//// magneticBlock.js//// Created by Matti Lahtinen 4/3/2017// Copyright 2017 High Fidelity, Inc.////// Distributed under the Apache License, Version 2.0.// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html//// Makes the entity the script is bound to connect to nearby, similarly sized entities, like a magnet.(function() { var SNAPSOUND_SOURCE = SoundCache.getSound(Script.resolvePath("../../system/assets/sounds/entitySnap.wav?xrs")); var RANGE_MULTIPLER = 1.5; var MAX_SCALE = 2; var MIN_SCALE = 0.5; // Helper for detecting nearby objects near entityProperties, with the scale calculated by the dimensions of the object. function findEntitiesInRange(entityProperties) { var dimensions = entityProperties.dimensions; // Average of the dimensions instead of full value. return Entities.findEntities(entityProperties.position, ((dimensions.x + dimensions.y + dimensions.z) / 3) * RANGE_MULTIPLER); } function getNearestValidEntityProperties(releasedProperties) { var entities = findEntitiesInRange(releasedProperties); var nearestEntity = null; var nearest = Number.MAX_VALUE - 1; var releaseSize = Vec3.length(releasedProperties.dimensions); entities.forEach(function(entityId) { if (entityId !== releasedProperties.id) { var entity = Entities.getEntityProperties(entityId, ['position', 'rotation', 'dimensions']); var distance = Vec3.distance(releasedProperties.position, entity.position); var scale = releaseSize / Vec3.length(entity.dimensions); if (distance < nearest && (scale >= MIN_SCALE && scale <= MAX_SCALE)) { nearestEntity = entity; nearest = distance; } } }); return nearestEntity; } // Create the 'class' function MagneticBlock() {} // Bind pre-emptive events MagneticBlock.prototype = { /* When script is bound to an entity, preload is the first callback called with the entityID. It will behave as the constructor */ preload: function(id) { // Apply the new properties to entity of id Entities.editEntity(id, { grab: { grabbable: true } }); Script.scriptEnding.connect(function() { Script.removeEventHandler(id, "releaseGrab", this.releaseGrab); }); }, releaseGrab: function(entityId) { // Release grab is called with entityId, var released = Entities.getEntityProperties(entityId, ["position", "rotation", "dimensions"]); var target = getNearestValidEntityProperties(released); if (target !== null) { // We found nearest, now lets do the snap calculations // Plays the snap sound between the two objects. Audio.playSound(SNAPSOUND_SOURCE, { volume: 1, position: Vec3.mix(target.position, released.position, 0.5) }); // Check Nearest Axis var difference = Vec3.subtract(released.position, target.position); var relativeDifference = Vec3.multiplyQbyV(Quat.inverse(target.rotation), difference); var abs = { x: Math.abs(relativeDifference.x), y: Math.abs(relativeDifference.y), z: Math.abs(relativeDifference.z) }; // Check what value is greater. and lock down to that axis. var newRelative = { x: 0, y: 0, z: 0 }; if (abs.x >= abs.y && abs.x >= abs.z) { newRelative.x = target.dimensions.x / 2 + released.dimensions.x / 2; if (relativeDifference.x < 0) { newRelative.x = -newRelative.x; } } else if (abs.y >= abs.x && abs.y >= abs.z) { newRelative.y = target.dimensions.y / 2 + released.dimensions.y / 2; if (relativeDifference.y < 0) { newRelative.y = -newRelative.y; } } else if (abs.z >= abs.x && abs.z >= abs.y) { newRelative.z = target.dimensions.z / 2 + released.dimensions.z / 2; if (relativeDifference.z < 0) { newRelative.z = -newRelative.z; } } // Can be expanded upon to work in nearest 90 degree rotation as well, but was not in spec. var newPosition = Vec3.multiplyQbyV(target.rotation, newRelative); Entities.editEntity(entityId, { // Script relies on the registrationPoint being at the very center of the object. Thus override. registrationPoint: { x: 0.5, y: 0.5, z: 0.5 }, rotation: target.rotation, position: Vec3.sum(target.position, newPosition) }); // Script relies on the registrationPoint being at the very center of the object. Thus override. Entities.editEntity(target.id, { registrationPoint: { x: 0.5, y: 0.5, z: 0.5 } }); } } }; return new MagneticBlock();});
//
// magneticBlock.js
//
// Created by Matti Lahtinen 4/3/2017
// Copyright 2017 High Fidelity, Inc.
