func TitleState(g *game.Game) (State, *game.Game) {
ui.Clear()
ui.Print(0, 0, "Title State")
ui.Update()
ui.GetEvent()
return MenuState, g
}
func LoadState(g *game.Game) (State, *game.Game) {
ui.Clear()
ui.Print(0, 0, "Loading...")
// do actual loading here
ui.PrintSliceAtBottom(g.Read(8))
ui.Update()
time.Sleep(time.Millisecond * 200)
return PlayState, g
}
func MenuState(g *game.Game) (State, *game.Game) {
var offSet = 4
var current = 0
var printFormat string
var ev ui.Event
var options = []struct {
name string
val State
}{
{"Play", PlayState},
{"Save", SaveState},
{"Load", LoadState},
{"Exit", ExitState},
}
menu:
for {
ui.Clear()
for i := range options {
if i == current {
printFormat = SelectPrint
} else {
printFormat = NormalPrint
}
ui.Print(offSet*2, offSet+i, fmt.Sprintf(printFormat, options[i].name))
}
ui.PrintSliceAtBottom(g.Read(8))
ui.Update()
switch ev = ui.GetEvent(); ev.Key {
case ui.DOWN:
if current+1 < len(options) {
current++
}
case ui.UP:
if current-1 > -1 {
current--
}
case ui.ENTER:
break menu
}
}
return options[current].val, g
}