diff --git a/server/src/main/java/fr/lnl/game/server/games/action/Action.java b/server/src/main/java/fr/lnl/game/server/games/action/Action.java
index 9179e65..f8f3524 100644
--- a/server/src/main/java/fr/lnl/game/server/games/action/Action.java
+++ b/server/src/main/java/fr/lnl/game/server/games/action/Action.java
@@ -19,7 +19,7 @@ public interface Action {
     boolean isPossible();
 
     /**
-     * Used by {@link Move}, {@link Shot} and {@link DropObject} to list all direction when the action is possible
+     * Used by {@link Move}, {@link Shot} and {@link DropObject} to list all direction where the action is possible
      * @return a list a point where the action is possible (not block by a wall per example)
      */
     Point getPoint();
diff --git a/server/src/main/java/fr/lnl/game/server/games/grid/build/package-info.java b/server/src/main/java/fr/lnl/game/server/games/grid/build/package-info.java
new file mode 100644
index 0000000..ec24a12
--- /dev/null
+++ b/server/src/main/java/fr/lnl/game/server/games/grid/build/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Package containing all about Grid construction
+ */
+package fr.lnl.game.server.games.grid.build;
\ No newline at end of file
diff --git a/server/src/main/java/fr/lnl/game/server/games/grid/elements/package-info.java b/server/src/main/java/fr/lnl/game/server/games/grid/elements/package-info.java
new file mode 100644
index 0000000..12e41c9
--- /dev/null
+++ b/server/src/main/java/fr/lnl/game/server/games/grid/elements/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Package containing all the elements that can be arranged in a grid
+ */
+package fr.lnl.game.server.games.grid.elements;
\ No newline at end of file
diff --git a/server/src/main/java/fr/lnl/game/server/games/grid/package-info.java b/server/src/main/java/fr/lnl/game/server/games/grid/package-info.java
new file mode 100644
index 0000000..bcadaf0
--- /dev/null
+++ b/server/src/main/java/fr/lnl/game/server/games/grid/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Package containing all about Grid components
+ */
+package fr.lnl.game.server.games.grid;
\ No newline at end of file
diff --git a/server/src/main/java/fr/lnl/game/server/games/player/AbstractPlayer.java b/server/src/main/java/fr/lnl/game/server/games/player/AbstractPlayer.java
index 48a1bda..eaa6e65 100644
--- a/server/src/main/java/fr/lnl/game/server/games/player/AbstractPlayer.java
+++ b/server/src/main/java/fr/lnl/game/server/games/player/AbstractPlayer.java
@@ -107,7 +107,7 @@ public abstract class AbstractPlayer implements Player {
 
 
     @Override
-    public void setPosition(Point position){
+    public void setPosition(/* NotNull */ Point position){
         if(position == null){
             throw new IllegalArgumentException("Position is null");
         }
diff --git a/server/src/main/java/fr/lnl/game/server/games/player/ClassPlayer.java b/server/src/main/java/fr/lnl/game/server/games/player/ClassPlayer.java
index 08aa12f..669aae9 100644
--- a/server/src/main/java/fr/lnl/game/server/games/player/ClassPlayer.java
+++ b/server/src/main/java/fr/lnl/game/server/games/player/ClassPlayer.java
@@ -3,6 +3,9 @@ package fr.lnl.game.server.games.player;
 import fr.lnl.game.server.games.weapon.Firearm;
 import fr.lnl.game.server.games.weapon.Weapon;
 
+/**
+ * ClassPlayer contains all data about the cost of an action or the cost of a damage
+ */
 public enum ClassPlayer {
 
     DEFAULT(800, 25, 20, 30, 40, 10, 80, 40, 20, 15, new Firearm()),
diff --git a/server/src/main/java/fr/lnl/game/server/games/player/ComputerPlayer.java b/server/src/main/java/fr/lnl/game/server/games/player/ComputerPlayer.java
index 0337dcc..40eb8e9 100644
--- a/server/src/main/java/fr/lnl/game/server/games/player/ComputerPlayer.java
+++ b/server/src/main/java/fr/lnl/game/server/games/player/ComputerPlayer.java
@@ -5,12 +5,19 @@ import fr.lnl.game.server.games.action.Action;
 import fr.lnl.game.server.games.action.Nothing;
 import fr.lnl.game.server.utils.Point;
 
