Android Open Source - dice-probabilities Target

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License

The source code is released under:

MIT License

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Java Source Code

package org.kleemann.diceprobabilities;
/*w w w . jav a  2  s.c  om*/
import android.view.View;
import android.widget.Button;

/**
 * <p>
 * A special type of CurrentDicePile that represents the integer target of the
 * roll. Primary difference is the rendering of the value and a different
 * default value.
 */
public class Target implements View.OnClickListener {

  private static final String GREATER_THAN_OR_EQUAL_TO = "\u2265";

  private final int defaultTarget;
  private int count;
  private Button button;
  private View.OnClickListener changed;

  public Target(Button button, View.OnClickListener changed) {
    this.defaultTarget = button.getResources().getInteger(
        R.integer.default_target);
    this.count = defaultTarget;
    this.button = button;
    this.changed = changed;
    button.setOnClickListener(this);
    updateButton();
  }

  private void updateButton() {
    button.setText(GREATER_THAN_OR_EQUAL_TO + count);
  }

  public int getCount() {
    return count;
  }

  public void setCount(int count) {
    assert (count >= 0);
    this.count = count;
    updateButton();
    changed.onClick(button);
  }

  public void add(int count) {
    int n = this.count + count;
    setCount(n < 0 ? 0 : n);
  }

  public void clear() {
    setCount(defaultTarget);
  }

  /**
   * Cycle between 0, 10, 20, 30
   */
  @Override
  public void onClick(View v) {
    int n = (((count + 10) / 10) * 10);
    if (n > 30) {
      n = 0;
    }
    setCount(n);
  }
}

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