Lua, Sol, the basics

 

Sol : When you need to hit the ground running with Lua and C++, sol is the go-to framework for high-performance binding with an easy to use API.

GitHub - ThePhD/sol2: Sol3 (sol2 v3.0) - a C++ <-> Lua API wrapper with advanced features and top notch performance - is here, a

 

the basics:

Note

The code below and more examples can be found in the examples directory.

 

#define SOL_ALL_SAFETIES_ON 1

#include <sol/sol.hpp>
#include <assert.hpp>

int main() {
	sol::state lua;
	int x = 0;
	lua.set_function("beep", [&x]{ ++x; });
	lua.script("beep()");
	c_assert(x == 1);

	sol::function beep = lua["beep"];
	beep();
	c_assert(x == 2);

	return 0;
}

 

#define SOL_ALL_SAFETIES_ON 1

#include <sol/sol.hpp>
#include <assert.hpp>

struct vars {
	int boop = 0;

	int bop () const {
		return boop + 1;
	}
};

int main() {
	sol::state lua;
	lua.new_usertype<vars>("vars", 
		"boop", &vars::boop,
		"bop", &vars::bop);
	lua.script("beep = vars.new()\n"
		"beep.boop = 1\n"
		"bopvalue = beep:bop()");

	vars& beep = lua["beep"];
	int bopvalue = lua["bopvalue"];

	c_assert(beep.boop == 1);
	c_assert(lua.get<vars>("beep").boop == 1);
	c_assert(beep.bop() == 2);
	c_assert(bopvalue == 2);

	return 0;
}

 

 

ref : https://sol2.readthedocs.io/en/latest/