func main() {
rand.Seed(time.Now().Unix())
logfile, err := os.Create("roguelike.log")
if err != nil {
panic(err)
}
log.SetOutput(logfile)
initCurses()
defer endCurses()
currentLevel = level.New(level.Test)
player = entity.NewPlayer()
currentLevel.Put(player, 40, 13)
drawCurrentLevel()
drawInfoBar()
for !quit {
var a entity.Action
switch ch := C.getch(); ch {
case C.KEY_UP, 'k', '8':
a = entity.MoveAction{direction.North}
case C.KEY_DOWN, 'j', '2':
a = entity.MoveAction{direction.South}
case C.KEY_RIGHT, 'l', '6':
a = entity.MoveAction{direction.East}
case C.KEY_LEFT, 'h', '4':
a = entity.MoveAction{direction.West}
case 'y', '7':
a = entity.MoveAction{direction.NorthWest}
case 'u', '9':
a = entity.MoveAction{direction.NorthEast}
case 'm', '3':
a = entity.MoveAction{direction.SouthEast}
case 'n', '1':
a = entity.MoveAction{direction.SouthWest}
case 'i':
updateInventory()
displayInventory()
C.getch()
case ',':
items := displayPickUpChoice()
a = entity.PickUpAction{items}
case 'q':
quit = true
}
player.SetAction(a)
currentLevel.Run()
drawCurrentLevel()
drawInfoBar()
}
}
func consume(expects ...rune) bool {
for _, r := range expects {
if int(C.getch()) != int(r) {
return false
}
}
return true
}
func Hello(s string) {
C.initscr()
p := C.CString(fmt.Sprintf("Hello, %s", s))
C.Printw(p)
C.free(unsafe.Pointer(p))
C.refresh()
C.getch()
C.endwin()
}
func Init(theme *ColorTheme, black bool, mouse bool) {
C.setlocale(C.LC_ALL, C.CString(""))
tty := C.c_tty()
if tty == nil {
fmt.Println("Failed to open /dev/tty")
os.Exit(2)
}
_screen = C.c_newterm(tty)
if _screen == nil {
fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
os.Exit(2)
}
C.set_term(_screen)
if mouse {
C.mousemask(C.ALL_MOUSE_EVENTS, nil)
C.mouseinterval(0)
}
C.noecho()
C.raw() // stty dsusp undef
C.nonl()
C.keypad(C.stdscr, true)
delay := 50
delayEnv := os.Getenv("ESCDELAY")
if len(delayEnv) > 0 {
num, err := strconv.Atoi(delayEnv)
if err == nil && num >= 0 {
delay = num
}
}
C.set_escdelay(C.int(delay))
_color = theme != nil
if _color {
C.start_color()
InitTheme(theme, black)
initPairs(theme)
C.bkgd(C.chtype(C.COLOR_PAIR(C.int(ColNormal))))
_colorFn = attrColored
} else {
_colorFn = attrMono
}
C.nodelay(C.stdscr, true)
ch := C.getch()
if ch != C.ERR {
C.ungetch(ch)
}
C.nodelay(C.stdscr, false)
}
func escSequence() Event {
C.nodelay(C.stdscr, true)
defer func() {
C.nodelay(C.stdscr, false)
}()
c := C.getch()
switch c {
case C.ERR:
return Event{ESC, 0, nil}
case CtrlM:
return Event{AltEnter, 0, nil}
case '/':
return Event{AltSlash, 0, nil}
case ' ':
return Event{AltSpace, 0, nil}
case 127, C.KEY_BACKSPACE:
return Event{AltBS, 0, nil}
case '[':
// Bracketed paste mode (printf "\e[?2004h")
// \e[200~ TEXT \e[201~
if consume('2', '0', '0', '~') {
return Event{Invalid, 0, nil}
}
}
if c >= 'a' && c <= 'z' {
return Event{AltA + int(c) - 'a', 0, nil}
}
if c >= '0' && c <= '9' {
return Event{Alt0 + int(c) - '0', 0, nil}
}
// Don't care. Ignore the rest.
