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FIT9131 Assignment B: Australian Rules Football simulation

Introduction

This assignment is due by 11:55pm Friday of Week 12 (Friday18 October). It is worth 35% of the marks for your final assessment in this unit.Heavy penalties will apply for late submission.This is an individual assignment and must be your own work. You must attribute the source of any part of your code which you have not written yourself. Please note the section on plagiarism in this document.

In preparing your program, please note the following:

• You must use the workspace environment in the Ed platform to code all parts of your program. You must not copy and paste large sections of code from somewhere else.

• You must acknowledge all code in your assignment that you have taken from other sources.

• The Java source code for this assignment must be implemented according to the FIT9131 Java Coding Standards.

• Only a text interface is to be used for this program.More marks will be gained for a program that is easy to follow with clear navigation information and error messages.

• In this assessment, you mustnotuse generative artificial intelligence (AI) to generate any materials or content in relation to the assessment task.

Any points needing clarification may be discussed with your tutor in your applied learning class. You should not make any assumptions about the program without consulting your tutor.

Completion of this assignment contributes towards the following FIT9131 learning outcomes:

1. Design and construct Java programs according to standard object-oriented principles

2. Apply and demonstrate debugging processes to Java applications

3. Develop strategies for efficient and effective program testing

4. Document code according to specific programming standards

5. Identify and apply the "object-oriented" concepts of encapsulation, abstraction and polymorphism

6. Explain and apply software engineering principles of maintainability, readability and modularisation

Specification

Overview and background

For this assignment you will write a simulation of an Australian Rules Football game. Australian Rules Football (AFL) is a ball game played between two teams of 18 players on an oval-shaped field. At each end of the field are two tall central goalposts and two shorter outer posts. The aim of the game is for a player to kick the ball between the opponent’s posts. If the ball is kicked between the large goalposts then agoalis scored: if it is kicked between a central and an outer post then abehindis scored. A goal is worth 6 points and a behind is worth 1 point.

Players take positions in different sections of the field. The players near the opponent’s goalposts are calledforwards. The players in the middle of the field are calledmidfielders. The players who defend the goals are calleddefenders. Figure 1 below shows a field with the different positions and the goalposts for the team who are defending the goalposts on the lower right of the diagram. This team will try to kick goals through the goalposts on the opposite side of the ground. The opposition team will defend these goalposts and their forward and defender positions will be reversed.

Figure 1: AFL field showing the positions of one team

An AFL football game is played in four quarters of 20 minutes. The game begins in the centre circle in the middle of the ground. The players in each team try to move the ball towards their opponent's goals by kicking the ball to a teammate closer to the goals. When a player within goal kicking distance (usually a forward player) gains possession of the ball, they can attempt to kick a goal. If a goal is kicked then the team scores 6 points and the ball is returned to the centre of the ground. If a behind is kicked then the team scores one point and one of the defenders in the other team takes possession of the ball and the game continues.

Special Note: Before week 11 there may be a small enhancement to the specification, so good design for your program will be important to allow easy modification to incorporate this change.

The Australian Rules Football game simulation

The Australian Rules Football game you will write will simulate one game of football between two teams, each with 18 players. Each team will have fiveforwards, eightmidfieldersand fivedefenders.In addition, each team has fourreserveplayers who can replace players who become injured. A number of players in each team will bestarplayers who are more skilled at the game..

The simulated game will be played in four 20 minute quarters, with each quarter involving a series of 80 random events where the player with the ball will try to kick the ball to another teammate or through the goalposts to gain points. At times the kick will result in aturnoverwhere a player from the opposite team gains possession of the ball.

After each quarter the current score will be displayed. After the 4th quarter the game result is displayed. The team with the most points wins the game. Note: A goal is worth 6 points and a behind is worth 1 point.

Program design

The core components of your program will be Team, Player and AFLGame classes but a good design will incorporate more classes. The program design will be discussed in your classes.

Program start up

The details of the teams are read from two files: teamA.txt and teamB.txt. These files will have the same format. The first line on the file is the team name. This is followed by 22 lines, with each line giving the details for one player as three comma separated values:

• player name (String) 

• field position (String) -forward,midfielder, defender, reserve

• total goals kicked for the season (int)

From this data two Team objects are created. Each Team object will have team name and a collection of Player objects stored as an ArrayList. Each player object will have a player name, field position, seasons goals as fields. You will likely decide to have other fields in these classes.

