Update to "Modify cmake files and add comments in the code"

DanielChappuis/reactphysics3d@7432a871496e185b
793351a7c251b45b7bf68424

Author: DDoS

src/main/java/org/spout/physics/body/RigidBody.java

@@ -340,7 +340,7 @@ public void applyForceToCenter(Vector3 force) {
     }
 
     /**
-     * Applies an external force to the body at a given point (in world-coordinates). If the point is not at the center of gravity of the body, it will also generate some torque and therefore, change
+     * Applies an external force to the body at a given point (in world-space coordinates). If the point is not at the center of gravity of the body, it will also generate some torque and therefore, change
      * the angular velocity of the body. If the body is sleeping, calling this method will wake it up. Note that the force will be added to the sum of the applied forces and that this sum will be
      * reset to zero at the end of each call of the {@link org.spout.physics.engine.DynamicsWorld#update()} method.
      *

src/main/java/org/spout/physics/engine/Material.java

@@ -36,8 +36,8 @@ public class Material {
     private float mBounciness;
 
     /**
-     * Constructs a new rigid body material using {@link ReactDefaults#DEFAULT_BOUNCINESS} as the default bounciness and {@link ReactDefaults#DEFAULT_FRICTION_COEFFICIENT} as the default
-     * friction coefficient.
+     * Constructs a new rigid body material using {@link ReactDefaults#DEFAULT_BOUNCINESS} as the default bounciness and {@link ReactDefaults#DEFAULT_FRICTION_COEFFICIENT} as the default friction
+     * coefficient.
      */
     public Material() {
         mBounciness = ReactDefaults.DEFAULT_BOUNCINESS;
@@ -75,7 +75,7 @@ public float getBounciness() {
     }
 
     /**
-     * Sets the bounciness.
+     * Sets the bounciness. The bounciness should be a value between 0 and 1. The value 1 is used for a very bouncy body and zero is used for a body that is not bouncy at all.
      *
      * @param bounciness The bounciness
      */
@@ -96,7 +96,7 @@ public float getFrictionCoefficient() {
     }
 
     /**
-     * Sets the friction coefficient.
+     * Sets the friction coefficient. The friction coefficient has to be a positive value. The value zero is used for no friction at all.
      *
      * @param frictionCoefficient The coefficient to set
      */