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.WireArrayEnd;\r
  13 \r
  14 public class Clock implements TimelineEventHandler, Component\r
  15 {\r
  16         private boolean toggle = false;\r
  17         private WireArrayEnd outI;\r
  18         private int delta;\r
  19 \r
  20         /**\r
  21          * \r
  22          * @param out   {@link WireArray} the clock's impulses are fed into\r
  23          * @param delta ticks between rising and falling edge\r
  24          */\r
  25         public Clock(WireArray out, int delta)\r
  26         {\r
  27                 this.delta = delta;\r
  28                 this.outI = out.createInput();\r
  29                 Simulation.TIMELINE.addEvent(this, 50);\r
  30         }\r
  31 \r
  32         @Override\r
  33         public void handle(TimelineEvent e)\r
  34         {\r
  35                 addToTimeline();\r
  36                 outI.feedSignals(new Bit[] { toggle ? Bit.ONE : Bit.ZERO });\r
  37                 toggle = !toggle;\r
  38         }\r
  39 \r
  40         public WireArray getOut()\r
  41         {\r
  42                 return outI.owner;\r
  43         }\r
  44 \r
  45         private void addToTimeline()\r
  46         {\r
  47                 Simulation.TIMELINE.addEvent(this, delta);\r
  48         }\r
  49 \r
  50         @Override\r
  51         public List<WireArray> getAllInputs()\r
  52         {\r
  53                 return Collections.unmodifiableList(Arrays.asList());\r
  54         }\r
  55 \r
  56         @Override\r
  57         public List<WireArray> getAllOutputs()\r
  58         {\r
  59                 return Collections.unmodifiableList(Arrays.asList(outI.owner));\r
  60         }\r
  61 }\r