Fixes a crash which happens when trying to generate very large maps,
such as 256x256.
```
Exception of type `System.IndexOutOfRangeException`: Index was outside the bounds of the array.
at OpenRA.Mods.Common.MapGenerator.MatrixUtils.CalibrateQuantileInPlace(Matrix`1 matrix, Int32 target, Int32 count, Int32 outOf) in /home/ashley/devel/OpenRA/OpenRA.Mods.Common/MapGenerator/MatrixUtils.cs:line 719
at OpenRA.Mods.Common.Traits.RaMapGenerator.Generate(Map map, MiniYaml settings) in /home/ashley/devel/OpenRA/OpenRA.Mods.Common/Traits/World/RaMapGenerator.cs:line 755
...
```
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).
Updates the random map generator to produce more elaborate roads:
- Roads extend beyond map bounds.
- Shorter, unviable roads are pruned and merged to create longer roads.
- Roads can loop.
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.
