From 96b0990418e11ba4d3159a8a4730402d74ca4193 Mon Sep 17 00:00:00 2001
From: cosmonaut <evan@moonside.games>
Date: Thu, 6 Aug 2020 16:22:24 -0700
Subject: [PATCH] use relative mouse extension

---
 FNA                            |  2 +-
 Kav                            |  2 +-
 KavTest/Engines/InputEngine.cs | 21 +--------------------
 KavTest/KavTestGame.cs         |  4 +++-
 4 files changed, 6 insertions(+), 23 deletions(-)

diff --git a/FNA b/FNA
index c665d2e..d926c53 160000
--- a/FNA
+++ b/FNA
@@ -1 +1 @@
-Subproject commit c665d2e08c25fb63e58e987b7c1af75af22aa010
+Subproject commit d926c536dc34186d64464154c72e8ba2cc187ed8
diff --git a/Kav b/Kav
index 55b1555..2d1a50e 160000
--- a/Kav
+++ b/Kav
@@ -1 +1 @@
-Subproject commit 55b1555df2ded543e623c8b5eb60d3a3fff9e32c
+Subproject commit 2d1a50e1c439e0d511de82eab6cd2481b1c011f8
diff --git a/KavTest/Engines/InputEngine.cs b/KavTest/Engines/InputEngine.cs
index 8338082..e9430ab 100644
--- a/KavTest/Engines/InputEngine.cs
+++ b/KavTest/Engines/InputEngine.cs
@@ -13,26 +13,10 @@ namespace KavTest.Engines
     )]
     public class InputEngine : Engine
     {
-        private int centerX;
-        private int centerY;
-
-        public InputEngine(int centerX, int centerY)
-        {
-            this.centerX = centerX;
-            this.centerY = centerY;
-            Mouse.SetPosition(centerX, centerY);
-            System.Console.WriteLine("initialize mouse position");
-            System.Console.WriteLine(Mouse.GetState().X);
-            System.Console.WriteLine(Mouse.GetState().Y);
-        }
-
         public override void Update(double dt)
         {
             var keyboardState = Keyboard.GetState();
             var mouseState = Mouse.GetState();
-            System.Console.WriteLine("mouse position");
-            System.Console.WriteLine(mouseState.X);
-            System.Console.WriteLine(mouseState.Y);
 
             if (keyboardState.IsKeyDown(Keys.W))
             {
@@ -54,13 +38,10 @@ namespace KavTest.Engines
                 SendMessage(new MoveCameraMessage(new Vector3(5, 0, 0)));
             }
 
-            var mouseMovement = new Vector2(centerX - mouseState.X, centerY - mouseState.Y);
-            Mouse.SetPosition(centerX, centerY);
-
             if (SomeComponent<CameraComponent>())
             {
                 var cameraEntity = ReadEntity<CameraComponent>();
-                SendMessage(new RotateCameraMessage(cameraEntity, mouseMovement.X, mouseMovement.Y));
+                SendMessage(new RotateCameraMessage(cameraEntity, -mouseState.X, -mouseState.Y));
             }
         }
     }
diff --git a/KavTest/KavTestGame.cs b/KavTest/KavTestGame.cs
index 55140c2..f9b9107 100644
--- a/KavTest/KavTestGame.cs
+++ b/KavTest/KavTestGame.cs
@@ -27,6 +27,8 @@ namespace KavTest
 
             Window.AllowUserResizing = true;
             IsMouseVisible = true;
+            
+            Microsoft.Xna.Framework.Input.Mouse.IsRelativeMouseModeEXT = true;
         }
 
         protected override void LoadContent()
@@ -48,7 +50,7 @@ namespace KavTest
                 Smuggler.Importer.ImportGLB(GraphicsDevice, File.OpenRead("Content/rustysphere.glb"))
             );
 
-            WorldBuilder.AddEngine(new InputEngine(GraphicsDevice.Viewport.Width / 2, GraphicsDevice.Viewport.Height / 2));
+            WorldBuilder.AddEngine(new InputEngine());
             WorldBuilder.AddEngine(new AngularVelocityEngine());
             WorldBuilder.AddEngine(new MotionEngine());
             WorldBuilder.AddEngine(new CameraEngine());