diff --git a/src/configuration/ElementListIterator.java b/src/configuration/ElementListIterator.java
index bf61e06..ac9a8d7 100644
--- a/src/configuration/ElementListIterator.java
+++ b/src/configuration/ElementListIterator.java
@@ -18,11 +18,11 @@ public class ElementListIterator implements Iterator<Element> {
     public boolean hasNext() {
         if (position >= nodes.getLength()) return false;
 
-        // Check if there is a remaining element node
+        // Vérifie s'il reste un nœud élément
         for (int i = position; i < nodes.getLength(); i++) {
             Node node = nodes.item(i);
 
-            if (node.getNodeType() == Node.ELEMENT_NODE) return true;
+            if (isElementNode(node)) return true;
         }
 
         return false;
@@ -35,7 +35,11 @@ public class ElementListIterator implements Iterator<Element> {
         Node node = nodes.item(position);
         position++;
 
-        if (node.getNodeType() == Node.ELEMENT_NODE) return (Element) node;
+        if (isElementNode(node)) return (Element) node;
         return next();
     }
+
+    private static boolean isElementNode(Node node) {
+        return node.getNodeType() == Node.ELEMENT_NODE;
+    }
 }
diff --git a/src/simulation/Building.java b/src/simulation/Building.java
index fb5767e..3c9d6e7 100644
--- a/src/simulation/Building.java
+++ b/src/simulation/Building.java
@@ -19,7 +19,12 @@ public abstract class Building {
     }
 
     public abstract void processInput(Component input);
-    public abstract Optional<Component> update();
+
+    /**
+     * Continue la production.
+     * @return Le composant produit. Si le bâtiment n'a aucun produit fini ce tour ci, l'Optional retourné sera vide.
+     */
+    public abstract Optional<Component> produce();
     public abstract BuildingMetadata getMetadata();
 
     public int getId() {
@@ -41,8 +46,4 @@ public abstract class Building {
     public BuildingState getState() {
         return state;
     }
-
-    public void setState(BuildingState state) {
-        this.state = state;
-    }
 }
diff --git a/src/simulation/ComponentRoute.java b/src/simulation/ComponentRoute.java
deleted file mode 100644
index 6a7dca2..0000000
--- a/src/simulation/ComponentRoute.java
+++ /dev/null
@@ -1,63 +0,0 @@
-package simulation;
-
-public class ComponentRoute {
-    public static final int SPEED = 3;
-
-    private final Component component;
-    private final Building outputBuilding;
-    private final int directionX;
-    private final int directionY;
-
-    private int x;
-    private int y;
-
-    public ComponentRoute(Component component, Building outputBuilding, int x, int y) {
-        this.component = component;
-        this.outputBuilding = outputBuilding;
-        this.x = x;
-        this.y = y;
-
-        directionX = normalizedDirection(x, outputBuilding.getX());
-        directionY = normalizedDirection(y, outputBuilding.getY());
-    }
-
-    private int normalizedDirection(int from, int to) {
-        return Integer.compare(to, from) * SPEED;
-    }
-
-    public void updatePosition() {
-        x += directionX;
-        y += directionY;
-    }
-
-    public void sendToOutputBuilding() {
-        outputBuilding.processInput(component);
-    }
-
-    public boolean isTransitFinished() {
-        boolean xSame = directionX == 0 ||
-                (directionX > 0 && x >= outputBuilding.getX()) ||
-                (directionX < 0 && x <= outputBuilding.getX());
-        boolean ySame = directionY == 0 ||
-                (directionY > 0 && y >= outputBuilding.getY()) ||
-                (directionY < 0 && y <= outputBuilding.getY());
-
-        return xSame && ySame;
-    }
-
-    public Component getComponent() {
-        return component;
-    }
-
-    public Building getOutputBuilding() {
-        return outputBuilding;
-    }
-
-    public int getX() {
-        return x;
-    }
-
-    public int getY() {
-        return y;
-    }
-}
diff --git a/src/simulation/Factory.java b/src/simulation/Factory.java
index 6b53487..e3ad99d 100644
--- a/src/simulation/Factory.java
+++ b/src/simulation/Factory.java
@@ -12,31 +12,40 @@ public class Factory extends Building implements WarehouseObserver {
     private final FactoryMetadata metadata;
     private final Map<ComponentType, Integer> inputsCount = new HashMap<>();
 
+    private float productionInterval;
     private boolean isProductionStarted;
-    private boolean warehouseFull;
-    private long productionTicks = 0L;
+    private boolean haltProduction;
+    private int productionTicks = 0;
 
     public Factory(int id, String type, int x, int y, FactoryMetadata metadata) {
         super(id, type, x, y);
         this.metadata = metadata;
+        this.productionInterval = metadata.getProductionInterval();
 
