From 8b00d67febf133e89f6a0bfabc41feed555dc4a9 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Sat, 12 Jan 2019 21:48:33 +0800
Subject: =?UTF-8?q?*=E5=8E=BB=E6=8E=89=E6=96=87=E4=BB=B6=E5=89=8D=E7=BC=80?=
 =?UTF-8?q?je=5F?=
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---
 src/libjin/game/application.cpp | 82 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 src/libjin/game/application.cpp

(limited to 'src/libjin/game/application.cpp')

diff --git a/src/libjin/game/application.cpp b/src/libjin/game/application.cpp
new file mode 100644
index 0000000..e67231f
--- /dev/null
+++ b/src/libjin/game/application.cpp
@@ -0,0 +1,82 @@
+#include "../core/configuration.h"
+#if defined(jin_game)
+
+#include <iostream>
+
+#include "../time/timer.h"
+#include "../input/event.h"
+#include "../graphics/window.h"
+#include "../graphics/gl.h"
+#include "../math/math.h"
+
+#include "application.h"
+
+using namespace JinEngine::Graphics;
+using namespace JinEngine::Input;
+using namespace JinEngine::Time;
+using namespace JinEngine::Math;
+
+namespace JinEngine
+{
+    namespace Game
+    {
+
+        Application::Application() :_running(true) {};
+
+        /* default game loop */
+        void Application::run()
+        {
+            if (_onLoad != nullptr)
+                _onLoad();
+            Window* wnd = Window::get();
+            const int FPS = wnd ? wnd->getFPS() : 60;
+            const int MS_PER_UPDATE = 1000.0f / FPS;
+            _running = true;
+            Event e;
+            int current = getMilliSecond();
+            int previous = current;
+            int dt = 0;
+            while (_running)
+            {
+                while (JinEngine::Input::pollEvent(&e))
+                {
+                    if (_onEvent != nullptr)
+                        _onEvent(&e);
+                    if (!_running) 
+                        goto quitloop;
+                }
+                previous = current;
+                current = getMilliSecond();
+                dt = current - previous;
+                if (_onUpdate != nullptr) 
+                    _onUpdate(dt);
+                glClear(GL_COLOR_BUFFER_BIT);
+                if (_onDraw != nullptr) 
+                    _onDraw();
+                wnd->present();
+                sleep(16);
+            }
+        quitloop:;
+        }
+
+        bool Application::startSystem(const SettingBase* setting)
+        {
+            if (setting == nullptr)
+                return false; 
+            Application::Setting* s = (Application::Setting*) setting;
+            _onEvent = s->eventHandler;
+            _onUpdate = s->updater;
+            _onDraw = s->drawer;
+            _onLoad = s->loader;
+            return true;
+        }
+
+        void Application::quitSystem()
+        {
+            SDL_Quit();
+        }
+
+    } // namespace Core
+} // namespace JinEngine
+
+#endif // jin_game
\ No newline at end of file
-- 
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