Sha256: 5b73b138cec311691a09a0a6b8c7cf53b198813a695e9cf94f1188841a582dd9
Contents?: true
Size: 1.96 KB
Versions: 25
Compression:
Stored size: 1.96 KB
Contents
export class InvalidInputError extends Error {
constructor(message) {
super();
this.message = message || 'Invalid Input';
}
}
class Robot {
constructor() {
this.coordinates = [0, 0];
this.bearing = 'north';
}
at(xcoord, ycoord) {
this.coordinates = [xcoord, ycoord];
}
orient(direction) {
const validDirections = ['north', 'south', 'east', 'west'];
if (!validDirections.includes(direction)) {
throw new InvalidInputError('Invalid Robot Bearing');
}
this.bearing = direction;
return `The robot is pointed ${direction}`;
}
advance() {
if (this.bearing === 'north') {
this.coordinates[1] += 1;
} else if (this.bearing === 'south') {
this.coordinates[1] -= 1;
} else if (this.bearing === 'east') {
this.coordinates[0] += 1;
} else if (this.bearing === 'west') {
this.coordinates[0] -= 1;
}
}
turnLeft() {
if (this.bearing === 'north') {
this.orient('west');
} else if (this.bearing === 'south') {
this.orient('east');
} else if (this.bearing === 'east') {
this.orient('north');
} else if (this.bearing === 'west') {
this.orient('south');
}
}
turnRight() {
if (this.bearing === 'north') {
this.orient('east');
} else if (this.bearing === 'south') {
this.orient('west');
} else if (this.bearing === 'east') {
this.orient('south');
} else if (this.bearing === 'west') {
this.orient('north');
}
}
instructions(s) {
return [...s].map((character) => {
if (character === 'L') {
return 'turnLeft';
} else if (character === 'R') {
return 'turnRight';
} else if (character === 'A') {
return 'advance';
}
});
}
place(args) {
this.coordinates = [args.x, args.y];
this.bearing = args.direction;
}
evaluate(s) {
this.instructions(s).forEach((instruction) => {
this[instruction]();
});
}
}
export default Robot;
Version data entries
25 entries across 25 versions & 1 rubygems