Floating player on water

Hi 4 all i want to add some code to the player to floating the player when he get into the water like

function Armor::onEnterLiquid(%this, %obj, %coverage, %type)
{
   switch(%type)
   {
      case 0: //Water

       // some code here to floating the player on the water

      case 1: //Ocean Water
      case 2: //River Water
      case 3: //Stagnant Water
      case 4: //Lava
         %obj.setDamageDt(%this, $DamageLava, "Lava");
      case 5: //Hot Lava
         %obj.setDamageDt(%this, $DamageHotLava, "Lava");
      case 6: //Crusty Lava
         %obj.setDamageDt(%this, $DamageCrustyLava, "Lava");
      case 7: //Quick Sand
   }
}