Merged logic into master

[Mograsim.git] / era.mi / src / era / mi / logic / components / Connector.java

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..89fb96e
--- /dev/null
+++ b/era.mi/src/era/mi/logic/components/Connector.java
@@ -0,0 +1,75 @@
+package era.mi.logic.components;
+
+import java.util.List;
+
+import era.mi.logic.Simulation;
+import era.mi.logic.types.BitVector;
+import era.mi.logic.wires.Wire;
+import era.mi.logic.wires.Wire.WireEnd;
+import era.mi.logic.wires.WireObserver;
+
+public class Connector implements WireObserver, Component
+{
+       private boolean connected;
+       private final WireEnd a;
+       private final WireEnd b;
+
+       public Connector(WireEnd a, WireEnd 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);
+       }
+
+       public void connect()
+       {
+               connected = true;
+               update(a.getWire());
+               update(b.getWire());
+       }
+
+       public void disconnect()
+       {
+               connected = false;
+               a.clearSignals();
+               b.clearSignals();
+       }
+
+       public void setConnection(boolean connected)
+       {
+               if (connected)
+                       connect();
+               else
+                       disconnect();
+       }
+
+       @Override
+       public void update(Wire initiator, BitVector oldValues)
+       {
+               if (connected)
+                       Simulation.TIMELINE.addEvent(e -> update(initiator), 1);
+       }
+
+       private void update(Wire initiator)
+       {
+               if (initiator == a.getWire())
+                       b.feedSignals(a.wireValuesExcludingMe());
+               else
+                       a.feedSignals(b.wireValuesExcludingMe());
+       }
+
+       @Override
+       public List<WireEnd> getAllInputs()
+       {
+               return List.of(a, b);
+       }
+
+       @Override
+       public List<WireEnd> getAllOutputs()
+       {
+               return List.of(a, b);
+       }
+}