Fish moves - no rotation yet

Assets/Scripts/FishController.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class FishController : MonoBehaviour
+{
+    public float   speed   = 4f;
+    public float   gravity = -9.81f;
+    public Vector3 velocity;
+    public Vector3 drag;
+
+    CharacterController controller;
+    Transform t;
+
+    void Start()
+    {
+        t = transform;
+        controller = GetComponent<CharacterController>();
+    }
+
+    void Update()
+    {
+        float moveX       = Input.GetAxisRaw("Horizontal");
+        float moveZ       = Input.GetAxisRaw("Vertical");
+        float moveGravity = gravity * Time.deltaTime;
+
+        if (controller.isGrounded && velocity.y < 0)
+        {
+            velocity.y = 0;
+        }
+
+        if (Input.GetButtonDown("Jump") && controller.isGrounded)
+        {
+            velocity.y += 8;
+        }
+
+        velocity.x = moveX * speed;
+        velocity.z = moveZ * speed;
+        velocity.y += moveGravity;
+
+        Vector3 moveVelocity = velocity * Time.deltaTime;
+
+        if (moveVelocity.y < 0 && Math.Abs(moveVelocity.y) < controller.minMoveDistance)
+        {
+            Debug.Log(String.Format("Abs velocity: {0}, controller.minMoveDistance: {1}", Math.Abs(moveVelocity.y), controller.minMoveDistance));
+            moveVelocity.y = (gravity * 0.1f) * Time.deltaTime;
+        }
+
+        controller.Move(moveVelocity);
+    }
+}