From fce37403bbc29521b2b5bd983291b3730f8ad7b4 Mon Sep 17 00:00:00 2001
From: Star Rauchenberger <fefferburbia@gmail.com>
Date: Sat, 13 Mar 2021 12:24:05 -0500
Subject: Added submenus

#7
---
 src/menu.cpp | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

(limited to 'src/menu.cpp')

diff --git a/src/menu.cpp b/src/menu.cpp
index 4da4574..cfb0dd6 100644
--- a/src/menu.cpp
+++ b/src/menu.cpp
@@ -1,12 +1,25 @@
 #include "menu.h"
 
-std::vector<MenuItem> CreateMenu(const std::vector<MenuBuilder>& builders) {
-  std::vector<MenuItem> result;
-  result.reserve(builders.size());
+Menu::Menu(const std::vector<MenuBuilder>& builders) {
+  items_.reserve(builders.size());
 
   for (const MenuBuilder& builder : builders) {
-    result.push_back(builder.Build());
+    items_.push_back(builder.Build());
   }
+}
+
+void Menu::moveCursorUp() {
+  cursor_--;
 
-  return result;
+  if (cursor_ < 0) {
+    cursor_ = items_.size() - 1;
+  }
+}
+
+void Menu::moveCursorDown() {
+  cursor_++;
+
+  if (cursor_ >= items_.size()) {
+    cursor_ = 0;
+  }
 }
-- 
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