102 lines
2.2 KiB
C++
102 lines
2.2 KiB
C++
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/*
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Moonfall Copyright (C) 2008 Alex Yatskov
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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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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "Pch.h"
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#include "Driver.h"
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Driver::Driver() :
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m_lastTick(0),
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m_sdlInitialized(false),
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m_ttfInitialized(false)
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{
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}
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Driver::~Driver()
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{
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Shutdown();
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}
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bool Driver::Initialize (const char* title)
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{
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if (!m_sdlInitialized)
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{
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m_sdlInitialized = SDL_Init(SDL_INIT_EVERYTHING) == 0;
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}
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if (m_sdlInitialized && !m_ttfInitialized)
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{
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m_ttfInitialized = TTF_Init() == 0;
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}
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if (!m_sdlInitialized || !m_ttfInitialized)
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{
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TRACE_ERROR("SDL initialization failed");
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Shutdown();
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return false;
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}
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srand(static_cast<unsigned>(time(NULL)));
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SDL_WM_SetCaption(title, title);
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m_lastTick = SDL_GetTicks() - 1;
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TRACE_INFO("SDL initialized");
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return true;
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}
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void Driver::Shutdown()
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{
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System::Reset();
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if (m_ttfInitialized)
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{
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TTF_Quit();
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m_ttfInitialized = false;
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}
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if (m_sdlInitialized)
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{
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SDL_Quit();
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m_sdlInitialized = false;
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}
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TRACE_INFO("SDL shutdown");
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}
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void Driver::Update()
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{
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if (!m_sdlInitialized || !m_ttfInitialized)
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{
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return;
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}
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const int currentTick = SDL_GetTicks();
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const int tickDelta = MIN(currentTick - m_lastTick, 100);
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m_lastTick = currentTick;
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#if 0
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static int s_count = 0;
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if (++s_count == 50)
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{
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TRACE_INFO(boost::format("%d") % (1000 / tickDelta));
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s_count = 0;
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}
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#endif
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System::UpdateWindow(static_cast<float>(tickDelta) / 1000);
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System::RenderWindow();
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}
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