[Scummvm-tracker] [ScummVM :: Bugs] #15292: AGS: Incorrect Use of Bitwise XOR Operator in Distance Calculation

ScummVM :: Bugs trac at scummvm.org
Thu Jul 25 03:44:55 UTC 2024


#15292: AGS: Incorrect Use of Bitwise XOR Operator in Distance Calculation
--------------------+-------------------------
Reporter:  RainRat  |      Owner:  (none)
    Type:  defect   |     Status:  new
Priority:  low      |  Component:  Engine: AGS
 Version:           |   Keywords:
    Game:           |
--------------------+-------------------------
 scummvm/blob/master/engines/ags/shared/util/geometry.cpp:

 The function DistanceBetween in this code uses the bitwise XOR operator
 (`^`) instead of the multiplication operator (`*`) when calculating the
 square of distances. This results in incorrect distance calculations.

 Current Code:
 {{{
 return static_cast<float>(std::sqrt((inner_width ^ 2) + (inner_height ^
 2)));
 }}}


 Expected Code:
 {{{
 return static_cast<float>(std::sqrt(inner_width * inner_width +
 inner_height * inner_height));
 }}}
-- 
Ticket URL: <https://bugs.scummvm.org/ticket/15292>
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