1、目標

當點擊水壺時，實現澆水的動畫。同時有一個水從水壺中流出來的特效。

假如某個grid被澆過了，則不能再澆水了。。

如果某個grid沒有被dug過，也不能被澆水。

2、優化Settings.cs腳本

增加如下內容：

  public static float liftToolAnimationPause = 0.4f;public static float afterLiftToolAnimationPause = 0.4f;

3、優化Player.cs腳本

添加以下代碼：

private WaitForSeconds afterLiftToolAnimationPause;
private WaitForSeconds liftToolAnimationPause;// 在Start函數中添加如下代碼
liftToolAnimationPause = new WaitForSeconds(Settings.liftToolAnimationPause);
afterLiftToolAnimationPause = new WaitForSeconds(Settings.afterLiftToolAnimationPause);

在ProcessPlayerClickInput的switch中增加如下一行代碼：

在ProcessPlayerClickInputTool中增加如下代碼：

添加如下代碼：

 private void WaterGroundAtCursor(GridPropertyDetails gridPropertyDetails, Vector3Int playerDirection) { // Trigger animationStartCoroutine(WaterGroundAtCursorRoutine(playerDirection, gridPropertyDetails));}

添加如下代碼：

private IEnumerator WaterGroundAtCursorRoutine(Vector3Int playerDirection, GridPropertyDetails gridPropertyDetails) 
{PlayerInputIsDisabled = true;playerToolUseDisabled = true;// Set tool animation to watering can in override animationtoolCharacterAttribute.partVariantType = PartVariantType.wateringCan;characterAttributeCustomisationList.Clear();characterAttributeCustomisationList.Add(toolCharacterAttribute);animationOverrides.ApplyCharacterCustomisationParameters(characterAttributeCustomisationList);toolEffect = ToolEffect.watering;if(playerDirection == Vector3Int.right){isLiftingToolRight = true;}else if(playerDirection == Vector3Int.left){isLiftingToolLeft = true;}else if(playerDirection == Vector3Int.up){isLiftingToolUp = true;}else if(playerDirection == Vector3Int.down){isLiftingToolDown = true;}yield return liftToolAnimationPause;// Set Grid property details for watered groundif(gridPropertyDetails.daysSinceWatered == -1){gridPropertyDetails.daysSinceWatered = 0;}// Set grid property to wateredGridPropertiesManager.Instance.SetGridPropertyDetails(gridPropertyDetails.gridX, gridPropertyDetails.gridY, gridPropertyDetails);// After animation pauseyield return afterLiftToolAnimationPause;PlayerInputIsDisabled = false;playerToolUseDisabled = false;
}

其中：

ToolEffect.watering是枚舉值，值為1.

