If terrain/grass/road surface is higher, the player is aiming at ground over/near water, not the water itself.
См. определение в файле CCTLiquid.c строка 982
983 {
985 return false;
986
988 return false;
989
990 if (hitPosition[1] >= liquidSurfacePos[1])
991 return false;
992
993 vector nonWaterSurfacePos;
995 {
997 if (nonWaterSurfacePos[1] > liquidSurfacePos[1])
998 return false;
999 }
1000
1001 return true;
1002 }
bool IsNearlyZero(vector value)
bool TryGetNonWaterSurfaceAt(vector probePosition, out vector surfacePosition)
Перекрестные ссылки IsNearlyZero() и TryGetNonWaterSurfaceAt().
Используется в CheckSurfaceLiquid() и TryValidateHitCursor().