func main() {
stdscr, err := goncurses.Init()
if err != nil {
log.Fatal("init", err)
}
defer goncurses.End()
goncurses.Raw(true) // turn on raw "uncooked" input
goncurses.Echo(false) // turn echoing of typed characters off
goncurses.Cursor(0) // hide cursor
stdscr.Keypad(true) // allow keypad input
stdscr.Print("Press a key...")
stdscr.Refresh()
if ch := stdscr.GetChar(); ch == goncurses.KEY_F2 {
stdscr.Print("The F2 key was pressed.")
} else {
stdscr.Print("The key pressed is: ")
stdscr.AttrOn(goncurses.A_BOLD)
stdscr.AddChar(goncurses.Char(ch))
stdscr.AttrOff(goncurses.A_BOLD)
}
stdscr.Refresh()
stdscr.GetChar()
}
func main() {
stdscr, err := gc.Init()
if err != nil {
log.Fatal(err)
}
defer gc.End()
gc.Cursor(0)
gc.Echo(false)
stdscr.Print("A reversed plus-minus symbol: ")
stdscr.AddChar(gc.ACS_PLMINUS | gc.A_REVERSE)
stdscr.Refresh()
stdscr.GetChar()
}
func main() {
stdscr, err := goncurses.Init()
if err != nil {
log.Fatal("init:", err)
}
defer goncurses.End()
goncurses.Raw(true)
goncurses.Echo(false)
goncurses.Cursor(0)
stdscr.Clear()
stdscr.Keypad(true)
menu_items := []string{"Choice 1", "Choice 2", "Choice 3", "Choice 4",
"Exit"}
items := make([]*goncurses.MenuItem, len(menu_items))
for i, val := range menu_items {
items[i], _ = goncurses.NewItem(val, "")
defer items[i].Free()
}
menu, err := goncurses.NewMenu(items)
if err != nil {
stdscr.Print(err)
return
}
defer menu.Free()
menu.Post()
stdscr.MovePrint(20, 0, "'q' to exit")
stdscr.Refresh()
for {
goncurses.Update()
ch := stdscr.GetChar()
switch goncurses.KeyString(ch) {
case "q":
return
case "down":
menu.Driver(goncurses.REQ_DOWN)
case "up":
menu.Driver(goncurses.REQ_UP)
}
}
}
func main() {
stdscr, err := gc.Init()
if err != nil {
log.Fatal(err)
}
defer gc.End()
// Turn off character echo, hide the cursor and disable input buffering
gc.Echo(false)
gc.CBreak(true)
gc.Cursor(0)
stdscr.Print("Use arrow keys to move the window. Press 'q' to exit")
stdscr.NoutRefresh()
// Determine the center of the screen and offset those coordinates by
// half of the window size we are about to create. These coordinates will
// be used to move our window around the screen
rows, cols := stdscr.MaxYX()
height, width := 5, 10
y, x := (rows-height)/2, (cols-width)/2
// Create a new window centered on the screen and enable the use of the
// keypad on it so the arrow keys are available
var win *gc.Window
win, err = gc.NewWindow(height, width, y, x)
if err != nil {
log.Fatal(err)
}
win.Keypad(true)
main:
for {
// Clear the section of screen where the box is currently located so
// that it is blanked by calling Erase on the window and refreshing it
// so that the chances are sent to the virtual screen but not actually
// output to the terminal
