【每日一句：清晨和夜晚都请用尽全力去生活】
目录
【敌人（减血物体）触发检测，调用玩家改变血量值方法ChangeHealth(int amount)】
【改变敌人血量方法EnemyChangeHealth() 引用敌人血量脚本EnemyHealth EnemySetValue(currentHealth / (float)maxHealth);】
一、环境搭建
1.瓦片地图Tilemaps
创建 2DObject——>Tilemap——>Rectangular
Window——>2D——>Tile Palette
瓦片集 Sprite Mode从Single改为Multiple
Pixel Per Unit值从100更改为64
2.添加瓦片地图碰撞：Tilemap Collider2D组件
选择的瓦片不再被视为碰撞体：在Inspector找到Collider Type属性，Sprite更改为None
优化瓦片地图碰撞体Composite Collider2D组件，会自动添加Rigidbody2D，在Tilemap Collider2D,启用Used By Composite
在Rigidbody2D,将Rigidbody Body Type属性设为Static
二、人物
动画
Right_Run——>Left_Run
单击Add Property,然后单击Sprite Render旁边的三角形，再单击Flip X旁边的+图标
使用混合树：
【待完善……】
【上下左右移动】
三、相机跟随人物移动
使用Cinemachine包
Window——>PackageManager——>Cinemachine
使用GameObject——>Cinemachine——>Virtual Camera
Cinemachine Virtual Camera组件
调整Orthgraphic Size(摄像机的一半高度内可容纳多少个单位);Follow 跟随主角
四、平铺精灵
1.首先确保游戏对象的缩放在Transform组件1:1:1
2.在SpriteRender组件中将Draw Mode设为Tiled，Tile Mode改为Adaptive
精灵的Inspector面板,Mesh Type改为Full Rect
五、血条跟随敌人行走
public class FollowBlood : MonoBehaviour
{
public Transform player;
public Image hp;
public Camera cam;
void Update()
{
//把人物的坐标转化到屏幕坐标
var playerScreenPos = cam.WorldToScreenPoint(player.position);
//再把人物坐标Y加一个高度给到人物
hp.rectTransform.position = new Vector2(playerScreenPos.x, playerScreenPos.y + 35f);
}
}
六、脚本逻辑
【玩家行走方法】
void Movement()
{
float horizontal = Input.GetAxisRaw("Horizontal");
rb.velocity = new Vector2(horizontal * speed, rb.velocity.y);
Vector2 move = new Vector2(horizontal, 0);
if (horizontal != 0)
{
//lookDir.Set(move.x, 0);
lookDir.Normalize();
ani.SetBool("IsSpeed",true);
}
else if(horizontal == 0)
{
ani.SetBool("IsSpeed", false);
}
//Debug.Log(horizontal);
if (horizontal > 0)
{
ani.SetFloat("LookX", 1);
}
else if (horizontal < 0)
{
ani.SetFloat("LookX", 0f);
}
}
【玩家跳跃方法】
void Jump()
{
if (isGround)
{
jumpCount = 2;
}
if (isJump && isGround)
{
rb.velocity = new Vector2(rb.velocity.x, jumpForce);
//jumpForce--;
isJump = false;
}
else if (isJump && !isGround && jumpCount > 0)
{
rb.velocity = new Vector2(rb.velocity.x, jumpForce);
jumpCount--;
isJump = false;
}
【改变玩家血量值方法】
public void ChangeHealth(int amount)
{
if (amount < 0)
{
if (isInvincible)
return;
isInvincible = true;
invincibleTimer = timerInvincible;
}
currentHealth = Mathf.Clamp(currentHealth + amount, 0, maxHealth);
UIHealth.instance.SetValue(currentHealth / (float)maxHealth);
Debug.Log(currentHealth + "/" + maxHealth);
}
【创建玩家子弹方法】
void CreatBullet()
{
GameObject bul = Instantiate(bullet, rb.position + Vector2.right * 0.5f,Quaternion.identity) as GameObject;
Projectile proj = bul.GetComponent<Projectile>();
proj.Launch(300);
}
—————————————————————————————————————————
【主角血量，改变血条遮罩】
public class UIHealth : MonoBehaviour
{
public static UIHealth instance
{
get;private set;
}
public Image mask;
float originalSize;
private void Awake()
{
instance = this;
}
// Start is called before the first frame update
void Start()
{
originalSize = mask.rectTransform.rect.width;
}
public void SetValue(float value)
{
mask.rectTransform.SetSizeWithCurrentAnchors(RectTransform.Axis.Horizontal, originalSize * value);
}
}
【敌人（减血物体）触发检测，调用玩家改变血量值方法ChangeHealth(int amount)】
private void OnTriggerStay2D(Collider2D collision)
{
PlayerController controller = collision.GetComponent<PlayerController>();
if (controller != null)
{
controller.ChangeHealth(-1);
}
}
【敌人来回移动代码】
void Update()
{
timer -= Time.deltaTime;
if (timer < 0)
{
direction = -direction;
timer = changeTime;
}
if (direction == 1)
{
ani.SetBool("isLeft", true);
}
else
{
ani.SetBool("isLeft", false);
}
}
private void FixedUpdate()
{
Vector2 position = rb.position;
if (vertical)
{
position.y = position.y + Time.deltaTime * speed * direction;
}
else
{
position.x = position.x + Time.deltaTime * speed * direction;
}
rb.MovePosition(position);
}
【改变敌人血量方法EnemyChangeHealth() 引用敌人血量脚本EnemyHealth EnemySetValue(currentHealth / (float)maxHealth);】
public void EnemyChangeHealth(int amount)
{
currentHealth = Mathf.Clamp(currentHealth + amount, 0, maxHealth);
Debug.Log("敌人当前血量+" + currentHealth + amount);
eh.EnemySetValue(currentHealth / (float)maxHealth);
Debug.Log(currentHealth + "/" + maxHealth);
}