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/**
* Event module
*/
#include "common/l_common.h"
#include "common/je_lua.h"
#include "libjin/jin.h"
using namespace JinEngine;
using namespace JinEngine::Input;
namespace JinEngine
{
namespace Lua
{
/**
* Load event poll, return a iterator(a table).
*/
LUA_IMPLEMENT int l_event_poll(lua_State *L)
{
/* table to store events */
luax_newtable(L);
static Event e;
int i = 1;
poll:
while (pollEvent(&e))
{
/**
* TODO: ڴСıʱҪtransform
*
*/
luax_newtable(L);
switch (e.type)
{
case EventType::QUIT:
luax_setfieldstring(L, "type", "Quit");
break;
case EventType::KEY_DOWN:
case EventType::KEY_UP:
luax_setfieldstring(L, "type", e.type == EventType::KEY_DOWN ? "KeyDown" : "KeyUp");
luax_setfieldstring(L, "key", getKeyName(e.key.keysym.sym));
break;
case EventType::MOUSE_MOTION:
luax_setfieldstring(L, "type", "MouseMotion");
luax_setfieldnumber(L, "x", e.motion.x);
luax_setfieldnumber(L, "y", e.motion.y);
break;
case EventType::MOUSE_BUTTON_DOWN:
case EventType::MOUSE_BUTTON_UP:
luax_setfieldstring(L, "type", e.type == EventType::MOUSE_BUTTON_DOWN ? "MouseButtonDown" : "MouseButtonUp");
luax_setfieldstring(L, "button", getButtonName(e.button.button));
luax_setfieldnumber(L, "x", e.button.x);
luax_setfieldnumber(L, "y", e.button.y);
break;
case EventType::MOUSE_WHEEL:
luax_setfieldstring(L, "type", "Wheel");
if(e.wheel.x == -1)
luax_setfieldstring(L, "x", "Left");
else if(e.wheel.x == 1)
luax_setfieldstring(L, "x", "Right");
else
luax_setfieldstring(L, "x", "None");
if (e.wheel.y == -1)
luax_setfieldstring(L, "y", "Near");
else if (e.wheel.y == 1)
luax_setfieldstring(L, "y", "Far");
else
luax_setfieldstring(L, "y", "None");
break;
case EventType::JOYBUTTONDOWN:
case EventType::JOYBUTTONUP:
luax_setfieldstring(L, "type", e.type == EventType::JOYBUTTONDOWN ? "JoyButtonDown" : "JoyButtonUp");
luax_setfieldinteger(L, "which", e.jbutton.which);
luax_setfieldstring(L, "button", Input::getJoyButtonName(e.jbutton.button));
break;
case EventType::JOYAXISMOTION:
luax_setfieldstring(L, "type", "JoyAxisMotion");
luax_setfieldinteger(L, "which", e.jaxis.which);
luax_setfieldfstring(L, "axis", Input::getJoyAxisName(e.jaxis.axis));
break;
case EventType::JOYBALLMOTION:
case EventType::JOYHATMOTION:
case EventType::JOYDEVICEADDED:
case EventType::JOYDEVICEREMOVED:
luax_setfieldfstring(L, "type", e.type == EventType::JOYDEVICEADDED ? "JoyDeviceAdded" : "JoyDeviceRemoved");
luax_setfieldinteger(L, "which", e.jdevice.which);
break;
//https://stackoverflow.com/questions/50022316/what-is-sdl-joystick-and-what-is-sdl-gamecontroller-what-are-the-relationships
case EventType::CONTROLLERBUTTONDOWN:
case EventType::CONTROLLERBUTTONUP:
case EventType::CONTROLLERAXISMOTION:
default:
// Ignore oter events and pop up the event table.
luax_pop(L, 1);
goto poll;
break;
}
luax_rawseti(L, -2, i++);
}
return 1;
}
/**
* load event module
*/
LUA_EXPORT int luaopen_event(lua_State* L)
{
luaL_Reg methods[] = {
{ "poll", l_event_poll },
{ 0, 0 }
};
luax_newlib(L, methods);
return 1;
}
} // namespace Lua
} // namespace JinEngine
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