-        // Les usines sans entrées devraient toujours produire
+        // Les usines sans entrées doivent toujours produire
         isProductionStarted = metadata.getInputs().size() == 0;
         if (isProductionStarted) {
-            productionTicks = metadata.getProductionInterval();
+            productionTicks = (int) productionInterval;
         }
     }
 
     @Override
-    public Optional<Component> update() {
-        if (!isProductionStarted || (productionTicks == 0 && warehouseFull)) return Optional.empty();
+    public Optional<Component> produce() {
+        if (!isProductionStarted ||
+                (productionTicks == 0 && haltProduction)) { // La production en cours ne doit pas s'arrêter, mais l'usine ne doit pas produire un nouveau composant
+            return Optional.empty();
+        }
 
         productionTicks++;
-        if (productionTicks < metadata.getProductionInterval()) {
+        if (productionTicks < productionInterval) {
+            // La production n'est pas finie
             updateState();
             return Optional.empty();
         }
 
+        // La production est finie
+        // Réinitialise la progression de la production et défini l'état de l'usine à vide.
+        // Retourne le composant produit
         if (metadata.getInputs().size() > 0) {
             isProductionStarted = false;
         }
@@ -50,10 +59,13 @@ public class Factory extends Building implements WarehouseObserver {
     @Override
     public void processInput(Component input) {
         int inputCount = 0;
+
+        // S'assure qu'une entrée pour ce type de composant existe.
         if (inputsCount.containsKey(input.getType())) {
             inputCount = inputsCount.get(input.getType());
         }
 
+        // Augmente la quantité de ce type de composant en stock.
         inputsCount.put(input.getType(), inputCount + 1);
 
         if (hasEnoughComponents()) {
@@ -67,12 +79,33 @@ public class Factory extends Building implements WarehouseObserver {
     }
 
     @Override
-    public void updateWarehouseState(boolean full) {
-        warehouseFull = full;
+    public void updateWarehouseState(BuildingState state) {
+        updateProductionSpeed(state);
+    }
+
+    private void updateProductionSpeed(BuildingState state) {
+        int originalProductionInterval = metadata.getProductionInterval();
+
+        // Augmente le temps de production selon l'état de l'entrepôt
+        switch (state) {
+            case EMPTY -> {
+                haltProduction = false;
+                productionInterval = originalProductionInterval;
+            }
+            case ONE_THIRD -> {
+                haltProduction = false;
+                productionInterval = originalProductionInterval * 1.33333f;
+            }
+            case TWO_THIRD -> {
+                haltProduction = false;
+                productionInterval = originalProductionInterval * 2.66666f;
+            }
+            default -> haltProduction = true;
+        }
     }
 
     private void updateState() {
-        float productionRatio = productionTicks / (float) metadata.getProductionInterval();
+        float productionRatio = productionTicks / productionInterval;
         if (productionRatio >= (2 / 3f)) {
             state = BuildingState.FULL;
         } else if (productionRatio >= (1 / 3f)) {
@@ -84,7 +117,8 @@ public class Factory extends Building implements WarehouseObserver {
 
     private boolean hasEnoughComponents() {
         for (FactoryInput input : metadata.getInputs()) {
-            if (!inputsCount.containsKey(input.getType()) || inputsCount.get(input.getType()) < input.getQuantity()) {
+            if (!inputsCount.containsKey(input.getType()) ||
+                    inputsCount.get(input.getType()) < input.getQuantity()) {
                 return false;
             }
         }
@@ -93,6 +127,7 @@ public class Factory extends Building implements WarehouseObserver {
     }
 
     private void startProduction() {
+        // Retire les composants nécessaires des entrées
         for (FactoryInput input : metadata.getInputs()) {
             int inputCount = inputsCount.get(input.getType());
             inputsCount.put(input.getType(), inputCount - input.getQuantity());
diff --git a/src/simulation/RandomSellStrategy.java b/src/simulation/RandomSellStrategy.java
index 25a980a..086842e 100644
--- a/src/simulation/RandomSellStrategy.java
+++ b/src/simulation/RandomSellStrategy.java
@@ -3,7 +3,7 @@ package simulation;
 import java.util.Random;
 
 public class RandomSellStrategy implements SellStrategy {
-    private static final int SELL_CHANCE_PERCENT = 1;
+    private static final int SELL_CHANCE_PERCENT = 1;   // 1% de chance par tour
 
     private final Random random = new Random();
 
