fix bug with follow logic
Merge pull request #22 from fusijie/master

add blood label & fixed aimer bug.
Merge pull request #23 from fusijie/master

Fixed blood loss bug.
Merge branch 'master' of https://github.com/Wu-Hao/TankMultiplayer
added sound effect files
added some images
Merge branch 'master' of https://github.com/Wu-Hao/TankMultiplayer

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Add show win or lose