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82 lines
No EOL
2.9 KiB
JavaScript
82 lines
No EOL
2.9 KiB
JavaScript
//
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// eraserEntityScript.js
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// examples/homeContent/eraserEntityScript
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//
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// Created by Eric Levin on 2/17/15.
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// Copyright 2016 High Fidelity, Inc.
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//
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// This entity script provides logic for an object with attached script to erase nearby marker strokes
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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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(function() {
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Script.include("../../libraries/utils.js");
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var TRIGGER_CONTROLS = [
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Controller.Standard.LT,
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Controller.Standard.RT,
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];
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var _this;
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Eraser = function() {
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_this = this;
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_this.ERASER_TRIGGER_THRESHOLD = 0.2;
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_this.STROKE_NAME = "hifi-marker-stroke";
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_this.ERASER_TO_STROKE_SEARCH_RADIUS = 0.7;
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_this.strokeMap = [];
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};
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Eraser.prototype = {
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startEquip: function(id, params) {
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_this.equipped = true;
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_this.hand = params[0] == "left" ? 0 : 1;
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// We really only need to grab position of marker strokes once, and then just check to see if eraser comes near enough to those strokes
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var eraserPosition = Entities.getEntityProperties(_this.entityID, "position").position;
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var strokeIDs = Entities.findEntities(eraserPosition, _this.ERASER_TO_STROKE_SEARCH_RADIUS);
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// Create a map of stroke entities and their positions
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strokeIDs.forEach(function(strokeID) {
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var strokeProps = Entities.getEntityProperties(strokeID, ["position", "name"]);
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if (strokeProps.name === _this.STROKE_NAME) {
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_this.strokeMap.push({
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strokeID: strokeID,
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strokePosition: strokeProps.position
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});
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}
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});
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},
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continueEquip: function() {
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this.triggerValue = Controller.getValue(TRIGGER_CONTROLS[_this.hand]);
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if (_this.triggerValue > _this.ERASER_TRIGGER_THRESHOLD) {
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_this.continueHolding();
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} else {}
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},
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releaseEquip: function() {
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_this.strokeMap = [];
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},
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continueHolding: function() {
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// search for marker strokes within certain radius of eraser
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var eraserPosition = Entities.getEntityProperties(_this.entityID, "position").position;
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_this.strokeMap.forEach(function(strokeData, index) {
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if (Vec3.distance(eraserPosition, strokeData.strokePosition) < _this.ERASER_TO_STROKE_SEARCH_RADIUS) {
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Entities.deleteEntity(strokeData.strokeID);
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_this.strokeMap.splice(index, 1);
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}
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})
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},
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preload: function(entityID) {
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this.entityID = entityID;
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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 Eraser();
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}); |