(function() { // touch.js // // Sample file using tractor action, haptic vibration, and color change to demonstrate two spheres // That can give a sense of touch to the holders. // Create two standard spheres, make them grabbable, and attach this entity script. Grab them and touch them together. // // Created by Philip Rosedale on March 18, 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 // var TIMESCALE = 0.03; var ACTION_TTL = 10; var _this; var RIGHT_HAND = 1; var LEFT_HAND = 0; var HAPTIC_PULSE_FIRST_STRENGTH = 0.5; var HAPTIC_PULSE_MIN_STRENGTH = 0.20; var HAPTIC_PULSE_MAX_STRENGTH = 0.5; var HAPTIC_PULSE_FIRST_DURATION = 1.0; var HAPTIC_PULSE_DURATION = 16.0; var HAPTIC_PULSE_DISTANCE = 0.0; var MAX_PENETRATION = 0.02; var HAPTIC_MIN_VELOCITY = 0.002; var HAPTIC_MAX_VELOCITY = 0.5; var PENETRATION_PULLBACK_FACTOR = 0.65; var FRAME_TIME = 0.016; var isColliding = false; var hand = LEFT_HAND; var lastHapticPulseLocation = { x:0, y:0, z:0 }; var GRAY = { red: 128, green: 128, blue: 128 }; var RED = { red: 255, green: 0, blue: 0 }; var targetColor = { x: GRAY.red, y: GRAY.green, z: GRAY.blue }; var lastPosition = { x: 0, y: 0, z: 0 }; var velocity = { x: 0, y: 0, z: 0 }; var lastOtherPosition = { x: 0, y: 0, z: 0 }; var otherVelocity = { x: 0, y: 0, z: 0 }; function TouchExample() { _this = this; } function updateTractorAction(timescale) { var targetProps = Entities.getEntityProperties(_this.entityID); // // Look for nearby entities to touch // var copyProps = Entities.getEntityProperties(_this.copy); var nearbyEntities = Entities.findEntities(copyProps.position, copyProps.dimensions.x * 2); var wasColliding = isColliding; var targetAdjust = { x: 0, y: 0, z: 0 }; isColliding = false; for (var i = 0; i < nearbyEntities.length; i++) { if (_this.copy != nearbyEntities[i] && _this.entityID != nearbyEntities[i]) { var otherProps = Entities.getEntityProperties(nearbyEntities[i]); var penetration = Vec3.distance(copyProps.position, otherProps.position) - (copyProps.dimensions.x / 2 + otherProps.dimensions.x / 2); if (otherProps.type === 'Sphere' && penetration < 0 && penetration > -copyProps.dimensions.x * 3) { isColliding = true; targetAdjust = Vec3.sum(targetAdjust, Vec3.multiply(Vec3.normalize(Vec3.subtract(targetProps.position, otherProps.position)), -penetration * PENETRATION_PULLBACK_FACTOR)); if (!wasColliding && false) { targetColor = { x: RED.red, y: RED.green, z: RED.blue }; } else { targetColor = { x: 200 + Math.min(-penetration / MAX_PENETRATION, 1.0) * 55, y: GRAY.green, z: GRAY.blue }; } if (Vec3.distance(targetProps.position, lastHapticPulseLocation) > HAPTIC_PULSE_DISTANCE || !wasColliding) { if (!wasColliding) { velocity = { x: 0, y: 0, z: 0}; otherVelocity = { x: 0, y: 0, z: 0 }; Controller.triggerHapticPulse(HAPTIC_PULSE_FIRST_STRENGTH, HAPTIC_PULSE_FIRST_DURATION, hand); } else { velocity = Vec3.distance(targetProps.position, lastPosition) / FRAME_TIME; otherVelocity = Vec3.distance(otherProps.position, lastOtherPosition) / FRAME_TIME; var velocityStrength = Math.min(velocity + otherVelocity / HAPTIC_MAX_VELOCITY, 1.0); var strength = HAPTIC_PULSE_MIN_STRENGTH + Math.min(-penetration / MAX_PENETRATION, 1.0) * (HAPTIC_PULSE_MAX_STRENGTH - HAPTIC_PULSE_MIN_STRENGTH); Controller.triggerHapticPulse(velocityStrength * strength, HAPTIC_PULSE_DURATION, hand); } lastPosition = targetProps.position; lastOtherPosition = otherProps.position; lastHapticPulseLocation = targetProps.position; } } } } if ((wasColliding != isColliding) && !isColliding) { targetColor = { x: GRAY.red, y: GRAY.green, z: GRAY.blue }; } // Interpolate color toward target color var currentColor = { x: copyProps.color.red, y: copyProps.color.green, z: copyProps.color.blue }; var newColor = Vec3.sum(currentColor, Vec3.multiply(Vec3.subtract(targetColor, currentColor), 0.1)); Entities.editEntity(_this.copy, { color: { red: newColor.x, green: newColor.y, blue: newColor.z } }); var props = { targetPosition: Vec3.sum(targetProps.position, targetAdjust), targetRotation: targetProps.rotation, linearTimeScale: timescale, angularTimeScale: timescale, ttl: ACTION_TTL }; var success = Entities.updateAction(_this.copy, _this.actionID, props); } function createTractorAction(timescale) { var targetProps = Entities.getEntityProperties(_this.entityID); var props = { targetPosition: targetProps.position, targetRotation: targetProps.rotation, linearTimeScale: timescale, angularTimeScale: timescale, ttl: ACTION_TTL }; _this.actionID = Entities.addAction("tractor", _this.copy, props); return; } function createCopy() { var originalProps = Entities.getEntityProperties(_this.entityID); var props = { type: originalProps.type, modelURL: originalProps.modelURL, dimensions: originalProps.dimensions, color: GRAY, dynamic: true, damping: 0.0, angularDamping: 0.0, collidesWith: 'static', rotation: originalProps.rotation, position: originalProps.position, shapeType: originalProps.shapeType, visible: true, grab: { grabbable: false } }; _this.copy = Entities.addEntity(props); } function deleteCopy() { print("Delete copy"); Entities.deleteEntity(_this.copy); } function makeOriginalInvisible() { Entities.editEntity(_this.entityID, { visible: false, collisionless: true }); } function makeOriginalVisible() { Entities.editEntity(_this.entityID, { visible: true, collisionless: false }); } function deleteTractorAction() { Entities.deleteAction(_this.copy, _this.actionID); } function setHand(position) { if (Vec3.distance(MyAvatar.getLeftPalmPosition(), position) < Vec3.distance(MyAvatar.getRightPalmPosition(), position)) { hand = LEFT_HAND; } else { hand = RIGHT_HAND; } } TouchExample.prototype = { preload: function(entityID) { _this.entityID = entityID; }, startNearGrab: function(entityID, data) { createCopy(); createTractorAction(TIMESCALE); makeOriginalInvisible(); setHand(Entities.getEntityProperties(_this.entityID).position); }, continueNearGrab: function() { updateTractorAction(TIMESCALE); }, releaseGrab: function() { deleteTractorAction(); deleteCopy(); makeOriginalVisible(); } }; return new TouchExample();});
(function() {
// touch.js
//
// Sample file using tractor action, haptic vibration, and color change to demonstrate two spheres
// That can give a sense of touch to the holders.
// Create two standard spheres, make them grabbable, and attach this entity script. Grab them and touch them together.
//
// Created by Philip Rosedale on March 18, 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
//
var TIMESCALE = 0.03;
var ACTION_TTL = 10;
var _this;
var RIGHT_HAND = 1;
var LEFT_HAND = 0;
var HAPTIC_PULSE_FIRST_STRENGTH = 0.5;
var HAPTIC_PULSE_MIN_STRENGTH = 0.20;
var HAPTIC_PULSE_MAX_STRENGTH = 0.5;
var HAPTIC_PULSE_FIRST_DURATION = 1.0;
var HAPTIC_PULSE_DURATION = 16.0;
var HAPTIC_PULSE_DISTANCE = 0.0;
var MAX_PENETRATION = 0.02;
var HAPTIC_MIN_VELOCITY = 0.002;
var HAPTIC_MAX_VELOCITY = 0.5;
var PENETRATION_PULLBACK_FACTOR = 0.65;
var FRAME_TIME = 0.016;
var isColliding = false;
var hand = LEFT_HAND;
var lastHapticPulseLocation = { x:0, y:0, z:0 };
var GRAY = { red: 128, green: 128, blue: 128 };
var RED = { red: 255, green: 0, blue: 0 };
var targetColor = { x: GRAY.red, y: GRAY.green, z: GRAY.blue };
var lastPosition = { x: 0, y: 0, z: 0 };
var velocity = { x: 0, y: 0, z: 0 };
var lastOtherPosition = { x: 0, y: 0, z: 0 };
var otherVelocity = { x: 0, y: 0, z: 0 };
function TouchExample() {
_this = this;
}
function updateTractorAction(timescale) {
var targetProps = Entities.getEntityProperties(_this.entityID);
//
// Look for nearby entities to touch
//
var copyProps = Entities.getEntityProperties(_this.copy);
var nearbyEntities = Entities.findEntities(copyProps.position, copyProps.dimensions.x * 2);
var wasColliding = isColliding;
var targetAdjust = { x: 0, y: 0, z: 0 };
isColliding = false;
for (var i = 0; i < nearbyEntities.length; i++) {
if (_this.copy != nearbyEntities[i] && _this.entityID != nearbyEntities[i]) {
var otherProps = Entities.getEntityProperties(nearbyEntities[i]);
var penetration = Vec3.distance(copyProps.position, otherProps.position) - (copyProps.dimensions.x / 2 + otherProps.dimensions.x / 2);