watering的觸發條件：

Player.cs完整代碼：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class Player : SingletonMonobehaviour<Player>
{private WaitForSeconds afterUseToolAnimationPause;private WaitForSeconds useToolAnimationPause;private WaitForSeconds afterLiftToolAnimationPause;private WaitForSeconds liftToolAnimationPause;private bool playerToolUseDisabled = false;  // 如果玩家正在使用某個道具，其他道具將被禁用private AnimationOverrides animationOverrides;  // 動畫重寫控制器private GridCursor gridCursor;private List<CharacterAttribute> characterAttributeCustomisationList;  // 目標動作列表[Tooltip("Should be populated in the prefab with the equippped item sprite renderer")][SerializeField] private SpriteRenderer equippedItemSpriteRenderer = null; // 武器的圖片// Player attributes that can be swappedprivate CharacterAttribute armsCharacterAttribute;private CharacterAttribute toolCharacterAttribute;private float xInput;private float yInput;private bool isWalking;private bool isRunning;private bool isIdle;private bool isCarrying = false;private ToolEffect toolEffect = ToolEffect.none;private bool isUsingToolRight;private bool isUsingToolLeft;private bool isUsingToolUp;private bool isUsingToolDown;private bool isLiftingToolRight;private bool isLiftingToolLeft;private bool isLiftingToolUp;private bool isLiftingToolDown;private bool isPickingRight;private bool isPickingLeft;private bool isPickingUp;private bool isPickingDown;private bool isSwingToolRight;private bool isSwingToolLeft;private bool isSwingToolUp;private bool isSwingToolDown;private Camera mainCamera;private Rigidbody2D rigidbody2D;private Direction playerDirection;private float movementSpeed;private bool _playerInputIsDisabled = false;public bool PlayerInputIsDisabled { get => _playerInputIsDisabled; set => _playerInputIsDisabled = value; }protected override void Awake(){base.Awake();rigidbody2D = GetComponent<Rigidbody2D>();animationOverrides = GetComponentInChildren<AnimationOverrides>();// Initialise swappable character attributesarmsCharacterAttribute = new CharacterAttribute(CharacterPartAnimator.arms, PartVariantColour.none, PartVariantType.none);// Initialise character attribute listcharacterAttributeCustomisationList = new List<CharacterAttribute>();mainCamera = Camera.main;}private void Start(){gridCursor = FindObjectOfType<GridCursor>();useToolAnimationPause = new WaitForSeconds(Settings.useToolAnimationPause);afterUseToolAnimationPause = new WaitForSeconds(Settings.afterUseToolAnimationPause);liftToolAnimationPause = new WaitForSeconds(Settings.liftToolAnimationPause);afterLiftToolAnimationPause = new WaitForSeconds(Settings.afterLiftToolAnimationPause);}private void Update(){#region  Player Inputif (!PlayerInputIsDisabled){ResetAnimationTrigger();PlayerMovementInput();PlayerWalkInput();PlayerClickInput();PlayerTestInput();// Send event to any listeners for player movement inputEventHandler.CallMovementEvent(xInput, yInput, isWalking, isRunning, isIdle, isCarrying, toolEffect,isUsingToolRight, isUsingToolLeft, isUsingToolUp, isUsingToolDown,isLiftingToolRight, isLiftingToolLeft, isLiftingToolUp, isLiftingToolDown,isPickingRight, isPickingLeft, isPickingUp, isPickingDown,isSwingToolRight, isSwingToolLeft, isSwingToolUp, isSwingToolDown,false, false, false, false);}#endregion Player Input}private void FixedUpdate(){PlayerMovement();}/// <summary>/// 展示拿東西的動畫/// </summary>/// <param name="itemCode"></param>public void ShowCarriedItem(int itemCode){ItemDetails itemDetails = InventoryManager.Instance.GetItemDetails(itemCode);if(itemDetails != null){equippedItemSpriteRenderer.sprite = itemDetails.itemSprite;equippedItemSpriteRenderer.color = new Color(1f, 1f, 1f, 1f);// Apply 'carry' character arms customisationarmsCharacterAttribute.partVariantType = PartVariantType.carry;characterAttributeCustomisationList.Clear();characterAttributeCustomisationList.Add(armsCharacterAttribute);animationOverrides.ApplyCharacterCustomisationParameters(characterAttributeCustomisationList);isCarrying = true;}}public void ClearCarriedItem(){equippedItemSpriteRenderer.sprite = null;equippedItemSpriteRenderer.color = new Color(1f, 1f, 1f, 0f);// Apply base character arms customisationarmsCharacterAttribute.partVariantType = PartVariantType.none;characterAttributeCustomisationList.Clear();characterAttributeCustomisationList.Add(armsCharacterAttribute);animationOverrides.ApplyCharacterCustomisationParameters(characterAttributeCustomisationList);isCarrying = false;}private void PlayerMovement(){Vector2 move = new Vector2(xInput * movementSpeed * Time.deltaTime, yInput * movementSpeed * Time.deltaTime);rigidbody2D.MovePosition(rigidbody2D.position + move);}private void ResetAnimationTrigger(){toolEffect = ToolEffect.none;isUsingToolRight = false;isUsingToolLeft = false;isUsingToolUp = false;isUsingToolDown = false;isLiftingToolRight = false;isLiftingToolLeft = false;isLiftingToolUp = false;isLiftingToolDown = false;isPickingRight = false;isPickingLeft = false;isPickingUp = false;isPickingDown = false;isSwingToolRight = false;isSwingToolLeft = false;isSwingToolUp = false;isSwingToolDown = false;}private void PlayerMovementInput(){xInput = Input.GetAxisRaw("Horizontal");yInput = Input.GetAxisRaw("Vertical");// 斜著移動if (xInput != 0 && yInput != 0) {xInput = xInput * 0.71f;yInput = yInput * 0.71f;}// 在移動if (xInput != 0 || yInput != 0) {isRunning = true;isWalking = false;isIdle = false;movementSpeed = Settings.runningSpeed;// Capture player direction for save gameif (xInput < 0){playerDirection = Direction.left;}else if (xInput > 0){playerDirection = Direction.right;}else if (yInput < 0){playerDirection = Direction.down;}else{playerDirection = Direction.up;}}else if(xInput == 0 && yInput == 0){isRunning = false;isWalking = false;isIdle = true;}}// 按住Shift鍵移動為walkprivate void PlayerWalkInput(){if(Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift)){isRunning = false;isWalking = true;isIdle = false;movementSpeed = Settings.walkingSpeed;}else{isRunning = true;isWalking = false;isIdle = false;movementSpeed = Settings.runningSpeed;}}private void PlayerClickInput(){if (!playerToolUseDisabled){if (Input.GetMouseButton(0)){if (gridCursor.CursorIsEnabled){// Get Cursor Grid PositionVector3Int cursorGridPosition = gridCursor.GetGridPositionForCursor();// Get Player Grid PositionVector3Int playerGridPosition = gridCursor.GetGridPositionForPlayer();ProcessPlayerClickInput(cursorGridPosition, playerGridPosition);}}}}private void ProcessPlayerClickInput(Vector3Int cursorGridPosition, Vector3Int playerGridPosition){ResetMovement();Vector3Int playerDirection = GetPlayerClickDirection(cursorGridPosition, playerGridPosition);// Get Selected item detailsItemDetails itemDetails = InventoryManager.Instance.GetSelectedInventoryItemDetails(InventoryLocation.player);// Get Grid property details at cursor position (the GridCursor validation routine ensures that grid property details are not null)GridPropertyDetails gridPropertyDetails = GridPropertiesManager.Instance.GetGridPropertyDetails(cursorGridPosition.x, cursorGridPosition.y);if(itemDetails != null){switch (itemDetails.itemType){case ItemType.Seed:if (Input.GetMouseButtonDown(0)){ProcessPlayerClickInputSeed(itemDetails);}break;case ItemType.Commodity:if (Input.GetMouseButtonDown(0)){ProcessPlayerClickInputCommodity(itemDetails);}break;case ItemType.Watering_tool:case ItemType.Hoeing_tool:ProcessPlayerClickInputTool(gridPropertyDetails, itemDetails, playerDirection);break;case ItemType.none:break;case ItemType.count:break;default:break;}}}private Vector3Int GetPlayerClickDirection(Vector3Int cursorGridPosition, Vector3Int playerGridPosition) {if(cursorGridPosition.x > playerGridPosition.x){return Vector3Int.right;}else if(cursorGridPosition.x < playerGridPosition.x){return Vector3Int.left;}else if(cursorGridPosition.y > playerGridPosition.y){return Vector3Int.up;}else{return Vector3Int.down;}}private void ProcessPlayerClickInputSeed(ItemDetails itemDetails){if(itemDetails.canBeDropped && gridCursor.CursorPositionIsValid){EventHandler.CallDropSelectedItemEvent();}}private void ProcessPlayerClickInputCommodity(ItemDetails itemDetails){if(itemDetails.canBeDropped && gridCursor.CursorPositionIsValid){EventHandler.CallDropSelectedItemEvent();}}private void ProcessPlayerClickInputTool(GridPropertyDetails gridPropertyDetails, ItemDetails itemDetails, Vector3Int playerDirection){// Switch on toolswitch (itemDetails.itemType){case ItemType.Hoeing_tool:if (gridCursor.CursorPositionIsValid){HoeGroundAtCursor(gridPropertyDetails, playerDirection);}break;case ItemType.Watering_tool:if (gridCursor.CursorPositionIsValid){WaterGroundAtCursor(gridPropertyDetails, playerDirection);}break;default:break;}}private void WaterGroundAtCursor(GridPropertyDetails