first commit

NitroxClient/MonoBehaviours/AnimationController.cs

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+using UnityEngine;
+
+namespace NitroxClient.MonoBehaviours;
+
+// Shouldn't this class be named after the armscontroller?
+public class AnimationController : MonoBehaviour
+{
+    private const float SMOOTHING_SPEED = 4f;
+    private Animator animator;
+
+    public bool UpdatePlayerAnimations { get; set; } = true;
+    public Quaternion AimingRotation { get; set; }
+    public Vector3 Velocity { get; set; }
+    public Quaternion BodyRotation { get; set; }
+
+    private Vector3 smoothedVelocity = Vector3.zero;
+    private float smoothViewPitch;
+
+    public void Awake()
+    {
+        animator = GetComponent<Animator>();
+
+        this["is_underwater"] = true;
+    }
+
+    public void FixedUpdate()
+    {
+        if (UpdatePlayerAnimations)
+        {
+            Vector3 rotationCorrectedVelocity = transform.rotation.GetInverse() * Velocity;
+
+            smoothedVelocity = UWE.Utils.SlerpVector(smoothedVelocity, rotationCorrectedVelocity, Vector3.Normalize(rotationCorrectedVelocity - smoothedVelocity) * (SMOOTHING_SPEED * Time.fixedDeltaTime));
+
+            animator.SetFloat("move_speed", smoothedVelocity.magnitude);
+            animator.SetFloat("move_speed_x", smoothedVelocity.x);
+            animator.SetFloat("move_speed_y", smoothedVelocity.y);
+            animator.SetFloat("move_speed_z", smoothedVelocity.z);
+
+            float viewPitch = AimingRotation.eulerAngles.x;
+            if (viewPitch > 180f)
+            {
+                viewPitch -= 360f;
+            }
+
+            viewPitch = -viewPitch;
+            smoothViewPitch = Mathf.Lerp(smoothViewPitch, viewPitch, 4f * Time.fixedDeltaTime);
+            animator.SetFloat("view_pitch", smoothViewPitch);
+        }
+    }
+
+	public bool this[string name]
+	{
+		get => animator.GetBool(name);
+		set => animator.SetBool(name, value);
+	}
+
+	internal void SetFloat(string name, float value)
+	{
+		animator.SetFloat(name, value);
+	}
+
+	internal void SetFloat(int id, float value)
+	{
+		animator.SetFloat(id, value);
+	}
+
+	public void Reset()
+	{
+		animator.Rebind();
+		animator.Update(0f);
+	}
+}