HidBar 1.0

// Name:        HidBar
// Author:      Hiddos
// Date:        21st March 2011
// Don't re-release without permission.

#include <a_samp>
#define HITCOLOR 0xFF0000FF
#define MAX_HEALTH_LENGTH 2

new Float:old_hp[MAX_PLAYERS];

public OnPlayerUpdate(playerid)
{
    new Float:new_hp;
    GetPlayerHealth(playerid, new_hp);
    if(new_hp >= old_hp[playerid])
    {
        old_hp[playerid] = new_hp;
        return 1;
    }
    new Text3D:hitbar;
    new Float:Pos[3];
    new string[MAX_HEALTH_LENGTH + 1];
    GetPlayerPos(playerid, Pos[0], Pos[1], Pos[2]);
    format(string, sizeof string, "%i", floatround(old_hp[playerid] - new_hp));
    hitbar = Create3DTextLabel(string, HITCOLOR, Pos[0], Pos[1], Pos[2] + 0.6, 30.0, 0);
    SetTimerEx("UpdateHitBar", 66, 0, "iifffii", _:hitbar, floatround(old_hp[playerid] - new_hp), Pos[0], Pos[1], Pos[2] + 0.8, 16, HITCOLOR);
    old_hp[playerid] = new_hp;
    return 1;
}

public OnFilterScriptInit() for(new i; i < MAX_PLAYERS; i++) GetPlayerHealth(i, old_hp[i]);
public OnPlayerConnect(playerid) old_hp[playerid] = 100.0;

forward UpdateHitBar(Text3D:hitbar, hp, Float:x, Float:y, Float:z, update_no, color);
public UpdateHitBar(Text3D:hitbar, hp, Float:x, Float:y, Float:z, update_no, color)
{
    Delete3DTextLabel(hitbar);
    update_no--;
    if(!update_no) return;

    new string[MAX_HEALTH_LENGTH + 1];
    z += 0.05;
    color -= 12;
    format(string, sizeof string, "%i", hp);
    hitbar = Create3DTextLabel(string, color, x, y, z, 30.0, 0);
    SetTimerEx("UpdateHitBar", 66, 0, "iifffii", _:hitbar, hp, x, y, z, update_no, color);
}