if (otherProps.type === 'Sphere' && penetration < 0 && penetration > -copyProps.dimensions.x * 3) {
isColliding = true;
targetAdjust = Vec3.sum(targetAdjust, Vec3.multiply(Vec3.normalize(Vec3.subtract(targetProps.position, otherProps.position)), -penetration * PENETRATION_PULLBACK_FACTOR));
if (!wasColliding && false) {
targetColor = { x: RED.red, y: RED.green, z: RED.blue };
} else {
targetColor = { x: 200 + Math.min(-penetration / MAX_PENETRATION, 1.0) * 55, y: GRAY.green, z: GRAY.blue };
}
if (Vec3.distance(targetProps.position, lastHapticPulseLocation) > HAPTIC_PULSE_DISTANCE || !wasColliding) {
if (!wasColliding) {
velocity = { x: 0, y: 0, z: 0};
otherVelocity = { x: 0, y: 0, z: 0 };
Controller.triggerHapticPulse(HAPTIC_PULSE_FIRST_STRENGTH, HAPTIC_PULSE_FIRST_DURATION, hand);
} else {
velocity = Vec3.distance(targetProps.position, lastPosition) / FRAME_TIME;
otherVelocity = Vec3.distance(otherProps.position, lastOtherPosition) / FRAME_TIME;
var velocityStrength = Math.min(velocity + otherVelocity / HAPTIC_MAX_VELOCITY, 1.0);
var strength = HAPTIC_PULSE_MIN_STRENGTH + Math.min(-penetration / MAX_PENETRATION, 1.0) * (HAPTIC_PULSE_MAX_STRENGTH - HAPTIC_PULSE_MIN_STRENGTH);
Controller.triggerHapticPulse(velocityStrength * strength, HAPTIC_PULSE_DURATION, hand);
}
lastPosition = targetProps.position;
lastOtherPosition = otherProps.position;
lastHapticPulseLocation = targetProps.position;
}
}
}
}
if ((wasColliding != isColliding) && !isColliding) {
targetColor = { x: GRAY.red, y: GRAY.green, z: GRAY.blue };
}
// Interpolate color toward target color
var currentColor = { x: copyProps.color.red, y: copyProps.color.green, z: copyProps.color.blue };
var newColor = Vec3.sum(currentColor, Vec3.multiply(Vec3.subtract(targetColor, currentColor), 0.1));
Entities.editEntity(_this.copy, { color: { red: newColor.x, green: newColor.y, blue: newColor.z } });
var props = {
targetPosition: Vec3.sum(targetProps.position, targetAdjust),
targetRotation: targetProps.rotation,
linearTimeScale: timescale,
angularTimeScale: timescale,
ttl: ACTION_TTL
};
var success = Entities.updateAction(_this.copy, _this.actionID, props);
}
function createTractorAction(timescale) {
var targetProps = Entities.getEntityProperties(_this.entityID);
var props = {
targetPosition: targetProps.position,
targetRotation: targetProps.rotation,
linearTimeScale: timescale,
angularTimeScale: timescale,
ttl: ACTION_TTL
};
_this.actionID = Entities.addAction("tractor", _this.copy, props);
return;
}
function createCopy() {
var originalProps = Entities.getEntityProperties(_this.entityID);
var props = {
type: originalProps.type,
modelURL: originalProps.modelURL,
dimensions: originalProps.dimensions,
color: GRAY,
dynamic: true,
damping: 0.0,
angularDamping: 0.0,
collidesWith: 'static',
rotation: originalProps.rotation,
position: originalProps.position,
shapeType: originalProps.shapeType,
visible: true,
grab: { grabbable: false }
};
_this.copy = Entities.addEntity(props);
}
function deleteCopy() {
print("Delete copy");
Entities.deleteEntity(_this.copy);
}
function makeOriginalInvisible() {
Entities.editEntity(_this.entityID, {
visible: false,
collisionless: true
});
}
function makeOriginalVisible() {
Entities.editEntity(_this.entityID, {
visible: true,
collisionless: false
});
}
function deleteTractorAction() {
Entities.deleteAction(_this.copy, _this.actionID);
}
function setHand(position) {
if (Vec3.distance(MyAvatar.getLeftPalmPosition(), position) < Vec3.distance(MyAvatar.getRightPalmPosition(), position)) {
hand = LEFT_HAND;
} else {
hand = RIGHT_HAND;
}
}
TouchExample.prototype = {
preload: function(entityID) {
_this.entityID = entityID;
},
startNearGrab: function(entityID, data) {
createCopy();
createTractorAction(TIMESCALE);
makeOriginalInvisible();
setHand(Entities.getEntityProperties(_this.entityID).position);
},
continueNearGrab: function() {
updateTractorAction(TIMESCALE);
},
releaseGrab: function() {
deleteTractorAction();
deleteCopy();
makeOriginalVisible();
}
};
return new TouchExample();
});