Added simulation files.

simulation/Simulation.py

@@ -0,0 +1,31 @@
+from abc import ABC, abstractmethod
+
+class Simulation(ABC):
+    @abstractmethod
+    def start(self):
+        "Start the simulated object."
+        pass
+
+    @abstractmethod
+    def tick(self) -> bool:
+        """
+        Simulate one clock tick.
+        Returns:
+            bool: True if the simulation could advance one clock tick, or False if the object is expired.
+        """
+        pass
+
+    @abstractmethod
+    def use(self, *args, **kwargs):
+        """
+        Use the simulated object.
+        Args:
+            args (tuple): A tuple of arguments.
+            kwargs (dict): A dictionary of key-value pairs of arguments.
+        """
+        pass
+
+    @abstractmethod
+    def stop(self):
+        "Stop the simulated object."
+        pass