support controllers that aren't PlayerIndex.One

ROADMAP.md

@@ -33,7 +33,8 @@ These are the plans for what I want to be customizable via .config modification
 ## Misc
 
 - Optionally assign "close" keybind to a combination of stick buttons ☐
-- Choose an XInput device instead of defaulting to whichever one is considered player 1 ☐
-	- "Press Start" prompt if ambiguous, save to config file?
+- Choose an XInput device instead of defaulting to whichever one is considered player 1 🗹
+	- ~~"Press Start" prompt if ambiguous, save to config file?~~
+	- Every frame, just use the controller with the lowest index and any input
 - Keybinds to generate .config file and default images in execution folder ☐
 	- This would allow the distribution of just the .exe file. If someone wishes to customize, those default resources could be generated from the program

sticky_viewer/Display.cs

@@ -1,6 +1,7 @@
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 using Microsoft.Xna.Framework.Input;
+using System;
 using System.Collections.Generic;
 using System.Configuration;
 using System.IO;
@@ -47,7 +48,6 @@ namespace sticky_viewer
         private Texture2D C;
         private Texture2D J;
         private Texture2D S;
-
         public Display()
         {
             graphics = new GraphicsDeviceManager(this);
@@ -149,7 +149,15 @@ namespace sticky_viewer
                 Exit();
             }
 
-            GamePadDPad dpad = GamePad.GetState(PlayerIndex.One).DPad;
+            // Find the controller being used currently
+            GamePadState emptyInput = new GamePadState();
+            GamePadState currentState = new GamePadState();
+            foreach (PlayerIndex p in Enum.GetValues(typeof(PlayerIndex)))
+            {
+                if ((currentState = GamePad.GetState(p)) != emptyInput) { break; }
+            }
+
+            GamePadDPad dpad = currentState.DPad;
 
             if (dpad.Up == ButtonState.Pressed && dpad.Left == ButtonState.Pressed)
             {
@@ -188,8 +196,6 @@ namespace sticky_viewer
                 stick = neutral;
             }
 
-            GamePadState currentState = GamePad.GetState(PlayerIndex.One);
-
             Dictionary<string, bool> inputs = new Dictionary<string, bool>()
             {
                 {"A", currentState.Buttons.A == ButtonState.Pressed},