win.Erase()
win.NoutRefresh()
// Move the window to it's new location (if any) and redraw it
win.MoveWindow(y, x)
win.Box(gc.ACS_VLINE, gc.ACS_HLINE)
win.NoutRefresh()
// Update will flush only the characters which have changed between the
// physical screen and the virtual screen, minimizing the number of
// characters which must be sent
gc.Update()
// In order for the window to display correctly, we must call GetChar()
// on it rather than stdscr
switch win.GetChar() {
case 'q':
break main
case gc.KEY_LEFT:
if x > 0 {
x--
}
case gc.KEY_RIGHT:
if x < cols-width {
x++
}
case gc.KEY_UP:
if y > 1 {
y--
}
case gc.KEY_DOWN:
if y < rows-height {
y++
}
}
}
win.Delete()
}
func main() {
stdscr, _ := gc.Init()
defer gc.End()
gc.StartColor()
gc.Raw(true)
gc.Echo(false)
gc.Cursor(0)
stdscr.Keypad(true)
gc.InitPair(1, gc.C_RED, gc.C_BLACK)
// build the menu items
menu_items := []string{"Choice 1", "Choice 2", "Choice 3", "Choice 4",
"Exit"}
items := make([]*gc.MenuItem, len(menu_items))
for i, val := range menu_items {
items[i], _ = gc.NewItem(val, "")
defer items[i].Free()
}
// create the menu
menu, _ := gc.NewMenu(items)
defer menu.Free()
menuwin, _ := gc.NewWindow(10, 40, 4, 14)
menuwin.Keypad(true)
menu.SetWindow(menuwin)
dwin := menuwin.Derived(6, 38, 3, 1)
menu.SubWindow(dwin)
menu.Mark(" * ")
// Print centered menu title
y, x := menuwin.MaxYX()
title := "My Menu"
menuwin.Box(0, 0)
menuwin.ColorOn(1)
menuwin.MovePrint(1, (x/2)-(len(title)/2), title)
menuwin.ColorOff(1)
menuwin.MoveAddChar(2, 0, gc.ACS_LTEE)
menuwin.HLine(2, 1, gc.ACS_HLINE, x-3)
menuwin.MoveAddChar(2, x-2, gc.ACS_RTEE)
y, x = stdscr.MaxYX()
stdscr.MovePrint(y-2, 1, "'q' to exit")
stdscr.Refresh()
menu.Post()
defer menu.UnPost()
menuwin.Refresh()
for {
gc.Update()
ch := menuwin.GetChar()
switch ch {
case 'q':
return
case gc.KEY_DOWN:
menu.Driver(gc.REQ_DOWN)
case gc.KEY_UP:
menu.Driver(gc.REQ_UP)
}
}
}
func main() {
var active int
menu := []string{"Choice 1", "Choice 2", "Choice 3", "Choice 4", "Exit"}
stdscr, err := gc.Init()
if err != nil {
log.Fatal("init:", err)
}
defer gc.End()
gc.Raw(true)
gc.Echo(false)
gc.Cursor(0)
stdscr.Keypad(true)
y, x := 5, 2
win, err := gc.NewWindow(HEIGHT, WIDTH, y, x)
if err != nil {
log.Fatal("new_window:", err)
}
stdscr.MovePrint(0, 0, "Use up/down arrow keys, enter to "+
"select or 'q' to quit")
stdscr.MovePrint(1, 0, "You may also left mouse click on an entry to select")
stdscr.Refresh()
printmenu(win, menu, active)
// Check to see if the Mouse is available. This function was not available
// in older versions of ncurses (5.7 and older) and may return false even
// if the mouse is in fact avaiable for use.
if gc.MouseOk() {
stdscr.MovePrint(3, 0, "WARN: Mouse support not detected.")
