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PODetecting when the ball hits the paddle in pong?
 

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    <p>I have been reading through this <a href="http://openbookproject.net/thinkcs/python/english2e/ch08.html#project-pong-py" rel="nofollow">tutorial</a>. I am in a chapter where you can build a pong game. However I am having trouble trying to make a function that can detect when the ball hits the paddle?</p> <p>It says I should do this:</p> <blockquote> <p>Make a boolean function <code>hit(bx, by, r, px, py, h)</code> that returns <code>True</code> when the vertical coordinate of the ball (<code>by</code>) is between the bottom and top of the paddle, and the horizontal location of the ball (<code>bx</code>) is less than or equal to the radius (<code>r</code>) away from the front of the paddle.</p> </blockquote> <p>I have tried this so far:</p> <pre><code>def hit(bx, by, r, px, py, h): if by &gt; py and by &lt;= h: if bx &lt;= r: return True else: return False </code></pre> <p>...</p> <pre><code># If this returns True then change the direction of the ball (dx). if hit(ball_x, ball_y, radius, paddle_x, paddle_y, height): dx *= -1 </code></pre> <p>I'm having trouble translating the quoted paragraph into code. What am I doing wrong?</p> <p><strong>Note:</strong> The expected output of this function would be:</p> <pre><code>hit(760, 100, 10, 780, 100, 100) False hit(770, 100, 10, 780, 100, 100) True hit(770, 200, 10, 780, 100, 100) True hit(770, 210, 10, 780, 100, 100) False </code></pre>
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