From 1717183f194a143bf17e5065316a7dc1a232f00a Mon Sep 17 00:00:00 2001
From: viatearz <viatearz8056@outlook.com>
Date: Sat, 13 Sep 2025 11:48:04 +0800
Subject: [PATCH] fix: reduce CPU usage by limiting motion update frequency

---
 PlayTools/Controls/PTFakeTouch/NSObject+Swizzle.m | 14 ++++++++++++++
 PlayTools/PlaySettings.swift                      |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/PlayTools/Controls/PTFakeTouch/NSObject+Swizzle.m b/PlayTools/Controls/PTFakeTouch/NSObject+Swizzle.m
index d5e8d1bf..d3f68bf3 100644
--- a/PlayTools/Controls/PTFakeTouch/NSObject+Swizzle.m
+++ b/PlayTools/Controls/PTFakeTouch/NSObject+Swizzle.m
@@ -13,6 +13,7 @@
 #import "PTFakeMetaTouch.h"
 #import <VideoSubscriberAccount/VideoSubscriberAccount.h>
 #import <AVFoundation/AVFoundation.h>
+#import <CoreMotion/CoreMotion.h>
 
 __attribute__((visibility("hidden")))
 @interface PTSwizzleLoader : NSObject
@@ -150,6 +151,15 @@ - (void)hook_requestRecordPermission:(void (^)(BOOL))response {
     }
 }
 
+- (instancetype)hook_CMMotionManager_init {
+    CMMotionManager *motionManager = (CMMotionManager *)[self hook_CMMotionManager_init];
+    // The default update interval is 0, which may lead to excessive CPU usage
+    motionManager.accelerometerUpdateInterval = 0.01;
+    motionManager.deviceMotionUpdateInterval = 0.01;
+    motionManager.gyroUpdateInterval = 0.01;
+    return motionManager;
+}
+
 // Hook for UIUserInterfaceIdiom
 
 // - (long long) hook_userInterfaceIdiom {
@@ -287,6 +297,10 @@ + (void)load {
     if ([[PlaySettings shared] checkMicPermissionSync]) {
         [objc_getClass("AVAudioSession") swizzleInstanceMethod:@selector(requestRecordPermission:) withMethod:@selector(hook_requestRecordPermission:)];
     }
+
+    if ([[PlaySettings shared] limitMotionUpdateFrequency]) {
+        [objc_getClass("CMMotionManager") swizzleInstanceMethod:@selector(init) withMethod:@selector(hook_CMMotionManager_init)];
+    }
 }
 
 @end
diff --git a/PlayTools/PlaySettings.swift b/PlayTools/PlaySettings.swift
index 513bd0d1..5bf1a265 100644
--- a/PlayTools/PlaySettings.swift
+++ b/PlayTools/PlaySettings.swift
@@ -85,6 +85,8 @@ let settings = PlaySettings.shared
     @objc lazy var hideTitleBar = settingsData.hideTitleBar
 
     @objc lazy var checkMicPermissionSync = settingsData.checkMicPermissionSync
+
+    @objc lazy var limitMotionUpdateFrequency = settingsData.limitMotionUpdateFrequency
 }
 
 struct AppSettingsData: Codable {
@@ -111,4 +113,5 @@ struct AppSettingsData: Codable {
     var enableScrollWheel = true
     var hideTitleBar = false
     var checkMicPermissionSync = false
+    var limitMotionUpdateFrequency = false
 }