Split the PlayerMovement class into mulltiple files

Assets/Scripts/Player/PlayerFixedUpdate.cs

@@ -0,0 +1,82 @@
+using UnityEngine;
+
+public partial class PlayerMovement : MonoBehaviour
+{
+    // Function to make the player jump
+    // The function checks wether the player is grounded so external checks are not needed
+    private void Jump(bool force = false)
+    {
+        // Checks wether the player is grounded
+        // Can be overriden by passing true to force a jump
+        if (m_Grounded || force)
+        {
+            // Applies an upwards force simulating a jump
+            m_Body.AddForce(transform.up * m_JumpForce * m_Body.mass, ForceMode.Impulse);
+        }
+    }
+
+    // Fixed Update is called once per physics update
+    private void FixedUpdate()
+    {
+        // Works out the new state of the player
+        UpdatePlayerState();
+
+        // Calculates the movement direction
+        m_MoveDir = (m_Orientation.forward * m_Input.y) + (m_Orientation.right * m_Input.x);
+
+        //
+        if (m_OnSlope)
+        {
+            // Calculates better move direction for sliding
+            m_MoveDir = Vector3.ProjectOnPlane(m_MoveDir, m_SlopeHit.normal).normalized;
+        }
+
+        // Runs correct update function depending on player state
+        switch (m_State)
+        {
+            case PlayerState.RUNNING:
+                // Adds the force to the rigid body
+                m_Body.AddForce(m_MoveDir.normalized * m_MoveSpeed * m_Body.mass * 10.0f, ForceMode.Force);
+
+                // Stops player sliding slopes when they don't want to
+                if (m_OnSlope)
+                { m_Body.useGravity = false; }
+
+                // Non-Slope running requires gravity on
+                else
+                { m_Body.useGravity = true; }
+
+                break;
+
+            case PlayerState.SLIDING:
+                m_Body.useGravity = false; // Disables gravity on slopes
+
+                // Calls correct update function
+                UpdateSlidingState();
+                break;
+
+            case PlayerState.WALL_RUNNING:
+                // Calls correct update function
+                UpdateWallRunState();
+                m_Body.useGravity = false; // Disables gravity on walls to stop the player sliding off them
+                break;
+        }
+
+        // Calls the Jump function if the user has pressed jump
+        // No grounded checks needed as Jump() function does that internally
+        if (m_JumpKeyPressed)
+        {
+            Jump();
+        }
+
+        // Updates the counter for slide boost updates left
+        m_TicksOfSlideBoostLeft = (int)Mathf.Clamp(m_TicksOfSlideBoostLeft - 1, 0, Mathf.Infinity);
+
+        // Remvoes tiny ammounts of velocity because it was annoying me
+        Vector3 v = m_Body.velocity;
+        if (Mathf.Abs(v.x) < 0.1f) { v.x = 0.0f; }
+        if (Mathf.Abs(v.y) < 0.1f) { v.y = 0.0f; }
+        if (Mathf.Abs(v.z) < 0.1f) { v.z = 0.0f; }
+        m_Body.velocity = v;
+    }
+}