gridPropertyDetails, Vector3Int playerDirection) { // Trigger animationStartCoroutine(WaterGroundAtCursorRoutine(playerDirection, gridPropertyDetails));}private IEnumerator WaterGroundAtCursorRoutine(Vector3Int playerDirection, GridPropertyDetails gridPropertyDetails) {PlayerInputIsDisabled = true;playerToolUseDisabled = true;// Set tool animation to watering can in override animationtoolCharacterAttribute.partVariantType = PartVariantType.wateringCan;characterAttributeCustomisationList.Clear();characterAttributeCustomisationList.Add(toolCharacterAttribute);animationOverrides.ApplyCharacterCustomisationParameters(characterAttributeCustomisationList);toolEffect = ToolEffect.watering;if(playerDirection == Vector3Int.right){isLiftingToolRight = true;}else if(playerDirection == Vector3Int.left){isLiftingToolLeft = true;}else if(playerDirection == Vector3Int.up){isLiftingToolUp = true;}else if(playerDirection == Vector3Int.down){isLiftingToolDown = true;}yield return liftToolAnimationPause;// Set Grid property details for watered groundif(gridPropertyDetails.daysSinceWatered == -1){gridPropertyDetails.daysSinceWatered = 0;}// Set grid property to wateredGridPropertiesManager.Instance.SetGridPropertyDetails(gridPropertyDetails.gridX, gridPropertyDetails.gridY, gridPropertyDetails);// After animation pauseyield return afterLiftToolAnimationPause;PlayerInputIsDisabled = false;playerToolUseDisabled = false;}private void HoeGroundAtCursor(GridPropertyDetails gridPropertyDetails, Vector3Int playerDirection) {// Trigger animationStartCoroutine(HoeGroundAtCursorRoutine(playerDirection, gridPropertyDetails));}private IEnumerator HoeGroundAtCursorRoutine(Vector3Int playerDirection, GridPropertyDetails gridPropertyDetails){PlayerInputIsDisabled = true;playerToolUseDisabled = true;// Set tool animation to hoe in override animationtoolCharacterAttribute.partVariantType = PartVariantType.hoe;characterAttributeCustomisationList.Clear();characterAttributeCustomisationList.Add(toolCharacterAttribute);animationOverrides.ApplyCharacterCustomisationParameters(characterAttributeCustomisationList);if(playerDirection == Vector3Int.right){isUsingToolRight = true;}else if(playerDirection == Vector3Int.left){isUsingToolLeft = true;}else if(playerDirection == Vector3Int.up){isUsingToolUp = true;}else if(playerDirection == Vector3Int.down){isUsingToolDown = true;}yield return useToolAnimationPause;// Set Grid property details for dug groundif(gridPropertyDetails.daysSinceDug == -1){gridPropertyDetails.daysSinceDug = 0;}// Set grid property to dugGridPropertiesManager.Instance.SetGridPropertyDetails(gridPropertyDetails.gridX, gridPropertyDetails.gridY, gridPropertyDetails);// Display dug grid tilesGridPropertiesManager.Instance.DisplayDugGround(gridPropertyDetails);// After animation pauseyield return afterUseToolAnimationPause;PlayerInputIsDisabled = false;playerToolUseDisabled = false;}public Vector3 GetPlayerViewportPosition(){// Vector3 viewport position for player (0,0) viewport bottom left, (1,1) viewport top rightreturn mainCamera.WorldToViewportPoint(gameObject.transform.position);}public void DisablePlayerInputAndResetMovement(){DisablePlayerInpupt();ResetMovement();// Send event to any listeners for player movement inputEventHandler.CallMovementEvent(xInput, yInput, isWalking, isRunning, isIdle, isCarrying, toolEffect,isUsingToolRight, isUsingToolLeft, isUsingToolUp, isUsingToolDown,isLiftingToolRight, isLiftingToolLeft, isLiftingToolUp, isLiftingToolDown,isPickingRight, isPickingLeft, isPickingUp, isPickingDown,isSwingToolRight, isSwingToolLeft, isSwingToolUp, isSwingToolDown,false, false, false, false);}private void ResetMovement(){// Reset movementxInput = 0f;yInput = 0f;isRunning = false;isWalking = false;isIdle = true;}public void DisablePlayerInpupt(){PlayerInputIsDisabled = true;}public void EnablePlayerInput(){PlayerInputIsDisabled = false;}/// <summary>/// Temp routine for test input/// </summary>private void PlayerTestInput(){// Trigger Advance Timeif (Input.GetKeyDown(KeyCode.T)){TimeManager.Instance.TestAdvanceGameMinute();}// Trigger Advance Dayif (Input.GetKeyDown(KeyCode.G)){TimeManager.Instance.TestAdvanceGameDay();}// Test scene unload / loadif (Input.GetKeyDown(KeyCode.L)){SceneControllerManager.Instance.FadeAndLoadScene(SceneName.Scene1_Farm.ToString(), transform.position);}}
}

