era.mi/src/era/mi/logic/components/Connector.java

   1 package era.mi.logic.components;\r
   2 \r
   3 import java.util.List;\r
   4 \r
   5 import era.mi.logic.Simulation;\r
   6 import era.mi.logic.types.BitVector;\r
   7 import era.mi.logic.wires.Wire.ReadEnd;\r
   8 import era.mi.logic.wires.Wire.ReadWriteEnd;\r
   9 import era.mi.logic.wires.WireObserver;\r
  10 \r
  11 public class Connector implements WireObserver, Component\r
  12 {\r
  13         private boolean connected;\r
  14         private final ReadWriteEnd a;\r
  15         private final ReadWriteEnd b;\r
  16 \r
  17         public Connector(ReadWriteEnd a, ReadWriteEnd b)\r
  18         {\r
  19                 if (a.length() != b.length())\r
  20                         throw new IllegalArgumentException(String.format("WireArray width does not match: %d, %d", a.length(), b.length()));\r
  21                 this.a = a;\r
  22                 this.b = b;\r
  23                 a.addObserver(this);\r
  24                 b.addObserver(this);\r
  25         }\r
  26 \r
  27         public void connect()\r
  28         {\r
  29                 connected = true;\r
  30                 update(a);\r
  31                 update(b);\r
  32         }\r
  33 \r
  34         public void disconnect()\r
  35         {\r
  36                 connected = false;\r
  37                 a.clearSignals();\r
  38                 b.clearSignals();\r
  39         }\r
  40 \r
  41         public void setConnection(boolean connected)\r
  42         {\r
  43                 if (connected)\r
  44                         connect();\r
  45                 else\r
  46                         disconnect();\r
  47         }\r
  48 \r
  49         @Override\r
  50         public void update(ReadEnd initiator, BitVector oldValues)\r
  51         {\r
  52                 if (connected)\r
  53                         Simulation.TIMELINE.addEvent(e -> update(initiator), 1);\r
  54         }\r
  55 \r
  56         private void update(ReadEnd initiator)\r
  57         {\r
  58                 if (initiator == a)\r
  59                         b.feedSignals(a.wireValuesExcludingMe());\r
  60                 else\r
  61                         a.feedSignals(b.wireValuesExcludingMe());\r
  62         }\r
  63 \r
  64         @Override\r
  65         public List<ReadEnd> getAllInputs()\r
  66         {\r
  67                 return List.of(a, b);\r
  68         }\r
  69 \r
  70         @Override\r
  71         public List<ReadWriteEnd> getAllOutputs()\r
  72         {\r
  73                 return List.of(a, b);\r
  74         }\r
  75 }\r