Commit graph

94 commits

Author SHA1 Message Date
Christoph Oelckers
50d2145ba0 - fixed typo in portal init code. 2016-03-08 09:41:54 +01:00
Christoph Oelckers
3c25b2c066 - some redesign of P_CheckSight to handle portals.
Portal stuff not tested yet.
2016-03-07 21:59:32 +01:00
Christoph Oelckers
5175d56129 - made adjustments to P_LineAttack and P_RailAttack to deal with altered angles by passing through a non-parallel portal.
- fixed: P_FindFloorCeiling set the floorsector for a new ceilingheight.

Note: P_DrawRailTrail still needs to be changed, at the moment rail trails through portals will not work correctly.
2016-03-06 21:58:36 +01:00
Christoph Oelckers
b427f27e3b - fixed: line portal rotations were not set for all types. 2016-03-04 14:09:26 +01:00
Christoph Oelckers
ec258c9588 - redid P_ClipLineToPortal with revised visibility rules:
* any line completely parallel to the portal is rejected
 * any line with one end on the same straight line than the portal is solely decided by the other vertex.
 * any line with both ends behind the portal cannot be visible inside, so there's no need to check for an intersection with the view range.
 * due to the above P_IntersectLines could be removed as it was redundant.
 * for any line that does intersect with the portal straight, do a reverse check: If both ends of the portal lie on the other side of the line than the viewpoint, the line is between viewpoint and portal and needs to be rejected.

This fixes nearly all the phantom wall glitches in the demo map.
2016-03-03 13:07:11 +01:00
Christoph Oelckers
14a0567343 - optimized the portal translation functions by precalculating the rotation angle, sine and cosine. 2016-03-03 11:58:04 +01:00
Christoph Oelckers
6b1485a89f - refactored those unwieldy intercept position calculations into a subfunction. 2016-03-03 02:50:47 +01:00
Christoph Oelckers
63d838c0a7 - fixed: P_CollectConnectedGroups could crash when being called before P_FinalizePortals.
- fixed: Entering a sector portal did not properly set up the starting sector of the cloned trace.
2016-03-03 02:50:44 +01:00
Randy Heit
55142078d8 Normalize line endings 2016-03-01 09:47:10 -06:00
Christoph Oelckers
2584108200 - removed the one-sided line portals on polyobjects only limitation. Using Eternity's polyportal testmap shows that it expects one-sided crossable portals on non-polyobject walls.
- converted the P_TranslatePortal* functions to use floating point trigonometry. The combination of R_PointToAngle and finesine even created discrepancies with perfectly parallel portals which is just not acceptable.
- added a function to FPathTraverse to relocate the trace and restart from the new position.
- made P_UseLines portal aware. Traversal through line portals is complete (all types, even teleporters), whether sector portals need better treatment remains to be seen - at the moment it only checks the range at the player's vertical center.
2016-03-01 01:36:36 +01:00
Christoph Oelckers
07771bd56e - changed parameter of P_GetOffsetPosition to a simple coordinate so that it can be used for other things than actors. 2016-02-29 16:29:51 +01:00
Christoph Oelckers
d4f87203bd - added portal awareness to several functions.
* Arch-Vile resurrection
 * Boom point pushers (due to complete lack of z-handling only for line portals.)
 * A_RadiusGive

These also require a more thorough collection of portal groups than simple position checks.
2016-02-28 23:08:32 +01:00
Christoph Oelckers
b0f1e9b8f3 - fixed typo in portal blockmap code. 2016-02-28 12:16:58 +01:00
Christoph Oelckers
047070d180 - made arbitrary portals passable.
This includes:

* allow one sided portal linedefs to be crossable when part of a polyobject. Due to the limitations, two-sided linedefs won't work here. For general use this is still not allowed because making them passable would require some crippling fudging.
* delay portal finalization until after polyobjects have been spawned.
* the camera interpolation also needs to handle angle differences.

