- AMBUSH flag on nodes makes them blind and untargetable when getting `startnode` and `goalnode` for `FindPath()`. This is useful for indicating a node should be skipped when tele/portaling, so the current path can be preserved.
- Setup is simple: place nodes behind lines that tele/portal entities and mark them as AMBUSH.
Other changes:
- Restored global array since blockmap is not a viable option here.
- Added MAPINFO `pathing` flag which enables pathing by default.
- Added NOPATHING flag to disable pathing entirely, useful for maps that have pathing enabled.
- Added `ReachedNode(Actor mo)` virtual, responsible for handling node traversal.
- Nodes now make use of MeleeRange to limit their sight checking functions.
View offsets are now added after the base position and angles (accounting for interpolation) are calculated. Behavior was centralized into a singular tracer that all view offsets now use to prevent clipping out of the map. Cleaned up camera rendering behavior. Angles are now properly normalized after all offsetting is accounted for. The chase cam can now update in real-time instead of forcing interpolation.
Guarantees a collision happened unlike CanCollideWith. Called in TryMove so it only calls when an actual movement was attempted and not just a potential positional check.
Localized reflection code to a single function. Fixed an error where NOSHIELDREFLECT was being checked on the wrong Actor. Fixed an oversight where MIRRORREFLECT was checking for valid target despite not needing one.
- Offset: The offset from the actor's view to move the camera about.
- Flags: (Default is -1, which means don't change flags)
- VPSF_ABSOLUTEOFFSET: Don't include actor angles in calculation.
- VPSF_ABSOLUTEPOS: Position is absolute, and disables all transformations. Modders are responsible for being portal aware!
Notes:
- `ViewPos` in Actor will be `null` until A_SetViewPos is called for the first time.
**Issues:**
- Hiding sprite while in portal incomplete.
* added handlers for the missing upper flags in the first flag word.
* refactored some code related to MF_BOUNCES to adapt to other flags' changes to avoid constant property updates for too many flags.
* treat anything with RF_ZDOOMTRANS as non-translucent for the purpose of the flag checks.
