1. 将准备好的素材--变成16像素点-- >Fliter Mode--Point -- >Compression(压缩)--None

2.将素材切割-- Sprite Editor--切割--可以按照像素点切割地图--切割人物可以数格数

3.制作背景-->窗口-->2D-->平铺调色板（Palette）-->拖到检查器上-->将准备好的地图放入平铺调色板（注意：新建文件夹）--在层级中创建2D--矩形

4.图层之间--后图层会遮挡前面的图层

5.制作一个Rule Tiles--2D瓦片-Rule --然后选中刚刚切割的地图--然后定义图片出现的规则

 

二：

1.假如想用新的Input系统--> 进ProjectSeting-->Player-->API兼容级别（.NetFrameWork）-->输入系统（新） -->在包管理器中安装Input System-->在Setting中创建文件夹-->InputAction

创建组件PlayerInput让他生成代码--在自己代码里面调用

using UnityEngine.InputSystem;
public class PlayerController : MonoBehaviour
{public PlayerInputControl inputControl;public Vector2 inputDirection;private void Awake(){inputControl = new PlayerInputControl();}private void OnEnable(){inputControl.Enable();}private void OnDisable(){inputControl.Disable();}private void Update(){inputDirection = inputControl.Gameplay.Move.ReadValue<Vector2>();}
}

行动+ 翻身

   private void FixedUpdate(){//固定时钟执行Move();}public void Move(){m_rigidbody.velocity = new Vector2(inputDirection.x * speed * Time.deltaTime, m_rigidbody.velocity.y);//强制转换 int faceDir = (int)transform.localScale.x;//人物翻转if (inputDirection.x > 0)faceDir = 1;if (inputDirection.x < 0)faceDir = -1;m_transform.localScale = new Vector3(faceDir, 1, 1);}
}

检测地面--把地面新弄为一个Grond层--然后public一个layerMask

public bool isGround;public float checkRaduis;public LayerMask groundLayer;void Update(){Check();}public void Check(){//检测地面isGround  = Physics2D.OverlapCircle(transform.position, checkRaduis, groundLayer);}

重点：两代码之间互相访问

public Physicscheck physicscheck;
physicscheck = GetComponent<Physicscheck>();

人物跳跃

 private void Jump(InputAction.CallbackContext obj){//碰地才能跳跃if(physicscheck.isGround)m_rigidbody.AddForce(transform.up * jumpForce, ForceMode2D.Impulse);//瞬时的力}

给角色光滑物理材质--物理材质Friction--0

创建基本动画-- 创建Animator --然后再创建Animation --用代码控制转换条件

  public void SetAnimation(){anim.SetFloat("velocityX", Mathf.Abs(rb.velocity.x));anim.SetFloat("velocityY", rb.velocity.y);anim.SetBool("isGround", physicscheck.isGround);anim.SetBool("isCrouch", playerController.isCrouch);}

角色攻击

public class Character : MonoBehaviour
{[Header("基本属性")]public float maxHealth;public float currentHealth;[Header("受伤无敌")]public float invulnerableDurnation;public float invulnerableCounter;public bool invulnerable;private void Start(){currentHealth = maxHealth;}private void Update(){if (invulnerable){//计时器invulnerableCounter -= Time.deltaTime;if(invulnerableCounter<= 0){invulnerable = false;}}}public void TakeDanage(Attack attacker){//如果无敌就不执行了if (invulnerable)return;//Debug.Log(attacker.damage);if (currentHealth - attacker.damage > 0){currentHealth -= attacker.damage;TriggerInvlneralbe();}else{currentHealth = 0;}//受伤之后--无敌TriggerInvlneralbe();}private void TriggerInvlneralbe(){if (!invulnerable){invulnerable = true;invulnerableCounter = invulnerableDurnation;}}
}

配套

public class Attack : MonoBehaviour
{public int damage;public float attakrange;public float attackrate;private void OnTriggerStay2D(Collider2D other){other.GetComponent<Character>()?.TakeDanage(this);}
}

抽象类的下面只写方法的声明--但是不写具体实现