\b;Exercise Convert some \l;titanium ore\u object\titanore; to \l;titanium cubes\u object\titan;, then drop 2 titanium cubes on the pads whose coordinates are: \c; x=10, y=-60 x=10, y=-65 \n; \image derrick 8 8; The \l;derrick\u object\derrick; extracts titanium ore from the subsoil; you just have to pick it up. \image convert 8 8; The \l;converter\u object\convert; converts titanium ore to titanium cubes. Just drop the titanium ore on the platform, move backward, and wait until it has been converted. \b;General principle Repeat two times : o Wait until there is some titanium ore. o Go to the titanium ore. o Pick it up. o Go to the converter. o Drop the titanium ore. o Move back 2.5 meters. o Wait until there is a titanium cube. o Pick up the titanium cube. o Go to the platform. o Drop the titanium cube. \b;Useful instructions \c;\l;for\u cbot\for;\n; to repeat some instructions \c;\l;do - while\u cbot\do;\n; to repeat some instructions \c;\l;radar\u cbot\radar;\n; to look for different objects \c;\l;goto\u cbot\goto;\n; to move the bot \c;\l;grab\u cbot\grab;\n; to grab an object \c;\l;drop\u cbot\drop;\n; to drop an object \t;See also \l;Programming\u cbot;, \l;types\u cbot\type; and \l;categories\u cbot\category;.