Class PlayerInputManager
Manages joining and leaving of players.
Inherited Members
Namespace: UnityEngine.InputSystem
Syntax
[AddComponentMenu("Input/Player Input Manager")]
public class PlayerInputManager : MonoBehaviour
Remarks
This is a singleton component. Only one instance is meant to be active in a game at any one time. To retrieve the current instance, use instance.
Note that a PlayerInputManager is not strictly required to have multiple PlayerInput components. What PlayerInputManager provides is the implementation of specific player join mechanisms (joinBehavior) as well as automatic assignment of split-screen areas (splitScreen). However, you can always implement your own custom logic instead and simply instantiate multiple GameObjects with PlayerInput yourself.
Fields
PlayerJoinedMessage
Name of the message that is sent when a player joins the game.
Declaration
public const string PlayerJoinedMessage = "OnPlayerJoined"
Field Value
Type | Description |
---|---|
String |
PlayerLeftMessage
Declaration
public const string PlayerLeftMessage = "OnPlayerLeft"
Field Value
Type | Description |
---|---|
String |
Properties
fixedNumberOfSplitScreens
Declaration
public int fixedNumberOfSplitScreens { get; }
Property Value
Type | Description |
---|---|
Int32 |
instance
Singleton instance of the manager.
Declaration
public static PlayerInputManager instance { get; }
Property Value
Type | Description |
---|---|
PlayerInputManager | Singleton instance or null. |
joinAction
Declaration
public InputActionProperty joinAction { get; set; }
Property Value
Type | Description |
---|---|
InputActionProperty |
joinBehavior
Determines the mechanism by which players can join when joining is enabled (joiningEnabled).
Declaration
public PlayerJoinBehavior joinBehavior { get; set; }
Property Value
Type | Description |
---|---|
PlayerJoinBehavior |
joiningEnabled
Whether new players can currently join.
Declaration
public bool joiningEnabled { get; }
Property Value
Type | Description |
---|---|
Boolean |
Remarks
While this is true, new players can join via the mechanism determined by joinBehavior.
See Also
maintainAspectRatioInSplitScreen
If splitScreen is enabled, this property determines whether subdividing the screen is allowed to produce screen areas that have an aspect ratio different from the screen resolution.
Declaration
public bool maintainAspectRatioInSplitScreen { get; }
Property Value
Type | Description |
---|---|
Boolean |
Remarks
By default, when splitScreen is enabled, the manager will add or remove screen subdivisions in steps of two. This means that when, for example, the second player is added, the screen will be subdivided into a left and a right screen area; the left one allocated to the first player and the right one allocated to the second player.
This behavior makes optimal use of screen real estate but will result in screen areas that have aspect ratios different from the screen resolution. If this is not acceptable, this property can be set to true to enforce split-screen to only create screen areas that have the same aspect ratio of the screen.
This results in the screen being subdivided more aggressively. When, for example, a second player is added, the screen will immediately be divided into a four-way split-screen setup with the lower two screen areas not being used.
This property is irrelevant if fixedNumberOfSplitScreens is used.
maxPlayerCount
Maximum number of players allowed concurrently in the game.
Declaration
public int maxPlayerCount { get; }
Property Value
Type | Description |
---|---|
Int32 |
Remarks
If this limit is reached, joining is turned off automatically.
By default this is set to -1. Any negative value deactivates the player limit and allows arbitrary many players to join.
notificationBehavior
Declaration
public PlayerNotifications notificationBehavior { get; set; }
Property Value
Type | Description |
---|---|
PlayerNotifications |
playerCount
The current number of active players.
Declaration
public int playerCount { get; }
Property Value
Type | Description |
---|---|
Int32 |
Remarks
This count corresponds to all PlayerInput instances that are currently enabled.
playerJoinedEvent
Declaration
public PlayerInputManager.PlayerJoinedEvent playerJoinedEvent { get; }
Property Value
Type | Description |
---|---|
PlayerInputManager.PlayerJoinedEvent |
playerLeftEvent
Declaration
public PlayerInputManager.PlayerLeftEvent playerLeftEvent { get; }
Property Value
Type | Description |
---|---|
PlayerInputManager.PlayerLeftEvent |
playerPrefab
Reference to the prefab that the manager will instantiate when players join.
