From 403a81d0fb7cd9756e6bbff3ee952a1cbbde0c5b Mon Sep 17 00:00:00 2001
From: iegod <diegob@gmail.com>
Date: Fri, 25 Aug 2023 11:59:14 -0400
Subject: [PATCH] Various menu improvements: dimension setter, menu rendering
 refactored, menu selection metadata and accessor added.

---
 examples/splashmenu/scenes/menu.go | 36 ++++++++++++++++++++++--------
 1 file changed, 27 insertions(+), 9 deletions(-)

diff --git a/examples/splashmenu/scenes/menu.go b/examples/splashmenu/scenes/menu.go
index efac856..c4e9ffc 100644
--- a/examples/splashmenu/scenes/menu.go
+++ b/examples/splashmenu/scenes/menu.go
@@ -51,10 +51,12 @@ func init() {
 }
 
 type Menu struct {
-	bgcolor   color.RGBA
-	increment int
-	options   map[int]MenuOption
-	events    map[groovy.SceneEvent]func()
+	Dimensions    groovy.Area
+	bgcolor       color.RGBA
+	increment     int
+	options       map[int]MenuOption
+	events        map[groovy.SceneEvent]func()
+	menuSelection uint
 }
 
 func NewMenu() Menu {
@@ -68,10 +70,13 @@ func (m *Menu) Draw(screen *ebiten.Image) {
 	screen.Fill(m.bgcolor)
 	text.Draw(screen, "menu", titleFont, 40, 40, color.White)
 
-	bgcolor := " 0x" + strconv.FormatUint(uint64(m.bgcolor.R), 16) + " 0x" + strconv.FormatUint(uint64(m.bgcolor.G), 16) + " 0x" + strconv.FormatUint(uint64(m.bgcolor.B), 16)
+	m.RenderMetadata(screen)
+	m.RenderMenu(screen)
+}
 
+func (m *Menu) RenderMetadata(screen *ebiten.Image) {
+	bgcolor := " 0x" + strconv.FormatUint(uint64(m.bgcolor.R), 16) + " 0x" + strconv.FormatUint(uint64(m.bgcolor.G), 16) + " 0x" + strconv.FormatUint(uint64(m.bgcolor.B), 16)
 	text.Draw(screen, bgcolor, menuFont, 40, 700, color.White)
-	m.RenderOptions(screen)
 }
 
 func (m Menu) SetEventHandler(event groovy.SceneEvent, f func()) {
@@ -86,10 +91,17 @@ func (m *Menu) SetOptions(options map[int]MenuOption) {
 	}
 }
 
-func (m *Menu) RenderOptions(screen *ebiten.Image) {
+// sets sene dimensions
+func (m *Menu) SetDimensions(a groovy.Area) {
+	m.Dimensions = a
+}
+
+func (m *Menu) RenderMenu(screen *ebiten.Image) {
 
 	var offset int = 20
 
+	screen.Set(m.Dimensions.Width/2, m.Dimensions.Height/2, color.RGBA{0xFF, 0x00, 0x00, 0xFF})
+
 	for k, v := range m.options {
 		m.options[k] = v
 		text.Draw(screen, strconv.Itoa(k)+": "+v.Description, menuFont, 40, 60+offset*k, color.White)
@@ -103,17 +115,19 @@ func (m *Menu) Update() error {
 	var keysPressed []ebiten.Key
 	keysPressed = inpututil.AppendPressedKeys(keysPressed[:0])
 
-	for _, o := range m.options {
+	for idx, o := range m.options {
 		if m.events[o.SelectionEvent] != nil {
 			for _, k := range keysPressed {
 				if k == o.Mapping {
+					m.menuSelection = uint(idx)
 					m.events[o.SelectionEvent]()
 				}
 			}
 		}
 	}
 
-	colorOffset := uint8(int(math.Sin(float64(m.increment)/300) * 6))
+	//m.UpdateNoise()
+	colorOffset := uint8(int(math.Sin(float64(m.increment)/60) * 25))
 
 	m.bgcolor.R = (colorOffset + backgroundBaseColor.R) % 0xFF
 	m.bgcolor.G = (colorOffset + backgroundBaseColor.G) % 0xFF
@@ -121,3 +135,7 @@ func (m *Menu) Update() error {
 
 	return nil
 }
+
+func (m *Menu) GetMenuSelection() uint {
+	return m.menuSelection
+}