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adventin/stead/snapshots.lua
2010-07-14 16:11:20 +00:00

56 lines
1.1 KiB
Lua

game._snapshots = {}
function make_snapshot(nr)
if not tonumber(nr) then nr = 0 end
local h = { };
h.txt = ''
h.write = function(s, ...)
local i
for i = 1, stead.table.maxn(arg) do
s.txt = s.txt .. tostring(arg[i]);
end
end
local old = game._snapshots; game._snapshots = nil
do_savegame(game, h);
game._snapshots = old
game._snapshots[nr] = h.txt;
end
function isSnapshot(nr)
if not tonumber(nr) then nr = 0 end
return (game._snapshots[nr] ~= nil)
end
function restore_snapshot(nr)
if not tonumber(nr) then nr = 0 end
local ss = game._snapshots
if not ss[nr] then return nil, true end -- nothing todo
local i,v
gamefile("main.lua", true);
stead.pclr();
-- if type(init) == 'function' then -- no hooks here!!!
-- init();
-- end
local f, err = loadstring(ss[nr]);
if not f then return end
local i,r = f();
game._snapshots = ss
if r then
return nil, false
end
i = do_ini(game, true);
RAW_TEXT = true
delete_snapshot(nr);
if cctx() then
pr(i)
end
return i;
end
function delete_snapshot(nr)
if not tonumber(nr) then nr = 0 end
game._snapshots[nr] = nil
end
-- vim:ts=4