Added the game scene

There are no berries yet and the bird floats if the screen size isnt
1920 by 1080 but I am still making good progress

Scripts/Player.cs

@@ -0,0 +1,29 @@
+using Godot;
+using System;
+
+public partial class Player : Node2D {
+    private float MovementSpeed = 800f;
+
+    public override void _Ready() {
+        Position = new Vector2(x: DisplayServer.WindowGetSize().X / 2, y: 0);
+    }
+
+    public override void _Process(double delta) {
+        var ScreenSize = GetViewport().GetVisibleRect().Size;
+        var WindowSize = DisplayServer.WindowGetSize();
+        var Scale = WindowSize / ScreenSize;
+
+        Vector2 Pos = Position;
+        Pos.Y = (DisplayServer.WindowGetSize().Y - 90) / Scale.Y;
+
+        if (Input.IsKeyPressed((Key)Key.Left) || Input.IsKeyPressed((Key)Key.A)) {
+            Pos.X -= MovementSpeed * (float)delta;
+        }
+
+        if (Input.IsKeyPressed((Key)Key.Right) || Input.IsKeyPressed((Key)Key.D)) {
+            Pos.X += MovementSpeed * (float)delta;
+        }
+
+        Position = Pos;
+    }
+}