added /tick command

luprex/core/cpp/world.hpp

@@ -66,8 +66,9 @@ public:
 
     // Print Buffer
     //
-    // In non-actors, this is a null pointer.  Stores the console
-    // output for this actor until it can be probed by the client.
+    // Stores the console output for this actor until it can be
+    // probed by the client. Most tangibles have empty printbuffers,
+    // which are stored as just a null pointer internally.
     //
     PrintBuffer print_buffer_;
     
@@ -124,9 +125,9 @@ public:
     
     // Make a tangible.
     //
-    // If the ID is zero, allocates an ID using the thread's ID allocator. If
-    // pushdb is true, pushes the tangible's database onto the lua stack.
-    // Otherwise, leaves the lua stack untouched.
+    // You must provide a valid previously-unused ID.  If pushdb is true, pushes
+    // the tangible's database onto the lua stack. Otherwise, leaves the lua
+    // stack untouched.
     //
     Tangible *tangible_make(lua_State *L, int64_t id, const std::string &plane, bool pushdb);
 
@@ -220,7 +221,7 @@ public:
     
     // Run any threads which according to the scheduler queue are ready.
     //
-    void run_scheduled_threads(int64_t clk);
+    void run_scheduled_threads();
 
     // Check that the main thread has nothing on the stack
     //
@@ -271,6 +272,10 @@ private:
     // Invoke the flush-prints operation.
     //
     void invoke_flush_prints(int64_t actor_id, int64_t place_id, const std::string &action, const InvocationData &data);
+
+    // Invoke the tick operation.
+    //
+    void invoke_tick(int64_t actor_id, int64_t place_id, const std::string &action, const InvocationData &data);
     
 public:
     ////////////////////////////////////////////////////////////////////////////
@@ -453,6 +458,9 @@ private:
     //
     std::unordered_map<int64_t, UniqueTangible> tangibles_;
 
+    // Current time.
+    int64_t clock_;
+
     // Thread schedule: must include every thread, except
     // for the one currently-executing thread.
     //