[Added] Wall portals

[Graf Zahl]

@Graf Zahl - One thing I noticed when playing around with the wall portals:

Code: Select all • Expand view

Line 14858 (type 156:Line_SetPortal), arg 4 is 1 (should be 0)

Considering that argument 4 is defining the vertical alignment of the portal (floor or ceiling), this message is somehow irritating.

fixed for the next commit.

[Tormentor667]

That was quick, thanks

I also noticed that you can't travel through the portals yet, or am I doing something wrong?

[Major Cooke]

What type do you have?

[Tormentor667]

Visual + simple teleporter

[Graf Zahl]

Sight checking works, too, now, so monsters can attack through portals.

(Oh, and I should have had a look at Eternity before doing this, it would have saved me from several hours of debugging this stuff because I overlooked one small but crucial thing in here... )

[edward850]

I'm a little out of sync with its current development, but are statically linked portals (eternity style) suppose to work at the moment? They just cause the engine to hard-lock when you try to move through them (line tracing is fine).

[Graf Zahl]

What map did you test with?

The last time I ran Vaporware it worked fine. The Polyportal testmap hardlocks indeed, but that's most likely because that case isn't handled yet.
If you got another test map, please give me a link.

[printz]

Do you also have test maps for ZDoom I can test Eternity on? I suppose there's that Gez map, for example.

[edward850]

What map did you test with?

The last time I ran Vaporware it worked fine. The Polyportal testmap hardlocks indeed, but that's most likely because that case isn't handled yet.
If you got another test map, please give me a link.

Sure, I made one myself just to fool around with it: https://www.dropbox.com/s/6az97d6vg2esi ... s.wad?dl=1

[Graf Zahl]

Do you also have test maps for ZDoom I can test Eternity on? I suppose there's that Gez map, for example.

No. So far I used Vaporware, your polyportal test map and Gez's demo map as my main testing material.

[Graf Zahl]

Sure, I made one myself just to fool around with it: https://www.dropbox.com/s/6az97d6vg2esi ... s.wad?dl=1

Thanks, but I think I already found the problem. It got late yesterday evening and I forgot to move the initial portal check for the trace's start position to the proper place. In yesterday's code, if a check originated in a sector with a portal, it could lead to an endless check of the same condition.

[Graf Zahl]

I think that aside from polyportals the feature is complete now. I don't expect it to be completely free of bugs but all the changes to the engine are done now.

[Major Cooke]

Polyportals sounds like the biggest pain of all.

[Nash]

Good work, ZZYZX and Graf Zahl! Thank you for bringing ZDoom closer to Eternity... :D

[Graf Zahl]

Polyportals sounds like the biggest pain of all.

Not really. What they need is some means to modify the link offset table. Printz's test map initializes properly but can't handle the in-game transitions right now because the handling for that table is not in yet.

Right now the biggest issue with line portals in ZDoom is that they do not render the upper and lower texture of the portal line.