[dajiaohuang]

Problem

MapFunctions::newMap(true) constructs a map using Settings::mapSize, and point indexing/boundary checks use that same size. However, TerrainGenerator::generateTerrain uses the separate TerrainSettings::mapSize default of 128.

With the supported Game.MapSize set to 32, the map consequently receives 16,384 nodes instead of 1,024. The node vector's coordinate stride no longer agrees with Point::toIndex() or the map dimensions. This is reproducible through the production MapFunctions API, without malformed save files or out-of-range coordinates.

Change

Generate terrain using the configured map size already used by the owning map and point operations. Add a regression checking node count and the final coordinate for a 32x32 map. This does not implement the separate terrain-generation dialog in #975.

Validation

• Base reproduction: 16,384 nodes for a configured 32x32 map. Fixed: 1,024 nodes, last coordinate (31,31).
• Isolated offscreen workflow exercises new flat/procedural maps, tile placement/demolition, pixel hit selection, elevation/leveling, and saving/loading its own generated map.
• Linux GCC 13 Debug build; CTest 55/55 passed in a combined validation tree with independent font-setting/empty-load-dialog fixes.
• Locally extracted Ubuntu SDL2/libnoise dependencies; local include-layout adapter for existing fix(cmake): FindLibNoise: correct include dir, support Debian/Ubuntu header layout #1130. Optional audio, Angelscript and microprofile disabled. No Windows/macOS, Conan or interactive desktop visual acceptance.