===================================================================
--- original.js
+++ change.js
@@ -7,8 +7,9 @@
 
 /**** 
 * Game Code
 ****/ 
+//PARAMETRES DIVERS DU JEU 
 /* 
 Game Zones:
 - The game is played on a 2048x2732 pixels screen.
 0. let playersZoneWidth = 200;
@@ -16,8 +17,32 @@
 2. let OptionsZone = {x: 0, y: app.screen.height-200, width: app.screen.width, height: 200};
 3. let HumanZone = {x: 0, y: 200, width: playersZoneWidth, height: app.screen.height-OptionsZone.height-ScoreZone.height};
 4. let ComputerZone = {x: app.screen.width-playersZoneWidth, y: 200, width: playersZoneWidth, height: app.screen.height-OptionsZone.height-ScoreZone.height};
 5. let RoadZone = {x: playersZoneWidth, y: 200, width: app.screen.width-HumanZone.width-OrdiZone.width, height: app.screen.height-OptionsZone.height-ScoreZone.height};
+- At the start of the game, 10 rocks of three different sizes are randomly placed in the RoadZone.
+- Each player has two bulldozers to move the rocks.
+- A bulldozer moving without pushing anything has a base speed V.
+- When a bulldozer pushes a small rock, the combined speed is V/2.
+- When a bulldozer pushes a medium rock, the combined speed is V/4.
+- When a bulldozer pushes a large rock, the combined speed is V/8.
+- When two bulldozers push a rock together, one behind the other, the pushing speeds are doubled compared to the speed of a single bulldozer.
+- The human player clicks on a rock to command the nearest free bulldozer to push it towards the ComputerZone.
+- The computer-controlled bulldozers randomly choose a rock and push it towards the HumanZone.
+- If a human bulldozer is free, the player can click on a rock already being pushed to have the bulldozer move behind the first one and push the rock faster.
+- It is possible to push a rock that is being pushed by the opponent to block or slow down its movement. If a second bulldozer is added in this situation, the rock will be pushed in the direction where there are fewer bulldozers.
+- The game ends when all rocks have been moved out of the RoadZone. The winner is the one with the highest score, based on the number and size of rocks successfully moved to the opposing zone.
+- The goal for the human player is to move all the rocks to the ComputerZone while preventing the computer from doing the same. Effective strategy and skillful bulldozer management are necessary to maximize the score.
+There is no time limit in this game, and players must use their judgment to determine the best way to move rocks and use their bulldozers to win the game.
+*/ 
+/* 
+Game Zones:
+- The game is played on a 2048x2732 pixels screen.
+0. let playersZoneWidth = 200;
+1. let ScoreZone = {x: 0, y: 0, width: app.screen.width, height: 200};
+2. let OptionsZone = {x: 0, y: app.screen.height-200, width: app.screen.width, height: 200};
+3. let HumanZone = {x: 0, y: 200, width: playersZoneWidth, height: app.screen.height-OptionsZone.height-ScoreZone.height};
+4. let ComputerZone = {x: app.screen.width-playersZoneWidth, y: 200, width: playersZoneWidth, height: app.screen.height-OptionsZone.height-ScoreZone.height};
+5. let RoadZone = {x: playersZoneWidth, y: 200, width: app.screen.width-HumanZone.width-OrdiZone.width, height: app.screen.height-OptionsZone.height-ScoreZone.height};
 Game settings:
 - At the start of the game, 10 rocks of three different sizes (small, medium, large) are randomly placed in the RoadZone.
 - The rocks have square 100x100 pixels sprites centered (anchor 0.5, 0.5).
 - The Rocks have a front and a back zone to simulate a contact area with the Buldos.
@@ -55,33 +80,8 @@
 - The winner is the one with the highest score, based on the number and size of rocks successfully moved to the opposing zone (small rock is 1 point, medium rock is 2 points, large rock is 3 points).
 - The goal for the human player is to move all the rocks to the ComputerZone while preventing the computer from doing the same.
 - There is no time limit in this game, and players must use their judgment to determine the best way to move rocks and use their Buldos to win the game.
 */ 
-/* 
-Game Zones:
-- The game is played on a 2048x2732 pixels screen.
