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

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