}
// Adjust the default mouse-click sensitivity to make it more responsive
gc.MouseInterval(50)
// If, for example, you are temporarily disabling the mouse or are
// otherwise altering mouse button detection temporarily, you could
// pass a pointer to a MouseButton object as the 2nd argument to
// record that information. Invocation may look something like:
var prev gc.MouseButton
gc.MouseMask(gc.M_B1_PRESSED, nil) // only detect left mouse clicks
gc.MouseMask(gc.M_ALL, &prev) // temporarily enable all mouse clicks
gc.MouseMask(prev, nil) // change it back
for {
ch := stdscr.GetChar()
switch ch {
case 'q':
return
case gc.KEY_UP:
if active == 0 {
active = len(menu) - 1
} else {
active -= 1
}
case gc.KEY_DOWN:
if active == len(menu)-1 {
active = 0
} else {
active += 1
}
case gc.KEY_MOUSE:
/* pull the mouse event off the queue */
md := gc.GetMouse()
new := getactive(x, y, md.X, md.Y, menu)
if new != -1 {
active = new
}
stdscr.MovePrintf(23, 0, "Choice #%d: %s selected", active+1,
menu[active])
stdscr.ClearToEOL()
stdscr.Refresh()
case gc.KEY_RETURN, gc.KEY_ENTER, gc.Key('\r'):
stdscr.MovePrintf(23, 0, "Choice #%d: %s selected", active+1,
menu[active])
stdscr.ClearToEOL()
stdscr.Refresh()
default:
stdscr.MovePrintf(23, 0, "Character pressed = %3d/%c", ch, ch)
stdscr.ClearToEOL()
stdscr.Refresh()
}
printmenu(win, menu, active)
}
}
func main() {
stdscr, _ := gc.Init()
defer gc.End()
gc.StartColor()
gc.Raw(true)
gc.Echo(false)
gc.Cursor(0)
stdscr.Keypad(true)
// build the menu items
menu_items := []string{
"Choice 1",
"Choice 2",
"Choice 3",
"Choice 4",
"Choice 5",
"Choice 6",
"Choice 7",
"Exit"}
items := make([]*gc.MenuItem, len(menu_items))
for i, val := range menu_items {
items[i], _ = gc.NewItem(val, "")
defer items[i].Free()
}
// create the menu
menu, _ := gc.NewMenu(items)
defer menu.Free()
menu.Option(gc.O_ONEVALUE, false)
y, _ := stdscr.MaxYX()
stdscr.MovePrint(y-3, 0, "Use up/down arrows to move, spacebar to "+
"toggle and enter to print. 'q' to exit")
stdscr.Refresh()
menu.Post()
defer menu.UnPost()
for {
gc.Update()
ch := stdscr.GetChar()
switch ch {
case 'q':
return
case ' ':
menu.Driver(gc.REQ_TOGGLE)
case gc.KEY_RETURN, gc.KEY_ENTER:
var list string
for _, item := range menu.Items() {
if item.Value() {
list += "\"" + item.Name() + "\" "
}
}
stdscr.Move(20, 0)
stdscr.ClearToEOL()
stdscr.MovePrint(20, 0, list)
stdscr.Refresh()
default:
menu.Driver(gc.DriverActions[ch])
}
}
}
func main() {
stdscr, err := gc.Init()
if err != nil {
log.Fatal("init:", err)
}
defer gc.End()
gc.StartColor()
gc.Raw(true)
gc.Echo(false)
gc.Cursor(0)
stdscr.Keypad(true)
gc.InitPair(1, gc.C_RED, gc.C_BLACK)
gc.InitPair(2, gc.C_GREEN, gc.C_BLACK)
gc.InitPair(3, gc.C_MAGENTA, gc.C_BLACK)
// build the menu items
menu_items := []string{
"Choice 1",
"Choice 2",
"Choice 3",
"Choice 4",
"Choice 5",
"Exit"}
items := make([]*gc.MenuItem, len(menu_items))
for i, val := range menu_items {
items[i], _ = gc.NewItem(val, "")
defer items[i].Free()
if i == 2 || i == 4 {
items[i].Selectable(false)
}
}
// create the menu
menu, _ := gc.NewMenu(items)
defer menu.Free()
y, _ := stdscr.MaxYX()
stdscr.MovePrint(y-3, 0, "Use up/down arrows to move; 'q' to exit")
stdscr.Refresh()
menu.SetForeground(gc.ColorPair(1) | gc.A_REVERSE)
