Timer.java

package com.hypixel.hytale.server.npc.util;

import com.hypixel.hytale.common.thread.ticking.Tickable;
import com.hypixel.hytale.math.random.RandomExtra;
import java.util.function.Supplier;

public class Timer implements Tickable {
   private double value = 0.0;
   private double minRestartValue;
   private double maxValue;
   private double rate;
   private boolean repeating;
   private TimerState state;
   private boolean initialised;

   public Timer() {
      this.state = Timer.TimerState.STOPPED;
   }

   public void setRate(double rate) {
      this.rate = rate;
   }

   public void setMinRestartValue(double minRestartValue) {
      this.minRestartValue = minRestartValue;
   }

   public void setMaxValue(double maxValue) {
      this.maxValue = maxValue;
   }

   public void setValue(double v) {
      this.value = Math.min(v, this.maxValue);
   }

   public void setRepeating(boolean repeating) {
      this.repeating = repeating;
   }

   public double getValue() {
      return this.value;
   }

   public boolean isInitialised() {
      return this.initialised;
   }

   public void tick(float dt) {
      if (this.state == Timer.TimerState.RUNNING) {
         this.value -= (double)dt * this.rate;
         if (!(this.value > 0.0)) {
            if (this.repeating) {
               double offset = this.value;
               this.restart();
               this.value -= offset;
            } else {
               this.state = Timer.TimerState.STOPPED;
               this.value = 0.0;
            }
         }
      }
   }

   public void start(double minStartValue, double maxStartValue, double minRestartValue, double maxValue, double rate, boolean repeating) {
      this.value = RandomExtra.randomRange(minStartValue, maxStartValue);
      this.minRestartValue = minRestartValue;
      this.maxValue = maxValue;
      this.rate = rate;
      this.repeating = repeating;
      this.state = Timer.TimerState.RUNNING;
      this.initialised = true;
   }

   public void resume() {
      if (this.isPaused()) {
         this.state = Timer.TimerState.RUNNING;
      }

   }

   public void pause() {
      if (this.isRunning()) {
         this.state = Timer.TimerState.PAUSED;
      }

   }

   public void addValue(double v) {
      this.value = Math.min(this.value + v, this.maxValue);
   }

   public void stop() {
      this.state = Timer.TimerState.STOPPED;
   }

   public void restart() {
      this.value = this.pickNextTimerValue();
      this.state = Timer.TimerState.RUNNING;
   }

   public boolean isInState(TimerState s) {
      return s == Timer.TimerState.ANY || this.state == s;
   }

   public boolean isPaused() {
      return this.state == Timer.TimerState.PAUSED;
   }

   public boolean isRunning() {
      return this.state == Timer.TimerState.RUNNING;
   }

   public boolean isStopped() {
      return this.state == Timer.TimerState.STOPPED;
   }

   private double pickNextTimerValue() {
      return RandomExtra.randomRange(this.minRestartValue, this.maxValue);
   }

   public static enum TimerAction implements Supplier<String> {
      START("Start"),
      STOP("Stop"),
      PAUSE("Pause"),
      CONTINUE("Continue"),
      RESTART("Restart"),
      MODIFY("Modify");

      private final String asText;

      private TimerAction(String text) {
         this.asText = text;
      }

      public String asText() {
         return this.asText;
      }

      public String get() {
         return this.asText;
      }
   }

   public static enum TimerState implements Supplier<String> {
      RUNNING("Running"),
      PAUSED("Paused"),
      STOPPED("Stopped"),
      ANY("Any");

      private final String asText;

      private TimerState(String text) {
         this.asText = text;
      }

      public String asText() {
         return this.asText;
      }

      public String get() {
         return this.asText;
      }
   }
}