Started creating scripting library/namespace and added sol2 for interfacing

1 files changed, 62 insertions, 0 deletions

diff --git a/lib/sol2/examples/source/static_variables.cpp b/lib/sol2/examples/source/static_variables.cpp
new file mode 100644
index 0000000..686eb0d
--- /dev/null
+++ b/lib/sol2/examples/source/static_variables.cpp
@@ -0,0 +1,62 @@
+#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+#include <iostream>
+#include "assert.hpp"
+
+struct test {
+	static int muh_variable;
+};
+int test::muh_variable = 25;
+
+
+int main() {
+	std::cout << "=== static_variables ===" << std::endl;
+
+	sol::state lua;
+	lua.open_libraries();
+	lua.new_usertype<test>("test",
+		"direct", sol::var(2),
+		"global", sol::var(test::muh_variable),
+		"ref_global", sol::var(std::ref(test::muh_variable))
+	);
+
+	int direct_value = lua["test"]["direct"];
+	// direct_value == 2
+	c_assert(direct_value == 2);
+	std::cout << "direct_value: " << direct_value << std::endl;
+
+	int global = lua["test"]["global"];
+	int global2 = lua["test"]["ref_global"];
+	// global == 25
+	// global2 == 25
+	c_assert(global == 25);
+	c_assert(global2 == 25);
+
+	std::cout << "First round of values --" << std::endl;
+	std::cout << global << std::endl;
+	std::cout << global2 << std::endl;
+
+	test::muh_variable = 542;
+
+	global = lua["test"]["global"];
+	// global == 25
+	// global is its own memory: was passed by value
+
+	global2 = lua["test"]["ref_global"];
+	// global2 == 542
+	// global2 was passed through std::ref
+	// global2 holds a reference to muh_variable
+	// if muh_variable goes out of scope or is deleted
+	// problems could arise, so be careful!
+
+	c_assert(global == 25);
+	c_assert(global2 == 542);
+
+	std::cout << "Second round of values --" << std::endl;
+	std::cout << "global : " << global << std::endl;
+	std::cout << "global2: " << global2 << std::endl;
+	std::cout << std::endl;
+
+	return 0;
+}