Android Open Source - DivisionByZero Updatable Collection

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From Project

Back to project page DivisionByZero.

License

The source code is released under:

Apache License

Java Source Code

package com.ggstudios.divisionbyzero;
//from ww w.j a v  a 2 s.  c o m
import java.util.ArrayList;
import java.util.Collections;

public class UpdatableCollection implements Updatable{
  private ArrayList<Updatable> items = new ArrayList<Updatable>();
  private int len = 0;

  public void add(Updatable d) {
    if(items.size() == len) {
      items.add(d);
    } else {
      items.set(len, d);
    }

    len++;
  }

  public void remove(int index) {
    Collections.swap(items, index, len - 1);

    len--;
  }

  public void remove(Updatable item) {
    int index = items.indexOf(item);

    if(index == -1 || index >= len)
      return;
    Collections.swap(items, index, len - 1);

    len--;
  }

  public void clear() {
    len = 0;
  }

  public int find(Updatable item) {
    for(int i = len - 1; i >= 0; i--)
      if (items.get(i).equals(item))
        return i;
    return -1;
  }

  @Override
  public boolean update(float dt) {
    for(int i = len - 1; i >= 0; i--) {
      if( !items.get(i).update(dt) ) {
        remove(i);
      }
    }

    return true;
  }

  public int size() {
    return len;
  }
}

Java Source Code List

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