Changes related to ray-collision, and luprex global variable stuff

luprex/cpp/core/world-core.cpp

@@ -5,7 +5,6 @@
 #include "traceback.hpp"
 #include "pprint.hpp"
 #include "util.hpp"
-#include "serializelua.hpp"
 
 #include <iostream>
 
@@ -1101,31 +1100,10 @@ std::ostream *World::lthread_print_stream() const {
     }
 }
 
-void World::set_global(LuaCoreStack &LS0, const eng::string &gvar, LuaSlot value) {
-    lua_State *L = LS0.state();
-    LuaVar globaldb, copy;
-    LuaExtStack LS(L, globaldb, copy);
-
-    // Serialize then deserialize the data, to produce a copy.
-    StreamBuffer sb;
-    eng::string error = serialize_lua(LS, value, &sb);
-    if (!error.empty()) {
-        luaL_error(L, "%s", error.c_str());
-        return;
-    }
-    eng::string serialized(sb.view());
-    error = deserialize_lua(LS, copy, &sb);
-    if (!error.empty()) {
-        luaL_error(L, "%s", error.c_str());
-        return;
-    }
-
-    // Store the copy in the globalDB.
-    LS.rawget(globaldb, LuaRegistry, "globaldb");
-    LS.rawset(globaldb, gvar, copy);
-
+void World::set_global(const eng::string &gvar, std::string_view value) {
     // Store the serialized blob.
-    gvname_to_serial_[gvar] = serialized;
+    //
+    gvname_to_serial_[gvar] = value;
 
     // Implement the tracking so that we can rapidly determine which global
     // variables need to be difference transmitted.
@@ -1147,6 +1125,15 @@ void World::set_global(LuaCoreStack &LS0, const eng::string &gvar, LuaSlot value
     }
 }
 
+const eng::string &World::get_global(const eng::string &gvar) {
+    static eng::string empty;
+    auto iter = gvname_to_serial_.find(gvar);
+    if (iter == gvname_to_serial_.end()) {
+        return empty;
+    } else {
+        return iter->second;
+    }
+}
 
 void World::serialize(StreamBuffer *sb) {
     assert(stack_is_clear());