Vivi movement demo

Scripts/CameraSystem.cs

@@ -0,0 +1,50 @@
+using Godot;
+
+public partial class CameraSystem : SpringArm3D
+{
+  [Export]
+  private float _sensitivityHorizontal = 0.05f;
+  [Export]
+  private float _sensitivityVertical = 0.05f;
+  [Export]
+  private float _joystickDeadZone = 0.5f;
+
+  private Node3D _pivot;
+  private CharacterBody3D _characterBody;
+
+  public override void _Ready()
+  {
+    _pivot = GetNode<Node3D>("/root/Main/CharacterBody3D/Pivot");
+    _characterBody = GetNode<CharacterBody3D>("/root/Main/CharacterBody3D");
+  }
+
+  public override void _Process(double delta)
+  {
+    var joyRightX = Input.GetJoyAxis(0, JoyAxis.RightX);
+    var joyRightY = Input.GetJoyAxis(0, JoyAxis.RightY);
+
+    if (Mathf.Abs(joyRightX) > _joystickDeadZone)
+    {
+      var rotateAmount = joyRightX * _sensitivityHorizontal;
+      _characterBody.RotateY(-rotateAmount);
+      _pivot.RotateY(rotateAmount);
+    }
+
+    if (Mathf.Abs(joyRightY) > _joystickDeadZone)
+    {
+      RotateX(joyRightY * _sensitivityVertical);
+      Rotation = new Vector3(Mathf.Clamp(Rotation.X, -0.7f, 0.7f), Rotation.Y, Rotation.Z);
+    }
+  }
+
+  public override void _Input(InputEvent @event)
+  {
+    if (@event is InputEventMouseMotion mouseMotion)
+    {
+      _characterBody.RotateY(Mathf.DegToRad(-mouseMotion.Relative.X * _sensitivityHorizontal));
+      _pivot.RotateY(Mathf.DegToRad(mouseMotion.Relative.X * _sensitivityHorizontal));
+      RotateX(Mathf.DegToRad(mouseMotion.Relative.Y * _sensitivityVertical));
+      Rotation = new Vector3(Mathf.Clamp(Rotation.X, -0.7f, 0.7f), Rotation.Y, Rotation.Z);
+    }
+  }
+}