Develop an API that translates commands sent from earth to intrustions that are understood by the rover in the moon.
The rover is given a coordinate once it lands using the arguments(x, y, irection) e.g (4, 2, EAST).
To understand the cordinates, draft a map representation of (4, 2) with the arrow facing east i.e right. Then, follow the command FLFFFRFLB and the coordinates will be (6, 4, NORTH).
NOTE:
F -> Move forward on current heading
B -> Move backwards on current heading
L -> Rotate left by 90 degrees (but don't move)
R -> Rotate right by 90 degrees (but don't move)
Also, negative coordinates are valid because Mars is a globe.
The rover is given a command string containing multiple commands as input and must return the its current coordinates after the command are executed.
F = +1
B = -1
NORTH is positive
EAST is positive
SOUTH is negative
WEST is negative
Just like the graph table.
x = North & South
y = East & West
Therefore:
- 90 degrees left(L) from North is West
- 90 degrees right(R) from North is East
- 90 degrees left(L) from South is East
- 90 degrees right(R) from South is West and vice versa