The user running the simulation will be invited to nominate the number ofstarplayers in each team. Players in each team will be randomly picked to be a star player. Each team will have from 0 (zero) to 8 star players.

Game Play

The game begins with the first quarter and play starts in the centre circle in the middle of the field. The teams have an equal chance of having first possession of the ball. The first player will be a midfielder, randomly chosen from the midfielders in the team.

The quarter consists of a series of events where the player in possession of the ball player kicks the ball. The outcome of the event is determined by the player's position and star status. The probability of each outcome for a normal (non-star) player is shown in Table 1 and for a star player is shown in Table 2. For example, an ordinary midfielder has a 5% chance of kicking a goal, a 10% chance of kicking a behind, 30% chance of passing to a forward in the same team, 30% pass to another midfield in the same team, 25% turnover to a midfield in the other team.

Table 1: Probability of outcomes for players in each position

Table 2: Probability of outcomes for star players in each position

Actions following each outcome:

If a goal or behind is kicked then the scores for the player and team are updated and the result is displaye

• After a goal the ball is returned to the centre circle. The teams have an equal chance of having possession of the ball and player who takes possession will be a midfielder, randomly chosen from the midfielders in the team.
• After a behind, a defender of the other team takes the ball, and play continues. The defender who takes the ball is randomly chosen from the team's defenders.
• If the ball is passed to another teammate in a specified position, a player in that position is randomly chosen from the team.
• If there is a turnover and the ball passes to an opposition player in a specified position, then a player from the team is randomly chosen.

At each event there is a 2% chance of a player becoming injured and needing to leave the field. When this happens a reserve player is brought onto the field and takes the position of the injured player, and the game continues. If more than four players in a team become injured then the team must forfeit the match. In this case, the match ends and the other team is the winner.

After 80 events the quarter ends and the current scores for each team are displayed. If one, two or three quarters have been played then the next quarter is played.

Occasionally a player will violate the rules of the game and is reported by the umpire. Each player has a 1% chance of being reported during a game. If a player is reported they continue playing

End of the game

If four quarters have been played then the game ends and the final result is determined. The winner is the team with the highest number of points. If both teams have the same number of points then the game is a draw. The following final game statistics are displayed:

• Game result 

• Total goals, behinds, and points for each team

• Name of the player in each team who has the greatest number of kicks.

• Name of the highest goal scorer in each team

• Individual player statistics for each team:

• player name and indication of whether the player is injured and/or reported
• kicks
• goals
• behinds
• percentage of effective disposals calculated as:

number of kicks with a positive outcome (goal, behind, successful pass to a teammate) * 100 /
number of kicks

• List of injured players

• List of reported players

The player information is written to two separate files - teamAUpdated.txt and teamBUpdated.txt.

Program and Class Design

The design of the program will be discussed in your Applied Class in Week 9. It is important that you attend this class.

Important Notes

1. Your program must demonstrate your understanding of the object-oriented concepts and general programming constructs presented in FIT9131. Consider carefully your choice of classes, how they interact and the fields and methods of each class. You must use appropriate data structures to store the various objects in the program. You must make use ofboth Arrays and ArrayListsin your program. Make sure that you discuss your design with your tutor. You must document any additional assumptions you made.

2. You will be required to justify your design and the choice of any data structures used at the interview.

3. Validation of values for fields and local variables should be implemented where appropriate. You should not allow an object of a class to be set to an invalid state (i.e., put some simple validations in your mutator methods).

4. Your program should handle incorrect or invalid input and present the user with relevant error messages. No invalid input should crash the program.

5. Exception handling should be used where appropriate.

Assessment

Assessment for this assignment will be done via aninterviewwith your tutor. The marks will be allocated as follows:

• 10% - Progress of test strategy and code development, as shown via Ed workspace environment. Your tutor will assess your work during your applied session in weeks 10 and 11.5% in week 10 for thePlayerclass and itstest plan(i.e., a list of tests)

• 5% in week 11 for a draft of theclass diagramand two further classes, which must be aFileIOclass and another class which is aclientclass (please see Lesson 8.1.2 for an explanation of client class). Note that the class diagram should show the individual classes and the interactions between the classes but does not need to include the details within the classes.

