虚幻引擎RPC

结合官方图表解释虚幻引擎RPC

Calling Machine:你在那个机器上调用RPC函数

Owning Connection:你在哪个机器上控制角色

Executing Machine:RPC函数会在哪里执行

Invoking Client:调用函数的那个客户端

Server RPC

Calling Machine	Owning Connection	Executing Machine
Server	Client	Server
Server	Server	Server
Server	None	Server
Client	Invoking Client	Server
Client	Different Client	Dropped
Client	Server	Dropped
Client	None	Dropped

第一行解读:

在Server上调用ServerRPC,玩家在Client上控制角色,则会在Server上执行

以此类推...

它的执行一般是在服务器

Client RPC

Calling Machine	Owning Connection	Executing Machine
Server	Owning Client	Owning Client
Server	Server	Server
Server	None	Server
Client	Invoking Client	Invoking Client
Client	Different Client	Invoking Client
Client	Server	Invoking Client
Client	None	Invoking Client

它的执行一般是在客户端

Remote RPC

Calling Machine	Owning Connection	Executing Machine
Server	Owning Client	Owning Client
Server	Server	Dropped
Server	None	Dropped
Client	Invoking Client	Server
Client	Different Client	Dropped
Client	Server	Dropped
Client	None	Dropped

RemoteRPC

只能在服务器 调用 在玩家控制的客户端 上执行

或者在玩家控制的客户端 调用 在服务器 上执行

注意在服务器上控制的玩家 调用RemoteRPC 会失效

其他情况 也会失效

Net Multicast RPC

Calling Machine	Owning Connection	Executing Machine
Server	Client	Server and all Clients the invoking actor is relevant for
Server	Server	Server and all Clients the invoking actor is relevant for
Server	None	Server and all Clients the invoking actor is relevant for
Client	Invoking Client	Invoking Client
Client	Different Client	Invoking Client
Client	Server	Invoking Client
Client	None	Invoking Client

在服务器 调用NetMulticastRPC会让所有机器执行

而在客户端 调用NetMulticastRPC只会在调用RPC的那个客户端上执行(变为普通函数)