebiten.Image, op ebiten.DrawImageOptions, p Point)

Currently option's Filter is fixed with FilterLinear.

func (*Sprite3) SetSize 

func (s *Sprite3) SetSize(size Point)

func (Sprite3) Size 

func (s Sprite3) Size() Point
func NewBlankSprite3(size Point) Sprite3 {
	return Sprite3{
		ebiten.NewImage(size.XYInt()),
		Point{1, 1},
	}
}

type Subject 

type Subject interface {
	Size() Point
	SetSize(size Point)
	Draw(*ebiten.Image, ebiten.DrawImageOptions, Point)
}

Source Files

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