Add Director, director::CommandList, hk::Goal and fixups

* Simulator and Director are no longer singletons.

hcore/include/director/commandList.h

@@ -0,0 +1,72 @@
+#ifndef DIRECTOR_COMMANDLIST_H
+#define DIRECTOR_COMMANDLIST_H
+
+#include <vector>
+#include <cstdint>
+#include <mentalEntity.h>
+
+namespace director {
+
+/**
+ * @brief Base class for all commands, storing a reference to a mental entity ID.
+ * 
+ * Derived classes can extend this to include additional command-specific
+ * data and behavior.
+ */
+class Command
+{
+public:
+    Command(const MentalEntity::Id menty) : menty(menty) {}
+
+public:
+    const MentalEntity::Id menty;
+};
+
+class CommandList
+{
+public:
+    CommandList() = default;
+
+    /**
+     * @brief Used by Director to point to the currently executing command.
+     * 
+     * director::Director maintains an internal cursor. As it executes commands
+     * from its internal command list, it advances the cursor to the current
+     * command before executing it.
+     */
+    class Cursor
+    {
+    public:
+        Cursor(CommandList& commandList)
+        : commandList(commandList), iter(commandList.commands.begin())
+        {}
+
+        void reset() { iter = commandList.commands.begin(); }
+        bool hasNext() const { return iter != commandList.commands.end(); }
+        Cursor next() { return Cursor(commandList, ++iter); }
+
+    private:
+        Cursor(
+            CommandList& commandList,
+            std::vector<Command>::iterator iter)
+        : commandList(commandList), iter(iter)
+        {}
+
+    public:
+        CommandList& commandList;
+        std::vector<Command>::iterator iter;
+    };
+
+    Cursor getCursor() { return Cursor(*this); }
+    void addCommand(const Command& command)
+    {
+        commands.push_back(command);
+    }
+
+public:
+    std::vector<Command> commands;
+};
+
+} // namespace director
+
+#endif // DIRECTOR_COMMANDLIST_H

hcore/include/director/director.h

@@ -0,0 +1,14 @@
+#ifndef DIRECTOR_H
+#define DIRECTOR_H
+
+namespace director {
+
+class Director {
+public:
+    Director() = default;
+    ~Director() = default;
+};
+
+} // namespace director
+
+#endif // DIRECTOR_H