JackKell · December 16, 2019 02:42 · Intrivus · Jul 26, 2024 · JackKell · Jul 27, 2024
diff --git a/JumpingCharacterControllerExample.cs b/JumpingCharacterControllerExample.cs
 using UnityEngine;

 public class JumpingCharacterControllerExample : MonoBehaviour
 {
    [SerializeField] private float jumpHeight;
    [SerializeField] private float timeToReachJumpApex;
        
    private Vector3 _velocity;
    private Vector3 _oldVelocity;

    private float _maxHeightReached = Mathf.NegativeInfinity;
    private float _startHeight = Mathf.NegativeInfinity;
    private bool _reachedApex = true;

    private float Gravity => -2 * jumpHeight / (timeToReachJumpApex * timeToReachJumpApex);
    private float JumpForce => 2 * jumpHeight / timeToReachJumpApex;

    private CharacterController _characterController;

    private bool _isGrounded = false;
    private float _jumpTimer = 0;

    private void Start()
    {
        _characterController = GetComponent<CharacterController>();
    }

    private void Jump()
    {
        _jumpTimer = 0;
        _maxHeightReached = Mathf.NegativeInfinity;
        _velocity.y = JumpForce;
        _startHeight = transform.position.y;
        _reachedApex = false;
    }

    private void Update()
    {
        if (_isGrounded && Input.GetButtonDown("Jump"))
        {
            Jump();
        }

        if (!_isGrounded && !_reachedApex)
        {
            _jumpTimer += Time.fixedDeltaTime;
        }
            
        if (!_reachedApex && _maxHeightReached > transform.position.y)
        {
            float delta = _maxHeightReached - _startHeight;
            float error = jumpHeight - delta;
            Debug.Log($"jump result: start:{_startHeight:F4}, end:{_maxHeightReached:F4}, delta:{delta:F4}, error:{error:F4}, time:{_jumpTimer:F4}, gravity:{Gravity:F4}, jumpForce:{JumpForce:F4}");
            _reachedApex = true;
        }
        _maxHeightReached = Mathf.Max(transform.position.y, _maxHeightReached);
            
        _oldVelocity = _velocity;
        _velocity.y += Gravity * Time.fixedDeltaTime;
        Vector3 deltaPosition = (_oldVelocity + _velocity) * 0.5f * Time.fixedDeltaTime;
        CollisionFlags collisionFlags = _characterController.Move(deltaPosition);

        _isGrounded = collisionFlags == CollisionFlags.Below;
        if (_isGrounded)
        {
            _velocity.y = 0;
        }
    }
 }
	using UnityEngine;

	public class JumpingCharacterControllerExample : MonoBehaviour
	{
	[SerializeField] private float jumpHeight;
	[SerializeField] private float timeToReachJumpApex;

	private Vector3 _velocity;
	private Vector3 _oldVelocity;

	private float _maxHeightReached = Mathf.NegativeInfinity;
	private float _startHeight = Mathf.NegativeInfinity;
	private bool _reachedApex = true;

	private float Gravity => -2 * jumpHeight / (timeToReachJumpApex * timeToReachJumpApex);
	private float JumpForce => 2 * jumpHeight / timeToReachJumpApex;

	private CharacterController _characterController;

	private bool _isGrounded = false;
	private float _jumpTimer = 0;

	private void Start()
	{
	_characterController = GetComponent<CharacterController>();
	}

	private void Jump()
	{
	_jumpTimer = 0;
	_maxHeightReached = Mathf.NegativeInfinity;
	_velocity.y = JumpForce;
	_startHeight = transform.position.y;
	_reachedApex = false;
	}

	private void Update()
	{
	if (_isGrounded && Input.GetButtonDown("Jump"))
	{
	Jump();
	}

	if (!_isGrounded && !_reachedApex)
	{
	_jumpTimer += Time.fixedDeltaTime;
	}

	if (!_reachedApex && _maxHeightReached > transform.position.y)
	{
	float delta = _maxHeightReached - _startHeight;
	float error = jumpHeight - delta;
	Debug.Log($"jump result: start:{_startHeight:F4}, end:{_maxHeightReached:F4}, delta:{delta:F4}, error:{error:F4}, time:{_jumpTimer:F4}, gravity:{Gravity:F4}, jumpForce:{JumpForce:F4}");
	_reachedApex = true;
	}
	_maxHeightReached = Mathf.Max(transform.position.y, _maxHeightReached);

	_oldVelocity = _velocity;
	_velocity.y += Gravity * Time.fixedDeltaTime;
	Vector3 deltaPosition = (_oldVelocity + _velocity) * 0.5f * Time.fixedDeltaTime;
	CollisionFlags collisionFlags = _characterController.Move(deltaPosition);

	_isGrounded = collisionFlags == CollisionFlags.Below;
	if (_isGrounded)
	{
	_velocity.y = 0;
	}
	}
	}