Started creating scripting library/namespace and added sol2 for interfacing

1 files changed, 45 insertions, 0 deletions

diff --git a/lib/sol2/examples/source/variadic_args.cpp b/lib/sol2/examples/source/variadic_args.cpp
new file mode 100644
index 0000000..2d9e557
--- /dev/null
+++ b/lib/sol2/examples/source/variadic_args.cpp
@@ -0,0 +1,45 @@
+#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+#include <iostream>
+
+int main() {
+	std::cout << "=== variadic_args ===" << std::endl;
+
+	sol::state lua;
+	lua.open_libraries(sol::lib::base);
+
+	// Function requires 2 arguments
+	// rest can be variadic, but:
+	// va will include everything after "a" argument,
+	// which means "b" will be part of the varaidic_args list too
+	// at position 0
+	lua.set_function("v", [](int a, sol::variadic_args va, int /*b*/) {
+		int r = 0;
+		for (auto v : va) {
+			int value = v; // get argument out (implicit conversion)
+						// can also do int v = v.as<int>();
+						// can also do int v = va.get<int>(i); with index i
+			r += value;
+		}
+		// Only have to add a, b was included from variadic_args and beyond
+		return r + a;
+	});
+
+	lua.script("x = v(25, 25)");
+	lua.script("x2 = v(25, 25, 100, 50, 250, 150)");
+	lua.script("x3 = v(1, 2, 3, 4, 5, 6)");
+	// will error: not enough arguments
+	//lua.script("x4 = v(1)");
+
+	lua.script("assert(x == 50)");
+	lua.script("assert(x2 == 600)");
+	lua.script("assert(x3 == 21)");
+	lua.script("print(x)"); // 50
+	lua.script("print(x2)"); // 600
+	lua.script("print(x3)"); // 21
+
+	std::cout << std::endl;
+
+	return 0;
+}
\ No newline at end of file