Add a joystick base shape as rect#7

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iascchen wants to merge 3 commits intojustasm:masterfrom

iascchen:master

Commits on Feb 14, 2016

add base shape of rect, and value return [ [-1,1], [-1, 1] ]
Hao Chen
committed
add base shape of rect, and value return [ [-1,1], [-1, 1] ]
Hao Chen
committed
add base shape of rect, and value return [ [-1,1], [-1, 1] ]
Hao Chen
committed