BowlingGame.php
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<?php
/**
* PHPUnit
*
* Copyright (c) 2002-2010, Sebastian Bergmann <sb@sebastian-bergmann.de>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Sebastian Bergmann nor the names of his
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @category Testing
* @package PHPUnit
* @author Sebastian Bergmann <sb@sebastian-bergmann.de>
* @copyright 2002-2010 Sebastian Bergmann <sb@sebastian-bergmann.de>
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
* @link http://www.phpunit.de/
* @since File available since Release 3.3.0
*/
class BowlingGame
{
protected $rolls = array();
public function roll($pins)
{
$this->rolls[] = $pins;
}
protected function isSpare($frameIndex)
{
return $this->sumOfPinsInFrame($frameIndex) == 10;
}
protected function isStrike($frameIndex)
{
return $this->rolls[$frameIndex] == 10;
}
protected function sumOfPinsInFrame($frameIndex)
{
return $this->rolls[$frameIndex] +
$this->rolls[$frameIndex + 1];
}
protected function spareBonus($frameIndex)
{
return $this->rolls[$frameIndex + 2];
}
protected function strikeBonus($frameIndex)
{
return $this->rolls[$frameIndex + 1] +
$this->rolls[$frameIndex + 2];
}
public function score()
{
$score = 0;
$frameIndex = 0;
for ($frame = 0; $frame < 10; $frame++) {
if ($this->isStrike($frameIndex)) {
$score += 10 + $this->strikeBonus($frameIndex);
$frameIndex++;
}
else if ($this->isSpare($frameIndex)) {
$score += 10 + $this->spareBonus($frameIndex);
$frameIndex += 2;
}
else {
$score += $this->sumOfPinsInFrame($frameIndex);
$frameIndex += 2;
}
}
return $score;
}
}