| Excerpt |
|---|
How to define a command handler function.... |
Syntax
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
var myHandler = function myHandler(command, player, message, conversationcdo) { // your code here // return a string or array of strings return "Command was: "+command; } |
Parameters
| Parameter | Type | Notes | Chat Ver |
|---|---|---|---|
| command | String | The command that was issued. You can create a single handler function and use it as the handler for multiple chat commands, switching internally on the command name.
| 0.1 |
| player | Number | The ID of the player that issued the command. This is particularly useful if you want to start a chat conversation with that player in response to the command they just issued. | 0.1 |
| message | Array of String | An array containing each word in the player's message. The string at message[0] will always be the command name (same as command parameter). If you want the full message as a single string, access it via: | 0.1 |
| conversationcdo | Conversation objectDescriptor Object | The conversation object associated with 'player' – see Conversation Mode for details. Note: If your command handler function is invoked, then obviously there isn't an active conversation with that player. The conversation object is provided in case you want to add some data to it and start a new conversation as a result of the command that was just invoked. | 0.1 |
Return Values
| Value | Type | Notes | Chat Ver |
|---|---|---|---|
| <string> | String | A single line chat message to send back to the player. | 0.1 |
| <array> | Array of String | A multi-line chat message to send back to the player. | 0.1 |
| Undefined Null | If your handler function returns nothing, no message will be sent back to the player. | 0.1 |
| <error> | Error | If an exception is thrown, the chat API will convert it in to a single line message and send back to the player. | 0.1 |
Example
| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
| ||||||||
var helpHandler = function helpHandler(command, player, message, cdo) { // command == message[0] == "help" // message[1] == second keyword (eg. 'foo' if user sent '.help foo') switch (message[1]) { case "foo": return "some help for foo"; case "bar": return "some help for bar"; default : return ["Type '.help <whatever>' where", "Where <whatever> can be either 'foo' or 'bar'"]; } } registerChatCommandchat.on("help", helpHandler); /* user can now send commands such as: .help = Type '.help <whatever>' where <whatever> can be either 'foo' or 'bar' .help foo = some help for foo .help bar = some help for bar */ |
| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
| ||||||||
var multiHandler = function multiHandler(command, player, message, cdo) { switch (command) { case "foo": return "command: foo"; case "bar": return "command: bar"; default : return "unknown command: "+command+" (which I don't understand)"; } } registerChatCommandchat.on("foo", multiHnadler); // .foo = command: foo registerChatCommandchat.on("bar", multiHandler); // .bar = command: bar registerChatCommandchat.on("moo", multiHandler); // .moo = unknown command: moo (which I don't understand) |