[SilentSoul]

https://sampwiki.blast.hk/wiki/IsPlayerInRangeOfPoint
Find the Float:z also..

Example

pawn Код:

if(IsPlayerInRangeOfPoint(playerid, 20.0, -1575.50,720.000, z))

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pawn Код:

if(IsPlayerInRangeOfPoint(playerid, range, Float: x,Float: y, Float: z))

playerid The ID of the player.
Float:range The furthest distance the player can be from the point to be in range.
Float: x The X coordinate of the point to check the range to.
Float: y The Y coordinate of the point to check the range to.
Float: z The Z coordinate of the point to check the range to.