for ; c != C.ERR; c = C.getch() {
}
return Event{Invalid, 0, nil}
}
func displayPickUpChoice() []entity.ID {
var str *C.char
C.clear()
C.move(0, 0)
str = C.CString("Pick up what?\n")
C.addstr(str)
C.free(unsafe.Pointer(str))
px, py := currentLevel.EntityLocation(player.EntityID())
itemsAvailable := currentLevel.ItemsAt(px, py)
for i, eid := range itemsAvailable {
C.addch(C.chtype(inventoryChar(byte(i))))
str = C.CString(" - ")
C.addstr(str)
C.free(unsafe.Pointer(str))
str = C.CString(currentLevel.EntityByID(eid).EntityName())
C.addstr(str)
C.free(unsafe.Pointer(str))
}
itemsChosen := make([]bool, len(itemsAvailable))
for {
ch := C.getch()
if ch == C.KEY_ENTER || ch == ' ' || ch == '\n' {
break
}
if ch > C.int(255) {
continue
}
if i := inventoryIndex(byte(ch)); (int(i) < len(itemsChosen)) &&
(i != 255) {
if itemsChosen[i] {
itemsChosen[i] = false
C.mvaddch(C.int(i+1), 2, C.chtype('-'))
} else {
itemsChosen[i] = true
C.mvaddch(C.int(i+1), 2, C.chtype('+'))
}
}
}
result := make([]entity.ID, 0, len(itemsAvailable))
for i, v := range itemsChosen {
if v {
result = append(result, itemsAvailable[i])
}
}
return result
}
func (r *FullscreenRenderer) Init() {
C.setlocale(C.LC_ALL, C.CString(""))
tty := C.c_tty()
if tty == nil {
errorExit("Failed to open /dev/tty")
}
_screen = C.c_newterm(tty)
if _screen == nil {
errorExit("Invalid $TERM: " + os.Getenv("TERM"))
}
C.set_term(_screen)
if r.mouse {
C.mousemask(C.ALL_MOUSE_EVENTS, nil)
C.mouseinterval(0)
}
C.noecho()
C.raw() // stty dsusp undef
C.nonl()
C.keypad(C.stdscr, true)
delay := 50
delayEnv := os.Getenv("ESCDELAY")
if len(delayEnv) > 0 {
num, err := strconv.Atoi(delayEnv)
if err == nil && num >= 0 {
delay = num
}
}
C.set_escdelay(C.int(delay))
if r.theme != nil {
C.start_color()
initTheme(r.theme, r.defaultTheme(), r.forceBlack)
initPairs(r.theme)
C.bkgd(C.chtype(C.COLOR_PAIR(C.int(ColNormal.index()))))
_colorFn = attrColored
} else {
initTheme(r.theme, nil, r.forceBlack)
_colorFn = attrMono
}
C.nodelay(C.stdscr, true)
ch := C.getch()
if ch != C.ERR {
C.ungetch(ch)
}
C.nodelay(C.stdscr, false)
}
func Getch() int {
return int(C.getch())
}
func getch(termDescriptor int) byte {
return byte(C.getch(C.int(termDescriptor)))
}
func (r *FullscreenRenderer) GetChar() Event {
c := C.getch()
switch c {
case C.ERR:
// Unexpected error from blocking read
r.Close()
errorExit("Failed to read /dev/tty")
case C.KEY_UP:
return Event{Up, 0, nil}
case C.KEY_DOWN:
return Event{Down, 0, nil}
case C.KEY_LEFT:
return Event{Left, 0, nil}
case C.KEY_RIGHT:
return Event{Right, 0, nil}
case C.KEY_HOME:
return Event{Home, 0, nil}
case C.KEY_END:
return Event{End, 0, nil}
case C.KEY_BACKSPACE:
return Event{BSpace, 0, nil}
case C.KEY_F0 + 1:
return Event{F1, 0, nil}
case C.KEY_F0 + 2:
return Event{F2, 0, nil}
case C.KEY_F0 + 3:
return Event{F3, 0, nil}
case C.KEY_F0 + 4:
return Event{F4, 0, nil}
case C.KEY_F0 + 5:
return Event{F5, 0, nil}
case C.KEY_F0 + 6:
return Event{F6, 0, nil}
case C.KEY_F0 + 7:
return Event{F7, 0, nil}
case C.KEY_F0 + 8:
return Event{F8, 0, nil}
case C.KEY_F0 + 9:
return Event{F9, 0, nil}
case C.KEY_F0 + 10:
return Event{F10, 0, nil}
case C.KEY_F0 + 11:
return Event{F11, 0, nil}
case C.KEY_F0 + 12:
return Event{F12, 0, nil}
case C.KEY_DC:
return Event{Del, 0, nil}
case C.KEY_PPAGE:
return Event{PgUp, 0, nil}
case C.KEY_NPAGE:
return Event{PgDn, 0, nil}
case C.KEY_BTAB:
return Event{BTab, 0, nil}
case C.KEY_ENTER:
return Event{CtrlM, 0, nil}
case C.KEY_SLEFT:
return Event{SLeft, 0, nil}
case C.KEY_SRIGHT:
return Event{SRight, 0, nil}
case C.KEY_MOUSE:
var me C.MEVENT
if C.getmouse(&me) != C.ERR {
mod := ((me.bstate & C.BUTTON_SHIFT) | (me.bstate & C.BUTTON_CTRL) | (me.bstate & C.BUTTON_ALT)) > 0
x := int(me.x)
y := int(me.y)
/* Cannot use BUTTON1_DOUBLE_CLICKED due to mouseinterval(0) */
if (me.bstate & C.BUTTON1_PRESSED) > 0 {
now := time.Now()
if now.Sub(r.prevDownTime) < doubleClickDuration {
r.clickY = append(r.clickY, y)
} else {
r.clickY = []int{y}
r.prevDownTime = now
}
return Event{Mouse, 0, &MouseEvent{y, x, 0, true, false, mod}}
} else if (me.bstate & C.BUTTON1_RELEASED) > 0 {
double := false
if len(r.clickY) > 1 && r.clickY[0] == r.clickY[1] &&
time.Now().Sub(r.prevDownTime) < doubleClickDuration {
double = true
}
return Event{Mouse, 0, &MouseEvent{y, x, 0, false, double, mod}}
} else if (me.bstate&0x8000000) > 0 || (me.bstate&0x80) > 0 {
return Event{Mouse, 0, &MouseEvent{y, x, -1, false, false, mod}}
} else if (me.bstate & C.BUTTON4_PRESSED) > 0 {
return Event{Mouse, 0, &MouseEvent{y, x, 1, false, false, mod}}
}
}
return Event{Invalid, 0, nil}
case C.KEY_RESIZE:
return Event{Resize, 0, nil}
case ESC:
return escSequence()
case 127:
return Event{BSpace, 0, nil}
}
// CTRL-A ~ CTRL-Z
if c >= CtrlA && c <= CtrlZ {
return Event{int(c), 0, nil}
}
// Multi-byte character
buffer := []byte{byte(c)}
for {
r, _ := utf8.DecodeRune(buffer)
if r != utf8.RuneError {
return Event{Rune, r, nil}
}
c := C.getch()
if c == C.ERR {
break
}
if c >= C.KEY_CODE_YES {
C.ungetch(c)
break
}
buffer = append(buffer, byte(c))
}
return Event{Invalid, 0, nil}
}
func getch() byte {
return byte(C.getch())
}