using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CharaMove : MonoBehaviour
{
    private CharacterController controller;
    private Vector3 velocity;

    public float jumpHeight = 2.0f;
    public float gravity = -9.81f;

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

    private void Update()
    {
        if (controller.isGrounded && velocity.y < 0)
        {
            velocity.y = -2.0f;
        }

        if (Input.GetButtonDown("Jump") && controller.isGrounded)
        {
            velocity.y = Mathf.Sqrt(jumpHeight * -2.0f * gravity);
        }

        velocity.y += gravity * Time.deltaTime;
        controller.Move(velocity * Time.deltaTime);
    }
}