modify laser.
modify angle in attack.
fix game pause issue.
Merge pull request #28 from RaoZiJian/myMaster

fix game pause issue.
fix bug
Merge branch 'master' of https://github.com/yuye-liu/cocostudioSampleGmae
Merge branch 'master' of https://github.com/yuye-liu/cocostudioSampleGmae into myWork