我有一个名为_scoreTotal的私有int变量
我已经分配了一个名为score的新公共变量，将私有变量_scoreTotal传递给公共静态scores。
所以我需要从其他脚本访问这个值。
这是我的代码：
using UnityEngine;
using System.Collections;
using Holoville.HOTween;
/// <summary>
/// This class is the main entry point of the game it should be attached to a gameobject and be instanciate in the scene
/// Author : Pondomaniac Games
/// </summary>
public class Main : MonoBehaviour {
public static int score;
public GameObject _indicator; //The indicator to know the selected tile
public GameObject[, ] _arrayOfShapes; //The main array that contain all games tiles
private GameObject _currentIndicator; //The current indicator to replace and destroy each time the player change the selection
private GameObject _FirstObject; //The first object selected
private GameObject _SecondObject; //The second object selected
public GameObject[] _listOfGems; //The list of tiles we cant to see in the game you can remplace them in unity's inspector and choose all what you want
public GameObject _emptyGameobject; //After destroying object they are replaced with this one so we will replace them after with new ones
public GameObject _particleEffect; //The object we want to use in the effect of shining stars
public GameObject _particleEffectWhenMatch; //The gameobject of the effect when the objects are matching
public bool _canTransitDiagonally = false; //Indicate if we can switch diagonally
public int _scoreIncrement; //The amount of point to increment each time we find matching tiles
private int _scoreTotal = 0; //The score
private ArrayList _currentParticleEffets = new ArrayList(); //the array that will contain all the matching particle that we will destroy after
public AudioClip MatchSound; //the sound effect when matched tiles are found
public int _gridWidth; //the grid number of cell horizontally
public int _gridHeight; //the grid number of cell vertically
// Use this for initialization
void Start() {
//Initializing the array with _gridWidth and _gridHeight passed in parameter
_arrayOfShapes = new GameObject[_gridWidth, _gridHeight];
//Creating the gems from the list of gems passed in parameter
for (int i = 0; i <= _gridWidth - 1; i++) {
for (int j = 0; j <= _gridHeight - 1; j++) {
var gameObject = GameObject.Instantiate(_listOfGems[Random.Range(0, _listOfGems.Length)] as GameObject, new Vector3(i, j, 0), transform.rotation) as GameObject;
_arrayOfShapes[i, j] = gameObject;
}
}
//Adding the star effect to the gems and call the DoShapeEffect continuously
InvokeRepeating("DoShapeEffect", 1f, 0.21F);
}
// Update is called once per frame
void Update() {
float score = _scoreTotal;
Main.score++;
bool shouldTransit = false;
//Detecting if the player clicked on the left mouse button and also if there is no animation playing
if (Input.GetButtonDown("Fire1") && HOTween.GetTweenInfos() == null) {
Destroy(_currentIndicator);
//The 3 following lines is to get the clicked GameObject and getting the RaycastHit2D that will help us know the clicked object
//Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
RaycastHit2D hit = Physics2D.Raycast(Camera.main.ScreenToWorldPoint(Input.mousePosition), Vector2.zero);
if (hit.transform != null)
{ //To know if the user already selected a tile or not yet
if (_FirstObject == null) _FirstObject = hit.transform.gameObject;
else {
_SecondObject = hit.transform.gameObject;
shouldTransit = true;
}
