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package ui
import (
"log"
"github.com/hajimehoshi/ebiten/v2"
"github.com/hajimehoshi/ebiten/v2/inpututil"
)
type InputType int
const (
Click InputType = iota + 1
Scroll
Text
)
type InputEvent struct {
kind InputType
x, y int
ctx any
}
type ClickCtx struct {
btn ebiten.MouseButton
}
type ScrollCtx struct {
scrollX, scrollY int
}
type TextCtx struct {
in []rune
}
// Input queue
var Input []InputEvent
func consumeInput(i int) {
log.Println("consume input", i)
if len(Input) == 1 {
Input = []InputEvent{}
} else {
Input[i] = Input[len(Input)-1]
}
}
// Update all ui singletons and collect all occurred input
func Update() error {
Input = []InputEvent{}
if err := TouchManager.Update(); err != nil {
return err
}
// TODO: make hover detector a singleton
x, y := ebiten.CursorPosition()
scrollX, scrollY := ebiten.Wheel()
if scrollX != 0 || scrollY != 0 {
Input = append(Input, InputEvent{Scroll, x, y, ScrollCtx{int(scrollX), int(scrollY)}})
}
var in []rune
in = ebiten.AppendInputChars(in)
if len(in) > 0 {
Input = append(Input, InputEvent{Text, x, y, TextCtx{in}})
}
if inpututil.IsMouseButtonJustPressed(ebiten.MouseButtonLeft) {
Input = append(Input, InputEvent{Click, x, y, ClickCtx{ebiten.MouseButtonLeft}})
}
return nil
}
|
