Lots of work on look-at widgets

luprex/cpp/core/world-core.cpp

@@ -417,7 +417,7 @@ eng::string World::probe_lua_expr(int64_t actor_id, std::string_view lua) {
     return result;
 }
 
-void World::probe_lua_call(int64_t place_id, int64_t actor_id, std::string_view datapack, StreamBuffer *retvals) {
+void World::probe_lua_call(int64_t actor_id, int64_t place_id, std::string_view datapack, StreamBuffer *retvals) {
     assert(stack_is_clear());
     lua_State *L = state();
 

luprex/cpp/core/world.hpp

@@ -249,7 +249,7 @@ public:
     // Print statements are discarded.  The lua function may return a vector
     // of values.  If so, the values are packed into a StreamBuffer.
     //
-    void probe_lua_call(int64_t place_id, int64_t actor_id, std::string_view datapack, StreamBuffer *retvals);
+    void probe_lua_call(int64_t actor_id, int64_t place_id, std::string_view datapack, StreamBuffer *retvals);
 
     // Invoke an Invocation object.
     //

luprex/lua/login.lua

@@ -18,11 +18,17 @@ function engio.move(action, xyz, facing)
     tangible.animate(actor, nil, {action=action, xyz=xyz, facing=facing})
 end
 
-function engio.printhi(a1, a2, a3, a4, a5)
-    pprint("Hi there", a1, a2, a3, a4, a5)
+function cube.getlookat()
+    return { "Hotkeys", "X", "I Am a Cube" }
 end
 
-function engio.retmany()
-    return 7, vec(8,9,10), "Yo", "Banana", 13.2, vec(2,3,4), "Hi"
+function sphere.getlookat()
+    return { "Hotkeys", "X", "I Am a Sphere" }
+end
+
+function engio.getlookat()
+    local place = tangible.place()
+    local class = tangible.getclass(place)
+    return class.getlookat()
 end