import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Phaser;
import java.util.concurrent.atomic.AtomicInteger;
abstract class Entity implements Runnable {
public abstract void run();
}
class WorkerA extends Entity implements Runnable {
AtomicInteger idSource = new AtomicInteger();
public void run() {
try {
Thread.sleep(1000);
} catch (InterruptedException ex) {
ex.printStackTrace();
}
}
@Override
public String toString() {
int id = idSource.incrementAndGet();
return "# " + id;
}
}
class WorkB extends Entity implements Runnable {
AtomicInteger idSource = new AtomicInteger();
public void run() {
try {
Thread.sleep(400);
} catch (InterruptedException ex) {
ex.printStackTrace();
}
}
@Override
public String toString() {
int id = idSource.incrementAndGet();
return "ID:" + id;
}
}
public class Test {
private static void gameEngine(List<Entity> entities) {
final Phaser phaser = new Phaser(1);
for (final Entity entity : entities) {
final String member = entity.toString();
System.out.println(member);
phaser.register();
new Thread() {
@Override
public void run() {
System.out.println(member);
phaser.arriveAndAwaitAdvance();
entity.run();
}
}.start();
}
phaser.arriveAndDeregister();
}
public static void main(String[] args) {
List<Entity> entities = new ArrayList<>();
entities = new ArrayList<>();
entities.add(new WorkerA());
entities.add(new WorkB());
gameEngine(entities);
}
}
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