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#include "flatland.h"
#include <set>
#include <iostream>
#include <SDL2/SDL.h>
#include <ctime>
using namespace std;
#include "flattask.h"
#include "flatsignal.h"
#include "flatwindow.h"
#include "flatexception.h"
#include "exceptions/forcequit.h"
float flatland_dt;
set<FlatObject*> objects;
FlatWindow * window = 0;
SignalChannel * core = 0;
gameloop loop_function;
flat_status status;
float fps;
float fps_pause = 5;
Uint32 status_to_flags(const flat_status& s)
{
Uint32 flags = 0;
if (s.audio)
flags |= SDL_INIT_AUDIO;
if (s.timer)
flags |= SDL_INIT_TIMER;
if (s.video)
flags |= SDL_INIT_VIDEO;
if (s.joystick)
flags |= SDL_INIT_JOYSTICK;
if (s.haptic)
flags |= SDL_INIT_HAPTIC;
if (s.controller)
flags |= SDL_INIT_GAMECONTROLLER;
if (s.events)
flags |= SDL_INIT_EVENTS;
if (s.haptic)
flags |= SDL_INIT_HAPTIC;
if (s.controller)
flags |= SDL_INIT_GAMECONTROLLER;
if (s.events)
flags |= SDL_INIT_EVENTS;
return flags;
}
/* Listen to simple quit calls */
class QuitListener : public FlatListener
{
virtual void callback(FlatObject*, void*) override
{
/* Order to quit */
quit_flatland();
}
public:
QuitListener()
{
addFilter("quit");
core->connect(this);
}
};
int init_flatland(FlatWindow* w, gameloop loop, const flat_status& s, float _fps)
{
cout << "Flatland: Initializing flatland" << endl;
// Init core channel
core = new SignalChannel("core");
QuitListener quitter;
// init variables
cout << "Flatland: Initializing window" << endl;
window = w;
loop_function = loop;
status = s;
fps = _fps;
// init SDL
cout << "Flatland: Initializing SDL" << endl;
Uint32 flags = status_to_flags(s);
if ( SDL_Init(flags | SDL_INIT_NOPARACHUTE) < 0)
{
cout << "Error: SDL_Init failed" << endl;
return -1;
}
// init window
cout << "Flatland: Opening window" << endl;
window->open();
/* Game loop */
status.running = 1;
status.loop = 1;
clock_t delay = 0;
cout << "Flatland: Entering game-loop" << endl;
do
{
do {
flatland_dt = 1.0f / fps + delay / CLOCKS_PER_SEC;
delay = clock();
try {
try {
/* Execute tasks */
task_s::executePreProcess();
} catch (const exception &e) {
cerr << "Flatland: exception thrown while executing pre-process tasks" << endl;
cerr << e.what() << endl;
}
try {
/* Execute loop function */
loop_function(flatland_dt);
} catch (const exception &e) {
cerr << "Flatland: exception thrown while executing loop" << endl;
cerr << e.what() << endl;
}
try {
/* Execute tasks */
task_s::executePostProcess();
} catch (const exception &e) {
cerr << "Flatland: exception thrown while executing post-process tasks" << endl;
cerr << e.what() << endl;
}
} catch (const ForceQuit& f) {
cerr << "Flatland: a force quit call was thrown" << endl;
cerr << "Possible reason: " << f.reason << endl;
quit_flatland();
}
SDL_Delay((Uint32) (1000.0f / fps));
delay -= clock();
} while (status.loop);
SDL_Delay((Uint32)(1000 / fps_pause));
}
while(status.running);
cout << "Flatland: closing window" << endl;
window->close();
cout << "Flatland: destroying core channel" << endl;
delete core;
core = 0;
cout << "Flatland: quitting SDL" << endl;
SDL_Quit();
return status.error;
}
void quit_flatland()
{
status.running = 0;
status.loop = 0;
}
flat_status flatland_status()
{
return status;
}
SignalChannel * getCoreChannel()
{
return core;
}
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