78 lines
5.3 KiB
XML
78 lines
5.3 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="WebRTCMultiplayerPeer" inherits="MultiplayerPeer" version="4.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../doc/class.xsd">
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<brief_description>
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A simple interface to create a peer-to-peer mesh network composed of [WebRTCPeerConnection] that is compatible with the [MultiplayerAPI].
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</brief_description>
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<description>
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This class constructs a full mesh of [WebRTCPeerConnection] (one connection for each peer) that can be used as a [member MultiplayerAPI.multiplayer_peer].
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You can add each [WebRTCPeerConnection] via [method add_peer] or remove them via [method remove_peer]. Peers must be added in [constant WebRTCPeerConnection.STATE_NEW] state to allow it to create the appropriate channels. This class will not create offers nor set descriptions, it will only poll them, and notify connections and disconnections.
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When creating the peer via [method create_client] or [method create_server] the [method MultiplayerPeer.is_server_relay_supported] method will return [code]true[/code] enabling peer exchange and packet relaying when supported by the [MultiplayerAPI] implementation.
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[b]Note:[/b] When exporting to Android, make sure to enable the [code]INTERNET[/code] permission in the Android export preset before exporting the project or using one-click deploy. Otherwise, network communication of any kind will be blocked by Android.
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="add_peer">
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<return type="int" enum="Error" />
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<param index="0" name="peer" type="WebRTCPeerConnection" />
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<param index="1" name="peer_id" type="int" />
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<param index="2" name="unreliable_lifetime" type="int" default="1" />
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<description>
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Add a new peer to the mesh with the given [param peer_id]. The [WebRTCPeerConnection] must be in state [constant WebRTCPeerConnection.STATE_NEW].
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Three channels will be created for reliable, unreliable, and ordered transport. The value of [param unreliable_lifetime] will be passed to the [code]"maxPacketLifetime"[/code] option when creating unreliable and ordered channels (see [method WebRTCPeerConnection.create_data_channel]).
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</description>
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</method>
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<method name="create_client">
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<return type="int" enum="Error" />
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<param index="0" name="peer_id" type="int" />
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<param index="1" name="channels_config" type="Array" default="[]" />
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<description>
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Initialize the multiplayer peer as a client with the given [param peer_id] (must be between 2 and 2147483647). In this mode, you should only call [method add_peer] once and with [param peer_id] of [code]1[/code]. This mode enables [method MultiplayerPeer.is_server_relay_supported], allowing the upper [MultiplayerAPI] layer to perform peer exchange and packet relaying.
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You can optionally specify a [param channels_config] array of [enum MultiplayerPeer.TransferMode] which will be used to create extra channels (WebRTC only supports one transfer mode per channel).
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</description>
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</method>
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<method name="create_mesh">
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<return type="int" enum="Error" />
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<param index="0" name="peer_id" type="int" />
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<param index="1" name="channels_config" type="Array" default="[]" />
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<description>
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Initialize the multiplayer peer as a mesh (i.e. all peers connect to each other) with the given [param peer_id] (must be between 1 and 2147483647).
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</description>
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</method>
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<method name="create_server">
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<return type="int" enum="Error" />
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<param index="0" name="channels_config" type="Array" default="[]" />
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<description>
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Initialize the multiplayer peer as a server (with unique ID of [code]1[/code]). This mode enables [method MultiplayerPeer.is_server_relay_supported], allowing the upper [MultiplayerAPI] layer to perform peer exchange and packet relaying.
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You can optionally specify a [param channels_config] array of [enum MultiplayerPeer.TransferMode] which will be used to create extra channels (WebRTC only supports one transfer mode per channel).
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</description>
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</method>
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<method name="get_peer">
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<return type="Dictionary" />
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<param index="0" name="peer_id" type="int" />
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<description>
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Returns a dictionary representation of the peer with given [param peer_id] with three keys. [code]"connection"[/code] containing the [WebRTCPeerConnection] to this peer, [code]"channels"[/code] an array of three [WebRTCDataChannel], and [code]"connected"[/code] a boolean representing if the peer connection is currently connected (all three channels are open).
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</description>
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</method>
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<method name="get_peers">
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<return type="Dictionary" />
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<description>
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Returns a dictionary which keys are the peer ids and values the peer representation as in [method get_peer].
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</description>
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</method>
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<method name="has_peer">
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<return type="bool" />
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<param index="0" name="peer_id" type="int" />
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<description>
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Returns [code]true[/code] if the given [param peer_id] is in the peers map (it might not be connected though).
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</description>
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</method>
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<method name="remove_peer">
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<return type="void" />
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<param index="0" name="peer_id" type="int" />
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<description>
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Remove the peer with given [param peer_id] from the mesh. If the peer was connected, and [signal MultiplayerPeer.peer_connected] was emitted for it, then [signal MultiplayerPeer.peer_disconnected] will be emitted.
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</description>
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</method>
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</methods>
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</class>
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