edit 2048 code

Author: SidhartK

docs/src/index.md

@@ -2,15 +2,46 @@
 *A Julia interface to access decision models which appeared in Algorithms for Decision Making.*
 
 ## Problem Summary
+The following table contains the information about each of the problems contained in this package.
+
+| Name      | ``\mathcal{I}``    | ``\mathcal{S}``   | ``\mathcal{A}``   | ``\mathcal{O}``   | ``\gamma``    | Struct Name  | Type
+| ------------- | ---------- | :----------: | :----------: | :----------: | :----------: | :----------: | -----------: |
+| Hexworld  | –   | varies   | 6   | -  | 0.9   | HexWorld, StraightLineHexWorld    | MDP   |
+| 2048     | -  | ``\infty``  | 4    | -   | 1   | TwentyFortyEight    | MDP  |
+| Cart-pole  | -  | ``(\subseteq \mathbb{R}^4)``  | 2   | -  | 1  | CartPole  | MDP  |
+| Mountain Car  | -  | ``(\subseteq \mathbb{R}^2)``  | 3  | -  | 1  | MountainCar  | MDP  |
+| Simple Regulator  | -  | ``(\subseteq \mathbb{R})``  | ``(\subseteq \mathbb{R})``  | -  | 1 or 0.9  | LQR  | MDP  |
+| Aircraft collision avoidance  | -  | (\subseteq \mathbb{R}^3)``  | 3  | -  | 1  | CollisionAvoidance   | MDP |
+| Crying baby | - | 2  | 3 | 2 | 0.9 | CryingBaby | POMDP |
+| Machine Replacement | - | 3 | 4 | 2 | 1 | MachineReplacement | POMDP |
+| Catch | - | 4 | 10 | 2 | 0.9 | Catch | POMDP |
+| Prisoner's dilemma | 2 | - | 2 per agent | - | 1  | PrisonersDilemma  | SimpleGame |
+| Rock-paper-scissors | 2 | - | 3 per agent | - | 1 | RockPaperScissors | SimpleGame |
+| Traveler's Dilemma | 2 | - | 99 per agent | - | 1 | Travelers | SimpleGame |
+| Predator-prey hex world | varies | varies | 6 per agent | - | 0.9 | PredatorPreyHexWorld, CirclePredatorPreyHexWorld | MG |
+| Multiagent Crying Baby | 2 | 2 | 3 per agent  | 2 per agent | 0.9 | MultiCaregiverCryingBaby | POMG |
+| Collaborative predator-prey hex world | varies | varies | 6 per agent | -  | 0.9  | CollaborativePredatorPreyHexWorld, SimpleCollaborativePredatorPreyHexWorld, CircleCollaborativePredatorPreyHexWorld | DecPOMDP
+
+The last column has the following key:
+ - MDP: Markov Decision Process
+ - POMDP: Partially Observable Markov Decision Process
+ - SimpleGame: Simple Game
+ - MG: Markov Game
+ - POMG: Partially Observable Markov Game
+ - DecPOMDP: Decentralized Partially Observable Markov Decision Process
 
-![Problem Summary](figures/problemsum.svg)
 
 ## Usage
 If we look at a specific problem whose struct is named `structName` and whose type is `type` as shown in the problem summary table. Then we are able to set up an instance of the struct for that specific problem using the following:
 ```julia
 m = structName()
-decprob = type(m)
+decprob = type(m)   # type in this case refers to one of MDP, POMDP, SimpleGame, MG, POMG or, DecPOMDP
 ```
+An example of this would be to create an instance of the Prisoner's Dilemma struct, we would use the following code:
+```julia
+m = PrisonersDilemma()
+decprob = SimpleGame(m)
+
 
 ### MDP Models