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fix(audit-M1): tile_at 3-arg form accepts nil map_id with current_map fallback

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Axel Meyer
2026-05-10 15:46:35 +02:00
parent 94c2197d46
commit ecc6796b0d
1 changed files with 6 additions and 4 deletions
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10
init.lua
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@@ -169,16 +169,18 @@ function M.tile_size(map_id)
return map_registry[id].tile_size return map_registry[id].tile_size
end end
-- Arity-flex sugar: tile_at(tx, ty) uses current_map_id; tile_at(map_id, tx, ty) is explicit. -- Arity-flex sugar: tile_at(tx, ty) uses current_map_id; tile_at(map_id, tx, ty)
-- is explicit. Both forms accept nil map_id and fall back to current_map_id.
function M.tile_at(a, b, c) function M.tile_at(a, b, c)
local map_id, tx, ty local map_id, tx, ty
if c == nil then if c == nil then
map_id, tx, ty = current_map_id, a, b map_id, tx, ty = current_map_id, a, b
if not map_id then
error("maps.tile_at: no current map; call set_current() first or pass map_id")
end
else else
map_id, tx, ty = a, b, c map_id, tx, ty = a, b, c
if map_id == nil then map_id = current_map_id end
end
if not map_id then
error("maps.tile_at: no current map; call set_current() first or pass map_id")
end end
local m = map_registry[map_id] local m = map_registry[map_id]
if not m then if not m then