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

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