102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
// IAEngine: 2D Game Engine by IA
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// Copyright (C) 2025 IASoft (PVT) LTD (oss@iasoft.dev)
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#include <IAEngine/Engine.hpp>
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#include <Time.hpp>
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namespace ia::iae
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{
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FLOAT32 g_globalTimeScale = 1.0f;
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FLOAT32 g_deltaTime{1 / 60.0f};
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INT64 g_lastFrameTick{0};
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std::chrono::time_point<std::chrono::high_resolution_clock> g_startMS;
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VOID Time::Initialize()
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{
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g_startMS = std::chrono::high_resolution_clock::now();
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}
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VOID Time::Terminate()
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{
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}
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VOID Time::NextFrame()
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{
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const auto t = GetTickCount();
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g_deltaTime = t - g_lastFrameTick;
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g_lastFrameTick = t;
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}
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INT64 Time::GetTickCount()
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{
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return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::high_resolution_clock::now() -
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g_startMS)
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.count();
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}
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INT64 Time::GetCurrentSecond()
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{
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return std::chrono::duration_cast<std::chrono::seconds>(std::chrono::high_resolution_clock::now() - g_startMS)
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.count();
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}
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FLOAT32 Time::GetFrameDeltaTime()
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{
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return g_deltaTime * g_globalTimeScale;
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}
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INT64 Time::GetUnixSecond()
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{
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return std::chrono::duration_cast<std::chrono::seconds>(
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std::chrono::system_clock::now().time_since_epoch()).count();
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}
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INT64 Time::GetUnixMillisecond()
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{
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return std::chrono::duration_cast<std::chrono::milliseconds>(
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std::chrono::system_clock::now().time_since_epoch()).count();
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}
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} // namespace ia::iae
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namespace ia::iae
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{
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VOID Engine::SetTimeScale(IN FLOAT32 scale)
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{
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g_globalTimeScale = scale;
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}
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INT64 Engine::GetTickCount()
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{
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return Time::GetTickCount();
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}
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INT64 Engine::GetUnixSecond()
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{
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return Time::GetUnixSecond();
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}
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INT64 Engine::GetUnixMillisecond()
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{
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return Time::GetUnixMillisecond();
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}
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FLOAT32 Engine::GetFrameDeltaTime()
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{
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return Time::GetFrameDeltaTime();
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}
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} // namespace ia::iae
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