[Solved] Function starts giving Wrong Results

Solved:

trouble-operating-returnvalue_p1064184?#p1064184

Problem Description

After triggering a chain of functions that does literally nothing, the one function that does an actual thing quits giving the right result.

Attach a Capx

https://filebin.net/g3iiun5rydcxsar7

Description of Capx

A function "Zéro" changes its return value twice: first to 100, then under a specific condition to 0. the final result is displayed onscreen.

When pressing Space, a function "Wreck" is called, it then calls another function which does nothing.

Expected Result

The condition to change Zéro()'s result 0 should always be right and thus, the function Zéro() should always return 0

Steps to Reproduce Bug

After running the project, simply press Space to call Wreck().

-> The result of Zéro() changes to 100, and remains this way.

Observed Result

• The event 2 needs to be comparing Function.ReturnValue in order for the bug to happen.
• The function called by Wreck() doesn't need to exist, but there need to be at least two chained calls.

Affected Browsers

• Chrome: (YES)
• FireFox: (YES)
• Edge: (YES)

Operating System and Service Pack

Windows 10

Construct 2 Version ID

r233

Way i understood functions so far .... Function.ReturnValue has only a meaning outside the function, and it is the return from the last function call. Its gets set on 'leaving the function'.

If i am correct, then you can not use it that way. Have to make a local variable and, evaluate that one, and set the return based on the outcome.

Exactly. That's how functions work.

You can change the return value during the function's events

but when you call a function, the expected return value is

the last operation that happened to it in a function block,

Closing as 99Instances2Go is right, the return value is set by the last completing function, it does not access the current function's return value.