Add initial menu system

2021-04-22 23:03:05 +02:00
parent a393d7e1fa
commit 05657b14dd
5 changed files with 121 additions and 1 deletions
@@ -0,0 +1,100 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using EvilSatellites.Menu;
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Input;
+using DavyKager;
+
+namespace EvilSatellites.Screens
+{
+    public class MenuScreen : IScreen
+    {
+        public MenuContainer MenuOptions;
+        public int CursorPosition;
+        public ScreenManager _Manager;
+        public ScreenState _State;
+        public InputManager Inputs = new InputManager();
+        public MenuScreen(ScreenManager manager, MenuContainer options)
+        {
+            _Manager = manager;
+            MenuOptions = options;
+        }
+
+        ScreenManager IScreen.Manager { get => _Manager; set => _Manager = value; }
+        ScreenState IScreen.State { get => _State; set => _State = value; }
+
+        void IScreen.Activate()
+        {
+            CursorPosition = 0;
+            Tolk.Output(MenuOptions.Title, true);
+            Tolk.Output(MenuOptions.Description, false);
+            Tolk.Output(MenuOptions.Entries[CursorPosition].Name);
+        }
+
+        void IScreen.Deactivate()
+        {
+            return;
+        }
+
+        void IScreen.HandleInput(GameTime gameTime, KeyboardState inputs)
+        {
+            Inputs.Update();
+            if (Inputs.IsJustPressed(Keys.Down))
+            {
+                NextItem();
+            }
+            if (Inputs.IsJustPressed(Keys.Down))
+            {
+                PreviousItem();
+            }
+            if (Inputs.IsJustPressed(Keys.Enter))
+            {
+                SelectItem();
+            }
+        }
+
+        void IScreen.Update(GameTime gameTime)
+        {
+            return;
+        }
+
+        public void PreviousItem()
+        {
+            CursorPosition--;
+            CheckMenuBounds();
+            ReadMenuItem();
+        }
+
+        public void NextItem()
+        {
+            CursorPosition++;
+            CheckMenuBounds();
+            ReadMenuItem();
+        }
+
+        public void CheckMenuBounds()
+        {
+            if (CursorPosition > MenuOptions.Entries.Count-1)
+            {
+                CursorPosition = 0;
+            }
+            if (CursorPosition < 0)
+            {
+                CursorPosition = MenuOptions.Entries.Count - 1;
+            }
+        }
+
+        public void ReadMenuItem()
+        {
+            Tolk.Output(MenuOptions.Entries[CursorPosition].Name, true);
+        }
+
+        public void SelectItem()
+        {
+            return;
+        }
+    }
+}