menu.SetBackground(gc.ColorPair(2) | gc.A_BOLD)
menu.Grey(gc.ColorPair(3) | gc.A_BOLD)
menu.Post()
defer menu.UnPost()
for {
gc.Update()
ch := stdscr.GetChar()
switch ch {
case ' ':
menu.Driver(gc.REQ_TOGGLE)
case 'q':
return
case gc.KEY_RETURN:
stdscr.Move(20, 0)
stdscr.ClearToEOL()
stdscr.Printf("Item selected is: %s", menu.Current(nil).Name())
menu.PositionCursor()
default:
menu.Driver(gc.DriverActions[ch])
}
}
}
func main() {
f, err := os.Create("err.log")
if err != nil {
log.Fatal(err)
}
defer f.Close()
log.SetOutput(f)
var stdscr *gc.Window
stdscr, err = gc.Init()
if err != nil {
log.Println("Init:", err)
}
defer gc.End()
rand.Seed(time.Now().Unix())
gc.StartColor()
gc.Cursor(0)
gc.Echo(false)
gc.HalfDelay(1)
gc.InitPair(1, gc.C_WHITE, gc.C_BLACK)
gc.InitPair(2, gc.C_YELLOW, gc.C_BLACK)
gc.InitPair(3, gc.C_MAGENTA, gc.C_BLACK)
gc.InitPair(4, gc.C_RED, gc.C_BLACK)
gc.InitPair(5, gc.C_BLUE, gc.C_BLACK)
gc.InitPair(6, gc.C_GREEN, gc.C_BLACK)
lines, cols := stdscr.MaxYX()
pl, pc := lines, cols*3
ship := newShip(lines/2, 5)
objects = append(objects, ship)
field := genStarfield(pl, pc)
text := stdscr.Duplicate()
c := time.NewTicker(time.Second / 2)
c2 := time.NewTicker(time.Second / 16)
px := 0
loop:
for {
text.MovePrintf(0, 0, "Life: [%-5s]", lifeToText(ship.life))
stdscr.Erase()
stdscr.Copy(field.Window, 0, px, 0, 0, lines-1, cols-1, true)
drawObjects(stdscr)
stdscr.Overlay(text)
stdscr.Refresh()
select {
case <-c.C:
spawnAsteroid(stdscr.MaxYX())
if px+cols >= pc {
break loop
}
px++
case <-c2.C:
updateObjects(stdscr.MaxYX())
drawObjects(stdscr)
default:
if !handleInput(stdscr, ship) || ship.Expired(-1, -1) {
break loop
}
}
}
msg := "Game Over"
end, err := gc.NewWindow(5, len(msg)+4, (lines/2)-2, (cols-len(msg))/2)
if err != nil {
log.Fatal("game over:", err)
}
end.MovePrint(2, 2, msg)
end.Box(gc.ACS_VLINE, gc.ACS_HLINE)
end.Refresh()
gc.Nap(2000)
}
func main() {
stdscr, _ := gc.Init()
defer gc.End()
gc.StartColor()
gc.Raw(true)
gc.Echo(false)
gc.Cursor(0)
stdscr.Keypad(true)
gc.InitPair(1, gc.C_RED, gc.C_BLACK)
gc.InitPair(2, gc.C_CYAN, gc.C_BLACK)
// build the menu items
menu_items := []string{
"Choice 1",
"Choice 2",
"Choice 3",
"Choice 4",
"Choice 5",
"Choice 6",
"Choice 7",
"Choice 8",
"Choice 9",
"Choice 10",
"Exit"}
items := make([]*gc.MenuItem, len(menu_items))
for i, val := range menu_items {
items[i], _ = gc.NewItem(val, "")
defer items[i].Free()
}
// create the menu
menu, _ := gc.NewMenu(items)
defer menu.Free()
menuwin, _ := gc.NewWindow(HEIGHT, WIDTH, 4, 14)
menuwin.Keypad(true)
menu.SetWindow(menuwin)
dwin := menuwin.Derived(6, 38, 3, 1)
menu.SubWindow(dwin)
menu.Format(5, 1)
menu.Mark(" * ")
// Print centered menu title
title := "My Menu"
menuwin.Box(0, 0)
menuwin.ColorOn(1)
menuwin.MovePrint(1, (WIDTH/2)-(len(title)/2), title)
menuwin.ColorOff(1)
menuwin.MoveAddChar(2, 0, gc.ACS_LTEE)
menuwin.HLine(2, 1, gc.ACS_HLINE, WIDTH-2)
menuwin.MoveAddChar(2, WIDTH-1, gc.ACS_RTEE)
y, _ := stdscr.MaxYX()
stdscr.ColorOn(2)
stdscr.MovePrint(y-3, 1,
"Use up/down arrows or page up/down to navigate. 'q' to exit")
stdscr.ColorOff(2)
stdscr.Refresh()
menu.Post()
defer menu.UnPost()
menuwin.Refresh()
for {
gc.Update()
if ch := menuwin.GetChar(); ch == 'q' {
return
} else {
menu.Driver(gc.DriverActions[ch])
}
}
}