From 09fc46d306ec55a8830dbb78e8304901fd259722 Mon Sep 17 00:00:00 2001
From: zhenyan121 <3367366583@qq.com>
Date: Fri, 26 Jun 2026 22:00:36 +0800
Subject: [PATCH] refactor(gameplay): use steady clock and sleep_until for tick
 loop timing

---
 src/gameplay/client_world.cpp | 14 +++++++-------
 src/gameplay/server_world.cpp | 13 +++++++------
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/src/gameplay/client_world.cpp b/src/gameplay/client_world.cpp
index 8e07b6f..08e3c55 100644
--- a/src/gameplay/client_world.cpp
+++ b/src/gameplay/client_world.cpp
@@ -289,17 +289,17 @@ void ClientWorld::hot_reload() {
 
 void ClientWorld::client_run(std::stop_token stoken) {
     Logger::info("Client Thread Started");
-    while (!stoken.stop_requested()) {
-        auto t1 = system_clock::now();
+    using Clock = std::chrono::steady_clock;
 
+    constexpr auto TICK = std::chrono::milliseconds(DEFAULT_PER_TICK_TIME);
+
+    auto next = Clock::now();
+    while (!stoken.stop_requested()) {
+        next += TICK;
         for (auto& x : m_timers) {
             x.second.update();
         }
-
-        auto t2 = system_clock::now();
-        auto dt = duration_cast<microseconds>(t2 - t1);
-        auto st = std::max(dt, milliseconds(DEFAULT_PER_TICK_TIME) - dt);
-        std::this_thread::sleep_for(st);
+        std::this_thread::sleep_until(next);
     }
 }
 
diff --git a/src/gameplay/server_world.cpp b/src/gameplay/server_world.cpp
index 9b11da0..6845c3b 100644
--- a/src/gameplay/server_world.cpp
+++ b/src/gameplay/server_world.cpp
@@ -299,18 +299,19 @@ void ServerWorld::stop_thread_pool() {
 
 void ServerWorld::serever_run(std::stop_token stoken) {
     Logger::info("Server Thread Started!");
-    while (!stoken.stop_requested()) {
-        auto t1 = system_clock::now();
 
+    using Clock = std::chrono::steady_clock;
+    constexpr auto TICK = std::chrono::milliseconds(DEFAULT_PER_TICK_TIME);
+
+    auto next = Clock::now();
+    while (!stoken.stop_requested()) {
+        next += TICK;
         if (m_tick_running) {
             ++m_game_ticks;
             m_day_tick = (m_day_tick + 1) % DAY_TIME;
         }
         update();
-        auto t2 = system_clock::now();
-        auto dt = duration_cast<microseconds>(t2 - t1);
-        auto st = std::max(dt, milliseconds(m_per_tick_time) - dt);
-        std::this_thread::sleep_for(st);
+        std::this_thread::sleep_until(next);
     }
     Logger::info("Server Thread Stopped!");
 }