Calic 2e25833a93 Rename draw() hook to render() so the engine actually calls it
The engine module-lifecycle looks up HOOK_RENDER by the global
name 'render' (engine_module_lifecycle.c:166). The previous draw()
function was a global with no caller, so the editor's UI never
rendered — the engine fell back to its 'no render hook defined'
placeholder.
2026-05-24 03:12:27 +02:00

sporel-module-map-editor

Interactive map editor for v2 Sporel map files. Click-to-paint, vertical layer-chip overlay on the left edge, collapsible atlas+tile picker bottom-left.

Run

Default — edit the module's in-place work map:

bash scripts/run-map-editor.sh

With a target — copy a real map in, edit, copy back out:

bash scripts/run-map-editor.sh ~/Projects/Sporel/sporel-modules/spine-prototype/maps/demo.map.json

UI

  • Layer chips (left edge, vertical): top-of-stack down. Rf at top toggles roof-edit mode; the other eight chips select the active layer.
    • Left-click = set active layer (or toggle roof mode)
    • Right-click = toggle layer visibility (Rf chip ignores right-click)
  • Atlas + tile picker (bottom-left): collapsed chip shows the active tile. Click to expand; click again or outside to collapse.
  • Status chip (bottom-right): current mouse-cell coordinate plus a * when the map has unsaved changes.

Hotkeys

Key Action
Left click on map Paint cell with active tile (or set roof flag in roof-mode)
E Erase the cell under the mouse
R Cycle rotation 0 → 1 → 2 → 3 → 0
S Save to disk (overwrites the work map)
Esc Quit

Limitations (v0.1.0)

  • Tile thumbnails in the picker render as gray placeholders with tile-IDs as text — lib-core.maps v0.4.0 does not expose per-tile UVs to Lua, so visual thumbnails are a v0.2.0 task.
  • Atlas list in the picker is purely informational; if a map declares multiple atlases, the active atlas is set from state.lua defaults at startup and cannot yet be switched via UI (v0.2.0 hit-tests inside the expanded picker).
  • Engine bindings engine.render.draw_rect_lines and engine.render.draw_line are not yet registered — active-chip borders, hidden-layer strikethroughs, and the entity-slot divider will trigger runtime errors when their code paths execute. Adding the bindings is a small engine-side follow-up.
  • No undo/redo, no multi-tile brush, no entity placement, no heightmap editing — see the design spec §1 for the full out-of-scope list.

Spec

docs/superpowers/specs/2026-05-23-sporel-module-map-editor-design.md in the sporel-meta repo.

Description
Interactive map editor for v2 Sporel map files.
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