selove / src / modules / timer / wrap_Timer.cpp

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/**
* Copyright (c) 2006-2012 LOVE Development Team
*
* This software is provided 'as-is', without any express or implied
* warranty.  In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
*    claim that you wrote the original software. If you use this software
*    in a product, an acknowledgment in the product documentation would be
*    appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
*    misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
**/

#include <common/config.h>

// LOVE
#include "wrap_Timer.h"

#include "sdl/Timer.h"

namespace love
{
namespace timer
{
	static Timer * instance = 0;

	int w_step(lua_State *)
	{
		instance->step();
		return 0;
	}

	int w_getDelta(lua_State * L)
	{
		lua_pushnumber(L, instance->getDelta());
		return 1;
	}

	int w_getFPS(lua_State * L)
	{
		lua_pushnumber(L, instance->getFPS());
		return 1;
	}

	int w_sleep(lua_State * L)
	{
		instance->sleep((float) luaL_checknumber(L, 1));
		return 0;
	}

	int w_getTime(lua_State * L)
	{
		lua_pushnumber(L, instance->getTime());
		return 1;
	}

	int w_getMicroTime(lua_State * L)
	{
		lua_pushnumber(L, instance->getMicroTime());
		return 1;
	}

	// List of functions to wrap.
	static const luaL_Reg functions[] = {
		{ "step", w_step },
		{ "getDelta", w_getDelta },
		{ "getFPS", w_getFPS },
		{ "sleep", w_sleep },
		{ "getTime", w_getTime },
		{ "getMicroTime", w_getMicroTime },
		{ 0, 0 }
	};


	extern "C" int luaopen_love_timer(lua_State * L)
	{
		if (instance == 0)
		{
			try
			{
				instance = new love::timer::sdl::Timer();

			}
			catch (Exception & e)
			{
				return luaL_error(L, e.what());
			}
		}
		else
			instance->retain();

		WrappedModule w;
		w.module = instance;
		w.name = "timer";
		w.flags = MODULE_T;
		w.functions = functions;
		w.types = 0;

		return luax_register_module(L, w);
	}

} // timer
} // love
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