4、優化GridCursor.cs腳本

1）調整SetCursorValidity的邏輯。

增加如下一行代碼：

2）調整IsCursorValidForTool的邏輯。

添加如下代碼：

其完整代碼如下：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;public class GridCursor : MonoBehaviour
{private Canvas canvas; // 存儲白色畫布，UI光標位于其中private Grid grid;  // tilemap地圖private Camera mainCamera; // 對主相機的引用[SerializeField] private Image cursorImage = null;[SerializeField] private RectTransform cursorRectTransform = null;  // 光標對象的引用[SerializeField] private Sprite greenCursorSprite = null;[SerializeField] private Sprite redCursorSprite = null;private bool _cursorPositionIsValid = false;public bool CursorPositionIsValid { get => _cursorPositionIsValid; set => _cursorPositionIsValid = value; }private int _itemUseGridRadius = 0;public int ItemUseGridRadius { get => _itemUseGridRadius; set => _itemUseGridRadius = value; }private ItemType _selectedItemType;public ItemType SelectedItemType { get => _selectedItemType; set => _selectedItemType = value; }private bool _cursorIsEnabled = false;public bool CursorIsEnabled { get => _cursorIsEnabled; set => _cursorIsEnabled = value; }private void OnDisable(){EventHandler.AfterSceneLoadEvent -= SceneLoaded;}private void OnEnable(){EventHandler.AfterSceneLoadEvent += SceneLoaded;}// Start is called before the first frame updatevoid Start(){mainCamera = Camera.main;canvas = GetComponentInParent<Canvas>();}// Update is called once per framevoid Update(){if (CursorIsEnabled){DisplayCursor();}}private Vector3Int DisplayCursor(){if (grid != null){   // 之所以需要Grid是因為某些定位是基于grid的// Get grid position for cursorVector3Int gridPosition = GetGridPositionForCursor();// Get grid position for playerVector3Int playerGridPosition = GetGridPositionForPlayer();// Set cursor sprite,基于gridPosition和playerGridPosition設置光標的有效性SetCursorValidity(gridPosition, playerGridPosition);// Get rect transform position for cursorcursorRectTransform.position = GetRectTransformPositionForCursor(gridPosition);return gridPosition;}else{return Vector3Int.zero;}}public Vector3Int GetGridPositionForCursor(){// z is how far the objects are in front of the camera - camera is at -10 so objects are(-)-10 in front = 10Vector3 worldPosition = mainCamera.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, -mainCamera.transform.position.z));return grid.WorldToCell(worldPosition);}public Vector3Int GetGridPositionForPlayer(){return grid.WorldToCell(Player.Instance.transform.position);}public Vector2 GetRectTransformPositionForCursor(Vector3Int gridPosition){Vector3 gridWorldPosition = grid.CellToWorld(gridPosition);Vector2 gridScreenPosition = mainCamera.WorldToScreenPoint(gridWorldPosition);return RectTransformUtility.PixelAdjustPoint(gridScreenPosition, cursorRectTransform, canvas);}private void SceneLoaded(){grid = GameObject.FindObjectOfType<Grid>();}private void SetCursorValidity(Vector3Int cursorGridPosition, Vector3Int playerGridPosition){SetCursorToValid();// Check item use radius is validif(Mathf.Abs(cursorGridPosition.x -  playerGridPosition.x) > ItemUseGridRadius|| Mathf.Abs(cursorGridPosition.y - playerGridPosition.y) > ItemUseGridRadius){SetCursorToInvalid();return;}// Get selected item details ItemDetails itemDetails = InventoryManager.Instance.GetSelectedInventoryItemDetails(InventoryLocation.player);if(itemDetails == null){SetCursorToInvalid();return;}// Get grid property details at cursor