diff --git a/src/simulation/SellStrategy.java b/src/simulation/SellStrategy.java
index 4432f1d..68ffc0f 100644
--- a/src/simulation/SellStrategy.java
+++ b/src/simulation/SellStrategy.java
@@ -1,5 +1,8 @@
 package simulation;
 
 public interface SellStrategy {
+    /**
+     * @return S'il est possible de vendre ce tour ci.
+     */
     boolean shouldSell();
 }
diff --git a/src/simulation/TimedSellStrategy.java b/src/simulation/TimedSellStrategy.java
index 5ba25d9..fb71bd3 100644
--- a/src/simulation/TimedSellStrategy.java
+++ b/src/simulation/TimedSellStrategy.java
@@ -1,12 +1,12 @@
 package simulation;
 
 public class TimedSellStrategy implements SellStrategy {
-    private static final int SELL_INTERVAL = 300;
+    private static final int SELL_INTERVAL = 1000;
 
-    private long tick = 0L;
+    private long turn = 0L;
 
     @Override
     public boolean shouldSell() {
-        return ++tick % SELL_INTERVAL == 0;
+        return ++turn % SELL_INTERVAL == 0;
     }
 }
diff --git a/src/simulation/Warehouse.java b/src/simulation/Warehouse.java
index 3b0cd3b..a55cfe2 100644
--- a/src/simulation/Warehouse.java
+++ b/src/simulation/Warehouse.java
@@ -23,7 +23,7 @@ public class Warehouse extends Building implements WarehouseSubject {
     }
 
     @Override
-    public Optional<Component> update() {
+    public Optional<Component> produce() {
         if (planeCount > 0 && sellStrategy.shouldSell()) {
             sellPlane();
         }
@@ -71,13 +71,12 @@ public class Warehouse extends Building implements WarehouseSubject {
         observers.add(observer);
     }
 
-    public void detach(WarehouseObserver observer) {
+    public void dettach(WarehouseObserver observer) {
         observers.remove(observer);
     }
 
     public void notifyObservers() {
-        boolean isFull = planeCount >= capacity;
-        observers.forEach(o -> o.updateWarehouseState(isFull));
+        observers.forEach(o -> o.updateWarehouseState(state));
     }
 
     @Override
diff --git a/src/simulation/WarehouseObserver.java b/src/simulation/WarehouseObserver.java
index 3fb55ef..b94db58 100644
--- a/src/simulation/WarehouseObserver.java
+++ b/src/simulation/WarehouseObserver.java
@@ -4,7 +4,7 @@ public interface WarehouseObserver {
     /**
      * Méthode appelée lorsque l'état d'un entrepot change.
      *
-     * @param full Si l'entrepot est plein ou non
+     * @param full Si l'entrepôt est plein ou non
      */
-    void updateWarehouseState(boolean full);
+    void updateWarehouseState(BuildingState state);
 }
diff --git a/src/simulation/WarehouseSubject.java b/src/simulation/WarehouseSubject.java
index 9c25750..2e2c09b 100644
--- a/src/simulation/WarehouseSubject.java
+++ b/src/simulation/WarehouseSubject.java
@@ -2,6 +2,6 @@ package simulation;
 
 public interface WarehouseSubject {
     void attach(WarehouseObserver observer);
-    void detach(WarehouseObserver observer);
+    void dettach(WarehouseObserver observer);
     void notifyObservers();
 }
diff --git a/src/view/Environment.java b/src/view/Environment.java
index 223b989..aaded29 100644
--- a/src/view/Environment.java
+++ b/src/view/Environment.java
@@ -4,7 +4,7 @@ import javax.swing.*;
 
 public class Environment extends SwingWorker<Object, String> {
     private static final int DELAY = 100;
-    public static final String TICK_PROPERTY_NAME = "tick";
+    public static final String TURN_PROPERTY_NAME = "turn";
 
     private boolean active = true;
     private long tick = 0L;
@@ -14,7 +14,7 @@ public class Environment extends SwingWorker<Object, String> {
         while (active) {
             Thread.sleep(DELAY);
 
-            firePropertyChange(TICK_PROPERTY_NAME, tick, ++tick);
+            firePropertyChange(TURN_PROPERTY_NAME, tick, ++tick);
         }
         return null;
     }
diff --git a/src/view/MainPanel.java b/src/view/MainPanel.java
index f2f2439..c58754c 100644
--- a/src/view/MainPanel.java
+++ b/src/view/MainPanel.java
@@ -33,8 +33,11 @@ public class MainPanel extends JLayeredPane {
         simulationData = configuration.getSimulationData();
 
         buildingsById.clear();
+        componentIcons.clear();
+        removeAll();
+        repaint();
 
