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学习游戏制作记录（存档点和丢失货币的保存以及敌人的货币掉落）8.27

news 2025/9/1 7:57:04

1.实现存档点

创建存档对象，有激活和非激活的动画

创建Checkpoint脚本：

private Animator anim;
public string id;//存档点的id
public bool activeStatus;//是否激活

private void Awake()
{
anim = GetComponent<Animator>();
}

[ContextMenu("Generate id")]

private void GenerateID()//用来生成随机id
{
id=System.Guid.NewGuid().ToString();
}
private void OnTriggerEnter2D(Collider2D collision)//触发器
{
ActiveCheckPoints();//玩家靠近时激活
}

public void ActiveCheckPoints()//激活函数
{
activeStatus=true;
anim.SetBool("active", true);//设置激活动画
}

GameManager脚本：

[SerializeField] public Checkpoint[] checkpoints;//获取所有存档点
[SerializeField] public string closetcheckpointID;//最近存档点的id

public void Awake()
{
if (instance != null)
{
Destroy(instance.gameObject);
}
else
{
instance = this;
}

checkpoints = FindObjectsOfType<Checkpoint>();
}

public void RestartScence()
{
SaveManager.instance.SaveData();//重新加载场景时保存数据
Scene scene =SceneManager.GetActiveScene();

SceneManager.LoadScene(scene.name);
}

public void LoadDate(GameData gameData)
{

foreach (KeyValuePair<string, bool> pair in gameData.checkpoints)
{
foreach (Checkpoint checkpoint in checkpoints)
{
if (checkpoint.id == pair.Key && pair.Value == true)
{
checkpoint.ActiveCheckPoints();//加载已激活的存档点
}
}
}

closetcheckpointID = gameData.closetCheckpointID;//获取最近id
Invoke("PlacePlayerAtclosetCheckpoint", .1f);//延迟引用

}

private void PlacePlayerAtclosetCheckpoint()
{
foreach (Checkpoint checkpoint in checkpoints)
{
if (closetcheckpointID == checkpoint.id)
{
PlayerManage.instance.player.transform.position = checkpoint.transform.position;//找到最近存档点更换位置
}
}
}

public void SaveDate(ref GameData gameData)
{
gameData.closetCheckpointID = FindClosetCheckPoint().id;
gameData.checkpoints.Clear();

foreach (Checkpoint checkpoint in checkpoints)
{
gameData.checkpoints.Add(checkpoint.id, checkpoint.activeStatus);
}
}

public Checkpoint FindClosetCheckPoint()//找到最近的存档点
{
float closetDistance=Mathf.Infinity;
Checkpoint closetcheckpoint = null;

foreach(var checkpoint in checkpoints)
{
float distanceToCheckpoint=Vector2.Distance(PlayerManage.instance.player.transform.position,checkpoint.transform.position);

if(distanceToCheckpoint<closetDistance&&checkpoint.activeStatus==true)
{
closetDistance = distanceToCheckpoint;
closetcheckpoint = checkpoint;
}
}

return closetcheckpoint;
}

GameData脚本：

public SerializbleDictionary<string, bool> checkpoints;//所有存档点
public string closetCheckpointID;//最近的id

2.实现货币随时间推移而增加

UI_InGame脚本：

[SerializeField] private float soulAmounts;
[SerializeField] private float increseRate = 100;

private void UpdataSoulUI()//在Updata（）中调用
{
if (soulAmounts <= PlayerManage.instance.GetCurrentCurrency())
soulAmounts += Time.deltaTime * increseRate;//缓慢增长
else
soulAmounts = PlayerManage.instance.GetCurrentCurrency();

CurrencySlots.text = ((int)soulAmounts).ToString();
}

3.实现敌人货币的掉落

EnemyStats脚本：

public State soulDrop;//掉落灵魂的数量

protected override void Start()
{
soulDrop.SetDefaultValue(100);//设置基础值
ApplyLevelModifier();
base.Start();

enemy = GetComponent<Enemy>();
myDropSystem = GetComponent<ItemDrop>();
}

Modify(soulDrop);//ApplyLevelModifier()中调用，应用等级修改器

protected override void Die()
{
base.Die();

enemy.Die();

myDropSystem.GenerateDrop();

PlayerManage.instance.currency += soulDrop.GetValue();//玩家的灵魂数量提高
}

4.实现玩家死亡时货币的掉落

创建一个玩家死亡的预制体，添加触发器

创建LostCurrencyControl脚本挂载在预制体上：

public int currency;//尸体对应的灵魂数量

private void OnTriggerEnter2D(Collider2D collision)
{
if(collision.GetComponent<Player>() != null)
{
PlayerManage.instance.currency += currency;//被捡起来
Destroy(gameObject);
}
}

GameData脚本：

public float lostcurrencyX;//位置
public float lostcurrencyY;
public int lostcurrencyAmount;//数量

GameManager脚本：

[Header("Lost currency")]
[SerializeField] GameObject lostcurrencyPrefab;//尸体的预制体
public int lostcurrencyAmount;
[SerializeField] private float lostcurrenctX;
[SerializeField] protected float lostcurrenctY;

public void LoadDate(GameData gameData)=>StartCoroutine(LoadWithDelay(gameData));

private void LoadLostcurrency(GameData gameData)//加载尸体的位置和数量
{
lostcurrencyAmount = gameData.lostcurrencyAmount;
lostcurrenctX = gameData.lostcurrencyX;
lostcurrenctY = gameData.lostcurrencyY;

if(lostcurrencyAmount>0)//如果玩家有灵魂，则创建预制体
{
GameObject newlostcurrency = Instantiate(lostcurrencyPrefab, new Vector3(lostcurrenctX, lostcurrenctY), Quaternion.identity);

newlostcurrency.GetComponent<LostCurrencyControl>().currency=lostcurrencyAmount;//设置数量
}

lostcurrencyAmount = 0;//如果连续死亡两次则清空灵魂数量
}

private IEnumerator LoadWithDelay(GameData gameData)
{
yield return new WaitForSeconds(.1f);//统一延迟启用

LoadCheckpoints(gameData);//提取的方法
LoadClosetCheckPoint(gameData);
LoadLostcurrency(gameData);

}

public void SaveDate(ref GameData gameData)
{
gameData.lostcurrencyAmount = lostcurrencyAmount;//加载数量
gameData.lostcurrencyX=player.position.x;
gameData.lostcurrencyY=player.position.y;

if(FindClosetCheckPoint()!=null)
gameData.closetCheckpointID = FindClosetCheckPoint().id;
gameData.checkpoints.Clear();

foreach (Checkpoint checkpoint in checkpoints)
{
gameData.checkpoints.Add(checkpoint.id, checkpoint.activeStatus);
}
}