diff --git a/MAVENProject/src/main/java/entity/Character.java b/MAVENProject/src/main/java/entity/Character.java
index c08c88553340fb3b12b0918c5949451dce350c30..afec9801c87abdd4644aa6a03743079900e5904c 100644
--- a/MAVENProject/src/main/java/entity/Character.java
+++ b/MAVENProject/src/main/java/entity/Character.java
@@ -1,18 +1,36 @@
 package entity;
 
 import environnement.Coordonnees;
+import environnement.Physique;
 
 public class Character extends Entity{
     Coordonnees coord;
-    int vitesseMax; // vitesse max
+    double vitesseMax; // vitesse max
+    double vitesseActuX = 0; // vitesse actuelle supposée nulle au départ
+    double vitesseActuZ = 0;
+    double m;
 
-    public Character(Coordonnees c,int vitesseMax){
+    public Character(Coordonnees c,int vitesseMax,double m){
         super(c,vitesseMax);
+        this.m = m;
 
     }
 
-    public void deplacements(){
+    public void deplacements(double commandX,double commandZ,int alpha){ // alpha indique si il est au sol ou non, il vaut 0 ou 1 en fonction
+        double delta = 0.1; // pas de temps = 0.1s
 
+        //on actualise les positions
+        double newX,newZ;
+        newX = -Physique.lambda/m*(vitesseActuX - commandX)*Math.exp(-Physique.lambda/m*delta) + commandX*delta + coord.getX();
+        newZ = ((alpha-1)*Physique.g + commandZ)/2*delta*delta + vitesseActuZ*delta + coord.getZ();
+        coord = new Coordonnees(newX, newZ);
+
+        //on actualise les vitesses
+        vitesseActuX = (vitesseActuX - commandX)*Math.exp(-Physique.lambda*delta/m);
+        vitesseActuX += commandX;
+        vitesseActuZ += ((alpha-1) + commandZ)*Physique.g;
+
+        
     }
 
     public void attaque(){
diff --git a/MAVENProject/src/main/java/environnement/Coordonnees.java b/MAVENProject/src/main/java/environnement/Coordonnees.java
index 78857cbd2c12c73fbb62e6b9054862408bfaff23..79ac5425456fa6755fbb8b3449af7c7f084b992c 100644
--- a/MAVENProject/src/main/java/environnement/Coordonnees.java
+++ b/MAVENProject/src/main/java/environnement/Coordonnees.java
@@ -1,23 +1,36 @@
 package environnement;
 
-import java.lang.ProcessBuilder.Redirect.Type;
-
+import entity.Character;
 import entity.Entity;
 
 public class Coordonnees {
-    int x;
-    int z;
+    double x;
+    double z;
 
-    public Coordonnees(int x,int z){
-        this.x = x;
-        this.z = z;
+    public Coordonnees(double newX,double newZ){
+        this.x = newX;
+        this.z = newZ;
     }
 
     public static int distance(Object o1,Object o2){
-        //if ((o1 instanceof Entity) || (o2 instanceof Entity))return Math.sqrt(Math.pow(o1.coord.x - o2.coord.x, 2) + Math.pow(o1.coord.y - o2.coord.y,2));
+        //if (((o1 instanceof Entity) || (o1 instanceof Bloc)) && ((o2 instanceof Entity) || (o2 instanceof Bloc)))return Math.sqrt(Math.pow(o1.coord.x - o2.coord.x, 2) + Math.pow(o1.coord.y - o2.coord.y,2));
+        //a retoucher selon le reste du programme
         return 0;
     }
+
     public void testOrdiVerdun(){
+        Entity e = new Character(this, 10,100);
+        e.attaque(); //juste les msg d'erreurs me triggeraient
         System.out.println("test");
     }
+
+    public double getX() {
+        return x;
+    }
+
+    public double getZ() {
+        return z;
+    }
+
+    
 }
diff --git a/MAVENProject/src/main/java/environnement/Physique.java b/MAVENProject/src/main/java/environnement/Physique.java
new file mode 100644
index 0000000000000000000000000000000000000000..340dc8e8b65da780ace7b27cee08165e79895130
--- /dev/null
+++ b/MAVENProject/src/main/java/environnement/Physique.java
@@ -0,0 +1,6 @@
+package environnement;
+
+public class Physique {
+    public static final double g = 9.81; // pesanteur
+    public static final double lambda = 3; // coefficient de frottements
+}
diff --git a/MAVENProject/target/classes/entity/Character.class b/MAVENProject/target/classes/entity/Character.class
index 961cd825e992b33e19ad48ed340b6573797eac2d..3dec24c10c9c1448efe7e302ef63706d72ddde84 100644
Binary files a/MAVENProject/target/classes/entity/Character.class and b/MAVENProject/target/classes/entity/Character.class differ
diff --git a/MAVENProject/target/classes/environnement/Coordonnees.class b/MAVENProject/target/classes/environnement/Coordonnees.class
index b721665537e0d9c15b3ec8b086e1f46c8566c5db..ef4cf4dd0d7862a73273609c012c89c0112e5c0d 100644
Binary files a/MAVENProject/target/classes/environnement/Coordonnees.class and b/MAVENProject/target/classes/environnement/Coordonnees.class differ