Entity Mod JSON Format

Entity JSON supports a variety of parameters to create custom objects.

Fixed fields

A "type" of "ENTITY" should be used when creating an entity mod.

An optional "id" parameter can be used to refer to this type of entity (for instance in Entity.generate() to programmatically create additional entities). Be careful not to use the same id as another mod -- if you use the same mod name as your mod wiki page, you can be assured of no conflicts. (Introduced in r25)

An optional "customPublicFunctions" parameter is an array of custom lua functions that should be publicly available to other lua scripts. The radio sample shows an example of this. You can pass and return values, however, it's recommened to stick with primitive values when possible. Initial testing shows complex values like Tables and Entities are also okay to pass, but this is not well tested yet. (Introduced in r35)

Dynamic fields

JSON definitions can specify each as programmable (LUA) or literal values.

Return Type	Parameter
string	name Title of the item.
string	description Description of the item when looked at.
boolean	playerOnEnterRoom Can be used to present some special text when player enters a room when this object is inside it or prevent the player from entering. But if it's not necessary to prevent player from entering, you may want to use the notify version of this function below. Normally true. If false, will prevent mapscene from doing further room processing (be sure to use a continue scene) As of r35, Lua function will receive these variables as parameters: - currentRoom:String (however, currentRoom is placeholder. It can be queried for manually if needed based on entity current position) - destinationRoom:String
boolean	playerAttemptLeaveRoom Can be used to prevent player from leaving room when in same room as entity. Normally true. If false, will prevent mapscene from doing further room processing (be sure to use a continue scene) As of r35, Lua function will receive these variables as parameters: - currentRoom:String (however, currentRoom is placeholder. It can be queried for manually if needed based on entity current position) - destinationRoom:String - destinationRoomID:int
boolean	isExaminable Allow player to examine object?  (This is the page description is displayed on. Otherwise will be invisible to player).
boolean	isUseable Display the 'use' button on the examine item page?
boolean	doUse Action to do on using entity. Usually should return true -- this will cause a continue scene after the text. For a manual continue or a different scene change, return false.
boolean	isPickupable Should a pick-up item be displayed on item page if item is in the world?
boolean	playerAttemptPickupCheck Player has opted to pick up the item (may output descriptive message to screen) Returns if successful in pickup attempt.
boolean	isDropable Should a drop item be displayed on item page if item is in inventory?
boolean	playerAttemptDropCheck Player has opted to drop the item. Return if successful in drop attempt.
void	inInventoryTick Called each turn the item exists in the player's inventory.
void	inWorldTick Called each turn the item exists on the map somewhere (may not be called if player is on a different map).
void	notifyPlayerEnterRoom Notify object that player has just entered the same room as us. Okay to output to screen - this is called after showScene() of the room. As of r35, Lua function will receive these variables as parameters: - arrivingFromRoom    String name of room that was arrived from (before this room) - arrivingFromRoomID    ID of room arriving from (before this room)
void	notifyPlayerEnterRoomPreScene Notify object that player has just entered the same room as us This variant happens BEFORE showScene() is called, so is best for when entities are moving in/out based on player actions. Don't output to screen using this call - it will be eaten by showScene() As of r35, Lua function will receive these variables as parameters: - arrivingFromRoom    String name of room that was arrived from (before this room) - arrivingFromRoomID    ID of room arriving from (before this room)
void	notifyPlayerLeftRoom Notify entity of the room the player is leaving that the player left successfully.  Entities should not write to the screen since showScene() will immediately overwrite it. The player's position has already been updated with the correct location by this point. As of r35, Lua function will receive these variables as parameters: - originalRoomName     - originalRoomID