PA2

Ask questions about this at http://pbl.cc.gatech.edu/cs2390/349.html

YOU MUST WORK IN TEAMS OF TWO TO FOUR ON THIS PROJECT! The cost of not working on a team is 15 points.

I'll define the battlefield and one team. You define the other team. You'll use the simulation package, and will be required to put up a user interface where we can see the movement of troops and tanks, and get summary information in text fields, controllable with buttons.

The game board looks like this:

The Computer team starts at A (1@1 on the board, horizontal@vertical). Your team starts at B (8@8). The goal is to get at least one of your team into the opposing team's camp. Team B can take advantage of knowing Team A's strategy.

Each team starts out with five soldiers and three tanks (soldiers cannot enter or leave tanks).

Moving and Navigation

• Anyone can move in any direction horizontally or vertically at any time.
• It takes one unit of time to leave the base.
• It takes a soldier a Uniform distribution of 1 to 5 time segments to cross grass. It takes a tank a Uniform distribution of 1 to 3 time segments to cross grass.
• It takes a Uniform distribution of 10 to 15 time segments to cross water. Tanks cannot cross water.
• It takes a Normal distribution of 10 with a standard deviation of 10 to cross hills. (Take absolute value of negative values.)
• It takes a Normal distribution of 5 with a standard deviation of 10 to cross swamp. (Take absolute value of negative values.)
• A cell can hold any number of pieces, and enemy pieces can cross the same cell without conflict.

Combat

• Anyone can fire weapons at any time in any of four (horizontal or vertical) directions. Soldiers and tanks each have weapons.
• A hit target is removed from play. If there are multiple targets in the same cell, only one can be hit by a single firing.
• Soldiers can fire only one cell away. They have a 1 out of three chance of hitting their target when it is one cell away, and a 1 out of two (50%) chance of hitting the target within the same cell.
• Tanks can fire up to two cells away (choice of one or two). They have a one out of five chance of hitting a soldier. They have a one out of three chance of hitting a tank.
• Only tanks can hit a tank. Tanks are not targets for soldiers. Tanks can hit soldiers.
• It takes everyone 1 time segment to reload a weapon. A piece cannot move while reloading. A piece must reload after firing.

Team A's Strategy

• Team A leaves one tank at Cell 1@1 to defend the base. Whenever an enemy comes within range, it fires.
• Team A moves one soldier to 1@2 and one to 2@1, and also leaves them there to defend the base. Whenever an enemy comes with range, these soldiers fire (both of them).
• The remaining tanks and soldiers split into two squads. Two soldiers and a tank move horizontally across the top, then vertically down the right side to reach the base. The other soldier and a tank move vertically down the left side, then across the bottom to reach the base.
• The squad that moves across the top first moves as a group. All pieces move to the next cell, and no cell moves on until all the squad pieces have reached that cell. This squad never fires until it is within three cells of the enemy base. Then each piece alternates firing with moving, and only fires at enemy targets along its route to the enemy base. If there are multiple targets, they randomly choose (tank or soldier).
• The squad that moves down first moves as individual pieces. As quickly as possible, the pieces move along their route. This group never fires at all.

User Interface

• I want to see icons for where all troops are during play.
• At the end of play, I want to be able to click on any cell to see what's in that cell. I also want to know how many weapons were fired by each of the participants in that cell.
• At the end of play, announce who won and how many time steps (NEEDED FOR EXTRA CREDIT DETERMINATION!).
• At the end of play, if I click in a team encampment cell, I want to see statistics on that team: How many weapons fired, how many hit, whether or not the team won.
• At the end of play, I want a "Paths" button somewhere that I can click on to see all of the paths of all of the participants drawn on the gameboard.
• There must be a "Quit" button that ends the user interface and returns control to the user.
• Assume a 400 by 400 screen space.

Scenarios

• How does your team's strategy take advantage of knowing Team A's strategy?
• What happens when your tank fires a weapon? How does a target find out that it has been hit?
• What happens when the user clicks the "Paths" button?
• What happens when the user clicks on a cell after the simulation has ended?

Running the Code

We will start your code by executing WarGame begin. You will then execute your simulation until either one or the other team wins, or a stalemate is reached (e.g., all players are dead except those that won't move).

Extra Credit

• 5 points extra credit in each section that wins over Team A in the smallest number of time steps.
• 5 points extra credit if another team uses your UI structure. (Other team must reference the credited team by name in writeup!) (NOTE: Can't work both ways! If Team 1 uses Team 2's structure, Team 2 can't also use and credit Team 1's structure.)

Hints, Issues, Suggestions

• Grading will be based on Grading Policy page.
• Please follow Design Documentation standards.
• Discuss at PA2 Collaboration Space.
• Due on May 14 in class. Each team member submits the team code via the turnIn system. Please bring your written documentation (one set per team) to class on May 14.