Assets/Scripts/PlatformMove.cs - master - darov/Platformer

Assets/Scripts/PlatformMove.cs
76 строк2 KB
Roman Danilov
Module17_1: physics, joints, connectors, effectors
01 июл 2025, 06:03
01 июл 2025, 06:0391a8271
using System.Collections;
using UnityEngine;

public class PlatformMove : MonoBehaviour
{
    [SerializeField] private Vector2 _finalPoint;
    [SerializeField] private float _maxSpeed;

    private Rigidbody2D _platform;
    private Vector2 _startPoint;
    private bool _isBackwards;
    private bool _isMoving;

    private void Start()
    {
        TryGetComponent(out _platform);
        _startPoint = transform.position;
        _isMoving = true;
    }

    private void FixedUpdate()
    {
        if (_isMoving)
        {
            DetermineTargetPoint(out Vector2 targetPoint);
            CountSpeed(targetPoint, out float speed, out float distance);
            MovePlatform(targetPoint, speed);

            if (distance < 0.01f)
            {
                _isMoving = false;
                StartCoroutine(MakeStop());
            }
        }
    }

    private void DetermineTargetPoint(out Vector2 targetPoint)
    {
        if (_isBackwards)
        {
            targetPoint = _startPoint;
        }
        else
        {
            targetPoint = _finalPoint;
        }
    }

    private void CountSpeed(Vector2 targetPoint, out float speed, out float distance)
    {
        distance = Vector2.Distance(transform.position, targetPoint);
        float routeLenth = Vector2.Distance(_startPoint, _finalPoint);

        float speedRatio = 1f - Mathf.Abs(distance / routeLenth - 0.5f) / 0.5f;
        speedRatio = Mathf.Clamp(speedRatio, 0.1f, 0.6f);

        speed = _maxSpeed * speedRatio;
    }

    private void MovePlatform(Vector2 targetPoint, float speed)
    {
        Vector2 nextStep = Vector2.MoveTowards(transform.position,
                                                 targetPoint,
                                                 Time.deltaTime * speed);

        _platform.MovePosition(nextStep);
    }

    private IEnumerator MakeStop()
    {
        yield return new WaitForSecondsRealtime(1f);

        _isBackwards = !_isBackwards;
        _isMoving = true;
    }
}