53 lines
1.1 KiB
C++
53 lines
1.1 KiB
C++
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#define SOL_ALL_SAFETIES_ON 1
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#include <sol/sol.hpp>
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struct my_class {
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int a = 0;
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my_class(int x) : a(x) {
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}
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int func() {
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++a; // increment a by 1
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return a;
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}
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};
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int main() {
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sol::state lua;
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lua.open_libraries(sol::lib::base);
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// Here, we are binding the member function and a class
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// instance: it will call the function on the given class
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// instance
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lua.set_function(
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"my_class_func", &my_class::func, my_class(0));
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// We do not pass a class instance here:
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// the function will need you to pass an instance of
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// "my_class" to it in lua to work, as shown below
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lua.set_function("my_class_func_2", &my_class::func);
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// With a pre-bound instance:
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lua.script(R"(
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first_value = my_class_func()
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second_value = my_class_func()
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assert(first_value == 1)
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assert(second_value == 2)
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)");
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// With no bound instance:
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lua.set("obj", my_class(24));
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// Calls "func" on the class instance
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// referenced by "obj" in Lua
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lua.script(R"(
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third_value = my_class_func_2(obj)
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fourth_value = my_class_func_2(obj)
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assert(third_value == 25)
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assert(fourth_value == 26)
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)");
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return 0;
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}
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