The code is still not 100% complete - the most important thing that is still missing is proper handling of P_CheckPosition through arbitrary portals.
2016-02-27 18:07:39 +01:00
Christoph Oelckers
60c2a55ec4 - added P_GetOffsetPosition calls to all needed functions. 2016-02-26 11:52:53 +01:00
Christoph Oelckers
eafd2519b4 - fixed a few incorrect uses of AngleTo function.
- added portal offsetting to all AproxDistance, AngleTo and Vec*To members of AActor.
- optimized displacement retrieval so that the most common case with no offset retrieves a constant null-vector which can be optimized away fully by the compiler.
- early out in P_GetOffsetPosition if there's no portal lines nearby, so that the common case can skip the traverser completely even on maps with line portals.
2016-02-26 11:52:50 +01:00
Christoph Oelckers
d8d3889452 - removed PortalGroup == 0 check. This would only be valid if there's only linked portals in the map. 2016-02-25 13:36:27 +01:00
Christoph Oelckers
c7bce8b346 - added a special portal blockmap. This only contains all lines which have a crossable line portal assigned. This is to speed up offset calculations because those are quite frequent and would be too inefficient with the full blockmap.
- made some minor changes to FPathTraverse so that the Add*Intercepts methods can be virtually overridden.
- removed the PortalTracer class because in its existing form it was too costly. Replaced with a P_GetOffsetPosition function that does the minimum required work to get to the translated destination and that's better suited for being called from the Vec*Offset methods. Other use cases will require some changes to FPathTraverse anyway, or some wrapping class like the FMultiBlock iterators.
2016-02-25 13:00:23 +01:00
Christoph Oelckers
dc37f78566 - fixed: Old portal data must be deleted before loading a new level. 2016-02-20 02:22:09 +01:00
Christoph Oelckers
cb0e7c6ca5 - fixed some issues with P_FindFloorCeiling rework. 2016-02-20 02:22:08 +01:00
Christoph Oelckers
02d7572343 - some header dependency cleanup so that it is no longer needed to include portal.h to get the inline functions. Portal.h has been reduced of most dependencies now so that including it is cheap and can be done in other headers.
- some consolidation in p_map.cpp. PIT_CheckLine and PIT_FindFloorCeiling had quite a bit of redundancy which has been merged.
- čontinued work on FMultiBlockLinesIterator. It's still not completely finished.
2016-02-19 14:08:41 +01:00
Christoph Oelckers
3841a5f626 - implemented FMultiBlockLinesIterator for checking a position across portals. This is not fully tested yet. 2016-02-19 10:39:40 +01:00
Christoph Oelckers
1b88052bba - started refactoring ZatPoint calls which need to be portal aware.
To summarize, anything that just works with map geometry doesn't need to bother, as does the renderer. (i.e. nearly all r_* files, p_floor.cpp, p_ceiling.cpp et.al)
But all calls that are somehow related to actor positions need to be made aware of potential portal transitions:

 * added FloorAtPoint, CeilingAtPoint and PlaneAtPoint methods to sector_t, which can be used to calculate a plane's height with relation to a given actor, even if that actor is on the other side of a portal.
 * added HighestCeilingAt and LowestFloorAt methods which traverse all ceiling/floor portals until they find an impassable plane.
2016-02-16 16:40:53 +01:00
Christoph Oelckers
22e8678903 - refactored P_CollectConnectedGroups to avoid frequent heap allocations for the common cases
* the temporary checking arrays are now static
 * the array that gets the returned values only starts allocating memory when the third touched sector group is found. The most common cases (no touched portal and one touched portal) can be handled without accessing the heap.

- did some streamlining of AActor::LinkToSector:

 * there's only now version of this function that can handle everything
 * moved the FIXMAPTHINGPOS stuff into a separate function.
 * removed LinkToWorldForMapThing and put all special handling this function did into P_PointInSectorBuggy.
2016-02-16 12:51:10 +01:00
Christoph Oelckers
b9037ef3ee - added a check to detect self-referencing sectors in the portal setup code because those are problem cases. 2016-02-15 21:49:46 +01:00
Christoph Oelckers
f24bf7e622 - separated FCheckPosition and its FPortalGroupTable substructure into its own header because this was creating too many dependencies on other headers with FCheckPosition in p_local.h and FPortalGroupTable in portals.h. 2016-02-15 13:40:31 +01:00
Christoph Oelckers
5664cee2e5 - fixed: The check for leftover portal sectors was not correct. It only checked the sectors the portal thing was in and those were already processed in the first phase.
- improved: If there's an offset mismatch, do not print group numbers as they are utterly meaningless. Instead look for a sector in each group and report those.
- added a copyright notice and some comments to portals.cpp.
2016-02-15 12:35:40 +01:00
Christoph Oelckers
6adb069506 - rewrote p_local.h so that it doesn't pull in the entire bunch of headers.
This was to resolve some circular dependencies with the portal code.
The most notable changees:

