public static void setUniform()
 {
     getDistrib = getUniform;
 }
 public static void setNormal()
 {
     getDistrib = getNormal;
 }
 public static void setErlang()
 {
     getDistrib = getErlang;
 }
 public static void setTriangle()
 {
     getDistrib = getTriangle;
 }
 void Awake()
 {
     getDistrib = getUniform;
 }