static int tracker_new(lua_State * L) {
const char * body = luaL_checkstring(L, 1);
const char * ip = luaL_checkstring(L, 2);
int port = luaL_optint(L, 3, 3883);
Tracker * u = (Tracker*)lua_newuserdata(L, sizeof(Tracker));
sprintf(u->name, "%s@%s:%d", body, ip, port);
if (u->open(u->name)) {
luaL_getmetatable(L, "vrpn_Tracker_Remote");
lua_setmetatable(L, -2);
// create environment table to hold pos, quat etc.
lua_createtable(L, 0, 3);
lua_pushinteger(L, 0); lua_setfield(L, -2, "sensor");
lua_createtable(L, 3, 0);
lua_pushnumber(L, 0); lua_rawseti(L, -2, 1);
lua_pushnumber(L, 0); lua_rawseti(L, -2, 2);
lua_pushnumber(L, 0); lua_rawseti(L, -2, 3);
lua_setfield(L, -2, "pos");
lua_createtable(L, 4, 0);
lua_pushnumber(L, 0); lua_rawseti(L, -2, 1);
lua_pushnumber(L, 0); lua_rawseti(L, -2, 2);
lua_pushnumber(L, 0); lua_rawseti(L, -2, 3);
lua_pushnumber(L, 1); lua_rawseti(L, -2, 4);
lua_setfield(L, -2, "quat");
lua_setfenv(L, -2);
return 1;
}
return 0;
}
bool configure(ResourceFinder &rf)
{
return tracker.open();
}