 * FTextureID was moved from textures.h to doomtype.h because it is frequently needed in files that don't want to do anything with actual textures.
 * split off the parts from p_maputl into a separate header.
 * consolidated all blockmap related data into p_blockmap.h
 * split off the polyobject parts into po_man.h
2016-02-15 02:14:34 +01:00
Christoph Oelckers
405db83393 - added a function which collects all portal group an actor would touch if standing in a given position. 2016-02-15 00:53:59 +01:00
Christoph Oelckers
126c80d597 - create the portal group table. 2016-02-14 18:16:59 +01:00
Christoph Oelckers
d5a1004c41 - some preparations for portal stuff:
* set up linked sector portals so that everything that will eventually have to be considered is present, even though the software renderer currently can't handle those adequately.
* tag all skybox things with a type so that they can easily be distinguished at run time.
* fill in the linked portal types in xlat/eternity.txt.
2016-02-14 13:12:03 +01:00
Christoph Oelckers
20aa7c75de - added the case '0: switch the portal of to P_ChangePortal. 2016-02-07 00:30:27 +01:00
Christoph Oelckers
77b9f41dff - added Line_SetPortalTarget action special so that portals can be assigned new targets. Setting the target to 0 disables the portal.cpp. Static linked portals can not be reassigned.
Please note that these still require the portal to be set up in the map with Line_SetPortal. It will not create a new portal if none exists on any line with the given ID.
2016-02-06 21:16:57 +01:00
Christoph Oelckers
d76bcee393 - added some line portal restrictions:
* linked portals may never have a z-offset so the parameter for that needs to be ignored.
* for interactive portals, handling z-displacements when some distance calculation reaches through a portal is way too extensive and problematic to ever have a chance of really working. If such a portal gets defined it will be changed to a teleport-only portal and a message printed.
2016-02-06 05:16:35 +01:00
Christoph Oelckers
ed7b7fc0ba - fixed: The backlink portal for EE-style definition needs to be done along with the first portal because the code won't find the anchor line itself. 2016-02-06 00:21:44 +01:00
Christoph Oelckers
94b7ef72ca - more cleanup on portal implementation:
- store portal data in a separate structure.
- store portal data in savegames because some of this will be changeable later.
- run a cleanup pass after all portals have been created to weed out broken ones.
- add a definition type that's compatible with Eternity Engine's line portal types.
- swapped arg[2] and arg[3] of Line_SetPortal, because the type is more significant than the alignment.
2016-02-05 23:15:56 +01:00
Christoph Oelckers
9eaefc3685 - initialize portals with all other static line specials instead of doing it separately in P_FinishLoadingLineDefs when the map isn't fully set up yet.
- replace all float use in portal.cpp with doubles.
2016-02-05 16:58:57 +01:00
Christoph Oelckers
a85a8c1465 - changed mirror handling so that it works without attaching a portal to the mirror line and removed line_t::portal_mirror member.
- did some cleanup on the portal interface on linedefs: All checks should go through isLinePortal (gameplay related) and isVisualPortal (renderer related) which then can decide on the actual data what to return.
- removed portal_passive because it won't survive the upcoming refactoring.
- removed all direct access to portal members of line_t.
- always use the precise (and fast) version of P_PointOnLineSide inside the renderer.
2016-02-05 16:14:45 +01:00
Christoph Oelckers
00895c245e - mpved all software renderer specific code for the portals into the render sources. 2016-02-05 15:39:06 +01:00
Christoph Oelckers
6639984772 - removed Line_SetVisualPortal special. This will be folded into Line_SetPortal later 2016-02-05 14:24:20 +01:00
ZZYZX
605fce9008 Fixed skybox clipping: things in a skybox shouldn't be clipped against current portal. Fixed: portal inside of a skybox sets CurrentPortalInSkybox to false. 2016-01-10 05:45:26 +02:00
ZZYZX
4d518a220c Fixed skybox clipping: lines in a skybox shouldn't be clipped against current portal 2016-01-10 05:22:33 +02:00
ZZYZX
d0df4c1744 Upgraded the portal code to work with the new tagManager system. Was uncompilable 2015-06-07 21:27:20 +03:00
ZZYZX
31cad858d9 Fixed odd merge bugs 2015-06-07 20:54:36 +03:00