From 329dceb3261f027ee8f7b83a5e6bd790d62c4f56 Mon Sep 17 00:00:00 2001
From: Alan-CRL <92425617+Alan-CRL@users.noreply.github.com>
Date: Wed, 31 Jan 2024 09:57:44 +0800
Subject: [PATCH] =?UTF-8?q?DelayFPS=20=E5=87=BD=E6=95=B0=E4=BA=8E=2024/01/?=
 =?UTF-8?q?31=20=E6=9B=B4=E6=96=B0?=
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- DelayFPS 于 24/01/31 更新
- 此次更新对这个函数进行改动，其目的是解决多线程使用时引发的问题，并提高精度
- 同时将 HpSleep(delay); 改为 std::this_thread::sleep_for(std::chrono::milliseconds(delay)); 有助于进一步提高精度
- this_thread::sleep_for 函数存在问题，据 https://developercommunity.visualstudio.com/t/Modifying-the-system-time-to-the-past-s/10476559 中，一对此函数进行修复，请确认 MSVC 版本以避免错误
- 使用模板
```cpp
static hiex::tDelayFPS recond;
hiex::DelayFPS(recond, 24);
```
- 或是在循环上一级定义 hiex::tDelayFPS recond; 需要确保每个线程中有自己的 tDelayFPS，多个线程不能使用同一个 tDelayFPS
---
 HiEasyX/HiEasyX/HiFPS.cpp | 32 +++++++++++++---------
 HiEasyX/HiEasyX/HiFPS.h   | 56 +++++++++++++++++++++++++++------------
 2 files changed, 58 insertions(+), 30 deletions(-)

diff --git a/HiEasyX/HiEasyX/HiFPS.cpp b/HiEasyX/HiEasyX/HiFPS.cpp
index f85614c..bba1e55 100644
--- a/HiEasyX/HiEasyX/HiFPS.cpp
+++ b/HiEasyX/HiEasyX/HiFPS.cpp
@@ -1,14 +1,20 @@
 #include "HiFPS.h"
 
-#include "HiFunc.h"
-
-#include <time.h>
-
 namespace HiEasyX
 {
-	clock_t tRecord = 0;
-	
-	void DelayFPS(int fps, bool wait_long)
+	tDelayFPS::tDelayFPS() : tRecord(0) {}
+
+	// DelayFPS �� 24/01/31 ����
+	// �˴θ��¶�����������иĶ�����Ŀ���ǽ�����߳�ʹ��ʱ���������⣬����߾���
+	// ͬʱ�� HpSleep(delay); ��Ϊ std::this_thread::sleep_for(std::chrono::milliseconds(delay)); �����ڽ�һ����߾���
+	// this_thread::sleep_for �����������⣬�� https://developercommunity.visualstudio.com/t/Modifying-the-system-time-to-the-past-s/10476559 �У�һ�Դ˺��������޸�����ȷ�� MSVC �汾�Ա������
+	// ʹ��ģ��
+	/*
+		static hiex::tDelayFPS recond;
+		hiex::DelayFPS(recond, 24);
+	*/
+	// ������ѭ����һ������ hiex::tDelayFPS recond; ��Ҫȷ��ÿ���߳������Լ��� tDelayFPS������̲߳���ʹ��ͬһ�� tDelayFPS
+	void DelayFPS(tDelayFPS& Record, int fps, bool wait_long)
 	{
 		if (wait_long)
 		{
@@ -17,15 +23,15 @@ namespace HiEasyX
 		}
 
 		clock_t tNow = clock();
-		if (tRecord)
+		if (Record.tRecord)
 		{
-			int delay = 1000 / fps - (tNow - tRecord);
+			int delay = 1000 / fps - (tNow - Record.tRecord);
 			if (delay > 0)
 			{
-				HpSleep(delay);
+				std::this_thread::sleep_for(std::chrono::milliseconds(delay));
+				//HpSleep(delay);
 			}
 		}
-		tRecord = clock();
+		Record.tRecord = clock();
 	}
-};
-
+};
\ No newline at end of file
diff --git a/HiEasyX/HiEasyX/HiFPS.h b/HiEasyX/HiEasyX/HiFPS.h
index 1cd2b85..c1d0134 100644
--- a/HiEasyX/HiEasyX/HiFPS.h
+++ b/HiEasyX/HiEasyX/HiFPS.h
@@ -1,17 +1,39 @@
-/**
- * @file	HiFPS.h
- * @brief	HiEasyX ���֡��ģ��
- * @author	huidong
-*/
-
-#pragma once
-
-namespace HiEasyX
-{
-	/**
-	 * @brief ����Ŀ��֡����ʱ
-	 * @param[in] fps			֡��
-	 * @param[in] wait_long		�Ƿ񳤵ȴ�������ռ�ã�
-	*/
-	void DelayFPS(int fps, bool wait_long = false);
-};
+/**
+ * @file	HiFPS.h
+ * @brief	HiEasyX ���֡��ģ��
+ * @author	huidong
+*/
+
+#pragma once
+
+#include "HiFunc.h"
+
+#include <ctime>
+#include <thread>
+
+namespace HiEasyX
+{
+	struct tDelayFPS
+	{
+		clock_t tRecord;
+		tDelayFPS();  // �������캯�������彫�� HiFPS.cpp �н���
+	};
+
+	/**
+	 * @brief ����Ŀ��֡����ʱ
+	 * @param[in] fps			֡��
+	 * @param[in] wait_long		�Ƿ񳤵ȴ�������ռ�ã�
+	*/
+
+	// DelayFPS �� 24/01/31 ����
+	// �˴θ��¶�����������иĶ�����Ŀ���ǽ�����߳�ʹ��ʱ���������⣬����߾���
+	// ͬʱ�� HpSleep(delay); ��Ϊ std::this_thread::sleep_for(std::chrono::milliseconds(delay)); �����ڽ�һ����߾���
+	// this_thread::sleep_for �����������⣬�� https://developercommunity.visualstudio.com/t/Modifying-the-system-time-to-the-past-s/10476559 �У�һ�Դ˺��������޸�����ȷ�� MSVC �汾�Ա������
+	// ʹ��ģ��
+	/*
+		static hiex::tDelayFPS recond;
+		hiex::DelayFPS(recond, 24);
+	*/
+	// ������ѭ����һ������ hiex::tDelayFPS recond; ��Ҫȷ��ÿ���߳������Լ��� tDelayFPS������̲߳���ʹ��ͬһ�� tDelayFPS
+	void DelayFPS(tDelayFPS& Record, int fps, bool wait_long = false);
+};