멋쟁이 사자처럼 부트캠프 유니티 게임 개발 4기 33일차 회고

🕹️ 실습 (2D 횡스크롤 스테이트머신)

Background Parallax

public class ParallaxBackground : MonoBehaviour
{
    private Camera cam;

    [SerializeField] private float parallaxEffect;
    private float xPosition;
    private float length;

    void Start()
    {
        cam = Camera.main;

        length = GetComponent<SpriteRenderer>().bounds.size.x;
        xPosition = transform.position.x;
    }

    void Update()
    {
        float distanceMoved = cam.transform.position.x * (1 - parallaxEffect);
        float distanceToMove = cam.transform.position.x * parallaxEffect;

        transform.position = new Vector3(xPosition + distanceToMove, transform.position.y);

        if (distanceMoved > xPosition + length)
        {
            xPosition = xPosition + length;
        }
        else if (distanceMoved < xPosition - length)
        {
            xPosition = xPosition - length;
        }
    }
}

Enemy StateMachine

public class EnemyState
{
    protected EnemyStateMachine stateMachine;
    protected Enemy enemyBase;

    protected bool triggerCalled;
    private string animBoolName;

    protected float stateTimer;

    public EnemyState(Enemy _enemyBase, EnemyStateMachine _stateMachine, string _animBoolName)
    {
        this.enemyBase = _enemyBase;
        this.stateMachine = _stateMachine;
        this.animBoolName = _animBoolName;
    }

    public virtual void Eneter()
    {
        triggerCalled = false;
        enemyBase.anim.SetBool(animBoolName, true);
    }

    public virtual void Update()
    {
        stateTimer -= Time.deltaTime;
    }

    public virtual void Exit()
    {
        enemyBase.anim.SetBool(animBoolName, false);
    }
}

public class EnemyState
{
    protected EnemyStateMachine stateMachine;
    protected Enemy enemyBase;

    protected bool triggerCalled;
    private string animBoolName;

    protected float stateTimer;

    public EnemyState(Enemy _enemyBase, EnemyStateMachine _stateMachine, string _animBoolName)
    {
        this.enemyBase = _enemyBase;
        this.stateMachine = _stateMachine;
        this.animBoolName = _animBoolName;
    }

    public virtual void Eneter()
    {
        triggerCalled = false;
        enemyBase.anim.SetBool(animBoolName, true);
    }

    public virtual void Update()
    {
        stateTimer -= Time.deltaTime;
    }

    public virtual void Exit()
    {
        enemyBase.anim.SetBool(animBoolName, false);
    }
}

public class SkeletonMoveState : EnemyState
{
    Skeleton enemy;

    public SkeletonMoveState(Enemy _enemyBase, EnemyStateMachine _stateMachine, string _animBoolName, Skeleton _enemy)
        : base(_enemy, _stateMachine, _animBoolName)
    {
        enemy = _enemy;
    }

    public override void Eneter()
    {
        base.Eneter();
    }

    public override void Update()
    {
        base.Update();

        enemy.SetVelocity(enemy.moveSpeed * enemy.facingDir, enemy.rb.linearVelocityY);

        if (enemy.IsWallDetected() || !enemy.IsGroundDetected())
        {
            enemy.Flip();
            stateMachine.ChangeState(enemy.idleState);
        }
    }

    public override void Exit()
    {
        base.Exit();
    }
}