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How can I give a player, for example, sulfur, using scripts? There are two commands: SetPlayerResources and ChangePlayerResources, or something like that. In both cases, this happens: for example, I set the script to give 10 crystals, but the player already has 20. When the script is "activated," the player ends up with 10 crystals.
You probably messed up the script – I suspect that the computer is giving your player 10 crystals because that's exactly what you wrote in the script. ;)
Post the source code.