//
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
// Makes the entity the script is bound to connect to nearby, similarly sized entities, like a magnet.
(function() {
var SNAPSOUND_SOURCE = SoundCache.getSound(Script.resolvePath("../../system/assets/sounds/entitySnap.wav?xrs"));
var RANGE_MULTIPLER = 1.5;
var MAX_SCALE = 2;
var MIN_SCALE = 0.5;
// Helper for detecting nearby objects near entityProperties, with the scale calculated by the dimensions of the object.
function findEntitiesInRange(entityProperties) {
var dimensions = entityProperties.dimensions;
// Average of the dimensions instead of full value.
return Entities.findEntities(entityProperties.position,
((dimensions.x + dimensions.y + dimensions.z) / 3) * RANGE_MULTIPLER);
}
function getNearestValidEntityProperties(releasedProperties) {
var entities = findEntitiesInRange(releasedProperties);
var nearestEntity = null;
var nearest = Number.MAX_VALUE - 1;
var releaseSize = Vec3.length(releasedProperties.dimensions);
entities.forEach(function(entityId) {
if (entityId !== releasedProperties.id) {
var entity = Entities.getEntityProperties(entityId, ['position', 'rotation', 'dimensions']);
var distance = Vec3.distance(releasedProperties.position, entity.position);
var scale = releaseSize / Vec3.length(entity.dimensions);
if (distance < nearest && (scale >= MIN_SCALE && scale <= MAX_SCALE)) {
nearestEntity = entity;
nearest = distance;
}
}
});
return nearestEntity;
}
// Create the 'class'
function MagneticBlock() {}
// Bind pre-emptive events
MagneticBlock.prototype = {
/*
When script is bound to an entity, preload is the first callback called with the entityID.
It will behave as the constructor
*/
preload: function(id) {
// Apply the new properties to entity of id
Entities.editEntity(id, { grab: { grabbable: true } });
Script.scriptEnding.connect(function() {
Script.removeEventHandler(id, "releaseGrab", this.releaseGrab);
});
},
releaseGrab: function(entityId) {
// Release grab is called with entityId,
var released = Entities.getEntityProperties(entityId, ["position", "rotation", "dimensions"]);
var target = getNearestValidEntityProperties(released);
if (target !== null) {
// We found nearest, now lets do the snap calculations
// Plays the snap sound between the two objects.
Audio.playSound(SNAPSOUND_SOURCE, {
volume: 1,
position: Vec3.mix(target.position, released.position, 0.5)
});
// Check Nearest Axis
var difference = Vec3.subtract(released.position, target.position);
var relativeDifference = Vec3.multiplyQbyV(Quat.inverse(target.rotation), difference);
var abs = {
x: Math.abs(relativeDifference.x),
y: Math.abs(relativeDifference.y),
z: Math.abs(relativeDifference.z)
};
// Check what value is greater. and lock down to that axis.
var newRelative = {
x: 0,
y: 0,
z: 0
};
if (abs.x >= abs.y && abs.x >= abs.z) {
newRelative.x = target.dimensions.x / 2 + released.dimensions.x / 2;
if (relativeDifference.x < 0) {
newRelative.x = -newRelative.x;
}
} else if (abs.y >= abs.x && abs.y >= abs.z) {
newRelative.y = target.dimensions.y / 2 + released.dimensions.y / 2;
if (relativeDifference.y < 0) {
newRelative.y = -newRelative.y;
}
} else if (abs.z >= abs.x && abs.z >= abs.y) {
newRelative.z = target.dimensions.z / 2 + released.dimensions.z / 2;
if (relativeDifference.z < 0) {
newRelative.z = -newRelative.z;
}
}
// Can be expanded upon to work in nearest 90 degree rotation as well, but was not in spec.
var newPosition = Vec3.multiplyQbyV(target.rotation, newRelative);
Entities.editEntity(entityId, {
// Script relies on the registrationPoint being at the very center of the object. Thus override.
registrationPoint: {
x: 0.5,
y: 0.5,
z: 0.5
},
rotation: target.rotation,
position: Vec3.sum(target.position, newPosition)
});
// Script relies on the registrationPoint being at the very center of the object. Thus override.
Entities.editEntity(target.id, {
registrationPoint: {
x: 0.5,
y: 0.5,
z: 0.5
}
});
}
}
};
return new MagneticBlock();
});