[Spiral]

Hey, so I was making a simple checkpoint system for my server, but I got a problem. If I create a checkpoint, using SetPlayerCheckpoint, how do I see that the player entered the specified checkpoint? I want it to be like this, if a player enters this checkpoint:

pawn Код:

SetPlayerCheckpoint(playerid, -1546.3070,2651.5574,55.4233, 3.0);

It will disable this checkpoint using DisablePlayerCheckpoint and make this checkpoint:

pawn Код:

SetPlayerCheckpoint(playerid, -1481.1399,2670.2441,55.4200, 3.0);

How could I do this? Any explanations?