getter method for camera

Signed-off-by: Alexander Skjolden <alex@plastboks.net>
removed debugging information form Snake class

Signed-off-by: Alexander Skjolden <alex@plastboks.net>
cleanup old unused code

Signed-off-by: Alexander Skjolden <alex@plastboks.net>
pass renderer object to the inputhandler object

Signed-off-by: Alexander Skjolden <alex@plastboks.net>
use gamerenderers cam object to calculate touch x,y coordinates

Signed-off-by: Alexander Skjolden <alex@plastboks.net>