Basic lua implementation.

1 files changed, 61 insertions, 0 deletions

diff --git a/scripting.cpp b/scripting.cpp
new file mode 100644
index 0000000..ed671a2
--- /dev/null
+++ b/scripting.cpp
@@ -0,0 +1,61 @@
+#include "scripting.h"
+
+#include "tolua++.h"
+#include "scripting/tolua_test.h"
+
+#include <boost/algorithm/string/join.hpp>
+
+#include <iostream>
+#include <list>
+
+Lua::Lua() {
+	L = luaL_newstate();
+	luaL_openlibs(L);
+	tolua_test_open(L);
+
+	/* store a pointer to 'this' in the lua state */
+	lua_pushlightuserdata(L, this);
+	lua_setglobal(L, "lua_instance");
+}
+
+Lua::~Lua() {
+	lua_close(L);
+}
+
+void Lua::set_log_func(boost::function<void (const char*)> log_func) {
+	this->log_func = log_func;
+	log_func("Lua::set_log_func() called");
+}
+
+void Lua::print(const char *s) {
+	if(log_func)
+		log_func(s);
+	else
+		std::cout << s << std::endl;
+}
+
+void Lua::dostring(std::string s) {
+	int before = lua_gettop(L);
+	int err = luaL_dostring(L, s.c_str());
+	if(err == 1) {
+		std::string s= lua_tostring(L, -1);
+		lua_pop(L, 1);
+		throw(LuaError(s));
+	} else {
+		int after = lua_gettop(L);
+		std::list<std::string> vals;
+		for(int i = before; i < after; i++) {
+			const char *s = lua_tostring(L, -1);
+			std::string str;
+			if(s == NULL) {
+				str = lua_typename(L, lua_type(L, -1));
+			} else {
+				str = s;
+			}
+			vals.push_front(str);
+			lua_pop(L, 1);
+		}
+
+		this->print(boost::algorithm::join(vals, ",").c_str());
+	}
+}