Add map authoring asset foundation

[miskibin]

Summary

• Add a RON-backed MapAuthoring overlay schema for the future visual map editor.
• Add a dev-only in-game Map Editor panel (FOREST_MAP_EDITOR=1, toggle F4) for soft biome-region painting at the hero position.
• Support session undo/redo, save, and Save + Rebuild for edited biome regions.
• Hook biome, height, and river/water overrides into the existing worldmap bake pipeline while leaving normal gameplay unchanged when no asset is active.

Walkthrough

map_editor_panel_demo_ready.mp4
Map editor panel
Painted map authoring smoke test

Testing

• cargo test map_authoring && cargo check && cargo test -p tileworld_core
• cargo build
• BEVY_ASSET_ROOT=$PWD FOREST_MAP_EDITOR=1 FOREST_SHOT=/opt/cursor/artifacts/map_editor_panel.png FOREST_CAM="0,60,20,0,0,0" FOREST_NOHUD=1 FOREST_NOCLOUDS=1 FOREST_QUALITY=low FOREST_FOG="4000,9000" FOREST_TIME=0.28 timeout 570 xvfb-run -a -s "-screen 0 1280x720x24" ./target/debug/tileworld_bevy_forest
• BEVY_ASSET_ROOT=$PWD FOREST_MAP_EDITOR=1 FOREST_CLIP=/tmp/map_editor_panel_clip_ready FOREST_CLIP_FRAMES=45 FOREST_CLIP_FPS=15 FOREST_CLIP_WARMUP=140 FOREST_CAM="0,60,20,0,0,0" FOREST_NOHUD=1 FOREST_NOCLOUDS=1 FOREST_QUALITY=low FOREST_FOG="4000,9000" FOREST_TIME=0.28 timeout 570 xvfb-run -a -s "-screen 0 1280x720x24" ./target/debug/tileworld_bevy_forest

Note: capture logs still report two pre-existing missing rival VO files (rival_fell_a.ogg, rival_fell_b.ogg), unrelated to map authoring; the runs exit 0 and save frames/screenshots.

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Project	Deployment	Actions	Updated (UTC)
warbell	Ready	Preview, Comment, Open in v0	Jul 9, 2026 9:49am

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