WeblionX: Added Category:Lua

2007-02-14T18:22:39Z

Added Category:Lua

Vetinari: ETPro:Lua IPC moved to Lua:IPC

2007-02-13T08:07:24Z

ETPro:Lua IPC moved to Lua:IPC

WeblionX: Mismatched parentheses!

2007-02-12T02:31:13Z

Mismatched parentheses!

Vetinari: new page, IPC demos

2007-02-11T12:01:20Z

new page, IPC demos

New page

= Lua: IPC - Communication between Scripts =
If you have several scripts, which access the same data, you can have one script, which manages this data and one or more scripts reading (or writing) this data.

For communication between these scripts, use the [[Lua_Mod_API#modules|et.IPCSend()]] and [[Lua_Mod_API#miscellaneous_2|et_IPCReceive( )]] functions. You cannot receive some data and send it back in the same (server) frame. These example scripts illustrate how to pass requests and the answers back and forth.

The '''ipcdemo-admin.lua''' script must be loaded first (i.e. earlier in the [[Lua_Mod_API#lua_modules|lua_modules]] cvar, else the '''ipcdemo-cmd.lua''' cannot find it.

== ipcdemo-admin.lua ==
-- ipcdemo-admin.lua
local IPCQueue = {}
local AdminGUIDs = {
-- name, guid, level
{ "Vetinari", "ABCDEF1234567890ABCDEF1234567890", 5 },
{ "Havelock", "1234567890ABCDEF1234567890ABCDEF", 3 }
}
 
function et_InitGame(levelTime, randomSeed, restart)
et.RegisterModname("ipcdemo-admin.lua")
end
 
function et_IPCReceive(vm, msg)
local level
local junk1, junk2, id = string.find(msg, "IsAdmin:%s+(%d+)")
if id ~= nil then
id = tonumber(id)
guid = et.Info_ValueForKey(et.trap_GetUserinfo(id), "cl_guid")
level = table.foreach(AdminGUIDs,
function(i, admin)
if admin[2] == guid then
return(admin[3])
end
end
)
if level == nil then
level = 0
end
table.insert(IPCQueue, { vm, level, id })
end
end
 
function et_RunFrame(lvltime)
table.foreach(IPCQueue,
function(i, queue)
local ok = et.IPCSend(queue[1],
string.format("IsAdmin: %d %d", queue[2], queue[3]))
if ok ~= 1 then
local mod, cksum = et.FindMod(queue[1])
et.G_Print(string.format("ipcdemo-admin: IPCSend to %s (vm: %d) failed", mod, queue[1]))
end
end
)
IPCQueue = {}
end

== ipcdemo-cmd.lua ==
-- ipcdemo-cmd.lua
local admin_vm = -1
local CommandQueue = {}
 
function et_InitGame(levelTime, randomSeed, restart)
local mod = ""
local sig = ""
local i = 1
while mod ~= nil do
mod, sig = et.FindMod(i)
if string.find(mod, "^ipcdemo-admin.lua") == 1 then
admin_vm = i
mod = nil
end
i = i + 1
end
if admin_vm == -1 then
et.G_Print("ipcdemo-cmd.lua: Could not find vm number for ipcdemo-admin.lua")
end
et.RegisterModname("ipcdemo-cmd.lua")
end
 
function et_IPCReceive(vm, msg)
if vm == admin_vm then
local junk1,junk2,level,id = string.find(msg, "IsAdmin:%s+(%d+)%s+(%d)")
if level ~= nil and id ~= nil then
runAction(tonumber(id), tonumber(level))
end
end
end
 
function runAction(id, level)
local done = table.foreach(CommandQueue,
function(i, queue)
if id == queue[1] then
if queue[2] <= level then
if queue[4] == nil then
et.trap_SendConsoleCommand(et.EXEC_INSERT, queue[3])
else
et.trap_SendConsoleCommand(et.EXEC_INSERT,
string.format("%s %s", queue[3], queue[4]))
end
end
return(i)
end
end
)
if done ~= nil then
table.remove(CommandQueue, done)
end
end
 
function et_ClientCommand(id, command)
local arg0 = et.trap_Argv(0)
local arg1 = et.trap_Argv(1)
if arg0 == "say" then
if arg1 == "!axis" then
-- id, lvl, cmd, argument
queueCommand(id, 4, "forceteam r", id)
elseif arg1 == "!allies" then
queueCommand(id, 4, "forceteam b", id)
elseif arg1 == "!shuffle" then
queueCommand(id, 3, "shuffleteamsxp_norestart", nil)
end
end
return(0)
end
 
function queueCommand(id, level, cmd, argument)
if admin_vm ~= -1 then
local ok = et.IPCSend(admin_vm, string.format("IsAdmin: %d", id))
if ok ~= 1 then
et.G_Print("ipcdemo-cmd: IPCSend to ipcdemo-admin failed")
else
table.insert(CommandQueue, { id, level, cmd, argument })
end
end
end

← Older revision		Revision as of 18:22, 14 February 2007
Line 132:		Line 132:
	<font color="#8080ff"><b>end</b></font>		<font color="#8080ff"><b>end</b></font>
	<font color="#0000ff">end</font>		<font color="#0000ff">end</font>
		+
		+	[[Category:Lua]]

← Older revision	Revision as of 08:07, 13 February 2007
(No difference)

@@ Line 4: / Line 4: @@
 For communication between these scripts, use the [[Lua_Mod_API#modules|et.IPCSend()]] and [[Lua_Mod_API#miscellaneous_2|et_IPCReceive( )]] functions. You cannot receive some data and send it back in the same (server) frame. These example scripts illustrate how to pass requests and the answers back and forth.
-The '''ipcdemo-admin.lua''' script must be loaded first (i.e. earlier in the [[Lua_Mod_API#lua_modules|lua_modules]] cvar, else the '''ipcdemo-cmd.lua''' cannot find it.
+The '''ipcdemo-admin.lua''' script must be loaded first (i.e. earlier in the [[Lua_Mod_API#lua_modules|lua_modules]] cvar) otherwise the '''ipcdemo-cmd.lua''' cannot find it.
 == ipcdemo-admin.lua ==

Lua:IPC - Revision history

WeblionX: Added Category:Lua

Vetinari: ETPro:Lua IPC moved to Lua:IPC

WeblionX: Mismatched parentheses!

Vetinari: new page, IPC demos