ui

package
v0.0.0-...-cf0ae38 Latest Latest
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 Go to latest Published: Aug 10, 2024 License: GPL-3.0 Imports: 16 Imported by: 0

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Index

Constants

View Source 
const (
	LetterSpacing      = 1
	SpaceWidth         = 4
	TextPadding        = 1
	ButtonHeight       = 15
	DefaultButtonWidth = 90
)

Variables

This section is empty.

Functions

func ButtonBackground 

func ButtonBackground(mgr *ecs.World, w, h int, l, t float64, layer int, absolute bool) ecs.Entity

ButtonBackground constructs a new background for a button. It visual only and contains no interaction.

func EvaluateIfExpression 

func EvaluateIfExpression(expr string, data interface{}) bool

func LineSpacing 

func LineSpacing(l TextSize) int

func Resolve 

func Resolve(text string, data interface{}) (string, error)

Resolve the value of text by executing it as a template with the provided data source. Values like "45" are returned directly, while value like {{ .Age }} are resolved by pulling the field (if it exists) with the name "Age" from data.

func ResolveInt 

func ResolveInt(text string, data interface{}) (int, error)

ResolveInt functions like Resolve, but returns an integral value.

Types

type AttributeMap 

type AttributeMap map[string]string

func (AttributeMap) Align 

func (m AttributeMap) Align() string

func (AttributeMap) BottomPadding 

func (m AttributeMap) BottomPadding() int

func (AttributeMap) FontLayout 

func (m AttributeMap) FontLayout() TextLayout

func (AttributeMap) FontSize 

func (m AttributeMap) FontSize() TextSize

func (AttributeMap) Height 

func (m AttributeMap) Height() int

func (AttributeMap) Intangible 

func (m AttributeMap) Intangible() bool

func (AttributeMap) LeftPadding 

func (m AttributeMap) LeftPadding() int

func (AttributeMap) RightPadding 

func (m AttributeMap) RightPadding() int

func (AttributeMap) TopPadding 

func (m AttributeMap) TopPadding() int

func (AttributeMap) Twelfths 

func (m AttributeMap) Twelfths() int

func (AttributeMap) Valign 

func (m AttributeMap) Valign() string

func (AttributeMap) Width 

func (m AttributeMap) Width() int

func (AttributeMap) X 

func (m AttributeMap) X() int

func (AttributeMap) Y 

func (m AttributeMap) Y() int

type ButtonRenderInstruction 

type ButtonRenderInstruction struct {
	Pressed bool
	Bounds  image.Rectangle
	Label   string
}

type Character 

type Character struct {
	Raw                 rune
	Width, Height, X, Y int
}

type Element 

type Element struct {
	Type       ElementType
	Attributes AttributeMap

	Children []*Element
}

type ElementType 

type ElementType int
const (
	UIElement ElementType = iota
	PanelElement
	PaddingElement
	ColumnElement
	TextElement
	ButtonElement
	ImageElement
	IfElement
	RangeElement
)

func (ElementType) String 

func (i ElementType) String() string

type ImageRenderInstruction 

type ImageRenderInstruction struct {
	Texture  string
	From     image.Rectangle
	AtX, AtY float64
}

type Interact 

type Interact struct {
	X, Y                 float64
	AbsoluteX, AbsoluteY float64
}

Interact happens when a UIInteract event is unhandled by any UI.

func (Interact) Type 

func (Interact) Type() event.Type

Type of the Event.

type Interactive 

type Interactive struct {
	W, H    float64
	Trigger func(x, y float64)
}

Interactive tags Components that can be interacted with in some way. Trigger is a function that is provided the x,y coordinate of the click either in world or screen coordinates, depending on the Position of the Interactive.

func (*Interactive) Type 

func (*Interactive) Type() string

Type of this Component.

type InteractiveRegion 

type InteractiveRegion struct {
	Bounds  image.Rectangle
	Handler func()
}

type InteractiveSystem 

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

InteractiveSystem pumps events through Interactives.

func NewInteractiveSystem 

func NewInteractiveSystem(mgr *ecs.World, bus *event.Bus) *InteractiveSystem

NewInteractiveSystem creates a new InteractiveSystem.

func (*InteractiveSystem) Handle 

func (is *InteractiveSystem) Handle(ev *Interact)

Handle an Interact event.

type Line 

type Line []Word

func SplitLines 

func SplitLines(lines []Line, width int) []Line

func (Line) String 

func (l Line) String() string

func (Line) Width 

func (l Line) Width() int

Width of a Line is the sum of the widths of it's Words plus SpaceWidth times the number of Words minus one.

type PanelRenderInstruction 

type PanelRenderInstruction struct {
	Bounds image.Rectangle
}

type RenderInstruction 

type RenderInstruction interface {
}

type Text 

type Text struct {
	Lines []Line
	// Size              TextSize
	BitmapFontTexture string
}

Text is a metadata enriched version of a standard string, that has not been laid out.

func NewText 

func NewText(value string, size TextSize) *Text

type TextLayout 

type TextLayout int
const (
	TextLayoutLeft TextLayout = iota
	TextLayoutRight
	TextLayoutJustify
	TextLayoutCenter
)

type TextRenderInstruction 

type TextRenderInstruction struct {
	Text   string
	Size   TextSize
	Bounds image.Rectangle
	Layout TextLayout
}

type TextSize 

type TextSize int
const (
	TextSizeNormal TextSize = iota
	TextSizeSmall
)

type UI 

type UI struct {
	Doc *Element

	Data interface{}
	// contains filtered or unexported fields
}

UI is a Component that represents a UI. The stutter is unfortunate ...

func NewUI 

func NewUI(r io.Reader) *UI

NewUI construct a new UI Component from a declared XML template. You're responsible for assigning Data to the Component before rendering it.

func (*UI) RenderInstructions 

func (c *UI) RenderInstructions() []RenderInstruction

func (*UI) Type 

func (*UI) Type() string

Type of this Component.

type UIInteract 

type UIInteract struct {
	X, Y                 float64
	AbsoluteX, AbsoluteY float64
}

UIInteract happens when the player interacts with the game by clicking with the mouse or tapping on the screen.

func (UIInteract) Type 

func (UIInteract) Type() event.Type

Type of the Event.

type UISystem 

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

func NewUISystem 

func NewUISystem(mgr *ecs.World, bus *event.Bus) *UISystem

func (*UISystem) Handle 

func (uis *UISystem) Handle(ev *UIInteract)

func (*UISystem) Update 

func (sys *UISystem) Update(elapsed time.Duration) error

type Word 

type Word struct {
	Characters []Character
}

func (Word) String 

func (w Word) String() string

func (*Word) Width 

func (w *Word) Width() int

Width of a Word is the sum of the widths of it's characters plus LetterSpacing times the number of characters minus one.

Source Files

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