• 10% - Test strategy for thePlayerclass, the class which holds the details of a Player. For the test strategy you are only required to provide details of tests for the constructors, the toString/display method, and onegetand onesetmethod. Also, for the non-default (parameterised) constructor and thegetandsetmethods just one positive and one negative test are required.

• 10% - Class diagram, Java code quality and object-oriented design quality. This will be assessed on code quality (e.g., compliance with coding standards, including JavaDoc) appropriate design and implementation of classes, fields, constructors, methods, and validation of the object’s state.

• 10% - Program functionality in accordance to the requirements.

• 60% - Oral assessment.

Note that it is not a requirement that you use polymorphism and inheritance concepts in this assignment, but incorporating these concepts will enhance your chances of achieving a high distinction (HD) grade.

A reminder that you must use the workspace environment in the Ed platform (opposite this assignment specification) to code all parts of your program. You must not copy and paste large sections of code from other sources, and you must acknowledgeanycode in your assignment that has been taken from other sources.

Marks will be deducted for untidy/incomplete submissions.

You must submit your work by the submission deadline on the due date (a late penalty of 5% per day, inclusive of weekends, of the possible marks will apply). There will be no extensions - so start working on it early.

All submitted source code must compile. Any submission that does not compile, as submitted, will receive a grade of ‘N’.

Oral assessment

As part of the assessment you will attend an interview following the submission date. At the interview, you will be asked questions about your code. You will asked to explain your code/design, modify your code, and discuss your design decisions and alternatives. Marks will be awarded for your answers (the marker may also delete excessive in-code comments before you are asked to explain that code).

In other words, you will be assessed on your understanding of the code, and not on the actual code itself.

Interview times will be arranged in the applied classes in Week 12 and will take place on campus during the following week.

It is your responsibility to make yourself available for an interview time.Any student who does not attend an interview will not receive a pass grade for the assignment.

Submission Requirements

The assignment must be submitted by 11:55pm Friday of Week 12 (Friday18 October).

The submission requirements for Assignment B are as follows:

• The main class in your programMUSTbe calledAFLGame.javaand it should contain themain()method to start the program.

• Class diagram submitted as a pdf file.

• Test strategy forPlayerclass submitted as a pdf file.

• Submit all your work (coding, class diagram and test strategy) via the Ed platform.

• Re-submissions are allowed (and encouraged) before the submission deadline. Please ensure however that you do not click on the submit buttonafterthe due date. Your final submission will be used for grading purposes, and any submission made after the deadline will incur a late penalty.

• A signed Assignment Cover Sheet. [Note: You are required to download the Assignment Coversheet, sign the document and upload the pdf file in the Ed platform (you may drag and drop to the Toggle Pane)]

Marks will be deducted for any of these requirements that are not complied with.

Warning: there will be no extensions to the due date. Any late submission will incur a 5% per day penalty. It is strongly suggested that you submit the assignment well before the deadline, in case there are some unexpected complications on the day (e.g. interruptions to your home internet connection).Plagiarism and collusion

Plagiarism and collusion are viewed as serious offences. All submitted code will be subjected to a similarity checker, and any submissions determined to be similar to a submission from a current or past student will be investigated further. The outcome of the decision pertaining to plagiarism and/or collusion will be determined by the faculty administration. If it is determined that plagiarism or collusion has occurred then you may be severely penalised, from losing all marks for the assignment, to facing disciplinary action at the Faculty level. To ensure compliance with this requirement, be sure to do all your coding in the Ed workspace environment and do not copy and paste any code into the workspace environment.

In cases where cheating has been confirmed, students have been severely penalised, from losing all marks for an assignment, to facing disciplinary action at the Faculty level. Monash has several policies in relation to these offences and it is your responsibility to acquaint yourself with these.

Student Academic Integrity Procedure (https://www.monash.edu/__data/assets/pdf_file/0004/2300935/Student-Academic-Integrity-Procedure.pdf))