feat: make menu creation into module

main.go

@@ -1,87 +1,10 @@
 package main
 
 import (
-	. "github.com/gbin/goncurses"
+  "gitlab.com/stvnliu/ai_game/menu"
-	"log"
-)
-
-const (
-	HEIGHT = 10
-	WIDTH  = 30
 )
 
 func main() {
-	var active int
+  menu_items := []string{"New game", "Continue", "Exit"}
-	menu := []string{"Choice 1", "Choice 2", "Choice 3", "Choice 4", "Exit"}
+  menu.CreateMenu(menu_items)
-
-	stdscr, err := Init()
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer End()
-
-	Raw(true)
-	Echo(false)
-	Cursor(0)
-	stdscr.Clear()
-	stdscr.Keypad(true)
-
-	my, mx := stdscr.MaxYX()
-	y, x := 2, (mx/2)-(WIDTH/2)
-
-	win, _ := NewWindow(HEIGHT, WIDTH, y, x)
-	win.Keypad(true)
-
-	stdscr.Print("Use arrow keys to go up and down, Press enter to select")
-	stdscr.Refresh()
-
-	printmenu(win, menu, active)
-
-	for {
-		ch := stdscr.GetChar()
-		switch Key(ch) {
-		case 'q':
-			return
-		case KEY_UP:
-			if active == 0 {
-				active = len(menu) - 1
-			} else {
-				active -= 1
-			}
-		case KEY_DOWN:
-			if active == len(menu)-1 {
-				active = 0
-			} else {
-				active += 1
-			}
-		case KEY_RETURN, KEY_ENTER, Key('\r'):
-			stdscr.MovePrintf(my-2, 0, "Choice #%d: %s selected",
-				active,
-				menu[active])
-			stdscr.ClearToEOL()
-			stdscr.Refresh()
-		default:
-			stdscr.MovePrintf(my-2, 0, "Character pressed = %3d/%c",
-				ch, ch)
-			stdscr.ClearToEOL()
-			stdscr.Refresh()
-		}
-
-		printmenu(win, menu, active)
-	}
-}
-
-func printmenu(w *Window, menu []string, active int) {
-	y, x := 2, 2
-	w.Box(0, 0)
-	for i, s := range menu {
-		if i == active {
-			w.AttrOn(A_REVERSE)
-			w.MovePrint(y+i, x, s)
-			w.AttrOff(A_REVERSE)
-		} else {
-			w.MovePrint(y+i, x, s)
-		}
-	}
-	w.Refresh()
 }

menu/menu.go

@@ -0,0 +1,85 @@
+package menu
+
+import (
+	. "github.com/gbin/goncurses"
+	"log"
+)
+
+const (
+	HEIGHT = 10
+	WIDTH  = 30
+)
+
+func CreateMenu(menu []string) {
+	var active int
+	stdscr, err := Init()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer End()
+
+	Raw(true)
+	Echo(false)
+	Cursor(0)
+	stdscr.Clear()
+	stdscr.Keypad(true)
+
+	my, mx := stdscr.MaxYX()
+	y, x := 2, (mx/2)-(WIDTH/2)
+
+	win, _ := NewWindow(HEIGHT, WIDTH, y, x)
+	win.Keypad(true)
+
+	stdscr.Print("Use arrow keys to go up and down, Press enter to select")
+	stdscr.Refresh()
+
+	printmenu(win, menu, active)
+
+	for {
+		ch := stdscr.GetChar()
+		switch Key(ch) {
+		case 'q':
+			return
+		case KEY_UP:
+			if active == 0 {
+				active = len(menu) - 1
+			} else {
+				active -= 1
+			}
+		case KEY_DOWN:
+			if active == len(menu)-1 {
+				active = 0
+			} else {
+				active += 1
+			}
+		case KEY_RETURN, KEY_ENTER, Key('\r'):
+			stdscr.MovePrintf(my-2, 0, "Choice #%d: %s selected",
+				active,
+				menu[active])
+			stdscr.ClearToEOL()
+			stdscr.Refresh()
+		default:
+			stdscr.MovePrintf(my-2, 0, "Character pressed = %3d/%c",
+				ch, ch)
+			stdscr.ClearToEOL()
+			stdscr.Refresh()
+		}
+
+		printmenu(win, menu, active)
+	}
+}
+
+func printmenu(w *Window, menu []string, active int) {
+	y, x := 2, 2
+	w.Box(0, 0)
+	for i, s := range menu {
+		if i == active {
+			w.AttrOn(A_REVERSE)
+			w.MovePrint(y+i, x, s)
+			w.AttrOff(A_REVERSE)
+		} else {
+			w.MovePrint(y+i, x, s)
+		}
+	}
+	w.Refresh()
+}