如何将物品放在盒子上以及如何将其带回 3D 中的角色

最初，我是通过创建和删除一个对象来完成的，但我遇到了一个公共领域的项目，它可以做我想做的事情，但是是 2D 的。项目。

一般来说，据我了解，这个想法是我们通过ScriptableObject通过图层更改桌子上的精灵 。

ps什么是OverlaySprite，一个空对象？为什么它像一个预制件，但是灰色的，虽然它是活动的。

主要代码：

作物资产：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[CreateAssetMenu(fileName = "New Crop", menuName = "Crop")]
public class CropAsset : ScriptableObject
{
    public Sprite seedSprite;
    public Sprite deadSprite;
    public Sprite doneSprite;

    public bool seedIsOnGround = false;
}

庄稼：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[System.Serializable]
public class Crop
{
    public CropAsset asset;

    public CropState state;

    private float growthLevel;
    private float waterLevel;
    private bool isDead;

    public bool Grow(float amount)
    {
        if (GetWaterState() == WaterState.Watered)
        {
            growthLevel += amount / 20f;
        }

        if (growthLevel >= 1f)
        {
            state = CropState.Done;
            return true;
        }

        return false;
    }

    public WaterState Dry(float amount)
    {
        waterLevel -= amount / 8f;
        return GetWaterState();
    }

    public WaterState GetWaterState ()
    {
        if (waterLevel > 0f)
        {
            return WaterState.Watered;
        }
        else if (waterLevel > -1f)
        {
            return WaterState.Dry;
        }
        else
        {
            state = CropState.Dead;
            return WaterState.Dead;
        }
    }

    public void Water ()
    {
        waterLevel = 1f;
    }

    public Crop (CropAsset a) {
        asset = a;
        state = CropState.Seed;
        growthLevel = 0f;
        waterLevel = 1f;
        isDead = false;
    }

    public bool HasCrop()
    {
        if (asset == null)
            return false;
        else
            return true;
    }

    public Sprite GetCropSprite()
    {
        if (asset == null)
            return null;

        switch (state)
        {
            case CropState.Seed:
                return asset.seedSprite;
            case CropState.Planted:
                return asset.seedSprite;
            case CropState.Dead:
                return asset.deadSprite;
            case CropState.Done:
                return asset.doneSprite;
        }

        Debug.LogError("WHAT?!");
        return asset.seedSprite;
    }

    public bool IsOnGround()
    {
        if (state == CropState.Planted && asset.seedIsOnGround)
            return true;
        else
            return false;
    }

    public Sprite GetDoneSprite()
    {
        return asset.doneSprite;
    }

    public string GetName()
    {
        if (asset == null)
            return null;

        return asset.name;
    }
}

public enum CropState
{
    Seed,
    Planted,
    Dead,
    Done
}

public enum WaterState
{
    Watered,
    Dry,
    Dead
}

工具：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[CreateAssetMenu(fileName = "New Tool", menuName = "Tool")]
public class Tool : ScriptableObject
{
    public Sprite sprite;
    public ToolType toolType;
}

public enum ToolType
{
    Plow,
    Watercan
}

平铺：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class TableTile : MonoBehaviour
{
    public SpriteRenderer overlay;

    public Crop crop;
    public Tool tool;

    private void Start()
    {
        if (crop.HasCrop())
            overlay.sprite = crop.GetCropSprite();
        else if (tool != null)
            overlay.sprite = tool.sprite;
    }

    public void Interact(Crop c, Tool t, PlayerInteraction player)
    {
        player.SetCrop(crop);
        crop = c;
        player.SetTool(tool);
        tool = t;

        if (tool != null)
            overlay.sprite = tool.sprite;
        else if (crop != null)
            overlay.sprite = crop.GetCropSprite();
        else
            overlay.sprite = null;
    }

}

我想做同样的事情，但对于 3D 对象。建议我将使用 Sprite 和 SpriteRenderer 的位置更改为 Mesh 和 MeshRenderer。

我的代码：

成分资产：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[CreateAssetMenu(fileName = "New Ingredient", menuName = "Ingredient")]
public class IngredientAsset : ScriptableObject {

    public Mesh ingredientMesh;

}

成分：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[System.Serializable]
public class Ingredient : MonoBehaviour {

    public IngredientAsset asset;

    public Ingredient (IngredientAsset a) {
        asset = a;
    }

    public bool HasIngrediend()
    {
        if (asset == null)
            return false;
        else
            return true;
    }

    public Mesh GetIngrediendObject()
    {
        if (asset == null)
            return null;

        return asset.ingredientMesh;

    }
}

设备资产：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[CreateAssetMenu(fileName = "New Equipment", menuName = "Equipment")]
public class EquipmentAsset : ScriptableObject {

    public Mesh equipmentMesh;

}

表框：

using System.Collections.Generic;
using UnityEngine;

public class TableBox : MonoBehaviour {

    public MeshRenderer overlay;

    public Ingredient ingredient;
    public EquipmentAsset equipment;

    private void Start()
    {
        if (ingredient.HasIngrediend())
            overlay.mesh = ingredient.GetIngrediendObject();
        else if (equipment != null)
            overlay.mesh = equipment.mesh;
    }

    public void Interact(Ingredient c, EquipmentAsset t, PlayerInteraction player)
    {
        player.SetIngredient(ingredient);
        ingredient = c;
        player.SetEquipment(equipment);
        equipment = t;

        if (equipment != null)
            overlay.sprite = equipment.mesh;
        else if (ingredient != null)
            overlay.mesh = ingredient.GetIngrediendObject();
        else
            overlay.mesh = null;
    }
}

Но начиная с момента создания моих ScriptableObjects типа mesh, в моей версии Crop ругается на overlay.mesh.

Сам стол:

Overlay: Прошу помочь разобраться как преобразовать данную функцию к 3Д объектам. Правильно ли то что мне подсказали? Правильно ли так делать? Можно также но с префабами?