#define MAXPLAYERS 32
#define SECDIST 230	//Sensitivity, may need to be adjusted
#define MAXOFFENCE 700 //Sensitivity, may need to be adjusted

new gmaxplayers;
new g_OldPos[3][MAXPLAYERS+1];
new g_Detections[MAXPLAYERS+1];
new g_Warning[MAXPLAYERS+1];

public plugin_init()
{
	set_timer("check_speedhack",1.0,99999,"");
	
	gmaxplayers = maxplayercount();
}

public plugin_connect(. ..)
{
	// we need "id" (index of user) as a 2nd PARAM;
	g_OldPos[0][id] = 0;
	g_OldPos[1][id] = 0;
	g_OldPos[2][id] = 0;
	
	// also index is "id" 
	g_Detections[id] = 0;
	g_Warning[id] = 0;
}

public check_speedhack()
{
	for(new i=1; <= gmaxplayers; i++)
	{
		// num to str i;
		// not sure if exists, but a check for is user alive ? (pursupose exists)
		if(is_user_alive(i) )
		{
			new origin[3];
			new oldorigin[3];
			new dist;
			
			//Get origins
			// I don't know exactly how to get get_userorigin in correct way, but this i used on my AMXX Plugin
			get_user_origin(i, origin);
			oldorigin[0] = g_OldPos[0][i];
			oldorigin[1] = g_OldPos[1][i];
			oldorigin[2] = g_OldPos[2][i];
			
			// another problem i don't know if exists a function to get distance between 2 origins
			// in amxx exists, is called "get_distance(org1,org2)
			// pursopose exists
			dist = get_distance(origin, oldorigin);
			
			if (dist > SECDIST)
				g_Detections[i] = g_Detections[i] + dist - SECDIST;
				
			// not really required, but it's a good point to check if user is on buyzone
			// i know, in adminmod doesen't exists a function like that ( exits ? )
			if(is_user_in_buyzone(i) ) 
			{
				clearSpecificAlertValue(i);
			}
			
			
			if (g_Detections[i] > SECDIST)
			{
				g_Warning[i]++
				if (g_Warning[i] > 1)
					if (g_Detections[i] > MAXOFFENCE)
						RegisterOffense(i)
			}
			
			g_OldPos[0][i] = origin[0]
			g_OldPos[1][i] = origin[1]
			g_OldPos[2][i] = origin[2]
		}
		
		else
		{
			clearSpecificAlertValue(i)
		}
	}
		
}

public clearSpecificAlertValue(id)
{
	g_Detections[id] = 0;
	g_Warning[id] = 0;
}
	
			
public RegisterOffense(...)
{
	// log the player or something;
	
	// a good to punish players;
	// do a loop, check if no admin on server and ban player
	// if exits an admin on server, just print a message to chat
}