positionGridPropertyDetails gridPropertyDetails = GridPropertiesManager.Instance.GetGridPropertyDetails(cursorGridPosition.x, cursorGridPosition.y);if(gridPropertyDetails != null){// Determine cursor validity based on inventory item selected and grid property detailsswitch (itemDetails.itemType){case ItemType.Seed:if (!IsCursorValidForSeed(gridPropertyDetails)){SetCursorToInvalid();return;}break;case ItemType.Commodity:if (!IsCursorValidForCommodity(gridPropertyDetails)){SetCursorToInvalid();return;}break;case ItemType.Watering_tool:case ItemType.Hoeing_tool:if(!IsCursorValidForTool(gridPropertyDetails, itemDetails)){SetCursorToInvalid();return;}break;case ItemType.none:break;case ItemType.count:break;default:break;}}else{SetCursorToInvalid();return;}}private bool IsCursorValidForSeed(GridPropertyDetails gridPropertyDetails){return gridPropertyDetails.canDropItem;}private bool IsCursorValidForCommodity(GridPropertyDetails gridPropertyDetails){return gridPropertyDetails.canDropItem;}/// <summary>/// Sets the cursor as either valid or invalid for the tool for the target gridPropertyDetails. /// Returns true if valid or false if invalid/// </summary>/// <param name="gridPropertyDetails"></param>/// <param name="itemDetails"></param>/// <returns></returns>private bool IsCursorValidForTool(GridPropertyDetails gridPropertyDetails, ItemDetails itemDetails){// Switch on toolswitch (itemDetails.itemType){case ItemType.Hoeing_tool:if (gridPropertyDetails.isDiggable == true && gridPropertyDetails.daysSinceDug == -1){#region Need to get any items at location so we can check if they are reapable// Get world position for cursorVector3 cursorWorldPosition = new Vector3(GetWorldPositionForCursor().x + 0.5f, GetWorldPositionForCursor().y + 0.5f, 0f);// Get list of items at cursor locationList<Item> itemList = new List<Item>();HelperMethods.GetComponentsAtBoxLocation<Item>(out itemList, cursorWorldPosition, Settings.cursorSize, 0f);#endregion// Loop through items found to see if any are reapable type - we are not goint to let the player dig where there are reapable scenary itemsbool foundReapable = false;foreach(Item item in itemList){if(InventoryManager.Instance.GetItemDetails(item.ItemCode).itemType == ItemType.Reapable_scenary){foundReapable = true;break;}}if (foundReapable){return false;}else{return true;}}else{return false;}case ItemType.Watering_tool:if(gridPropertyDetails.daysSinceDug > -1 && gridPropertyDetails.daysSinceWatered == -1){return true;}else{return false;}default:return false;}}private void SetCursorToValid(){cursorImage.sprite = greenCursorSprite;CursorPositionIsValid = true;}private void SetCursorToInvalid(){cursorImage.sprite = redCursorSprite;CursorPositionIsValid = false;}/// <summary>/// DisableCursor is called in the UIInventorySlot.ClearCursors() method when an inventory slot item is no longer selected/// </summary>public void DisableCursor(){cursorImage.color = Color.clear;CursorIsEnabled = false;}/// <summary>/// EnableCursor is called in the UIInventorySlot.SetSelectedItem() method when an inventory slot item is selected and its itemUseGrid radius>0/// </summary>public void EnableCursor(){cursorImage.color = new Color(1f, 1f, 1f, 1f);CursorIsEnabled = true;}public Vector3 GetWorldPositionForCursor(){return grid.CellToWorld(GetGridPositionForCursor());}}

5、設置澆水半徑

默認情況下也是1，無需改動。

6、運行游戲