Closing a scripted exit patched game when system messages is shown doesn't work

[KKhanhH]

In CCLCC: Game crashes
In CHLCC: Game exit never works again

[dendi2008]

I think, I understand what's going wrong. So, in C;C PC port, when another system message is shown and then user trying to exit game, currently opened system message closes and exit system message appears, but in impacto it just "invisibly" overlaps currently opened system message. This is for CCLCC, for CHLCC pretty much the same, but it needs some additional changes.

[Enorovan]

Handled by CommitteeOfZero/coalesc3#11

[Enorovan]

Handled by coalesc3 script patching from which the feature originates to a satisfying degree.

[KKhanhH]

While the coalesc3 works as a temporary workaround, it permanently hides the existing system messages if you cancel exiting, which could hide an error or maybe break some script stuff. A better solution would make use of what is probably the mes window id argument on CC instruction set, and maybe on CHLCC detect whether a shown sys mes window exists and use a different ID for it.