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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class JumpTest : MonoBehaviour
{
    private const int maxJumpCount = 3;
 
    private Counter counter = new Counter(maxJumpCount);
 
    [SerializeField]
    private Rigidbody2D rigid;
    [SerializeField]
    private ContactFilter2D contactFilter2D;
    // IsNormalAngleをtrue,角度を70～110に設定,レイヤーも設定
 
 
    [SerializeField]
    private float jumpPower;
 
    // Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown("a")) 
        {
            if (counter.IsConsumable(1))
            {
                counter.Consume(1);
                Jump();
            }
        }
 
    }
 
    private void Jump() 
    {
        rigid.velocity = new Vector2(rigid.velocity.x, 0);
        rigid.AddForce(new Vector2(0,jumpPower),ForceMode2D.Impulse);
    }
 
 
    private void OnCollisionEnter2D(Collision2D collision)
    {
        if (rigid.IsTouching(contactFilter2D))
            counter.SetValue(maxJumpCount);
    }
}
 
 
 
public class Counter 
{
    private int _value;
 
    public bool IsConsumable(int value)
    {
        return _value - value >= 0;
    }
 
    public void Consume(int value) 
    {
        _value = _value - value;
    }
 
    public int GetValue() 
    {
        return _value;
    }
    public void SetValue(int value) 
    {
        _value = value;
    }
 
    public Counter(int value) 
    {
        _value = value;
    }
}

prog.cs(3,7): error CS0246: The type or namespace name `UnityEngine' could not be found. Are you missing an assembly reference?
prog.cs(5,25): error CS0246: The type or namespace name `MonoBehaviour' could not be found. Are you missing an assembly reference?
prog.cs(12,13): error CS0246: The type or namespace name `Rigidbody2D' could not be found. Are you missing an assembly reference?
prog.cs(14,13): error CS0246: The type or namespace name `ContactFilter2D' could not be found. Are you missing an assembly reference?
prog.cs(42,37): error CS0246: The type or namespace name `Collision2D' could not be found. Are you missing an assembly reference?
Compilation failed: 5 error(s), 0 warnings

Standard output is empty