以前のスクリーンショット スクリプトはホット アップデート シナリオでは使用できなかったため、私は非常に無力で、問題を解決するために複数のテストを実行する必要がありました。
プレハブ構造図
オリジナルのスクリプトはホットアップデートなしで使用できます。どのボスが書いたか忘れました。オリジナルではありません。ボスに感謝します。
using UnityEngine;
using System.Collections;
using System.IO;
using System;
using System.Runtime.InteropServices;
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public class OpenFileName
{
public int structSize = 0;
public IntPtr dlgOwner = IntPtr.Zero;
public IntPtr instance = IntPtr.Zero;
public String filter = null;
public String customFilter = null;
public int maxCustFilter = 0;
public int filterIndex = 0;
public String file = null;
public int maxFile = 0;
public String fileTitle = null;
public int maxFileTitle = 0;
public String initialDir = null;
public String title = null;
public int flags = 0;
public short fileOffset = 0;
public short fileExtension = 0;
public String defExt = null;
public IntPtr custData = IntPtr.Zero;
public IntPtr hook = IntPtr.Zero;
public String templateName = null;
public IntPtr reservedPtr = IntPtr.Zero;
public int reservedInt = 0;
public int flagsEx = 0;
}
public class SelectFileDialog
{
//指定系统函数
[DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
public static extern bool GetSaveFileName([In, Out] OpenFileName ofn);
public static bool GetSFN([In, Out] OpenFileName ofn)
{
return GetSaveFileName(ofn);
}
}
public class CutUI : MonoBehaviour
{
Vector2 StartPos,TempPos; //画布内位置
Vector3 StMsPos, EdMsPos; //屏幕内位置
public RectTransform SelImg;
private RectTransform Canvas;
public GameObject CutBtns,StartCut;
bool isCutting = false, isPressed = false;
private void Start()
{
CutBtns.SetActive(false);
SelImg.gameObject.SetActive(false);
Canvas = GameObject.Find("Canvas").GetComponent<RectTransform>();
}
// Update is called once per frame
void Update()
{
if (isCutting && Input.GetMouseButtonDown(0))
{
isPressed = true;
CutBtns.SetActive(false);
SelImg.gameObject.SetActive(true);
StMsPos = Input.mousePosition;
RectTransformUtility.ScreenPointToLocalPointInRectangle(Canvas, StMsPos, null, out StartPos);
SelImg.anchoredPosition = StartPos;
}
if (isCutting && Input.GetMouseButton(0))
{
RectTransformUtility.ScreenPointToLocalPointInRectangle(Canvas, Input.mousePosition, null, out TempPos);
SelImg.pivot = new Vector2(TempPos.x >= StartPos.x ? 0 : 1, TempPos.y >= StartPos.y ? 0 : 1);
SelImg.sizeDelta = new Vector2(Mathf.Abs(TempPos.x - StartPos.x), Mathf.Abs(TempPos.y - StartPos.y));
}
if (isCutting && isPressed && Input.GetMouseButtonUp(0))
{
isPressed = false;
isCutting = false;
EdMsPos = Input.mousePosition;
CutBtns.SetActive(true);
}
}
Rect CutRect;
private Texture2D Tex;
IEnumerator CutImage()
{
string Name = DateTime.Now.ToString("yyyyMMddHHmmss");
Tex = new Texture2D((int)Mathf.Abs(StMsPos.x - EdMsPos.x), (int)Mathf.Abs(StMsPos.y - EdMsPos.y), TextureFormat.RGB24, true);
CutRect = new Rect(StMsPos.x> EdMsPos.x? EdMsPos.x: StMsPos.x,
StMsPos.y > EdMsPos.y ? EdMsPos.y : StMsPos.y,
Mathf.Abs(EdMsPos.x - StMsPos.x),
Mathf.Abs(EdMsPos.y - StMsPos.y));
yield return new WaitForEndOfFrame();
Tex.ReadPixels(CutRect, 0, 0, true);
Tex.Apply();
yield return Tex;
byte[] bytes = Tex.EncodeToPNG();
string path = Application.dataPath + "/" + Name + ".png";
OpenFileName file = new OpenFileName();
file.structSize = Marshal.SizeOf(file);
file.filter = "文件(*.png)";
file.file = new string(new char[256]);
file.maxFile = file.file.Length;
file.fileTitle = new string(new char[64]);
file.maxFileTitle = file.fileTitle.Length;
file.initialDir = Application.streamingAssetsPath.Replace('/', '\\');//默认路径
