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fix(ui): render LOS boundary wall tiles through fog without marking explored (#585)

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- game_state.gd: add boundary_positions Dictionary field; BoundaryWall tiles from
  visible_tiles go to boundary_positions instead of visible_positions — rendered by
  tile_renderer but not tracked as explored fog memory
- fog_state.gd: update_from_state() writes VIS_FORWARD for boundary_positions so fog
  lifts over margin wall content; boundary tiles excluded from exploration step so they
  don't persist as EXP_EXPLORED when player turns away
- tile_renderer.gd: no changes needed — renders all visible_tiles by type, sector-agnostic
- test_fog_shader.gd: 4 new tests — boundary excluded from visible_positions, tracked in
  boundary_positions, cleared each snapshot, fog lifts to VIS_FORWARD

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
jpmschweitzer
2026-03-04 20:32:32 +01:00
co-authored by Claude Sonnet 4.6
parent c3abf32185
commit 475280191c
3 changed files with 93 additions and 4 deletions
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client/scripts/autoloads/fog_state.gd
+8
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@@ -161,6 +161,14 @@ func update_from_state() -> void:
if px < 0 or py < 0 or px >= _width or py >= _height:
continue
_vis_bytes[py * _width + px] = VIS_FORWARD
# #585: BoundaryWall margin tiles — fog lifts so wall content composites correctly,
# but NOT in visible_positions so they don't persist as explored memory.
for pos in GameState.boundary_positions:
var px: int = pos.x - ox
var py: int = pos.y - oy
if px < 0 or py < 0 or px >= _width or py >= _height:
continue
_vis_bytes[py * _width + px] = VIS_FORWARD
_vis_image.set_data(_width, _height, false, Image.FORMAT_R8, _vis_bytes)
visibility_texture.update(_vis_image)