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56 lines
2.2 KiB
JavaScript
56 lines
2.2 KiB
JavaScript
//
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// messagesReceiverEntityExample.js
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// examples/entityScripts
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//
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// Created by Brad Hefta-Gaub on 11/18/15.
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// Copyright 2015 High Fidelity, Inc.
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//
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// This is an example of an entity script which when assigned to an entity, will detect when the entity is being grabbed by the hydraGrab script
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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(function () {
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var _this;
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var messageReceived = function (channel, message, senderID) {
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print("message received on channel:" + channel + ", message:" + message + ", senderID:" + senderID);
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};
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// this is the "constructor" for the entity as a JS object we don't do much here, but we do want to remember
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// our this object, so we can access it in cases where we're called without a this (like in the case of various global signals)
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MessagesReceiver = function () {
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_this = this;
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};
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MessagesReceiver.prototype = {
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// preload() will be called when the entity has become visible (or known) to the interface
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// it gives us a chance to set our local JavaScript object up. In this case it means:
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// * remembering our entityID, so we can access it in cases where we're called without an entityID
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// * unsubscribing from messages
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// * connectingf to the messageReceived signal
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preload: function (entityID) {
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this.entityID = entityID;
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print("---- subscribing ----");
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Messages.subscribe("example");
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Messages.messageReceived.connect(messageReceived);
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},
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// unload() will be called when the entity has become no longer known to the interface
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// it gives us a chance to clean up our local JavaScript object. In this case it means:
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// * unsubscribing from messages
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// * disconnecting from the messageReceived signal
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unload: function (entityID) {
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print("---- unsubscribing ----");
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Messages.unsubscribe("example");
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Messages.messageReceived.disconnect(messageReceived);
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},
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};
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// entity scripts always need to return a newly constructed object of our type
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return new MessagesReceiver();
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})
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