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

   1 package era.mi.logic.components;\r
   2 \r
   3 import java.util.List;\r
   4 \r
   5 import era.mi.logic.Bit;\r
   6 import era.mi.logic.Simulation;\r
   7 import era.mi.logic.timeline.TimelineEvent;\r
   8 import era.mi.logic.timeline.TimelineEventHandler;\r
   9 import era.mi.logic.wires.WireArray;\r
  10 import era.mi.logic.wires.WireArray.WireArrayEnd;\r
  11 \r
  12 public class Clock implements TimelineEventHandler, Component\r
  13 {\r
  14         private boolean toggle = false;\r
  15         private WireArrayEnd outI;\r
  16         private int delta;\r
  17 \r
  18         /**\r
  19          * \r
  20          * @param out   {@link WireArray} the clock's impulses are fed into\r
  21          * @param delta ticks between rising and falling edge\r
  22          */\r
  23         public Clock(WireArray out, int delta)\r
  24         {\r
  25                 this.delta = delta;\r
  26                 this.outI = out.createInput();\r
  27                 Simulation.TIMELINE.addEvent(this, delta);\r
  28         }\r
  29 \r
  30         @Override\r
  31         public void handle(TimelineEvent e)\r
  32         {\r
  33                 addToTimeline();\r
  34                 outI.feedSignals(toggle ? Bit.ONE : Bit.ZERO);\r
  35                 toggle = !toggle;\r
  36         }\r
  37 \r
  38         public WireArray getOut()\r
  39         {\r
  40                 return outI.owner;\r
  41         }\r
  42 \r
  43         private void addToTimeline()\r
  44         {\r
  45                 Simulation.TIMELINE.addEvent(this, delta);\r
  46         }\r
  47 \r
  48         @Override\r
  49         public List<WireArray> getAllInputs()\r
  50         {\r
  51                 return List.of();\r
  52         }\r
  53 \r
  54         @Override\r
  55         public List<WireArray> getAllOutputs()\r
  56         {\r
  57                 return List.of(outI.owner);\r
  58         }\r
  59 }\r