【制作100个unity游戏之23】实现类似七日杀、森林一样的生存游戏8（附项目源码）

public class InventoryItem : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerDownHandler, IPointerUpHandler
{
  [Header("是否是消耗品")]
    public bool isConsumable;
    [Header("对玩家健康值的影响")]
    public float healthEffect;
    [Header("对玩家卡路里值的影响")]
    public float caloriesEffect;
    [Header("对玩家水分值的影响")]
    public float hydrationEffect;

  //。。。

  // 当鼠标点击物品时触发
    public void OnPointerDown(PointerEventData eventData)
    {
        // 右键点击
        if (eventData.button == PointerEventData.InputButton.Right)
        {
            if (isConsumable)
            {
                // 设置待销毁的游戏对象
                itemPendingConsumption = gameObject;
                consumingFunction(healthEffect, caloriesEffect, hydrationEffect); // 消耗品使用效果计算
            }
        }
    }

    // 当鼠标释放物品时触发
    public void OnPointerUp(PointerEventData eventData)
    {
        if (eventData.button == PointerEventData.InputButton.Right)
        {
            if (isConsumable && itemPendingConsumption == gameObject)
            {
                Destroy(gameObject); // 销毁物品对象
                                              // Destroy(gameObject);
                InventorySystem.Instance.ReCalculeList(); // 重新计算物品列表
                CraftingSystem.Instance.RefreshNeededItems(); // 刷新制作系统所需物品列表
            }
        }
    }

    private void consumingFunction(float healthEffect, float caloriesEffect, float hydrationEffect)
    {
        itemInfoUI.SetActive(false); // 关闭物品信息UI显示
        healthEffectCalculation(healthEffect); // 计算玩家健康值影响
        caloriesEffectCalculation(caloriesEffect); // 计算玩家卡路里值影响
        hydrationEffectCalculation(hydrationEffect); // 计算玩家水分值影响
    }

    private static void healthEffectCalculation(float healthEffect)
    {
        float currentHealth = PlayerState.Instance.currentHealth;
        float maxHealth = PlayerState.Instance.maxHealth;
        if (healthEffect != 0)
        {
            if ((currentHealth + healthEffect) > maxHealth)
            {
                PlayerState.Instance.setHealth(maxHealth);
            }
            else
            {
                PlayerState.Instance.setHealth(currentHealth + healthEffect);
            }
        }
    }

    private static void caloriesEffectCalculation(float caloriesEffect)
    {
        float currentCalories = PlayerState.Instance.currentCalories;
        float maxCalories = PlayerState.Instance.maxCalories;
        if (caloriesEffect != 0)
        {
            if ((currentCalories + caloriesEffect) > maxCalories)
            {
                PlayerState.Instance.setHealth(maxCalories);
            }
            else
            {
                PlayerState.Instance.setHealth(currentCalories + caloriesEffect);
            }
        }
    }

    private static void hydrationEffectCalculation(float hydrationEffect)
    {
        float currentHydrationPercent = PlayerState.Instance.currentHydrationPercent;
        float maxHydrationPercent = PlayerState.Instance.maxHydrationPercent;
        if (hydrationEffect != 0)
        {
            if ((currentHydrationPercent + hydrationEffect) > maxHydrationPercent)
            {
                PlayerState.Instance.setHealth(maxHydrationPercent);
            }
            else
            {
                PlayerState.Instance.setHealth(currentHydrationPercent + hydrationEffect);
            }
        }
    }
}

public void setHealth(float newHealth)
{
    currentHealth = newHealth;
}

public void setCalories(float newCalories)
{
    currentCalories = newCalories;
}

public void setHydration(float newHydration)
{
    currentHydrationPercent = newHydration;
}