\b;\button 157; Shielder \image botshld 8 8; Tracked bot designed to protect and defend against all \l;enemy\u object\mother; attacks within a perimeter of 10 to 25 meters. The individual shields of bots and buildings are re-energized through the shielder's defensive actions. This bot is the only way to get through narrow passages adorned with poisonous green mushrooms. A \l;regular power cell\u object\power; allows for a 20-second activity span with a radius of 25 meters, much too short in most cases. A \l;nuclear power cell\u object\atomic; is of course more suited to this bot. The energy consumption is proportional to the radius of the protective sphere. With a radius of 10 meters, the bot can work 2.5 times longer than with the maximum radius of 25 meters. \t;Programming To program the bot's movements, use the following commands : \c;\l;move\u cbot\move;\n;, \c;\l;turn\u cbot\turn;\n;, \c;\l;motor\u cbot\motor;\n;, \c;\l;goto\u cbot\goto;\n;. To program the deployment of the shield, use \c;\l;shield\u cbot\shield;\n;. \t;Object \l;Category\u cbot\category; \c;Shielder\n; \t;See also \l;CBOT Language\u cbot;, \l;Variables\u cbot\type; and \l;Categories\u cbot\category;.