ui starting, menu screen, ingame help

engine/screens/menu.go

@@ -0,0 +1,116 @@
+package screens
+
+import (
+	"lab.zaar.be/thefish/alchemyst-go/engine/types"
+	"lab.zaar.be/thefish/alchemyst-go/ui/mainwindow"
+	blt "lab.zaar.be/thefish/bearlibterminal"
+	"strings"
+)
+
+const runeIndex = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+type MenuScreen struct {
+	*types.Rect
+
+	mw           *mainwindow.MainWindow
+	scm          *types.ScreenManager
+	renderParent bool
+
+	items   []interface{}
+	title   string
+	header  string
+	footer  string
+	redraw  bool
+	bgColor string
+	fgColor string
+}
+
+func NewMenuScreen(mw *mainwindow.MainWindow, scm *types.ScreenManager, title, header, footer string, rect *types.Rect, renderParent bool) *MenuScreen {
+	return &MenuScreen{
+		title:        title,
+		header:       header,
+		footer:       footer,
+		Rect:         rect,
+		mw:           mw,
+		scm:          scm,
+		renderParent: renderParent,
+	}
+}
+
+func (ms *MenuScreen) SetBgColor(color string) *MenuScreen {
+	ms.bgColor = color
+	return ms
+}
+
+func (ms *MenuScreen) SetFgColor(color string) *MenuScreen {
+	ms.fgColor = color
+	return ms
+}
+
+//fixme!!
+
+func (ms *MenuScreen) SetItems(items []interface{}) *MenuScreen {
+	ms.items = items
+	return ms
+}
+
+func (ms *MenuScreen) UseEcs() bool { return false }
+
+func (ms *MenuScreen) Enter() {
+	ms.redraw = true
+}
+
+func (ms *MenuScreen) HandleInput(input string) {
+	//
+	//if input != "" {
+	//	ms.redraw = true
+	//}
+
+	switch input {
+	case "Space":
+		ms.scm.SetScreen(ms.scm.PreviousScreen)
+		break
+	}
+}
+
+func (ms *MenuScreen) Exit() {
+	menuLayer := ms.mw.GetLayer("menu")
+	menuLayer.ClearRect(ms.Rect)
+	bgLayer := ms.mw.GetLayer("menubg")
+	bgLayer.ClearRect(ms.Rect)
+}
+
+func (ms *MenuScreen) Render() {
+	if ms.renderParent {
+		ms.scm.PreviousScreen.Render()
+	}
+	if (ms.redraw || ms.renderParent) {
+		ms.redraw = false
+		menuLayer := ms.mw.GetLayer("menu")
+		menuLayer.ClearRect(ms.Rect)
+		bgLayer := ms.mw.GetLayer("menubg")
+		bgLayer.ClearRect(ms.Rect)
+		bgLayer.WithColor(ms.bgColor).NewWindow(ms.Rect).Splash()
+		menuLayer.WithColor(ms.fgColor).NewWindow(ms.Rect).DoubleBordered(ms.title)
+		menuLayer.Print(ms.X+(ms.W/2)-7, ms.Y+ms.H-1, "╡"+"[color=green]Space[/color] to close"+"╞")
+		footerHeight := 0
+		if ms.footer != "" {
+			_, footerHeight = menuLayer.PrintInside(ms.Rect, ms.footer, 9)
+			footerHeight = footerHeight + 2
+		}
+		_, headerHeight := menuLayer.PrintInside(ms.Rect, ms.header, blt.TK_ALIGN_LEFT)
+		itemField := types.Rect{ms.X, ms.Y + headerHeight + 1, ms.W, ms.H - headerHeight - footerHeight}
+		_ = itemField
+		if (len(ms.items) > 0) {
+			//fixme itemfield object, scroller, inputhandler, current selected item
+			menuItems := make([]string, 0)
+			for i, _ := range ms.items {
+				if string(ms.items[i].(string)) != "" {
+					menuItems = append(menuItems, ms.items[i].(string))
+				}
+			}
+			menuLayer.PrintInside(&itemField, strings.Join(menuItems, "\n"), blt.TK_ALIGN_LEFT)
+
+		}
+	}
+}