03.11.2010, 09:14
You have to have some sort of scripting knowledge to understand complete answers.
For setting the checkpoint: https://sampwiki.blast.hk/wiki/SetPlayerCheckpoint
For disabling the checkpoint after entering: https://sampwiki.blast.hk/wiki/OnPlayerEnterCheckpoint & https://sampwiki.blast.hk/wiki/DisablePlayerCheckpoint
For setting the checkpoint: https://sampwiki.blast.hk/wiki/SetPlayerCheckpoint
For disabling the checkpoint after entering: https://sampwiki.blast.hk/wiki/OnPlayerEnterCheckpoint & https://sampwiki.blast.hk/wiki/DisablePlayerCheckpoint