The Symmetry.Mirror enum was previously documented as defined in terms
of the WPos system, which happens to align with CPos for Rectangular
grid types. However, the existing code gets confused when attempting
to support RectangularIsometric, due to a lack of appropriate
conversion logic.
This change makes Mirror agnostic to specific coordinate systems and
introduces a WMirror wrapper that provides getters for the correct
Mirror configuration given the coordinate system being used.
This change lifts large portions of ExperimentalMapGenerator's logic
into a new "Terraformer" class with highly documented methods that can
theoretically be used by alternative map generator classes. Some
additional refactoring may occur in future, subject to the practical
needs of additional map generators. ClearMapGenerator is also
simplified.
This is not a pure refactor and contains some algorithmic and
behavioral changes, as well as few minor bug fixes. Notably:
- The logic for obstructing unreachable water has been somewhat
replaced.
- In CnC, where water is already unplayable, EMG no longer obstructs
water. (RA still does, as water is playable there.)
- Mountain (cliff) generation is now somewhat more effective. This
increases the number of cliffs seen on many presets. Settings should
no longer use "Mountains: 1000".
- PlayableSpace logic has been consolidated into Terraformer.
- PlayableSpace.Playability no longer exists as PartiallyPlayable
became redundant. Its uses have been replaced with a simple
boolean. Consequently, some defunct code and configuration has been
removed.
- Adjust MultiBrush replaceability contract painting behavior to be
more intuitive.
- Fix off-by-one error in map bounds computation.
- Fix some usages of mixed up MersenneTwisters.
Removes all use of floating point from the RaMapGenerator map generator
and its dependencies.
Floating point behavior is potentially non-portable across client
hardware. Removing them should make the map generation logic
consistent even across clients with different floating point hardware
or compiler behavior. This may be useful for sync-safe multiplayer map
generation where clients independently generate the map from settings.
Most previously fractional public-facing settings are now represented
as numbers out of 1000, with some exceptions using 1000000. Most
internal logic which relies on fixed-point concepts now uses 1024ths,
though some floating point mechanisms have been replaced with
alternative discrete approximations (e.g. gaussian to binomial).
Add an experimental procedural map generator for the Red Alert mod,
along with supporting code that may assist in the development of map
generators for other mods.
Map generation may be accessed as a tool in the Map Editor. This change
does not presently introduce direct lobby options for generated maps.
Features:
- Terrain with land, water, beaches, cliffs, roads, debris, and trees.
- Placement of mpspawns, neutral buildings, and resources.
- Rotational and mirror symmetry options.
- Various configurable parameters with presets.
- Deterministic with configurable seed.
- Performant.