file.title = "保存文件";
file.templateName = Name;
file.flags = 0x00080000 | 0x00001000 | 0x00000800 | 0x00000008;
if (SelectFileDialog.GetSaveFileName(file))
{
path = file.file + ".png";
}
File.WriteAllBytes(path, bytes);
}
public void ClickCut() {
CutBtns.SetActive(false);
SelImg.gameObject.SetActive(false);
StartCoroutine(CutImage());
StartCut.SetActive(true);
}
public void ClickCancel()
{
CutBtns.SetActive(false);
SelImg.gameObject.SetActive(false);
StartCut.SetActive(true);
}
public void ClickStartCut() {
isCutting = true;
}
}
アリババクラウドディスク: https://www.aliyundrive.com/s/qCFon9eLtTD
ホット アップデート後にスクリプトを変更しても、プレハブは変更されていません。
using UnityEngine;
using System.Collections;
using System.IO;
using System;
public class CutUI : MonoBehaviour
{
Vector2 StartPos, TempPos; // 画布内位置
Vector3 StMsPos, EdMsPos; // 屏幕内位置
public RectTransform SelImg;
private RectTransform Canvas;
public GameObject CutBtns, StartCut;
bool isCutting = false, isPressed = false;
private void Start()
{
CutBtns.SetActive(false);
SelImg.gameObject.SetActive(false);
Canvas = GameObject.Find("Canvas").GetComponent<RectTransform>();
}
// Update is called once per frame
void Update()
{
if (isCutting && Input.GetMouseButtonDown(0))
{
isPressed = true;
CutBtns.SetActive(false);
SelImg.gameObject.SetActive(true);
StMsPos = Input.mousePosition;
RectTransformUtility.ScreenPointToLocalPointInRectangle(Canvas, StMsPos, null, out StartPos);
SelImg.anchoredPosition = StartPos;
}
if (isCutting && Input.GetMouseButton(0))
{
RectTransformUtility.ScreenPointToLocalPointInRectangle(Canvas, Input.mousePosition, null, out TempPos);
SelImg.pivot = new Vector2(TempPos.x >= StartPos.x ? 0 : 1, TempPos.y >= StartPos.y ? 0 : 1);
SelImg.sizeDelta = new Vector2(Mathf.Abs(TempPos.x - StartPos.x), Mathf.Abs(TempPos.y - StartPos.y));
}
if (isCutting && isPressed && Input.GetMouseButtonUp(0))
{
isPressed = false;
isCutting = false;
EdMsPos = Input.mousePosition;
CutBtns.SetActive(true);
}
}
Rect CutRect;
private Texture2D Tex;
IEnumerator CutImage()
{
yield return new WaitForEndOfFrame();
string Name = DateTime.Now.ToString("yyyyMMddHHmmss");
// 截取选中区域的像素数据
Vector2Int size = new Vector2Int((int)Mathf.Abs(StMsPos.x - EdMsPos.x), (int)Mathf.Abs(StMsPos.y - EdMsPos.y));
Vector2Int position = new Vector2Int(Mathf.RoundToInt(Mathf.Min(StMsPos.x, EdMsPos.x)), Mathf.RoundToInt(Mathf.Min(StMsPos.y, EdMsPos.y)));
Texture2D screenTexture = new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, false);
screenTexture.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0);
screenTexture.Apply();
Color[] pixels = screenTexture.GetPixels(position.x, position.y, size.x, size.y);
// 创建新的Texture2D来保存截图
Tex = new Texture2D(size.x, size.y, TextureFormat.RGB24, false);
Tex.SetPixels(pixels);
Tex.Apply();
// 将Texture2D转换为PNG字节数组
byte[] bytes = Tex.EncodeToPNG();
// 保存截图到文件
string desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
string filePath;
if (Directory.Exists(desktopPath))
{
filePath = Path.Combine(desktopPath, Name + ".png");
}
else
{
string streamingAssetsPath = Application.streamingAssetsPath;
filePath = Path.Combine(streamingAssetsPath, Name + ".png");
}
File.WriteAllBytes(filePath, bytes);
Debug.Log("截图已保存至：" + filePath);
}
public void ClickCut()
{
CutBtns.SetActive(false);
SelImg.gameObject.SetActive(false);
StartCoroutine(CutImage());
StartCut.SetActive(true);
}
public void ClickCancel()
{
CutBtns.SetActive(false);
SelImg.gameObject.SetActive(false);
StartCut.SetActive(true);
}
public void ClickStartCut()
{
isCutting = true;
}
}
必要に応じてスクリプトを置き換えます