idk even anymore

_helpers.lua

@@ -32,6 +32,41 @@ function writeToSource(relPath, contents)
 	return love.filesystem.write(relPath, contents)
 end
 
+-- The editor occasionally needs to rename a source level after it has written
+-- the replacement.  Keep that operation alongside writeToSource so packaged
+-- games still fall back to LÖVE's writable save directory.
+function removeFromSource(relPath)
+	local base = love.filesystem.getSource()
+	local path = base .. "/" .. relPath
+	local file = io.open(path, "r")
+	if file then
+		file:close()
+		return os.remove(path)
+	end
+	return love.filesystem.remove(relPath)
+end
+
+-- Runtime saves live in LÖVE's write directory.  This deliberately uses only
+-- love.filesystem operations: they cannot delete files from the source tree.
+function clearRuntimeSaveData()
+	local removed = 0
+	local function removeTree(path)
+		if love.filesystem.isDirectory(path) then
+			for _, child in ipairs(love.filesystem.getDirectoryItems(path)) do
+				removeTree(path .. "/" .. child)
+			end
+		end
+		if love.filesystem.remove(path) then removed = removed + 1 end
+	end
+
+	-- These are the only files this game writes through love.filesystem: room
+	-- autosaves and the generated asset cache.  Source levels are read-only to
+	-- this API and cannot be removed here.
+	removeTree("rooms")
+	if love.filesystem.remove("assets.prop") then removed = removed + 1 end
+	return removed
+end
+
 -- Read from the project tree directly so a stale copy in LÖVE's save directory
 -- can't shadow the real source file. Falls back to love.filesystem for a
 -- packaged .love.