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1、目标

当橡树被砍伐时的落叶粒子效果。

2、创建粒子物体

Hierarchy -> PersistentScene下创建新物体命名为DeciduousLeavesFalling。

添加Particle System组件。

基础配置如下：（暂时勾选Looping实时可以看生成效果，后面反选即可）

配置Emission和Shape信息如下：

配置Color over Lifetime：

配置Size over Lifetime / Rotation over Lifetime / Noise 信息如下：

配置Texture / Renderer 信息如下：

将DeciduousLeavesFalling移到Assets -> Prefabs -> Crop -> Effect下

3、修改Crop.cs脚本

[Tooltip("This should be populated from child transform gameobject showing harvest effect spawn point")]
[SerializeField] private Transform harvestActionEffectTransform = null;

在ProcessToolAction函数中添加：

完整代码为：

public void ProcessToolAction(ItemDetails equippedItemDetails, bool isToolRight, bool isToolLeft, bool isToolDown, bool isToolUp)
{// Get grid property detailsGridPropertyDetails gridPropertyDetails = GridPropertiesManager.Instance.GetGridPropertyDetails(cropGridPosition.x, cropGridPosition.y);if (gridPropertyDetails == null)return;// Get seed item detailsItemDetails seedItemDetails = InventoryManager.Instance.GetItemDetails(gridPropertyDetails.seedItemCode);if(seedItemDetails == null) return;// Get crop detailsCropDetails cropDetails = GridPropertiesManager.Instance.GetCropDetails(seedItemDetails.itemCode);if (cropDetails == null) return;// Get animator for crop if presentAnimator animator = GetComponentInChildren<Animator>();// Trigger tool animationif(animator != null){if(isToolRight || isToolUp){animator.SetTrigger("usetoolright");}else if(isToolLeft || isToolDown){animator.SetTrigger("usetoolleft");}}// Trigger tool particle effect on cropif (cropDetails.isHarvestActionEffect){EventHandler.CallHarvestActionEffectEvent(harvestActionEffectTransform.position, cropDetails.harvestActionEffect);}// Get required harvest actions for tool（收获此农作物所需的操作次数）int requiredHarvestActions = cropDetails.RequiredHarvestActionsForTool(equippedItemDetails.itemCode);if (requiredHarvestActions == -1) return;// Increment harvest action countharvestActionCount++;// Check if required harvest actions madeif (harvestActionCount >= requiredHarvestActions)HarvestCrop(isToolRight, isToolUp, cropDetails, gridPropertyDetails, animator);}

4、修改CropTreeCanyonOak预设体

在CropSprite下新增一个物体命名为LeavesSpawnPoint，这个作为特效的参考点，修改其Position（Y）为4。

接着点击CropTreeCanyonOak进行变量赋值。

5、修改PoolManager对象

6、修改VFXManager.cs脚本及配置

添加定义：

 [SerializeField] private GameObject deciduousLeavesFallingPrefab = null;

在displayHarvestActionEffect中添加case信息如下：

case HarvestActionEffect.deciduousLeavesFalling:GameObject deciduousLeavesFalling = PoolManager.Instance.ReuseObject(deciduousLeavesFallingPrefab, effectPosition, Quaternion.identity);deciduousLeavesFalling.SetActive(true);StartCoroutine(DisableHarvestActionEffect(deciduousLeavesFalling, twoSeconds));break;

完整的代码如下：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class VFXManager : SingletonMonobehaviour<VFXManager>
{private WaitForSeconds twoSeconds;[SerializeField] private GameObject reapingPrefab = null;[SerializeField] private GameObject deciduousLeavesFallingPrefab = null;protected override void Awake(){base.Awake();twoSeconds = new WaitForSeconds(2f);}private void OnDisable(){EventHandler.HarvestActionEffectEvent -= displayHarvestActionEffect;}private void OnEnable(){EventHandler.HarvestActionEffectEvent += displayHarvestActionEffect;}private IEnumerator DisableHarvestActionEffect(GameObject effectGameObject, WaitForSeconds secondsToWait){yield return secondsToWait;effectGameObject.SetActive(false);}private void displayHarvestActionEffect(Vector3 effectPosition, HarvestActionEffect harvestActionEffect){switch(harvestActionEffect){case HarvestActionEffect.deciduousLeavesFalling:GameObject deciduousLeavesFalling = PoolManager.Instance.ReuseObject(deciduousLeavesFallingPrefab, effectPosition, Quaternion.identity);deciduousLeavesFalling.SetActive(true);StartCoroutine(DisableHarvestActionEffect(deciduousLeavesFalling, twoSeconds));break;case HarvestActionEffect.reaping:GameObject reaping = PoolManager.Instance.ReuseObject(reapingPrefab, effectPosition, Quaternion.identity);reaping.SetActive(true); StartCoroutine(DisableHarvestActionEffect(reaping, twoSeconds));break;case HarvestActionEffect.none:break;default:break;}}
}

配置VFXManager的信息如下：

7、运行游戏