Renamed core components to have the common prefix Core

[Mograsim.git] / net.mograsim.logic.core / src / net / mograsim / logic / core / components / CoreClock.java

diff --git a/net.mograsim.logic.core/src/net/mograsim/logic/core/components/CoreClock.java b/net.mograsim.logic.core/src/net/mograsim/logic/core/components/CoreClock.java
new file mode 100644 (file)
index 0000000..0cccdfd
--- /dev/null
+++ b/net.mograsim.logic.core/src/net/mograsim/logic/core/components/CoreClock.java
@@ -0,0 +1,91 @@
+package net.mograsim.logic.core.components;
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+
+import net.mograsim.logic.core.LogicObservable;
+import net.mograsim.logic.core.LogicObserver;
+import net.mograsim.logic.core.timeline.Timeline;
+import net.mograsim.logic.core.timeline.TimelineEvent;
+import net.mograsim.logic.core.timeline.TimelineEventHandler;
+import net.mograsim.logic.core.types.Bit;
+import net.mograsim.logic.core.wires.CoreWire;
+import net.mograsim.logic.core.wires.CoreWire.ReadEnd;
+import net.mograsim.logic.core.wires.CoreWire.ReadWriteEnd;
+
+public class CoreClock extends CoreComponent implements TimelineEventHandler, LogicObservable
+{
+       private Collection<LogicObserver> observers;
+       private boolean toggle = false;
+       private ReadWriteEnd out;
+       private int delta;
+
+       /**
+        * 
+        * @param out   {@link CoreWire} the clock's impulses are fed into
+        * @param delta ticks between rising and falling edge
+        */
+       public CoreClock(Timeline timeline, ReadWriteEnd out, int delta)
+       {
+               super(timeline);
+               this.delta = delta;
+               this.out = out;
+               this.observers = new HashSet<>();
+               addToTimeline();
+       }
+
+       @Override
+       public void handle(TimelineEvent e)
+       {
+               addToTimeline();
+               out.feedSignals(toggle ? Bit.ONE : Bit.ZERO);
+               toggle = !toggle;
+               notifyObservers();
+       }
+
+       public ReadWriteEnd getOut()
+       {
+               return out;
+       }
+
+       public boolean isOn()
+       {
+               return !toggle;
+       }
+
+       private void addToTimeline()
+       {
+               timeline.addEvent(this, delta);
+       }
+
+       @Override
+       public List<ReadEnd> getAllInputs()
+       {
+               return List.of();
+       }
+
+       @Override
+       public List<ReadWriteEnd> getAllOutputs()
+       {
+               return List.of(out);
+       }
+
+       @Override
+       public void registerObserver(LogicObserver ob)
+       {
+               observers.add(ob);
+       }
+
+       @Override
+       public void deregisterObserver(LogicObserver ob)
+       {
+               observers.remove(ob);
+       }
+
+       @Override
+       public void notifyObservers()
+       {
+               observers.forEach(ob -> ob.update(this));
+       }
+}