-0. let playersZoneWidth = 200;
-1. let ScoreZone = {x: 0, y: 0, width: app.screen.width, height: 200};
-2. let OptionsZone = {x: 0, y: app.screen.height-200, width: app.screen.width, height: 200};
-3. let HumanZone = {x: 0, y: 200, width: playersZoneWidth, height: app.screen.height-OptionsZone.height-ScoreZone.height};
-4. let ComputerZone = {x: app.screen.width-playersZoneWidth, y: 200, width: playersZoneWidth, height: app.screen.height-OptionsZone.height-ScoreZone.height};
-5. let RoadZone = {x: playersZoneWidth, y: 200, width: app.screen.width-HumanZone.width-OrdiZone.width, height: app.screen.height-OptionsZone.height-ScoreZone.height};
-- At the start of the game, 10 rocks of three different sizes are randomly placed in the RoadZone.
-- Each player has two bulldozers to move the rocks.
-- A bulldozer moving without pushing anything has a base speed V.
-- When a bulldozer pushes a small rock, the combined speed is V/2.
-- When a bulldozer pushes a medium rock, the combined speed is V/4.
-- When a bulldozer pushes a large rock, the combined speed is V/8.
-- When two bulldozers push a rock together, one behind the other, the pushing speeds are doubled compared to the speed of a single bulldozer.
-- The human player clicks on a rock to command the nearest free bulldozer to push it towards the ComputerZone.
-- The computer-controlled bulldozers randomly choose a rock and push it towards the HumanZone.
-- If a human bulldozer is free, the player can click on a rock already being pushed to have the bulldozer move behind the first one and push the rock faster.
-- It is possible to push a rock that is being pushed by the opponent to block or slow down its movement. If a second bulldozer is added in this situation, the rock will be pushed in the direction where there are fewer bulldozers.
-- The game ends when all rocks have been moved out of the RoadZone. The winner is the one with the highest score, based on the number and size of rocks successfully moved to the opposing zone.
-- The goal for the human player is to move all the rocks to the ComputerZone while preventing the computer from doing the same. Effective strategy and skillful bulldozer management are necessary to maximize the score.
-There is no time limit in this game, and players must use their judgment to determine the best way to move rocks and use their bulldozers to win the game.
-*/ 
-//PARAMETRES DIVERS DU JEU 
 function _typeof2(o) {
 	"@babel/helpers - typeof";
 	return _typeof2 = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
 		return typeof o;
@@ -271,8 +271,9 @@
 	self.dyHotRightSpot = petitRocherDyHotRight;
 	self.isBeingPushed = false; //Flag qui indique si le rocher est pousse par un buldo
 	self.isBlocked = false; //Flag qui indique si le rocher est bloque
 	self.vitesse = 0.0;
+	self.pushers = []; //Liste des buldos qui vont pousser ou qui poussent le rocher
 	self.pushedByHuman = null; //BuldoRock qui pousse le rocher
 	self.pushedByOrdi = null; //BuldoZer qui pousse le rocher
 	self.totalForce = 0; //Somme des forces qui poussent le rocher (+1 pour un buldoRock, -1 pour un buldoZer)
 	self.totalBuldos = 0; //Nombre de Buldos qui poussent le rocher
@@ -353,8 +354,19 @@
 		}
 	}; //fin onClickRocherBuldo
 	this.destroy = function () {
 		//On previent les eventuels buldos qui poussent le rocher que le rocher est detruit
+		if (this.pushers) {
+			this.pushers.forEach(function (buldo) {
+				if (buldo != null) {
+					buldo.rocherDestination = null;
+					buldo.rocherPushed = null;
+					buldo.isPushing = false;
