IO System

IO System was introduced in Zombie Panic! to simplify some unnecessary entities for Objective maps. IO System also supports some minor scripting, but not much as it was never designed with that in mind.

Functions & Commands

Global Functions

Function	Description
Function OnMapStart()	Called when the map has just been loaded
Function OnRoundStart()	Called when the round starts
Function OnMapEnd()	Called when the map ends.
Function OnPlayerSpawned(Player)	The player who just spawned Note:Unsed?
Function OnInputReceived(EntityID, Action, Value)	When an input was recived
Function OnOutputSent(EntityID, EntityName, OutputName, OutputValue, OutputDelay)	When an entity fires an outout
Function CalculatePlayerAmount(Players)	Called on round start, useful for populating AddToSpawnList

Commands

Example	Description	Arguments
FireOutput "my_target" "MyInput" "MyValue" 5.0	Fires an output from the target entity	FireOutput <target> <input> <value> <float>
ASCall "MyFunction()"	Fires an AngelScript function Note:AngelScript is not supported in current version, so this is unsupported.	ASCall <string>
Wait 2.5	Waits until next line gets fired.	Wait <float>
Break {param} if "MyValue"	Stops the function. The lines after the break will be ignored.	Break <value> if <value>
if EntityName == "apple"	An if statement block	if <value> <type> <value>
elseif EntityName is "orange"	Ditto, same as if, but for elseif	elseif <value> <type> <value>
else	Ditto.	else
end	Ends the if/else/elseif statement blocks	end
PrintToConsole "Message here"	Prints a message to the host console	PrintToConsole <string>
PrintToChat "Message here"	Prints a message to everybody's chat	PrintToChat <string>
GiveItem 0 "item_name"	Gives a specific item to the player.	GiveItem <int> <string>
Participated 0 "ID_Name"	Tells which player participated a certain event.	Participated <int> <string>
AddToSpawnList Ammo "item_name" 5	Adds an item to the spawn list.	AddToSpawnList <Ammo/Items/Weapons> <string> <int>
SpawnItems	Spawns the items from the AddToSpawnList (and purges the list after)	SpawnItems

Example

This example is directly from zp_haunted.io file

Function OnRoundStart()
{
	FireOutput "bookbtn0" "DeActivate" "" 1.0
	FireOutput "bookbtn1" "DeActivate" "" 1.0
}

Function OnOutputSent( EntityID, EntityName, OutputName, OutputValue, OutputDelay )
{
	if EntityName is "wpn_give"
		// Give the player the shotgun
		GiveItem {OutputValue} "weapon_dbarrel"
	end

	if EntityName is "me_book"
		FireOutput "bookbtn1" "Activate" "" 1.0
	end

	if EntityName is "book_place1"
		FireOutput "bookbtn0" "Activate" "" 1.0
	end

	// The player participated in finding the anomalies
	if EntityName is "anomaly0"
		Participated {OutputValue} "HOUSEOFHORRORS"
		FireOutput "book_check" "IncreaseValue" "" 0.0
	elseif EntityName is "anomaly1"
		Participated {OutputValue} "HOUSEOFHORRORS"
		FireOutput "book_check" "IncreaseValue" "" 0.0
	elseif EntityName is "anomaly2"
		Participated {OutputValue} "HOUSEOFHORRORS"
		FireOutput "book_check" "IncreaseValue" "" 0.0
	elseif EntityName is "anomaly3"
		Participated {OutputValue} "HOUSEOFHORRORS"
		FireOutput "book_check" "IncreaseValue" "" 0.0
	elseif EntityName is "anomaly4"
		Participated {OutputValue} "HOUSEOFHORRORS"
		FireOutput "book_check" "IncreaseValue" "" 0.0
	elseif EntityName is "anomaly5"
		Participated {OutputValue} "HOUSEOFHORRORS"
		FireOutput "book_check" "IncreaseValue" "" 0.0
	end

	// Our book was set, and we found all anomalies!
	if EntityName is "book_set_snd"
		FireOutput "world_ending" "StartShake" "" 0.0
		FireOutput "end_fog" "StartFog" "" 1.0
		FireOutput "anomaly_ach" "GiveAchievement" "" 3.0
	end
}