_currentIndicator = GameObject.Instantiate(_indicator, new Vector3(hit.transform.gameObject.transform.position.x, hit.transform.gameObject.transform.position.y, -1), transform.rotation) as GameObject;
//If the user select the second tile we will swap the two tile and animate them
if (shouldTransit)
{
//Getting the position between the 2 tiles
var distance = _FirstObject.transform.position - _SecondObject.transform.position;
//Testing if the 2 tiles are next to each others otherwise we will not swap them
if (Mathf.Abs(distance.x) <= 1 && Mathf.Abs(distance.y) <= 1)
{ //If we dont want the player to swap diagonally
if (!_canTransitDiagonally)
{
if (distance.x != 0 && distance.y != 0)
{
Destroy(_currentIndicator);
_FirstObject = null;
_SecondObject = null;
return;
}
}
//Animate the transition
DoSwapMotion(_FirstObject.transform, _SecondObject.transform);
//Swap the object in array
DoSwapTile(_FirstObject, _SecondObject, ref _arrayOfShapes);
}
else
{
_FirstObject = null;
_SecondObject = null;
}
Destroy(_currentIndicator);
}
}
}
//If no animation is playing
if (HOTween.GetTweenInfos() == null)
{
var Matches = FindMatch(_arrayOfShapes);
//If we find a matched tiles
if (Matches.Count > 0)
{//Update the score
_scoreTotal += Matches.Count * _scoreIncrement;
score += Matches.Count * _scoreIncrement;
foreach(GameObject go in Matches) {
//Playing the matching sound
GetComponent<AudioSource>().PlayOneShot(MatchSound);
//Creating and destroying the effect of matching
var destroyingParticle = GameObject.Instantiate(_particleEffectWhenMatch as GameObject, new Vector3(go.transform.position.x, go.transform.position.y, -2), transform.rotation) as GameObject;
Destroy(destroyingParticle, 1f);
//Replace the matching tile with an empty one
_arrayOfShapes[(int)go.transform.position.x, (int)go.transform.position.y] = GameObject.Instantiate(_emptyGameobject, new Vector3((int)go.transform.position.x, (int)go.transform.position.y, -1), transform.rotation) as GameObject;
//Destroy the ancient matching tiles
Destroy(go, 0.1f);
}
_FirstObject = null;
_SecondObject = null;
//Moving the tiles down to replace the empty ones
DoEmptyDown(ref _arrayOfShapes);
}
//If no matching tiles are found remake the tiles at their places
else if (_FirstObject != null
&& _SecondObject != null
) {
//Animate the tiles
DoSwapMotion(_FirstObject.transform, _SecondObject.transform);
//Swap the tiles in the array
DoSwapTile(_FirstObject, _SecondObject, ref _arrayOfShapes);
_FirstObject = null;
_SecondObject = null;
}
}
//Update the score
(GetComponent(typeof(TextMesh))as TextMesh).text = _scoreTotal.ToString();
}
// Find Match-3 Tile
private ArrayList FindMatch(GameObject[, ] cells)
{//creating an arraylist to store the matching tiles
ArrayList stack = new ArrayList();
//Checking the vertical tiles
for (var x = 0; x <= cells.GetUpperBound(0); x++)
{
for (var y = 0; y <= cells.GetUpperBound(1); y++)
{
var thiscell = cells[x, y];
//If it's an empty tile continue
if (thiscell.name == "Empty(Clone)") continue;
int matchCount = 0;
int y2 = cells.GetUpperBound(1);
int y1;
//Getting the number of tiles of the same kind
for (y1 = y + 1; y1 <= y2; y1++)
{
if (cells[x, y1].name == "Empty(Clone)" || thiscell.name != cells[x, y1].name) break;
matchCount++;
}
//If we found more than 2 tiles close we add them in the array of matching tiles
if (matchCount >= 2)
{
y1 = Mathf.Min(cells.GetUpperBound(1), y1 - 1);
