[Feature Request] Multiplayer battlescape/geoscape HUD improvements

[NonPolynomialTim]

**EDIT: Battlescape HUD agreed to be scrapped, geoscape HUD to show player names in matching activity marker colors only. Player name/marker colors should be X-COM-appropriate (e.g. not bright and playful like in the mock-ups below)

I was thinking about adding a non-trivial amount of multiplayer-focused HUD for the battlescape, and a small addition to the geoscape. Since this branched off of the discussion on this issue about avatars: if we add more support for avatars then these would use avatars, otherwise they could just use player names.

[TheYellowArchitect]

It's a good idea but only practical for a 4-players campaign imo
Also if implemented, make it a config boolean or enum because the color line and the avatar icon are too much for me at least. The stark contrast with black, and being top-left (eye-important area), with the bottom UI clogged as well is too much imo
Enum instead of boolean because someone may want to straight up disable it.

That said, that soldiers health UI at 2nd image is so good. Minimalistic information done at its best 👌

[xcomcoopdev]

Hi, I think this change might move the game too far away from the original UFO Defense. We should keep the changes as small as possible.

I do not think we should use avatars at all. They do not add much value for players, so it would be better to use only player names and keep things simple.

The player names could be colored in both the lobby and the chat. I do not think there is any need to show player names in Geoscape. If player names are shown in Geoscape, they should only be shown when there are three or four players.

There is not enough space for the chat in the top-left corner of the screen.

[NonPolynomialTim]

That makes sense. This is a pretty large divergence from original X-COM. I'll update the initial description to drop the battlescape changes, but I do think player names only on the geoscape makes sense to be able to match up the player activity markers to know who to yell at when everybody is waiting on that one person. Current palette is just randomly grabbed colors, but the actual implementation should pick more X-COM-appropriate colors, less Cocomelon-appropriate colors