+				}
+			});
+		}
+		//On vide la liste des buldos qui poussent le rocher
+		this.pushers = [];
 		if (this.pushedByHuman != null) {
 			this.pushedByHuman.rocherPushed = null;
 			this.pushedByHuman.rocherDestination = null;
 			this.pushedByHuman.isPushing = false;
@@ -429,9 +441,9 @@
 	}
 	this.sprite.x = x;
 	this.sprite.y = y;
 	this.sprite.anchor.set(0.5);
-	this.sprite.scale.set(1.5);
+	this.sprite.scale.set(2.0);
 	this.sprite.visible = false;
 	this.xBase = x; //Position de base du sprite
 	this.yBase = y;
 	this.stack = []; //Pile des points x,y destination cliqués par la souris
@@ -708,9 +720,9 @@
 			this.isMovingR = false; // on indique que le Buldo n'est plus en train de pousser un rocher
 			return;
 		}
 		if (this.isMovingR) {
-			if (this.rocherDestination && this.rocherDestination.sprite) {
+			if (this.rocherDestination && this.rocherDestination.sprite != null) {
 				var xTarget = this.checkForce(); //Abscisse x du point chaud AV du rocher ou du point chaud arriere du Buldo allie poussant
 			} else {
 				return; // Exit the function if rocherDestination or its sprite is null
 			}
@@ -742,8 +754,9 @@
 	this.moveToRock = function (rocher) {
 		x = this.camp == humanCamp ? x + rocher.dxHotLeftSpot : x + rocher.dxHotRightSpot;
 		y = rocher.sprite.y;
 		this.rocherDestination = rocher; //Le buldo a pour destination le sprite rocher cliqué
+		rocher.pushers.push(this); //On ajoute le Buldo a la liste des Buldos qui poussent le rocher
 		var sens = this.sprite.y < y ? 1 : -1; //Test Calcul du sens de deplacement horizontale : 1=droite, -1=gauche            
 		sens = this.camp == humanCamp ? sens : -sens; //Test Si le Buldo est humain, il doit arriver horizontalement par la gauche (abscisse croissante), sinon par la droite (abscisse decroissante)
 		this.addMoveToStack(typeRotation, sens * 90, 0); //Test rotation Buldo
 		this.addMoveToStack(typeLigneVtoY, 0, y); //Test mouvement Buldo
@@ -870,8 +883,11 @@
 		buldo.dyAvHotSpot = buldoZerHotSpotY;
 		buldo.dxBkHotSpot = buldoZerBkHotSpotX * 2; //Offset du point chaud arriere du sprite (point de contact avec un autre Buldo) décalage par rapport au point d'ancrage
 		buldo.dyBkHotSpot = buldoZerBkHotSpotY;
 	}
+	//On initialise la position de base
+	buldo.sprite.x = buldo.xBase;
+	buldo.sprite.y = buldo.yBase;
 	return buldo;
 } //fin createSingleBuldo
 function createBuldos() {
 	//CREATION D'OBJETS A PARTIR DES SPRITES //constructor(x, y, camp)       
@@ -886,28 +902,11 @@
 	buldos.push(buldoZer1);
 	buldos.push(buldoZer2);
 	//On donne un nom aux objets
 	buldoRock1.name = 'buldoRock1';
-	buldoRock1.vitessePS = vitesseBuldo;
 	buldoRock2.name = 'buldoRock2';
-	buldoRock2.vitessePS = vitesseBuldo;
 	buldoZer1.name = 'buldoZer1';
-	buldoZer1.vitessePS = vitesseBuldo;
 	buldoZer2.name = 'buldoZer2';
-	buldoZer2.vitessePS = vitesseBuldo;
-	//On initialise leurs positions de base xBase et yBase
-	buldoRock1.xBase = buldoRock1.sprite.x;
-	buldoRock1.yBase = buldoRock1.sprite.y;
-	buldoRock1.sprite.visible = true;
-	buldoRock2.xBase = buldoRock2.sprite.x;
-	buldoRock2.yBase = buldoRock2.sprite.y;
-	buldoRock2.sprite.visible = true;
-	buldoZer1.xBase = buldoZer1.sprite.x;
-	buldoZer1.yBase = buldoZer1.sprite.y;
-	buldoZer1.sprite.visible = true;
-	buldoZer2.xBase = buldoZer2.sprite.x;
-	buldoZer2.yBase = buldoZer2.sprite.y;
-	buldoZer2.sprite.visible = true;
 	return buldos;
 } //fin de createBuldos
 var buldos = createBuldos(); //Creation des Buldos
 var rochers = generateRandomRock(nbRochers); //création des rochers