Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-04-08 08:14:48 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Add directionality to examples/growth

Browse source 
*There is a bug in here, but it may be in Interface.*
The sphere entities have a lifetime of 60s.
The first time the script is run, each click fires one clickReleaseOnEntity event.
If the entities expire (lifetime is reached), and the script is rerun a second time,
each click will fire two clickReleaseOnEntity events.
If this is repeated (waiting for expiration each time), then
the N-th repetition will fire N clickReleaseOnEntity events.
Note that each entity, across runs, has a unique uuid, as expected.
This commit is contained in:
Zach Pomerantz 2015-11-11 22:32:42 -08:00
parent df4be6c0ba
commit 33851baa3f
1 changed files with 58 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

69
examples/growth.js
View file

@ -8,40 +8,87 @@
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
var RADIUS = 5;
var LIFETIME = 6000;
var LIFETIME = 60; // only keep these entities around for a minute
var SIZE = 1; // starting size
var SIZE_MAX = 3;
var SIZE_MIN = 0.5;
var size = 1;
var center = MyAvatar.position;
var positions = [
Vec3.sum(center, Vec3.multiply(RADIUS, Vec3.FRONT)),
Vec3.sum(center, Vec3.multiply(-RADIUS, Vec3.FRONT)),
Vec3.sum(center, Vec3.multiply(RADIUS, Vec3.RIGHT)),
Vec3.sum(center, Vec3.multiply(-RADIUS, Vec3.RIGHT)),
Vec3.sum(center, Vec3.multiply(RADIUS, Vec3.UP)),
Vec3.sum(center, Vec3.multiply(-RADIUS, Vec3.UP)),
];
// Create spheres around the avatar
var spheres = map(positions, getSphere);
Script.update.connect(function(delta) {
size += delta; // grow by 1 unit/s
each(spheres, function(sphere) {
Entities.editEntity(sphere, { dimensions: getDimensions(size) });
});
// Toggle sphere growth
each(spheres, function(sphere) {
var state = {
size: SIZE,
grow: true, // grow/shrink
state: false, // mutate/pause
};
// Grow or shrink on click
Script.addEventHandler(sphere, 'clickReleaseOnEntity', toggleGrowth);
// TODO: Toggle on collisions as well
function toggleGrowth() {
if (state.state) {
stop();
} else {
start();
}
}
function start() {
var verb = state.grow ? 'grow' : 'shrink';
print('starting to '+verb+' '+sphere);
Script.update.connect(grow);
state.state = true;
}
function stop() {
print('stopping '+sphere);
Script.update.disconnect(grow);
state.state = false;
state.grow = !state.grow;
}
function grow(delta) {
if ((state.grow && state.size > SIZE_MAX) || // cannot grow more
(!state.grow && state.size < SIZE_MIN)) { // cannot shrink more
stop();
return;
}
state.size += (state.grow ? 1 : -1) * delta; // grow/shrink
Entities.editEntity(sphere, { dimensions: getDimensions(state.size) });
}
});
Script.scriptEnding.connect(function() {
Script.scriptEnding.connect(function() { // cleanup
each(spheres, function(sphere) {
Entities.deleteEntity(sphere);
});
});
// NOTE: Everything below this line is a helper.
// The basic logic of this example is entirely above this note.
// Entity helpers
function getSphere(position) {
return Entities.addEntity({
type: 'Sphere',
position: position,
dimensions: getDimensions(size),
dimensions: getDimensions(SIZE),
color: getColor(),
gravity: Vec3.ZERO,
lifetime: LIFETIME,