pastemyst | MomentumController.cs

MomentumController.cs

C#copy raw

using UnityEngine;

public class MomentumController : MonoBehaviour
{
    [Header("References")]
    [SerializeField] private CharacterController controller;

[Header("Movement Settings")]
    [SerializeField] private float moveSpeed = 15f;        // Max movement speed
    [SerializeField] private float dampenRate = 5f;        // How quickly momentum slows when no input
    [SerializeField] private float inputInfluence = 10f;   // How fast input overrides existing velocity

[Header("Gravity Settings")]
    [SerializeField] private float gravity = -9.81f;       
    [SerializeField] private float groundedGravity = -2f;

private Vector3 currentVelocity; // tracks players velocity
    private Vector3 inputDirection;

private void Reset()
    {
        controller = GetComponent<CharacterController>();
    }

private void Update()
    {
        HandleInput();
        ApplyMovement();
    }

private void HandleInput()
    {
        // grab our input
        float h = Input.GetAxisRaw("Horizontal");
        float v = Input.GetAxisRaw("Vertical");

Vector3 localInput = new Vector3(h, 0f, v).normalized;
        inputDirection = transform.TransformDirection(localInput); // Convert to world space
        inputDirection.y = 0f;
    }

private void ApplyMovement()
    {
        // Horizontal momentum (X/Z)
        Vector3 horizontal = new Vector3(currentVelocity.x, 0f, currentVelocity.z);

if (inputDirection != Vector3.zero)
        {
            Vector3 desiredVelocity = inputDirection * moveSpeed;
            // Accelerate toward input
            horizontal = Vector3.MoveTowards(horizontal, desiredVelocity, moveSpeed * inputInfluence * Time.deltaTime);
        }
        else
        {
            // Decelerate to zero
            horizontal = Vector3.MoveTowards(horizontal, Vector3.zero, moveSpeed * dampenRate * Time.deltaTime);
        }

// Vertical movement (Y)
        float vertical = currentVelocity.y;

if (controller.isGrounded && vertical < 0f)
            vertical = groundedGravity; // Stick to ground
        else
            vertical += gravity * Time.deltaTime; // Apply gravity

// Combine horizontal + vertical and move
        currentVelocity = new Vector3(horizontal.x, vertical, horizontal.z);
        controller.Move(currentVelocity * Time.deltaTime);
    }
}

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