-        int routesOffset = 0;
+        int routesOffset = 0;   // Cet offset permet aux lignes de routes d'être au centre des icônes des bâtiments.
         for (Building building : simulationData.getBuildings()) {
             BuildingIcon icon = this.initializeBuilding(building);
             routesOffset = icon.getWidth() / 2;
@@ -72,27 +75,37 @@ public class MainPanel extends JLayeredPane {
         if (configuration == null) return;
 
         updateBuildings();
+        updateComponentIcons();
+    }
 
+    private void updateComponentIcons() {
         Collection<ComponentIcon> removedIcons = new ArrayList<>();
 
-        for (ComponentIcon icon : componentIcons) {
-            if (icon.isAtDestination()) {
-                removedIcons.add(icon);
+        componentIcons.forEach(i -> {
+            i.updatePosition();
+
+            boolean destinationReached = i.isAtDestination();
+            if (destinationReached) {
+                removedIcons.add(i);
             }
-        }
+        });
 
         removedIcons.forEach(i -> {
             componentIcons.remove(i);
             remove(i);
 
-            Building outputBuilding = getBuildingById(i.getDestinationId());
-            outputBuilding.processInput(i.getComponent());
+            pushComponentToBuilding(i.getComponent(), i.getDestinationId());
         });
     }
 
+    private void pushComponentToBuilding(Component c, int buildingId) {
+        Building outputBuilding = getBuildingById(buildingId);
+        outputBuilding.processInput(c);
+    }
+
     private void updateBuildings() {
         simulationData.getBuildings().forEach(b -> {
-            b.update().ifPresent(c -> addComponentRoute(c, b));
+            b.produce().ifPresent(c -> addComponentRoute(c, b));
         });
     }
 
diff --git a/src/view/MainWindow.java b/src/view/MainWindow.java
index 8448d86..6cb5bb9 100644
--- a/src/view/MainWindow.java
+++ b/src/view/MainWindow.java
@@ -36,7 +36,7 @@ public class MainWindow extends JFrame implements PropertyChangeListener {
 
     @Override
     public void propertyChange(PropertyChangeEvent event) {
-        if (event.getPropertyName().equals(Environment.TICK_PROPERTY_NAME)) {
+        if (event.getPropertyName().equals(Environment.TURN_PROPERTY_NAME)) {
             repaint();
         }
     }
diff --git a/src/view/components/ComponentIcon.java b/src/view/components/ComponentIcon.java
index 48e5a21..ffe5d4f 100644
--- a/src/view/components/ComponentIcon.java
+++ b/src/view/components/ComponentIcon.java
@@ -14,7 +14,7 @@ import java.util.Map;
 
 public class ComponentIcon extends JComponent {
     private static final Map<ComponentType, Image> loadedImages = new HashMap<>();
-    private static final int SPEED = 2;
+    private static final int SPEED = 1;
 
     private final Component component;
     private final int destinationId;
@@ -37,12 +37,14 @@ public class ComponentIcon extends JComponent {
 
     @Override
     public void paintComponent(Graphics g) {
-        position.translate(direction.x, direction.y);
-
         g.translate(position.x, position.y);
         g.drawImage(image, 0, 0, null);
     }
 
+    public void updatePosition() {
+        position.translate(direction.x, direction.y);
+    }
+
     public boolean isAtDestination() {
         return position.equals(destination);
     }
@@ -63,6 +65,8 @@ public class ComponentIcon extends JComponent {
     }
 
     private static int normalizedDirection(int from, int to) {
+        // compare retourne 1, 0 ou -1 en comparant to à from.
+        // Il suffit de multiplier ce résultat par la vitesse désirée pour trouver la direction normalisée.
         return Integer.compare(to, from) * SPEED;
     }
 
diff --git a/src/view/components/RouteLine.java b/src/view/components/RouteLine.java
index 0ca54b4..75b92ed 100644
--- a/src/view/components/RouteLine.java
+++ b/src/view/components/RouteLine.java
@@ -18,6 +18,9 @@ public class RouteLine extends JComponent {
         int offsetFromOriginX = Math.min(from.x, to.x);
         int offsetFromOriginY = Math.min(from.y, to.y);
 
+        // La position de la ligne dépend de x et y des bounds du JComponent.
+        // Ainsi, la position [0 0] est en fait [x y] des bounds.
+        // Il faut donc retirer ces positions pour ne pas dessiner en dehors du rectangle de dessin.
         from.translate(-offsetFromOriginX, -offsetFromOriginY);
         to.translate(-offsetFromOriginX, -offsetFromOriginY);
     }