#define SLOTS 200 

enum SavePlayerPosEnum { 
Float:LastX, 
Float:LastY, 
Float:LastZ 
} 
new SavePlayerPos[SLOTS][SavePlayerPosEnum]; 
new Text:Speedo[SLOTS]; 
new UpdateSeconds; 
new CarName[][] = 
{ 
    "Landstalker", "Bravura", "Buffalo", "Linerunner", "Perrenial", "Sentinel", 
        "Dumper", "Firetruck", "Trashmaster", "Stretch", "Manana", "Infernus", 
        "Voodoo", "Pony", "Mule", "Cheetah", "Ambulance", "Leviathan", "Moonbeam", 
    "Esperanto", "Taxi", "Washington", "Bobcat", "Whoopee", "BF Injection", 
        "Hunter", "Premier", "Enforcer", "Securicar", "Banshee", "Predator", "Bus", 
        "Rhino", "Barracks", "Hotknife", "Trailer", "Previon", "Coach", "Cabbie", 
        "Stallion", "Rumpo", "RC Bandit", "Romero", "Packer", "Monster", "Admiral", 
        "Squalo", "Seasparrow", "Pizzaboy", "Tram", "Trailer", "Turismo", "Speeder", 
        "Reefer", "Tropic", "Flatbed", "Yankee", "Caddy", "Solair", "Berkley's RC Van", 
        "Skimmer", "PCJ-600", "Faggio", "Freeway", "RC Baron", "RC Raider", "Glendale", 
        "Oceanic","Sanchez", "Sparrow", "Patriot", "Quad", "Coastguard", "Dinghy", 
        "Hermes", "Sabre", "Rustler", "ZR-350", "Walton", "Regina", "Comet", "BMX", 
        "Burrito", "Camper", "Marquis", "Baggage", "Dozer", "Maverick", "News Chopper", 
        "Rancher", "FBI Rancher", "Virgo", "Greenwood", "Jetmax", "Hotring", "Sandking", 
        "Blista Compact", "Police Maverick", "Boxvillde", "Benson", "Mesa", "RC Goblin", 
        "Hotring Racer A", "Hotring Racer B", "Bloodring Banger", "Rancher", "Super GT", 
        "Elegant", "Journey", "Bike", "Mountain Bike", "Beagle", "Cropduster", "Stunt", 
        "Tanker", "Roadtrain", "Nebula", "Majestic", "Buccaneer", "Shamal", "Hydra", 
        "FCR-900", "NRG-500", "HPV1000", "Cement Truck", "Tow Truck", "Fortune", 
        "Cadrona", "FBI Truck", "Willard", "Forklift", "Tractor", "Combine", "Feltzer", 
        "Remington", "Slamvan", "Blade", "Freight", "Streak", "Vortex", "Vincent", 
    "Bullet", "Clover", "Sadler", "Firetruck", "Hustler", "Intruder", "Primo", 
        "Cargobob", "Tampa", "Sunrise", "Merit", "Utility", "Nevada", "Yosemite", 
        "Windsor", "Monster", "Monster", "Uranus", "Jester", "Sultan", "Stratium", 
        "Elegy", "Raindance", "RC Tiger", "Flash", "Tahoma", "Savanna", "Bandito", 
    "Freight Flat", "Streak Carriage", "Kart", "Mower", "Dune", "Sweeper", 
        "Broadway", "Tornado", "AT-400", "DFT-30", "Huntley", "Stafford", "BF-400", 
        "News Van", "Tug", "Trailer", "Emperor", "Wayfarer", "Euros", "Hotdog", "Club", 
        "Freight Box", "Trailer", "Andromada", "Dodo", "RC Cam", "Launch", "Police Car", 
        "Police Car", "Police Car", "Police Ranger", "Picador", "S.W.A.T", "Alpha", 
        "Phoenix", "Glendale", "Sadler", "Luggage", "Luggage", "Stairs", "Boxville", 
        "Tiller", "Utility Trailer" 
};

SetTimer("UpdateSpeed", 2000, 1);

public OnPlayerStateChange(playerid, newstate, oldstate){ 
    if(newstate == PLAYER_STATE_ONFOOT){ 
        TextDrawHideForPlayer(playerid, Speedo[playerid]); 
     } 
return 1; 
} 

public UpdateSpeed(){ 
        new Float:x,Float:y,Float:z; 
        new Float:distance,value,string[256]; 
        new Float:health; 
        for(new i=0; i<SLOTS; i++) 
        { 
                if(IsPlayerConnected(i) && IsPlayerInAnyVehicle(i)) 
                { 
                        TextDrawDestroy(Speedo[i]); 
                } 
        } 

        for(new i=0; i<SLOTS; i++) 
        { 
                if(IsPlayerConnected(i) && IsPlayerInAnyVehicle(i)) 
                { 
                        GetPlayerPos(i, x, y, z); 
                        GetVehicleHealth(GetPlayerVehicleID(i), health); 
                        distance = floatsqroot(floatpower(floatabs(floatsub(x,SavePlayerPos[i][LastX])),2)+floatpower(floatabs(floatsub(y,SavePlayerPos[i][LastY])),2)+floatpower(floatabs(floatsub(z,SavePlayerPos[i][LastZ])),2)); 
                        value = floatround(distance * 5000); 
                        if(UpdateSeconds > 1) 
                        { 
                                value = floatround(value / UpdateSeconds); 
                        } 
                        format(string,sizeof(string),"~g~Vehicle : ~w~%s ~n~~b~MPH : ~w~%d / ~b~KM/H : ~w~%d ~n~~r~Vehicle Health:~w~ %.2f",CarName[GetVehicleModel(GetPlayerVehicleID(i))-400],floatround(value/1600),floatround(value/1000),health); 
                        Speedo[i] = TextDrawCreate(320.00, 380.00, string); 
                        TextDrawSetOutline(Speedo[i], 0); 
                        TextDrawFont(Speedo[i], 3); 
                        TextDrawSetProportional(Speedo[i], 2); 
                        TextDrawAlignment(Speedo[i], 2); 
                        TextDrawShowForPlayer (i, Speedo[i]); 
                } 
                SavePlayerPos[i][LastX] = x; 
                SavePlayerPos[i][LastY] = y; 
                SavePlayerPos[i][LastZ] = z; 
        } 
}