Made Connector an Component and more useful

diff --git a/era.mi/src/era/mi/logic/components/Connector.java b/era.mi/src/era/mi/logic/components/Connector.java
new file mode 100644 (file)
index 0000000..17c9f3c
--- /dev/null
+++ b/era.mi/src/era/mi/logic/components/Connector.java
@@ -0,0 +1,79 @@
+package era.mi.logic.components;
+
+import java.util.List;
+
+import era.mi.logic.Bit;
+import era.mi.logic.Simulation;
+import era.mi.logic.wires.WireArray;
+import era.mi.logic.wires.WireArray.WireArrayEnd;
+import era.mi.logic.wires.WireArrayObserver;
+
+public class Connector implements WireArrayObserver, Component
+{
+       private boolean connected;
+       private final WireArray a;
+       private final WireArray b;
+       private final WireArrayEnd aI;
+       private final WireArrayEnd bI;
+
+       public Connector(WireArray a, WireArray b)
+       {
+               if (a.length != b.length)
+                       throw new IllegalArgumentException(String.format("WireArray width does not match: %d, %d", a.length, b.length));
+               this.a = a;
+               this.b = b;
+               a.addObserver(this);
+               b.addObserver(this);
+               aI = a.createInput();
+               bI = b.createInput();
+       }
+
+       public void connect()
+       {
+               connected = true;
+               update(a);
+               update(b);
+       }
+
+       public void disconnect()
+       {
+               connected = false;
+               aI.clearSignals();
+               bI.clearSignals();
+       }
+
+       public void setConnection(boolean connected)
+       {
+               if (connected)
+                       connect();
+               else
+                       disconnect();
+       }
+
+       @Override
+       public void update(WireArray initiator, Bit[] oldValues)
+       {
+               if (connected)
+                       Simulation.TIMELINE.addEvent(e -> update(initiator), 1);
+       }
+
+       private void update(WireArray initiator)
+       {
+               if (initiator == a)
+                       bI.feedSignals(aI.wireValuesExcludingMe());
+               else
+                       aI.feedSignals(bI.wireValuesExcludingMe());
+       }
+
+       @Override
+       public List<WireArray> getAllInputs()
+       {
+               return List.of(a, b);
+       }
+
+       @Override
+       public List<WireArray> getAllOutputs()
+       {
+               return List.of(a, b);
+       }
+}