Biome Brush

[1.0.0] - 2026-06-21
Added:
- Initial release. A Biome Brush tab on the Random Gen world-generation screen (and a biomebrush console window in-game) for painting a world's biome layout before it generates. Terrain, POIs, and roads stay vanilla RWG; only the biomes follow the painting.
- Six brushes: Forest, Desert, Snow, Wasteland, Burnt Forest, and Water.
- Painting water carves real lakes/oceans: the terrain is lowered below sea level with natural, varied shorelines (gentle beaches and steep cliffs), and cities/POIs/roads stay off the water.
- A live brush-outline cursor on the canvas that resizes with the -/+ buttons.
- Save + Apply arms the painting; unarmed runs generate a normal RWG world.
- Spawn in forest with fallback - you always start in forest, or the next available biome (burnt forest, then desert, then snow, then wasteland).
- Trader randomization: an optional toggle to randomly assign which trader spawns at each trader location, plus a per-trader checklist to exclude any trader from the world. Reproducible per seed; off by default; traders only (never the terrain or other POIs).

[1.2.0] - 2026-06-22
Added:
- Height brush. A new Mode toggle on the world-gen tab swaps the palette between biomes and five elevation levels (Lowland, Plains, Hills, Mountains, Peak). Paint elevation onto a separate layer and the generated terrain follows it, with smooth natural slopes. Cities and roads avoid painted mountains and settle in painted lowlands.
- See-through height canvas. In Height mode the elevation is drawn semi-transparently over your biome map, so you can paint elevation aligned to the biomes you already painted instead of painting blind.
- The biome and height layers are independent: paint only one and the other stays natural RWG.
- City placement. A City mode (Mode now cycles Biome -> Height -> City): click the canvas to drop a city marker (click again to remove), choose a size (Small/Medium/Large) and a building tier (1-6) with the -/+ buttons. The generator forces a real city at each marker at the chosen size, biased to the chosen building tier.
- "RWG towns" toggle (green ON / red OFF): turn OFF so only the cities you placed exist - no RWG-generated towns.
- All three paint layers (biome, height, cities) are visible at once; each mode and each city size has its own colour.
- Hover tooltips on the world-gen buttons, and scroll-wheel brush sizing (+/-1) over the canvas.
- Road editing (experimental). Off by default; enable it (with a confirm) to add a Roads mode. Generate a world to capture its road network onto the canvas, paint Country (green) or Highway (red) roads to finish or extend it, then regenerate the same seed and your roads bake in as real, terrain-smoothed roads.
- Brush shapes - a Shape button cycles the brush between Circle, Square, Diamond and their hollow versions (Ring, Square Frame, Diamond Frame) where only the border paints; scroll the wheel to set the border thickness. The filled Square can be a rectangle - scroll to set its height independently of width.
- Unsaved-changes warning - paint anything and the Save butt…

[1.3.0] - 2026-06-27
Added
Painted rivers. Paint Water across painted hills or mountains and Biome Brush now cuts a shallow river that follows the slope down the terrain, instead of slicing the high ground down to a sea-level gorge. Water painted on flat ground is still a normal lake / sea. (Water stays part of the biome layer - paint it the same way you always have.)
Reset All button. A Reset All button next to Clear wipes every layer (biome, height, roads, dig, cities, spawns, traders) back to a blank canvas, with a confirm first. (Clear still only clears the active layer.)
Spawn point placement. A Spawn mode (in the Mode picker): click the canvas to add spawn points. If you place any, the world uses only your spawn points - one valid tile per marker, nothing else (no RWG-generated spawns). Click a marker again to remove. Saved in presets.
Trader placement (experimental). A Trader mode: click the canvas and pick a trader (Bob/Hugh/Jen/Joel/Rekt) to force one there; the terrain under the footprint is flattened and the trader dropped in. Saved in presets.
Layer visibility toggles. A Layers row under the canvas (Biome / Height / Roads / Cities / Dig) shows or hides each layer in the canvas view while you paint. View only - never changes the map.
Symmetry / mirror painting. A Mirror toggle (Off / Horizontal / Vertical / Both) mirrors your strokes across the canvas centre.
File dialogs (export / import / presets). Export PNG and Save preset open a name-entry dialog; Import PNG, Load preset, and Delete preset open a picker dialog listing the available files (PNGs in Imports/, or your saved presets) with a hover outline; click one to use it (Delete confirms first). Import snaps each pixel to the nearest biome. The Imports/ and Exports/ folders ship with the mod.
Map presets. Save your whole painted map - every layer (biome, height, roads, dig/craters, cities, spawns, traders) plus the RWG-towns / roads toggles and the world-gen seed - to a named preset via Save / Load /…

[1.4.0] - 2026-07-01
Changed
- Manually placed traders (and other forced POIs) now sit flush with the ground. Placement used to flatten only the prefab's own footprint, so the raw terrain stepped up or down right at the building's edge and a trader could appear to perch a block above the surface. Placement now flattens a 20-block flat apron around the footprint at the ground height, with an 8-block taper that ramps the apron edge back to the natural terrain so there is no cliff around it.

[1.4.1] - 2026-07-02
Fixed
- Painted water no longer breaks the world for players without the mod. The Water brush marked those areas as a special underwater biome, which has no weather configuration, so anyone who joined a generated world without Biome Brush installed hit a NullReferenceException in the game's WeatherManager. The actual water is created from the terrain regardless of the biome, so the saved world now folds every painted-water area into the surrounding land biome. Generated worlds contain only normal biomes and can be played by anyone, with or without the mod. (The in-editor preview still shows your painted water as usual.)
Changed
- Placed cities are now built by RWG, no forced building tier. The city tool used to bias every building toward a chosen difficulty tier (1-6), which did not populate cities reliably. It now only sets the city's location and size and lets the game's own world generator fill the township with its natural mix of buildings, exactly like a normal RWG city. Pick Small / Medium / Large on the left; the tier picker and its brush box are gone from City mode.

[1.5.0] - 2026-07-07
Changed
- Mountains and peaks are properly pointy now. Painted Mountains keep their natural relief but read as real ridgelines instead of rounded domes, and painted Peaks rise as thin, spiky cones to a tall summit near the height ceiling instead of getting flattened into a plateau. Higher ground is sharper than lower ground, so hills stay gentle while peaks come to a point.
- Every shoreline gets at least a gentle slope. Where land meets water, the beach ramp is now guaranteed a ~10-block sloped buffer, so water no longer butts up against an abrupt drop. Wide natural beaches are unchanged; only the steep spots get eased. (Painted mountain rivers keep their steep banks on purpose.)