[Patrick]

you need, a include of streamer for that so you can create a 1 checkpoint also because streamer checkpoint is the easiest way to make.

pawn Код:

#include <a_samp>
#include <streamer>

//Definition of CP so it wont give you undefine CP!
new CP; 

public OnGameModeInit()
{
//if you know, how to make 1. it should easy to make more
CP = CreateDynamicCP(Float:x, Float:y, Float:z, Float:size, worldid = -1, interiorid = -1, playerid, Float:distance = 100.0);
return 1;
}

public OnPlayerEnterDynamicCP(playerid, checkpointid)
{
if(checkpointid == CP))
{
//Your dialog code here
}
return 1;
}