for (var y3 = y; y3 <= y1; y3++)
{
if (!stack.Contains(cells[x, y3]))
{
stack.Add(cells[x, y3]);
}
}
}
}
}
//Checking the horizontal tiles , in the following loops we will use the same concept as the previous ones
for (var y = 0; y < cells.GetUpperBound(1) + 1; y++)
{
for (var x = 0; x < cells.GetUpperBound(0) + 1; x++)
{
var thiscell = cells[x, y];
if (thiscell.name == "Empty(Clone)") continue;
int matchCount = 0;
int x2 = cells.GetUpperBound(0);
int x1;
for (x1 = x + 1; x1 <= x2; x1++)
{
if (cells[x1, y].name == "Empty(Clone)" || thiscell.name != cells[x1, y].name) break;
matchCount++;
}
if (matchCount >= 2)
{
x1 = Mathf.Min(cells.GetUpperBound(0), x1 - 1);
for (var x3 = x; x3 <= x1; x3++)
{
if (!stack.Contains(cells[x3, y]))
{
stack.Add(cells[x3, y]);
}
}
}
}
}
return stack;
}
// Swap Motion Animation, to animate the switching arrays
void DoSwapMotion(Transform a, Transform b)
{
Vector3 posA = a.localPosition;
Vector3 posB = b.localPosition;
TweenParms parms = new TweenParms().Prop("localPosition", posB).Ease(EaseType.EaseOutQuart);
HOTween.To(a, 0.25f, parms).WaitForCompletion();
parms = new TweenParms().Prop("localPosition", posA).Ease(EaseType.EaseOutQuart);
HOTween.To(b, 0.25f, parms).WaitForCompletion();
}
// Swap Two Tile, it swaps the position of two objects in the grid array
void DoSwapTile(GameObject a, GameObject b, ref GameObject[, ] cells)
{
GameObject cell = cells[(int)a.transform.position.x, (int)a.transform.position.y];
cells[(int)a.transform.position.x, (int)a.transform.position.y] = cells[(int)b.transform.position.x, (int)b.transform.position.y];
cells[(int)b.transform.position.x, (int)b.transform.position.y] = cell;
}
// Do Empty Tile Move Down
private void DoEmptyDown(ref GameObject[, ] cells)
{ //replace the empty tiles with the ones above
for (int x = 0; x <= cells.GetUpperBound(0); x++)
{
for (int y = 0; y <= cells.GetUpperBound(1); y++)
{
var thisCell = cells[x, y];
if (thisCell.name == "Empty(Clone)")
{
for (int y2 = y; y2 <= cells.GetUpperBound(1); y2++)
{
if (cells[x, y2].name != "Empty(Clone)")
{
cells[x, y] = cells[x, y2];
cells[x, y2] = thisCell;
break;
}
}
}
}
}
//Instantiate new tiles to replace the ones destroyed
for (int x = 0; x <= cells.GetUpperBound(0); x++)
{
for (int y = 0; y <= cells.GetUpperBound(1); y++)
{
if (cells[x, y].name == "Empty(Clone)")
{
Destroy(cells[x, y]);
cells[x, y] = GameObject.Instantiate(_listOfGems[Random.Range(0, _listOfGems.Length)] as GameObject, new Vector3(x, cells.GetUpperBound(1) + 2, 0), transform.rotation) as GameObject;
}
}
}
for (int x = 0; x <= cells.GetUpperBound(0); x++)
{
for (int y = 0; y <= cells.GetUpperBound(1); y++)
{
TweenParms parms = new TweenParms().Prop("position", new Vector3(x, y, -1)).Ease(EaseType.EaseOutQuart);
HOTween.To(cells[x, y].transform, .4f, parms);
}
}
}
//Instantiate the star objects
void DoShapeEffect()
{
foreach(GameObject row in _currentParticleEffets)
Destroy(row);
for (int i = 0; i <= 2; i++)
_currentParticleEffets.Add(GameObject.Instantiate(_particleEffect, new Vector3(Random.Range(0, _arrayOfShapes.GetUpperBound(0) + 1), Random.Range(0, _arrayOfShapes.GetUpperBound(1) + 1), -1), new Quaternion(0, 0, Random.Range(0, 1000f), 100)) as GameObject);
}
}
答案 0 :(得分：0)
静态字段无法引用实例字段。你可以做的是将_scoreTotal改为公共静态。
然而，看起来你的设计是有缺陷的 - 如果你有两个Main实例，那么你只能有一个静态得分变量但是两个_scoreTotal。你会参考哪一个？如果您只能有一个Main实例，那么请考虑将所有变量更改为static或将其设为Singleton。