overte-HifiExperiments/examples/homeContent/plant/growingPlantEntityScript.js

//
//  growingPlantEntityScript.js
//  examples/homeContent/plant
//
//  Created by Eric Levin on 2/10/16.
//  Copyright 2016 High Fidelity, Inc.
//
//  This entity script handles the logic for growing a plant when it has water poured on it
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html



(function() {
    Script.include("../../libraries/utils.js");

    var _this;
    GrowingPlant = function() {
        _this = this;
        _this.flowers = [];
        // _this.STARTING_FLOWER_DIMENSIONS = {x: 0.1, y: 0.001, z: 0.1}
        _this.STARTING_FLOWER_DIMENSIONS = {x: 0.2, y: 0.01, z: 0.2}

    };

    GrowingPlant.prototype = {


        continueWatering: function(entityID, data) {
            // we're being watered- every now and then spawn a new flower to add to our growing list
            // If we don't have any flowers yet, immediately grow one
            var data = JSON.parse(data[0]);
            if (_this.flowers.length <  1000) {

                _this.createFlower(data.position, data.surfaceNormal);
            }

            _this.flowers.forEach( function(flower) {
                flower.grow();   
            });


        },

        createFlower: function(position, surfaceNormal) {
            var flowerRotation = Quat.rotationBetween(Vec3.UNIT_Y, surfaceNormal);
            print("flower rotation " + flowerRotation.x)
            var flowerEntityID = Entities.addEntity({
                type: "Sphere",
                name: "flower",
                position: position,
                rotation: flowerRotation,
                dimensions: _this.STARTING_FLOWER_DIMENSIONS,
                userData: JSON.stringify(_this.flowerUserData)
            });

            var flower = {id: flowerEntityID, dimensions: _this.STARTING_FLOWER_DIMENSIONS, startingPosition: position, rotation: flowerRotation};
            flower.grow = function() {
                // grow flower a bit
                flower.dimensions.y += 0.001;
                flower.position = Vec3.sum(flower.startingPosition, Vec3.multiply(Quat.getUp(flower.rotation), flower.dimensions.y/2));
                //As we grow we must also move ourselves in direction we grow!
                Entities.editEntity(flower.id, {dimensions: flower.dimensions, position: flower.position});
            }
            _this.flowers.push(flower);
        },

        preload: function(entityID) {
            _this.entityID = entityID;
            _this.flowerUserData = {
                ProceduralEntity: {
                    shaderUrl: "https://s3-us-west-1.amazonaws.com/hifi-content/eric/shaders/flower.fs",
                    uniforms: {
                        iBloomPct: randFloat(0.4, 0.8),
                        hueTwerking: randFloat(10, 30)
                    }
                }
            };
        },

        unload: function() {
            _this.flowers.forEach(function(flower) {
                Entities.deleteEntity(flower.id);
            })


        }

    };

    // entity scripts always need to return a newly constructed object of our type
    return new GrowingPlant();
});