SNAKE/src/tests/IATest.java

// package tests;

// import java.io.File;
// import java.util.Arrays;

// import game.environnement.Map;
// import personnage.IA;
// import personnage.Personnage;
// import personnage.IAQLearning.QTable;
// import personnage.IAQLearning.State;
// import personnage.types.Mouvement;

// public class IATest {
//     private final static String path1 = "res" + File.separator + 
//                                     "save" + File.separator + 
//                                     "learn1.ser";

//     private final static String path2 = "res" + File.separator + 
//                                     "save" + File.separator + 
//                                     "learn2.ser";

//     public static void learnIA() {
//         double alpha = 0.1;
//         double gamma = 0.9; 
//         double epsilon = 1.0; 
//         double decay_rate = 0.995; 
//         double minEpsilon = 0.01;

//         int totalEpisodes = 200;

//         Personnage.n = 4;

//         for(int episode = 0; episode < totalEpisodes; episode++) {
//             QTable qTable = new QTable();
//             IA iaqLearning = new IA(new int[] {2, 2}, qTable, alpha, gamma, epsilon, null);
//             Map map = new Map(12, 22);
    
//             qTable.get(path1);
    
//             while (true) {
//                 Map mapIA = new Map(map.getGrid()[0].length, map.getGrid().length);
//                 mapIA.replaceGrid(map.getGrid());
                
//                 map.placePersonnages(iaqLearning);

//                 State currentState = iaqLearning.getCurrentState(map.getGrid());
//                 Mouvement mouvement = iaqLearning.bestMouvement(currentState);

//                 iaqLearning.moveSnake(mouvement);

//                 int[] coordinate = iaqLearning.getHeadCoordinate();

//                 if(map.isGameOver(coordinate) || iaqLearning.applyEffects(map.getEffect(coordinate))) {
//                     iaqLearning.receiveReward(currentState, mouvement, -1.0, currentState);
//                     break;
//                 }

//                 mapIA.placePersonnages(iaqLearning);

//                 State nextState = iaqLearning.getCurrentState(mapIA.getGrid());

//                 iaqLearning.receiveReward(currentState, mouvement, 0.1, nextState);
//                 iaqLearning.increaseRound();

//                 mapIA.clearMap();
//                 map.clearMap(); 
//             }

//             qTable.save(path1);

//             epsilon = Math.max(minEpsilon, epsilon * decay_rate);
//             System.out.println("Episode : " + episode + " | States : " + qTable.getqValues().size());
//         }
//     }

//     public static void learnIAvsIA() {
//         double alpha = 0.9;
//         double gamma = 0.9;
//         double epsilon = 0.1;

//         int maxEpisode = 1000000;

//         Personnage.n = 4;

//         QTable qTable1 = new QTable();
//         qTable1.get(path1);

//         QTable qTable2 = new QTable();
//         qTable2.get(path2);

//         for (int episode = 0; episode < maxEpisode; episode++) {
//             Map map = new Map(12, 22);

//             IA[] iaqLearnings = new IA[] {
//                 new IA(new int[] {2, 2}, qTable1, alpha, gamma, epsilon, null),
//                 new IA(new int[] {9, 19}, qTable2, alpha, gamma, epsilon, null),
//             };

//             boolean isGameOver = false;

//             while(true) {
//                 for (int personnages = 0; personnages < iaqLearnings.length; personnages++) {
//                     IA iaqLearning = iaqLearnings[personnages];
//                     Map mapIA = new Map(map.getGrid()[0].length, map.getGrid().length);

//                     for (IA value : iaqLearnings) {
//                         map.placePersonnages(value);
//                     }

//                     State currentState = iaqLearning.getCurrentState(map.getGrid());
//                     Mouvement mouvement = iaqLearning.bestMouvement(currentState);

//                     iaqLearning.moveSnake(mouvement);

//                     int[] coordinate = iaqLearning.getHeadCoordinate();

//                     if (map.isGameOver(coordinate) || iaqLearning.applyEffects(map.getEffect(coordinate))) {
//                         iaqLearning.receiveReward(currentState, mouvement, -1000, currentState);
//                         isGameOver = true;
//                         break;
//                     }

//                     int value = (personnages + 1) % 2; 

//                     for (int[] snakeCoordinate : iaqLearnings[value].getCoordinate()) {
//                         if (Arrays.equals(coordinate, snakeCoordinate)) {
//                             iaqLearnings[value].receiveReward(currentState, mouvement, 1000, currentState);
//                             iaqLearning.receiveReward(currentState, mouvement, -500, currentState);
                        
//                             isGameOver = true;
//                             break;
//                         }
//                     }

//                     mapIA.placePersonnages(iaqLearning);

//                     State nextState = iaqLearning.getCurrentState(mapIA.getGrid());
//                     iaqLearning.receiveReward(currentState, mouvement, -0.01, nextState);

//                     iaqLearning.increaseRound();

//                     mapIA.clearMap();
//                     map.clearMap();

//                     System.out.println("States 1: " + qTable1.getqValues().size() + " States 2: " + qTable2.getqValues().size());
//                 }
            
//                 if(isGameOver) break;
//             }
//             System.out.println(" States 1: " + qTable1.getqValues().size() + " States 2: " + qTable2.getqValues().size() + "Episode: " + episode);
//         }
//         qTable1.save(path1);
//     }
// }