+/**
+ * Super class of all Computer players
+ */
 public abstract class ComputerPlayer extends AbstractPlayer {
 
     public ComputerPlayer(Integer id, Point point, ClassPlayer classPlayer) {
         super(id, point, false, classPlayer);
     }
 
+    /**
+     * Call when an AI need to choose an action to execute
+     * @return the chosen action
+     */
     public Action choseAction(Game game){
         Action action;
         switch (getActions().size()){
diff --git a/server/src/main/java/fr/lnl/game/server/games/player/HumanPlayer.java b/server/src/main/java/fr/lnl/game/server/games/player/HumanPlayer.java
index 5cc31b8..f27e31e 100644
--- a/server/src/main/java/fr/lnl/game/server/games/player/HumanPlayer.java
+++ b/server/src/main/java/fr/lnl/game/server/games/player/HumanPlayer.java
@@ -2,6 +2,11 @@ package fr.lnl.game.server.games.player;
 
 import fr.lnl.game.server.utils.Point;
 
+/**
+ * Instance of Human Player.<br>
+ * A human player choose an action to execute by using mouse or keyboard.<br>
+ * Human Player don't implement choseAction cause this method is executed on client part
+ */
 public class HumanPlayer extends AbstractPlayer {
 
     public HumanPlayer(Integer id, Point point, ClassPlayer classPlayer) {
diff --git a/server/src/main/java/fr/lnl/game/server/games/player/RandomComputerPlayer.java b/server/src/main/java/fr/lnl/game/server/games/player/RandomComputerPlayer.java
index 35ee9fa..3a1af8b 100644
--- a/server/src/main/java/fr/lnl/game/server/games/player/RandomComputerPlayer.java
+++ b/server/src/main/java/fr/lnl/game/server/games/player/RandomComputerPlayer.java
@@ -14,6 +14,10 @@ public class RandomComputerPlayer extends ComputerPlayer {
         super(id,point, classPlayer);
     }
 
+    /**
+     * Choose an action fully randomly
+     * @return an action between all available
+     */
     @Override
     public Action strategy(Game game) {
         Action action = null;
diff --git a/server/src/main/java/fr/lnl/game/server/games/player/package-info.java b/server/src/main/java/fr/lnl/game/server/games/player/package-info.java
new file mode 100644
index 0000000..c8ab6a4
--- /dev/null
+++ b/server/src/main/java/fr/lnl/game/server/games/player/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Package storing all players classes and as well AI behavior
+ */
+package fr.lnl.game.server.games.player;
\ No newline at end of file
diff --git a/server/src/main/java/fr/lnl/game/server/games/weapon/Weapon.java b/server/src/main/java/fr/lnl/game/server/games/weapon/Weapon.java
index 9d0b97e..fe9098b 100644
--- a/server/src/main/java/fr/lnl/game/server/games/weapon/Weapon.java
+++ b/server/src/main/java/fr/lnl/game/server/games/weapon/Weapon.java
@@ -4,8 +4,14 @@ public interface Weapon {
 
     int getBullet();
 
+    /**
+     * @return distance a bullet can go horizontally
+     */
     int getHorizontalDistance();
 
+    /**
+     * @return distance a bullet can go vertically
+     */
     int getVerticalDistance();
 
 }
diff --git a/server/src/main/java/fr/lnl/game/server/games/weapon/package-info.java b/server/src/main/java/fr/lnl/game/server/games/weapon/package-info.java
new file mode 100644
index 0000000..3e78ae3
--- /dev/null
+++ b/server/src/main/java/fr/lnl/game/server/games/weapon/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Package containing all bout player's weapons
+ */
+package fr.lnl.game.server.games.weapon;
\ No newline at end of file