vision_site has "walls" as boolean
struct vision_site (and e.g. update_dumb_city() ) has 'walls' defined as boolean. Should be int, as it tells the type of the wall.
Going to push S3_0 version to S2_6 too
struct vision_site (and e.g. update_dumb_city() ) has 'walls' defined as boolean. Should be int, as it tells the type of the wall.