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migrate ALMOST everything from source tree into client

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riall
2023-08-05 05:00:55 -04:00
committed by GitHub
parent 458a857569
commit ebe5f127e6
189 changed files with 0 additions and 0 deletions
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85
source/client/common/Timer.cpp Normal file
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/********************************************************************
Minecraft: Pocket Edition - Decompilation Project
Copyright (C) 2023 iProgramInCpp
The following code is licensed under the BSD 1 clause license.
SPDX-License-Identifier: BSD-1-Clause
********************************************************************/
#include "Timer.hpp"
#include "Utils.hpp"
#if !defined(_WIN32) && defined(USE_ACCURATE_TIMER)
#error "Implement getAccurateTimeMs() for your platform!"
#endif
#if defined(_WIN32) && defined(USE_ACCURATE_TIMER)
static LARGE_INTEGER s_StartTime;
static bool s_Initted;
double getAccurateTimeMs()
{
// Thanks to @Kleadron for helping out with this!
if (!s_Initted)
{
s_Initted = true;
QueryPerformanceCounter(&s_StartTime);
}
LARGE_INTEGER frequency;
QueryPerformanceFrequency(&frequency);
LARGE_INTEGER currentCounter;
QueryPerformanceCounter(&currentCounter);
LONGLONG diff = currentCounter.QuadPart - s_StartTime.QuadPart;
return double(diff) / double(frequency.QuadPart) * 1000.0;
}
#endif
void Timer::advanceTime()
{
#ifdef USE_ACCURATE_TIMER
double timeMs = getAccurateTimeMs();
#else
int timeMs = getTimeMs();
#endif
if (timeMs - field_4 <= 1000)
{
if (timeMs - field_4 < 0)
{
field_4 = field_8 = timeMs;
}
}
else
{
#ifdef USE_ACCURATE_TIMER
double diff1 = timeMs - field_4;
double diff2 = timeMs - field_8;
#else
int diff1 = timeMs - field_4;
int diff2 = timeMs - field_8;
#endif
field_C += ((float(diff1) / float(diff2)) - field_C) * 0.2f;
}
float diff = float(timeMs) / 1000.0f - field_0;
field_0 = float(timeMs) / 1000.0f;
float x1 = diff * field_C;
if (x1 > 1) x1 = 1;
if (x1 < 0) x1 = 0;
float x2 = field_20 + x1 * field_1C * field_10;
field_14 = int(x2);
field_20 = x2 - field_14;
field_18 = x2 - field_14;
if (field_14 > 10)
field_14 = 10;
}
Timer::Timer()
{
field_4 = field_8 = getTimeMs();
}