Castle screen, active area of the swordmen's dwelling encroaches on the active area of the mage guild

[LeHerosInconnu]

Preliminary checks

• I've checked that there aren't other open issues on the same topic.
• I've checked that this issue is reproducible on the latest snapshot build.

Platform

Windows

Describe the bug

In fheroes2, the active area of the swordmen's dwelling encroaches on the active area of the mage guild.

In fheroes2:

2024-12-22.16-47-14.mp4

Save file

Here is the save file:
Swordman dwelling over mage guild 01.zip

Additional info

No response

[oleg-derevenetz]

As far as I understand, this cosmetic issue is caused by the fact that the active zones of castle buildings are rectangles, and this particular dwelling has a more complex shape. Its active zone rectangle is currently oriented in height to the highest point of its roof. Of course, height of the active zone can be reduced, but then it will not capture the upper part of the dwelling's roof.

[LeHerosInconnu]

Question:
Wouldn't it be possible to automatically determine the active area based on the non-transparent pixels of each building's sprite?
The transparent pixels inside the area defined by the pixels forming the edge of the area would be added to the area to form a regular area (without holes).

[oleg-derevenetz]

Wouldn't it be possible to automatically determine the active area based on the non-transparent pixels of each building's sprite?
The transparent pixels inside the area defined by the pixels forming the edge of the area would be added to the area to form a regular area (without holes).

I'm not an expert on castle rendering, but in my opinion there will be separate problems with this approach, because building sprites are often not only the buildings themselves, but also various connections (roads, bridges, and so on) which may be quite far from the building itself (for instance, AFAIK, this is the case for the Den dwelling in the Barbarian castle). You must admit that it would be strange to click on a section of road and enter a building instead.