DataWeave programming challenge #2: Rock Paper Scissors game score system
In this post:
This challenge is based on Advent of Code 2022 day 2
Try to solve this challenge on your own to maximize learning. We recommend you refer to the DataWeave documentation only. Try to avoid using Google or asking others so you can learn on your own and become a DataWeave expert!
Input
Consider the following input payload (can be of txt format):
R R
R P
R S
P R
P P
P S
S R
S P
S S
R RExplanation of the problem
Create a DataWeave script to keep your score on a series of Rock Paper Scissors games. The first column is what your opponent chose and the second column is what you chose. Each letter is a representation of the decision made:
R = Rock
P = Paper
S = Scissors
The rules of the game are simple:
Rock defeats Scissors
Paper defeats Rock
Scissors defeat Paper
As per the scoring system, you will have to keep track of whether you won, lost, or if it was a draw. Remember the second column is your choice. Here's how you will be counting the points:
0 points if you lost the round
3 points if the round was a draw
6 points if you won the round
For example,
The first round was R R, which means both your opponent and you chose Rock. This round results in a draw, so 3 points are added.
The second round was R P, which means your opponent chose Rock and you chose Paper. Paper defeats Rock, which means you win this round. 6 points are added.
The third round was R S, which means your opponent chose Rock and you chose Scissors. Rock defeats Scissors, which means you lose this round. 0 points are added.
The final result will be the number of total points you earned in the 10 rounds.
Expected output
In this case, the expected output would be:
30The result for each of the 10 rounds should be:
3
6
0
0
3
6
6
0
3
3