swap.xml

<Layer LoadCommand = "%xero(function(self)
	local swaps = {}
	local cols = {l = 0, d = 1, u = 2, r = 3}
	local movex = {[0] = 'movex0', 'movex1', 'movex2', 'movex3'}
	local has = string.find
	local function lambda(path)
		path = path or ''
		local e = true
		if not has(path, 'l') then lambda(path..'l') e = false end
		if not has(path, 'd') then lambda(path..'d') e = false end
		if not has(path, 'u') then lambda(path..'u') e = false end
		if not has(path, 'r') then lambda(path..'r') e = false end
		if e then
			local list = {}
			for col = 0, 3 do
				local t = cols[string.sub(path, col + 1, col + 1)]
				list[t] = (col - t) * 100
			end
			swaps[path] = list
		end
	end
	lambda()
	function swap(t)
		local which = t[4]
		for col = 0, 3 do
			t[4 + col * 2] = swaps[which][col]
			t[5 + col * 2] = movex[col]
		end
		ease(t, 1, 'swap')
		return swap
	end
end)" />