net.mograsim.logic.core/src/net/mograsim/logic/core/components/ManualSwitch.java

   1 package net.mograsim.logic.core.components;
   2
   3 import java.util.List;
   4
   5 import net.mograsim.logic.core.timeline.Timeline;
   6 import net.mograsim.logic.core.types.Bit;
   7 import net.mograsim.logic.core.wires.Wire.ReadEnd;
   8 import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;
   9
  10 /**
  11  * This class models a simple on/off (ONE/ZERO) switch for user interaction.
  12  *
  13  * @author Christian Femers
  14  *
  15  */
  16 public class ManualSwitch extends Component
  17 {
  18         private ReadWriteEnd output;
  19         private boolean isOn;
  20
  21         public ManualSwitch(Timeline timeline, ReadWriteEnd output)
  22         {
  23                 super(timeline);
  24                 if (output.length() != 1)
  25                         throw new IllegalArgumentException("Switch output can be only a single wire");
  26                 this.output = output;
  27         }
  28
  29         public void switchOn()
  30         {
  31                 setState(true);
  32         }
  33
  34         public void switchOff()
  35         {
  36                 setState(false);
  37         }
  38
  39         public void toggle()
  40         {
  41                 setState(!isOn);
  42         }
  43
  44         public void setState(boolean isOn)
  45         {
  46                 if (this.isOn == isOn)
  47                         return;
  48                 this.isOn = isOn;
  49                 output.feedSignals(getValue());
  50         }
  51
  52         public boolean isOn()
  53         {
  54                 return isOn;
  55         }
  56
  57         public Bit getValue()
  58         {
  59                 return isOn ? Bit.ONE : Bit.ZERO;
  60         }
  61
  62         @Override
  63         public List<ReadEnd> getAllInputs()
  64         {
  65                 return List.of();
  66         }
  67
  68         @Override
  69         public List<ReadWriteEnd> getAllOutputs()
  70         {
  71                 return List.of(output);
  72         }
  73
  74 }