workadventure/docs/maps/api-room.md

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API Room functions Reference

Working with group layers

If you use group layers in your map, to reference a layer in a group you will need to use a / to join layer names together.

Example :

The name of the layers of this map are :

• entries/start
• bottom/ground/under
• bottom/build/carpet
• wall

Detecting when the user enters/leaves a zone

WA.room.onEnterZone(name: string, callback: () => void): void
WA.room.onLeaveZone(name: string, callback: () => void): void

Listens to the position of the current user. The event is triggered when the user enters or leaves a given zone. The name of the zone is stored in the map, on a dedicated layer with the zone property.

The `zone` property, applied on a layer

• name: the name of the zone, as defined in the zone property.
• callback: the function that will be called when a user enters or leaves the zone.

Example:

WA.room.onEnterZone('myZone', () => {
    WA.chat.sendChatMessage("Hello!", 'Mr Robot');
})

WA.room.onLeaveZone('myZone', () => {
    WA.chat.sendChatMessage("Goodbye!", 'Mr Robot');
})

Show / Hide a layer

WA.room.showLayer(layerName : string): void
WA.room.hideLayer(layerName : string) : void

These 2 methods can be used to show and hide a layer. if layerName is the name of a group layer, show/hide all the layer in that group layer.

Example :

WA.room.showLayer('bottom');
//...
WA.room.hideLayer('bottom');

Set/Create properties in a layer

WA.room.setProperty(layerName : string, propertyName : string, propertyValue : string | number | boolean | undefined) : void;

Set the value of the propertyName property of the layer layerName at propertyValue. If the property doesn't exist, create the property propertyName and set the value of the property at propertyValue.

Note : To unset a property from a layer, use setProperty with propertyValue set to undefined.

Example :

WA.room.setProperty('wikiLayer', 'openWebsite', 'https://www.wikipedia.org/');

Get the room id

WA.room.id: string;

The ID of the current room is available from the WA.room.id property.

{.alert.alert-info} You need to wait for the end of the initialization before accessing WA.room.id

WA.onInit().then(() => {
    console.log('Room id: ', WA.room.id);
    // Will output something like: 'https://play.workadventu.re/@/myorg/myworld/myroom', or 'https://play.workadventu.re/_/global/mymap.org/map.json"
})

Get the map URL

WA.room.mapURL: string;

The URL of the map is available from the WA.room.mapURL property.

{.alert.alert-info} You need to wait for the end of the initialization before accessing WA.room.mapURL

WA.onInit().then(() => {
    console.log('Map URL: ', WA.room.mapURL);
    // Will output something like: 'https://mymap.org/map.json"
})

Getting map data

WA.room.getTiledMap(): Promise<ITiledMap>

Returns a promise that resolves to the JSON map file.

const map = await WA.room.getTiledMap();
console.log("Map generated with Tiled version ", map.tiledversion);

Check the Tiled documentation to learn more about the format of the JSON map.

Changing tiles

WA.room.setTiles(tiles: TileDescriptor[]): void

Replace the tile at the x and y coordinates in the layer named layer by the tile with the id tile.

If tile is a string, it's not the id of the tile but the value of the property name.

TileDescriptor has the following attributes :

• x (number) : The coordinate x of the tile that you want to replace.
• y (number) : The coordinate y of the tile that you want to replace.
• tile (number | string) : The id of the tile that will be placed in the map.
• layer (string) : The name of the layer where the tile will be placed.

Important ! : If you use tile as a number, be sure to add the firstgid of the tileset of the tile that you want to the id of the tile in Tiled Editor.

Note: If you want to unset a tile, use setTiles with tile set to null.

Example :

WA.room.setTiles([
                {x: 6, y: 4, tile: 'blue', layer: 'setTiles'},
                {x: 7, y: 4, tile: 109, layer: 'setTiles'},
                {x: 8, y: 4, tile: 109, layer: 'setTiles'},
                {x: 9, y: 4, tile: 'blue', layer: 'setTiles'}
                ]);