Started creating scripting library/namespace and added sol2 for interfacing

1 files changed, 64 insertions, 0 deletions

diff --git a/lib/sol2/examples/source/containers.cpp b/lib/sol2/examples/source/containers.cpp
new file mode 100644
index 0000000..01bf420
--- /dev/null
+++ b/lib/sol2/examples/source/containers.cpp
@@ -0,0 +1,64 @@
+#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+#include <vector>
+#include <iostream>
+
+int main(int, char**) {
+	std::cout << "=== containers ===" << std::endl;
+
+	sol::state lua;
+	lua.open_libraries();
+
+	lua.script(R"(
+function f (x)
+	print("container has:")
+	for k=1,#x do
+		v = x[k]
+		print("\t", k, v)
+	end
+	print()
+end
+	)");
+
+	// Have the function we 
+	// just defined in Lua
+	sol::function f = lua["f"];
+
+	// Set a global variable called 
+	// "arr" to be a vector of 5 lements
+	lua["arr"] = std::vector<int>{ 2, 4, 6, 8, 10 };
+
+	// Call it, see 5 elements
+	// printed out
+	f(lua["arr"]);
+
+	// Mess with it in C++
+	// Containers are stored as userdata, unless you
+	// use `sol::as_table()` and `sol::as_table_t`.
+	std::vector<int>& reference_to_arr = lua["arr"];
+	reference_to_arr.push_back(12);
+
+	// Call it, see *6* elements
+	// printed out
+	f(lua["arr"]);
+
+	lua.script(R"(
+arr:add(28)
+	)");
+
+	// Call it, see *7* elements
+	// printed out
+	f(lua["arr"]);
+
+	lua.script(R"(
+arr:clear()
+	)");
+
+	// Now it's empty
+	f(lua["arr"]);
+	
+	std::cout << std::endl;
+
+	return 0;
+}
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