Android Open Source - feup-lpoo-android-tower-defense Pool

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License

The source code is released under:

MIT License

Java Source Code

package pt.up.fe.lpoo.framework;
/* w ww .  ja  va  2  s.co m*/
import java.util.ArrayList;
import java.util.List;

/**
 * Information about the framework interface can be found at
 *  http://www.kilobolt.com/day-5-the-android-game-framework-part-i.html
 */
public class Pool<T> {
    public interface PoolObjectFactory<T> {
        public T createObject();
    }

    private final List<T> freeObjects;
    private final PoolObjectFactory<T> factory;
    private final int maxSize;

    public Pool(PoolObjectFactory<T> factory, int maxSize) {
        this.factory = factory;
        this.maxSize = maxSize;
        this.freeObjects = new ArrayList<T>(maxSize);
    }

    public T newObject() {
        T object = null;

        if (freeObjects.size() == 0)
            object = factory.createObject();
        else
            object = freeObjects.remove(freeObjects.size() - 1);

        return object;
    }

    public void free(T object) {
        if (freeObjects.size() < maxSize)
            freeObjects.add(object);
    }
}

Java Source Code List

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