Les fonctions

Pour éviter de répéter plusieurs fois une même opération, il est possible d'utiliser des boucles. Complétez l'algorithme suivant pour placer le véhicule devant la tour.

{"options": {"toolbox": [{"type": "base_simplerepeattimes", "ntimes": 4.0}, {"type": "road_forward"}, {"type": "road_turnleft"}, {"type": "road_turnright"}], "blocks": {"base_start": {"inputs": [{"fields": [{"text": "Au d\u00e9marrage", "type": "text"}], "align": "left", "type": "dummy_input"}], "on_event": "start", "creatable": false, "tooltip": "D\u00e9marrage de l'algorithme", "colour": 65, "next_statement": true}, "road_turnright": {"inputs": [{"fields": [{"text": "Tourner \u00e0 droite \u21b7", "type": "text"}], "align": "left", "type": "dummy_input"}], "colour": 160, "next_statement": true, "tooltip": "Tourner \u00e0 droite", "previous_statement": true}, "road_forward": {"inputs": [{"fields": [{"text": "Avancer de 1 case", "type": "text"}], "align": "left", "type": "dummy_input"}], "colour": 160, "next_statement": true, "tooltip": "Avancer d'une case tout droit", "previous_statement": true}, "road_turnleft": {"inputs": [{"fields": [{"text": "Tourner \u00e0 gauche \u21b6", "type": "text"}], "align": "left", "type": "dummy_input"}], "colour": 160, "next_statement": true, "tooltip": "Tourner \u00e0 gauche", "previous_statement": true}, "base_simplerepeattimes": {"colour": 120, "tooltip": "Execute une suite d'instructions un certain nombre de fois", "previous_statement": true, "compound": {"blocks": {"base_repeattimes": {"inputs": [{"fields": [{"text": "R\u00e9p\u00e9ter", "type": "text"}], "align": "left", "type": "value_input", "name": "ntimes", "check": "Number"}, {"fields": [{"text": "fois", "type": "text"}], "align": "left", "type": "dummy_input"}, {"fields": [], "align": "left", "type": "statement_input", "name": "code_repeat", "check": null}], "colour": 120, "tooltip": "Execute une suite d'instructions un certain nombre de fois", "previous_statement": true, "inline": true, "next_statement": true}, "base_numberinput": {"inputs": [{"fields": [{"default": 0.0, "type": "number_input", "name": "value"}], "align": "left", "type": "dummy_input"}], "colour": 260, "tooltip": "Fourni un nombre", "output": "Number"}}, "ast": {"type": "base_repeattimes", "ntimes": {"alias": {"value": "ntimes"}, "type": "base_numberinput"}}}, "inline": true, "next_statement": true}}}, "ast": [[{"editable": false, "type": "base_start", "deletable": false}, {"code_repeat": [{"type": "road_forward"}], "type": "base_simplerepeattimes", "ntimes": 4.0}, {"type": "road_turnright"}]]}