unity_Practice

multiJump.cs

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

public class player : MonoBehaviour
{
    Rigidbody2D rb;
    Animator anim;
    SpriteRenderer sr;
    private int pressKey_cnt_jump;
    private int pressKey_jump;
    private int presskey_horizon;
    [SerializeField] float runSpeed;     // 走るスピード
    [SerializeField] float jumpForce;　　// ジャンプ力
    [SerializeField] int jumpMaxCnt;    // ジャンプ最大回数
    [SerializeField] int jumpCnt;       // ジャンプ残り回数
    private bool isGround;              // 接地してるか
    // Start is called before the first frame update
    void Start()
    {
        rb = GetComponent<Rigidbody2D>();
        anim = GetComponent<Animator>();
        sr = GetComponent<SpriteRenderer>();
    }

    // Update is called once per frame
    void Update()
    {
        inputCheck();
        groundCheck();
        animStateCheck();
    }
    void inputCheck()
    {
        if(Input.GetKey(KeyCode.Z))
        {
           pressKey_cnt_jump++; 
        }
        else
        {
            pressKey_cnt_jump = 0;
        }
        if(pressKey_cnt_jump==1)
        {
            pressKey_jump++; 
        }

        if(Input.GetKey(KeyCode.LeftArrow))
        {
            presskey_horizon = -1;
        }
        else if(Input.GetKey(KeyCode.RightArrow))
        {
            presskey_horizon = 1;
        }
        else
        {
            presskey_horizon = 0;
        }
    }
    void groundCheck()
    {
        RaycastHit2D hit = Physics2D.Linecast(this.transform.position+ (Vector3.down * 15.1f) - (Vector3.right * 5f),this.transform.position + (Vector3.down * 15.1f) + (Vector3.right * 5f));
        Debug.DrawLine(this.transform.position+ (Vector3.down * 15.1f) - (Vector3.right * 5f),this.transform.position + (Vector3.down * 15.1f) + (Vector3.right * 5f));
        if(hit){

            isGround = true;
            jumpCnt = jumpMaxCnt;
        }
        else
        {
            //Debug.Log("iGf");
            isGround = false;
        }



    }
    void animStateCheck()
    {
        
        anim.SetBool("isSkip",false);
        anim.SetBool("isIdle",false);
        if(isGround){
            if(rb.velocity.x <0)
            {
                anim.SetBool("isSkip",true);
                sr.flipX = true;
            } 
            else if(0 < rb.velocity.x)
            {
                anim.SetBool("isSkip",true);
                sr.flipX = false;
            }
            else {
                anim.SetBool("isIdle",true);
            }
        }
    }
    void FixedUpdate()
    {
        if(pressKey_jump>0)
        {
            if(isGround)
            {
                isGround = false;
                rb.AddForce(new Vector2(0,jumpForce));
                jumpCnt--;
            }
            else
            {
                if(jumpCnt>0)
                {
                    rb.velocity = new Vector2(rb.velocity.x, 0);
                    rb.AddForce(new Vector2(0,jumpForce));
                    jumpCnt--;
                }
            }
            pressKey_jump--;
        }
        if(presskey_horizon!=0){
            rb.velocity = new Vector2(presskey_horizon*runSpeed, rb.velocity.y);
        }
        else
        {
            rb.velocity = new Vector2(0, rb.velocity.y);
        }
    }    

}