func (title *TitleState) Update(ui *UI, dt float64) {
width, height := termbox.Size()
text := "Press any key to play. Press 'y' to face an bat at your own risk!"
DrawString(width/8, height/4, text, base.RGB(0, 0, 1), base.RGB(0, 0, 0))
termbox.Flush()
event := termbox.PollEvent()
for event.Type != termbox.EventKey {
event = termbox.PollEvent()
}
switch event.Ch {
case 'y':
ui.Transition("batmenu")
return
case 0:
switch event.Key {
case termbox.KeyCtrlQ:
ui.Pop()
return
}
}
// Create a game without bats
ui.RegisterState("game", NewGameState(0))
ui.Transition("game")
}
func (menu *BatMenuState) Update(ui *UI, dt float64) {
width, height := termbox.Size()
label := "How many bats?"
tryAgain := "Please enter an integer"
DrawString(width/2, height/2-4, label, base.RGB(0, 0, 1), base.RGB(0, 0, 0))
numBatstr := DrawTextBox(width/2, height/2, base.RGB(0, 0, 1), base.RGB(0, 0, 0), 4)
numBats, err := strconv.ParseInt(numBatstr, 10, 64)
for err != nil {
DrawString(width/2, height/2-3, tryAgain, base.RGB(0, 0, 1), base.RGB(0, 0, 0))
numBatstr := DrawTextBox(width/2, height/2, base.RGB(0, 0, 1), base.RGB(0, 0, 0), 4)
numBats, err = strconv.ParseInt(numBatstr, 10, 64)
}
ui.RegisterState("game", NewGameState(numBats))
ui.Transition("game")
}