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Experimental-ish rollback functionality

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This commit is contained in:
Perttu Ahola 2012-07-26 22:06:45 +03:00
parent 0c91a0d59d
commit 0190f9b077
20 changed files with 1316 additions and 27 deletions
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72
builtin/chatcommands.lua
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@ -496,3 +496,75 @@ minetest.register_chatcommand("pulverize", {
end,
})
-- Key = player name
minetest.rollback_punch_callbacks = {}
minetest.register_on_punchnode(function(pos, node, puncher)
local name = puncher:get_player_name()
if minetest.rollback_punch_callbacks[name] then
minetest.rollback_punch_callbacks[name](pos, node, puncher)
minetest.rollback_punch_callbacks[name] = nil
end
end)
minetest.register_chatcommand("rollback_check", {
params = "[<range>] [<seconds>]",
description = "check who has last touched a node or near it, "..
"max. <seconds> ago (default range=0, seconds=86400=24h)",
privs = {rollback=true},
func = function(name, param)
local range, seconds = string.match(param, "(%d+) *(%d*)")
range = tonumber(range) or 0
seconds = tonumber(seconds) or 86400
minetest.chat_send_player(name, "Punch a node (limits set: range="..
dump(range).." seconds="..dump(seconds).."s)")
minetest.rollback_punch_callbacks[name] = function(pos, node, puncher)
local name = puncher:get_player_name()
local actor, act_p, act_seconds =
minetest.rollback_get_last_node_actor(pos, range, seconds)
if actor == "" then
minetest.chat_send_player(name, "Nobody has touched the "..
"specified location in "..dump(seconds).." seconds")
return
end
local nodedesc = "this node"
if act_p.x ~= pos.x or act_p.y ~= pos.y or act_p.z ~= pos.z then
nodedesc = minetest.pos_to_string(act_p)
end
minetest.chat_send_player(name, "Last actor on "..nodedesc.." was "..
actor..", "..dump(act_seconds).."s ago")
end
end,
})
minetest.register_chatcommand("rollback", {
params = "<player name> [<seconds>] | :liquid [<seconds>]",
description = "revert actions of a player; default for <seconds> is 60",
privs = {rollback=true},
func = function(name, param)
local target_name, seconds = string.match(param, ":([^ ]+) *(%d*)")
if not target_name then
local player_name = nil;
player_name, seconds = string.match(param, "([^ ]+) *(%d*)")
if not player_name then
minetest.chat_send_player(name, "Invalid parameters. See /help rollback and /help rollback_check")
return
end
target_name = "player:"..player_name
end
seconds = tonumber(seconds) or 60
minetest.chat_send_player(name, "Reverting actions of "..
dump(target_name).." since "..dump(seconds).." seconds.")
local success, log = minetest.rollback_revert_actions_by(
target_name, seconds)
for _,line in ipairs(log) do
minetest.chat_send_player(name, line)
end
if success then
minetest.chat_send_player(name, "Reverting actions succeeded.")
else
minetest.chat_send_player(name, "Reverting actions FAILED.")
end
end,
})