Remove old C# reference code

Player.cs

@@ -1,158 +0,0 @@
-using Godot;
-using System;
-
-public partial class Player : CharacterBody3D
-{
-	public float MouseSensitivity { get; set; } = 0.2F;
-
-	/// <summary> Time after pressing the jump button a jump may occur late. </summary>
-	public TimeSpan JumpEarlyTime { get; set; } = TimeSpan.FromSeconds(0.2);
-
-	/// <summary> Time after leaving a jumpable surface when a jump may still occur. </summary>
-	public TimeSpan JumpCoyoteTime { get; set; } = TimeSpan.FromSeconds(0.2);
-
-	public Vector3 Gravity     { get; set; } = new(0, -12.0F, 0);
-	public float JumpVelocity  { get; set; } =  5.0F;
-	public float MoveAccel     { get; set; } =  6.0F;
-	public float MaxMoveSpeed  { get; set; } =  4.0F;
-	public float FrictionFloor { get; set; } = 12.0F;
-	public float FrictionAir   { get; set; } =  2.0F;
-
-	public enum MovementMode { Default, Flying, NoClip }
-	public MovementMode Movement { get; set; } = MovementMode.Default;
-
-
-	private Node3D _neckBone = null!;
-	private Node3D _headBone = null!;
-	private Camera3D _camera = null!;
-
-	private DateTime? _jumpPressed = null;
-	private DateTime? _lastOnFloor = null;
-
-	public bool IsSprinting { get; private set; }
-
-
-	public override void _Ready()
-	{
-		_neckBone = GetNode<Node3D>("Neck");
-		_headBone = GetNode<Node3D>("Neck/Head");
-		_camera = GetNode<Camera3D>("Neck/Head/Camera");
-	}
-
-	public override void _Input(InputEvent ev)
-	{
-		// Inputs that are valid when the game is focused.
-		// ===============================================
-
-		if (ev.IsAction("move_sprint"))
-		{
-			IsSprinting = ev.IsPressed();
-			GetViewport().SetInputAsHandled();
-		}
-
-		if (ev.IsActionPressed("move_jump"))
-		{
-			_jumpPressed = DateTime.Now;
-			GetViewport().SetInputAsHandled();
-		}
-
-		// Cycle movement mode between default, flying and flying+noclip.
-		if (ev.IsActionPressed("cycle_movement_mode"))
-		{
-			if (++Movement > MovementMode.NoClip)
-				Movement = MovementMode.Default;
-			GetViewport().SetInputAsHandled();
-		}
-
-		// Inputs that are valid only when the mouse is captured.
-		// ======================================================
-		if (Input.MouseMode == Input.MouseModeEnum.Captured) {
-		}
-	}
-
-	public override void _UnhandledInput(InputEvent ev)
-	{
-		var isMouseCaptured = Input.MouseMode == Input.MouseModeEnum.Captured;
-		// When pressing escape and mouse is currently captured, release it.
-		if (ev.IsActionPressed("ui_cancel") && isMouseCaptured)
-			Input.MouseMode = Input.MouseModeEnum.Visible;
-
-		// Grab the mouse when pressing the primary mouse button.
-		// TODO: Make "primary mouse button" configurable.
-		if (ev is InputEventMouseButton button && button.ButtonIndex == MouseButton.Left)
-			Input.MouseMode = Input.MouseModeEnum.Captured;
-
-		if (ev is InputEventMouseMotion motion && isMouseCaptured)
-		{
-			_neckBone.RotateX(Mathf.DegToRad(motion.Relative.Y * -MouseSensitivity));
-			_headBone.RotateY(Mathf.DegToRad(motion.Relative.X * -MouseSensitivity));
-
-			var rotation = _neckBone.RotationDegrees;
-			rotation.X = Mathf.Clamp(rotation.X, -80, 80);
-			_neckBone.RotationDegrees = rotation;
-		}
-	}
-
-	public override void _PhysicsProcess(double delta)
-	{
-		var movementVector = new Vector3(
-			Input.GetActionStrength("move_strafe_right") - Input.GetActionStrength("move_strafe_left"),
-			Input.GetActionStrength("move_upward")       - Input.GetActionStrength("move_downward"),
-			Input.GetActionStrength("move_backward")     - Input.GetActionStrength("move_forward"));
-
-		if (Movement == MovementMode.Default)
-		{
-			Velocity += Gravity * (float)delta;
-
-			var dir = Vector3.Zero;
-			var camTransform = _camera.GlobalTransform;
-			dir += camTransform.Basis.Z.Normalized() * movementVector.Z;
-			dir += camTransform.Basis.X.Normalized() * movementVector.X;
-			dir.Y = 0;
-			dir = dir.Normalized() * movementVector.Length();
-
-			var hvel = Velocity;
-			hvel.Y = 0;
-
-			var target   = dir * MaxMoveSpeed;
-			var friction = IsOnFloor() ? FrictionFloor : FrictionAir;
-			var accel    = (dir.Dot(hvel) > 0) ? MoveAccel : friction;
-
-			if (IsSprinting) { target *= 5; accel *= 5; }
-			hvel = hvel.Lerp(target, accel * (float)delta);
-
-			Velocity = new(hvel.X, Velocity.Y, hvel.Z);
-
-			// Sometimes, when pushing into a wall, jumping wasn't working.
-			// Possibly due to `IsOnFloor` returning `false` for some reason.
-			// The `JumpEarlyTime` feature seems to avoid this issue, thankfully.
-
-			if (IsOnFloor()) _lastOnFloor = DateTime.Now;
-
-			if (((DateTime.Now - _jumpPressed) <= JumpEarlyTime)
-				&& ((DateTime.Now - _lastOnFloor) <= JumpCoyoteTime))
-			{
-				Velocity = new(Velocity.X, JumpVelocity, Velocity.Z);
-				_jumpPressed = null;
-				_lastOnFloor = null;
-			}
-		}
-		else
-		{
-			Velocity *= 1 - FrictionAir * (float)delta;
-
-			var cameraRot = _headBone.GlobalTransform.Basis.GetRotationQuaternion();
-			var dir    = cameraRot * movementVector;
-			var target = dir * MaxMoveSpeed;
-			var accel  = (dir.Dot(Velocity) > 0) ? MoveAccel : FrictionAir;
-			target *= 4; accel *= 4;
-
-			if (IsSprinting) { target *= 5; accel *= 5; }
-			Velocity = Velocity.Lerp(target, accel * (float)delta);
-		}
-
-		if (Movement == MovementMode.NoClip)
-			Translate(Velocity * (float)delta);
-		else MoveAndSlide();
-	}
-}