[mendax]

pawn Code:

TogglePlayerHUD(playerid, part, toggle);
NPCFollowPlayer(npcid, playerid);
NPCUnfollowPlayer(playerid);
NPCFollowVehicle(npcid, vehicleid);
NPCUnfollowVehicle(npcid);
boneid to OnPlayerGiveDamage & OnPlayerTakeDamage

Parts:
HUD_HEALTH,
HUD_ARMOR,
HUD_MONEY etc.