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/**
* Event module
*/
#include <SDl2/SDL.h>
#include "lua/luax.h"
#include "libjin/jin.h"
using namespace jin::input;
namespace jin
{
namespace lua
{
static inline const char* buttonstr(int id) {
switch (id) {
case 1: return "left";
case 2: return "middle";
case 3: return "right";
case 4: return "wheelup";
case 5: return "wheeldown";
default: return "?";
}
}
static inline const char* wheelstr(int dir)
{
}
/**
* Load event poll, return a iterator(a table).
*/
static int l_event_poll(lua_State *L)
{
// table to store events
luax_newtable(L);
SDL_Event e;
int i = 1;
poll:
while (SDL_PollEvent(&e))
{
// each event is a table
luax_newtable(L);
switch (e.type)
{
case SDL_QUIT:
luax_setfield_string(L, "type", "quit");
break;
case SDL_KEYDOWN:
luax_setfield_string(L, "type", "keydown");
luax_setfield_string(L, "key", SDL_GetKeyName(e.key.keysym.sym));
break;
case SDL_KEYUP:
luax_setfield_string(L, "type", "keyup");
luax_setfield_string(L, "key", SDL_GetKeyName(e.key.keysym.sym));
break;
case SDL_MOUSEMOTION:
luax_setfield_string(L, "type", "mousemotion");
luax_setfield_number(L, "x", e.motion.x);
luax_setfield_number(L, "y", e.motion.y);
break;
case SDL_MOUSEBUTTONDOWN:
luax_setfield_string(L, "type", "mousebuttondown");
luax_setfield_string(L, "button", buttonstr(e.button.button));
luax_setfield_number(L, "x", e.button.x);
luax_setfield_number(L, "y", e.button.y);
break;
case SDL_MOUSEBUTTONUP:
luax_setfield_string(L, "type", "mousebuttonup");
luax_setfield_string(L, "button", buttonstr(e.button.button));
luax_setfield_number(L, "x", e.button.x);
luax_setfield_number(L, "y", e.button.y);
break;
case SDL_MOUSEWHEEL:
luax_setfield_string(L, "type", "wheel");
if(e.wheel.x == -1)
luax_setfield_string(L, "x", "left");
else if(e.wheel.x == 1)
luax_setfield_string(L, "x", "right");
else
luax_setfield_string(L, "x", "none");
if (e.wheel.y == -1)
luax_setfield_string(L, "y", "near");
else if (e.wheel.y == 1)
luax_setfield_string(L, "y", "far");
else
luax_setfield_string(L, "y", "none");
break;
default:
/* ignore other events */
luax_pop(L, 1); // pop table out
goto poll;
break;
}
luax_rawseti(L, -2, i++);
}
return 1;
}
static const luaL_Reg f[] = {
{"poll", l_event_poll},
{0 ,0 }
};
/**
* load event module
*/
int luaopen_event(lua_State* L)
{
luax_newlib(L, f);
return 1;
}
}
}
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