Declaration
public GameObject playerPrefab { get; set; }
Property Value
Type | Description |
---|---|
GameObject | Prefab to instantiate for new players. |
splitScreen
If enabled, each player will automatically be assigned a portion of the available screen area.
Declaration
public bool splitScreen { get; set; }
Property Value
Type | Description |
---|---|
Boolean |
Remarks
For this to work, each PlayerInput component must have an associated Camera object through camera.
Note that as player join, the screen may be increasingly subdivided and players may see their previous screen area getting resized.
splitScreenArea
The normalized screen rectangle available for allocating player split-screens into.
Declaration
public Rect splitScreenArea { get; }
Property Value
Type | Description |
---|---|
Rect |
Remarks
This is only used if splitScreen is true.
By default it is set to (0,0,1,1)
, i.e. the entire screen area will be used for player screens.
If, for example, part of the screen should display a UI/information shared by all players, this
property can be used to cut off the area and not have it used by PlayerInputManager.
Methods
DisableJoining()
Inhibit players from joining the game.
Declaration
public void DisableJoining()
See Also
EnableJoining()
Allow players to join the game based on joinBehavior.
Declaration
public void EnableJoining()
See Also
JoinPlayer(Int32, Int32, String, InputDevice)
Spawn a new player from playerPrefab.
Declaration
public PlayerInput JoinPlayer(int playerIndex = -1, int splitScreenIndex = -1, string controlScheme = null, InputDevice pairWithDevice = null)
Parameters
Type | Name | Description |
---|---|---|
Int32 | playerIndex | Optional explicit playerIndex to assign to the player. Must be unique within all. If not supplied, a player index will be assigned automatically (smallest unused index will be used). |
Int32 | splitScreenIndex | Optional splitScreenIndex. If supplied, this assigns a split-screen area to the player. For example, a split-screen index of |
String | controlScheme | Control scheme to activate on the player (optional). If not supplied, a control scheme will
be selected based on |
InputDevice | pairWithDevice | Device to pair to the player. Also determines which control scheme to use if |
Returns
Type | Description |
---|---|
PlayerInput | The newly instantiated player or |
Remarks
Joining must be enabled (see joiningEnabled) or the method will fail.
To pair multiple devices, use JoinPlayer(Int32, Int32, String, InputDevice[]).
JoinPlayer(Int32, Int32, String, InputDevice[])
Spawn a new player from playerPrefab.
Declaration
public PlayerInput JoinPlayer(int playerIndex = -1, int splitScreenIndex = -1, string controlScheme = null, params InputDevice[] pairWithDevices)
Parameters
Type | Name | Description |
---|---|---|
Int32 | playerIndex | Optional explicit playerIndex to assign to the player. Must be unique within all. If not supplied, a player index will be assigned automatically (smallest unused index will be used). |
Int32 | splitScreenIndex | Optional splitScreenIndex. If supplied, this assigns a split-screen area to the player. For example, a split-screen index of |
String | controlScheme | Control scheme to activate on the player (optional). If not supplied, a control scheme will
be selected based on |
InputDevice[] | pairWithDevices | Devices to pair to the player. Also determines which control scheme to use if |
Returns
Type | Description |
---|---|
PlayerInput | The newly instantiated player or |
Remarks
Joining must be enabled (see joiningEnabled) or the method will fail.
JoinPlayerFromAction(InputAction.CallbackContext)
Join a new player based on input received through an InputAction.
Declaration
public void JoinPlayerFromAction(InputAction.CallbackContext context)
Parameters
Type | Name | Description |
---|---|---|
InputAction.CallbackContext | context |
JoinPlayerFromActionIfNotAlreadyJoined(InputAction.CallbackContext)
Declaration
public void JoinPlayerFromActionIfNotAlreadyJoined(InputAction.CallbackContext context)
Parameters
Type | Name | Description |
---|---|---|
InputAction.CallbackContext | context |
Events
onPlayerJoined
Declaration
public event Action<PlayerInput> onPlayerJoined
Event Type
Type | Description |
---|---|
Action<PlayerInput> |
onPlayerLeft
Declaration
public event Action<PlayerInput> onPlayerLeft
Event Type
Type | Description |
---|---|
Action<PlayerInput> |