Asura. An Environment for Assessment of Programming Challenges using Gamification

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1 Asura An Environment for Assessment of Programming Challenges using Gamification José Paulo Leal CLIS 2018 José Carlos Paiva 16th April 2018 Beijing, China

2 Outline Motivation Proposal Architecture Enki Game Builder Game Viewer Game Evaluator Tournament Manager

3 Motivation Why we choose to build this environment? Mastering programming requires practice. Time spent during lab classes is not enough. (1) Lack of practice (2) Lack of understanding (3) Loss of motivation Goto (1) Need to break this loop.

4 Motivation Why students should program in their free time? Free time is to enjoy! Programming can be a real headache for newbies. Nothing fun! It is also a monotonous activity. Playing games is the other side of the coin.

5 Proposal 01 Create game-based exercises instead of traditional programming exercises Students code Software Agents (SAs) to play the game. Evaluation is based on the performance of SAs against other SAs.

6 Proposal Our example: a target shooting game Challenge: Shoot 5 times from an unknown initial position (x, y) at a fixed distance from the target and make the largest summed score Variables: shoot angles (vertical and horizontal)

7 Proposal 02 Bring graphical game-like feedback to Asura challenges Automatic judges typically output a message only saying Accepted or Wrong Answer. Feedback of games is very attractive and informative to players. Approach: display the behavior of the SA during the game in a movie.

8 Proposal Back to our example, this would be the graphical aspect:

9 Proposal 03 Define a goal for an Asura game Goals are crucial for games. Asura games are not an exception. Once the time to submit SAs ends, educators are able to organize tournaments, similar to those found on traditional games and sports. The ultimate goal is to beat up all the other SAs.

10 Proposal Back to our example, we can define a tournament for this game One knockout stage Two players per match Best score wins (5 shots)

11 Proposal 04 Facilitate the creation of Asura games Target difficulty of creating an ICPC-like problem, and try to reach it.

12 Proposal

13 Architecture

14 Enki Web-based learning environment combining: content presentation automatic assessment sequencing of educational resources gamification features Avoids the need to install complex tools Prepares students to development tools such as IDEs

15 Game Builder Java framework for building Asura challenges provides means to easily build the game movie defines a game state interface contains an abstract game manager that can be extended for specific games CLI tool allows to generate and package Asura challenges with a single command

16 Game Viewer - Tournament Mode Interactive viewer view the full path of any player during the tournament view a specific match navigate through stages see final rankings

17 Game Viewer - Movie Mode A movie is a set of frames Each frame has items messages status of the SA An item contains a reference to a sprite spatial information of the sprite Transformations details

18 Game Evaluator Mooshak s automated judge classifies a submission according to a set of inputs and their expected outputs analysis has two parts: static and dynamic each submission is evaluated in a black-box in Game Evaluator extends Mooshak evaluation static analysis is kept dynamic analysis is leveraged by the game manager multiple submissions running in the same environment manager writes state updates to the submission s standard input manager reads player action from the submission s standard output Submission 1 out... in Read Stream out Submission N Manager Write Stream

19 Tournament Manager Embedded into Mooshak s Administration GUI choose participants define the structure type of matches number of stages structure of stages Each stage will generate a set of rounds an inner ranking Each round contains a set of matches

20 Thank you! José Paulo Leal José Carlos Paiva

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