Don't allow a negative ball speed
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919436f997
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aa59033d28
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@ -817,7 +817,8 @@ void keyboard(unsigned char key, int x, int y)
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glutPostRedisplay();
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glutPostRedisplay();
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break;
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break;
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case 'K':
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case 'K':
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ball_speed -= 0.2f;
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if (ball_speed - 0.2f > 0)
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ball_speed -= 0.2f;
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glutPostRedisplay();
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glutPostRedisplay();
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break;
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break;
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case 'f':
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case 'f':
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