mirror of
https://github.com/love2d/love.git
synced 2026-08-16 00:02:12 +02:00
Alex Szpakowski
102 lines
2.5 KiB
C++
102 lines
2.5 KiB
C++
/**
|
|
* Copyright (c) 2006-2015 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"
|
|
#include "common/int.h"
|
|
|
|
// LOVE
|
|
#include "wrap_Touch.h"
|
|
|
|
#include "sdl/Touch.h"
|
|
|
|
namespace love
|
|
{
|
|
namespace touch
|
|
{
|
|
|
|
#define instance() (Module::getInstance<Touch>(Module::M_TOUCH))
|
|
|
|
int w_getIDs(lua_State *L)
|
|
{
|
|
std::vector<int64> ids = instance()->getIDs();
|
|
|
|
lua_createtable(L, (int) ids.size(), 0);
|
|
|
|
for (size_t i = 0; i < ids.size(); i++)
|
|
{
|
|
// This is a bit hackish and we lose the higher 32 bits of the id on
|
|
// 32-bit systems, but SDL only ever gives id's that at most use as many
|
|
// bits as can fit in a pointer (for now.)
|
|
// We use lightuserdata instead of a lua_Number (double) because doubles
|
|
// can't represent all possible id values on 64-bit systems.
|
|
lua_pushlightuserdata(L, (void *) (intptr_t) ids[i]);
|
|
lua_rawseti(L, -2, (int) i + 1);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int w_getPosition(lua_State *L)
|
|
{
|
|
if (!lua_islightuserdata(L, 1))
|
|
return luax_typerror(L, 1, "touch id");
|
|
|
|
int64 id = (int64) (intptr_t) lua_touserdata(L, 1);
|
|
|
|
double x = 0;
|
|
double y = 0;
|
|
luax_catchexcept(L, [&]() { instance()->getPosition(id, x, y); });
|
|
|
|
lua_pushnumber(L, x);
|
|
lua_pushnumber(L, y);
|
|
|
|
return 2;
|
|
}
|
|
|
|
static const luaL_Reg functions[] =
|
|
{
|
|
{ "getIDs", w_getIDs },
|
|
{ "getPosition", w_getPosition },
|
|
{ 0, 0 }
|
|
};
|
|
|
|
extern "C" int luaopen_love_touch(lua_State *L)
|
|
{
|
|
Touch *instance = instance();
|
|
if (instance == nullptr)
|
|
{
|
|
luax_catchexcept(L, [&](){ instance = new love::touch::sdl::Touch(); });
|
|
}
|
|
else
|
|
instance->retain();
|
|
|
|
WrappedModule w;
|
|
w.module = instance;
|
|
w.name = "touch";
|
|
w.type = MODULE_ID;
|
|
w.functions = functions;
|
|
w.types = nullptr;
|
|
|
|
return luax_register_module(L, w);
|
|
}
|
|
|
|
} // touch
|
|
} // love
|