fix wrong undefined variable
fix wrong undefined variable

imnotoxy/testtt,HyogaGlacier/shell-of-turtle-io,huytd/agar.io-clone,mbelshe/agar.io-clone,mbelshe/agar.io-clone,HyogaGlacier/shell-of-turtle-io,tyler3133/agar.ioCLONE,abodym/OurMineIo,smarty6788/LMS-Agar3,Nomad398/sosiufdoisudf,heiyukidev/agar.io-clone,abodym/OurMineIo,kalucky0/pubble,smarty6788/LMS-Agar3,tyler3133/agar.ioCLONE,kalucky0/pubble,Faris90/lagario,Flammrock/agar-flam,heiyukidev/agar.io-clone,imnotoxy/testtt,abodym/OurMineIo,heiyukidev/agar.io-clone,Faris90/lagario,Flammrock/agar-flam,Nomad398/sosiufdoisudf,huytd/agar.io-clone