feat: loading entities (WIP)

src/logic/scripting/lua/libentity.cpp

@@ -37,7 +37,10 @@ static int l_spawn(lua::State* L) {
     if (lua::gettop(L) > 2) {
         args = lua::tovalue(L, 3);
     }
-    level->entities->spawn(scripting::engine->getAssets(), def, pos, args);
+    Transform transform {
+        pos, glm::vec3(1.0f), glm::mat3(1.0f), {}, true
+    };
+    level->entities->spawn(scripting::engine->getAssets(), def, transform, args);
     return 1;
 }
 

src/logic/scripting/scripting.cpp

@@ -276,7 +276,8 @@ void scripting::on_entity_spawn(
     const EntityDef& def, 
     entityid_t eid, 
     const std::vector<std::unique_ptr<UserComponent>>& components,
-    dynamic::Value args
+    dynamic::Value args,
+    dynamic::Map_sptr saved
 ) {
     auto L = lua::get_main_thread();
     lua::requireglobal(L, STDCOMP);
@@ -296,7 +297,15 @@ void scripting::on_entity_spawn(
         lua::pushvalue(L, args);
         lua::setfield(L, "ARGS");
 
-        lua::createtable(L, 0, 0);
+        if (saved == nullptr) {
+            lua::createtable(L, 0, 0);
+        } else {
+            if (auto datamap = saved->map(component->name)) {
+                lua::pushvalue(L, datamap);
+            } else {
+                lua::createtable(L, 0, 0);
+            }
+        }
         lua::setfield(L, "SAVED_DATA");
 
         lua::setfenv(L);

src/logic/scripting/scripting.hpp

@@ -81,7 +81,8 @@ namespace scripting {
         const EntityDef& def,
         entityid_t eid, 
         const std::vector<std::unique_ptr<UserComponent>>& components,
-        dynamic::Value args
+        dynamic::Value args,
+        dynamic::Map_sptr saved
     );
     bool on_entity_despawn(const EntityDef& def, const Entity& entity);
     bool on_entity_grounded(const Entity& entity, float force);