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