scroll doesn't effect anything but where the view is centered--the coordinates of things on a layout are not effected by scroll.

The best way to understand scroll and to build your programming skill is to just deal with a few sprites at a time. Start a new project, put some sprites on a layout set one of them to drag and drop-- drag it around-- then set it to scroll and drag it around. You are best off understanding each behavior with just a few things in the project before you start combining them into a real game.

Just my 2 cents.

yours

winkr7

If you set the player sprite with the scroll behavior it will center it on the screen and the background will move behind it. You can do this with any movement behavior.

yours

winkr7

Hello Colludium;

The viscous behavior is supposed to clipped to 100 is that correct? If I set it to 590 it crashes the elastic demo.

-> ctrl: LFJS Turn Elastic behavior ON for spawning

// only added these two lines

-> ctrl: LFJS Turn Viscous behavior ON for spawning

-> ctrl: LFJS Particle system viscous strength: 590

// end addition

the console value is:

ncaught (in promise) RuntimeError: float unrepresentable in integer range

at wasm-function[513]:0x2aa3e

at wasm-function[559]:0x3605e

at wasm-function[445]:0x20694

at wasm-function[94]:0x54b3

You could set up a test program that walks through all the possible (and some not possible) values for all the variables and see what crashes it.

thanks for your time

yours

winrk7

Colludium;

Thanks for the quick response. It doesn't crash now, but the parameter doesn't seem to do anything. I assume it is clamped between 0 and 1.

Still, it is best not to crash. I have the feeling they left out the division by zero checks and reasonable value checks in the interest of speed. Do I get the clamp values from the google site?

thanks again.

yours

winkr7

Colludium

Thanks for the quick fix. You might want to consider the elastic reconstitution as part of the demo--it is really impressive to watch shapes rising up out of the sea.

yours

winkr7

I use it on android during my commute and on my PC. The cloud save makes it easy to pick right up where you left off on whatever machine you are on.

yours

winkr7

Hello Collodium;

I was using your elastic particle demo (see below for exact code) and I thought I would see what happens when the elastic particle group loses elasticity and melts and then regains it. This works fine for one group (just "tag" or "tag2") and its fun to watch it jump back together.

However when I do both at once it freezes and sends this message (see below) to the console.

thanks for your time.

yours

winkr7

+ System: On start of layout

-> ctrl: LFJS World: fixed step rate

-> ctrl: LFJS Set World Step 30 steps/sec FPS

-> ctrl: LFJS Set particle as the particle object

// The Elastic or Spring flags needs to be set before spawn otherwise they cannot be set later.

When the particles are created they are bound to their neighbors.

// This is all the Liquidfun documentation says about Elastic particles:

Elastic particles deform and may also bounce when they collide with rigid bodies.

From the cpp code, Elastic particles are connected in triads, or 3s.

-> ctrl: LFJS Turn Spring behavior OFF for spawning

-> ctrl: LFJS Turn Elastic behavior ON for spawning

-> ctrl: LFJS Particle group "tag" Rigid: ON

-> ctrl: LFJS Particle system elastic strength: 100

-> ctrl: LFJS Particle system spring strength: 100

-> ctrl: LFJS Set spawn color to rgba(250,140,30,255)

-> ctrl: LFJS Create particle "tag", shape box at 160, 300, width 200, height 200, angle 0

// This is what the documentation says about Spring particles:

Spring particles produce the effect of being attached to one another, as by a

spring. Particles are "connected" in pairs. Each particle is connected to the

one that was closest to it at time of creation. Once paired, particles do not

change "partners." The farther an external force pulls them from one another,

the greater the power with which they collide when that external force is

removed. No matter how far particles get from one another, the connection

between them does not "snap."

-> ctrl: LFJS Turn Spring behavior ON for spawning

-> ctrl: LFJS Turn Elastic behavior OFF for spawning

-> ctrl: LFJS Set spawn color to rgba(100,220,60,255)

-> ctrl: LFJS Create particle "tag2", shape box at 440, 300, width 200, height 200, angle 0

----+ (no conditions)

-----> System: Wait 4 seconds

--------+ (no conditions)

---------> ctrl: LFJS Group "tag" all particles set Elastic behavior OFF

---------> ctrl: LFJS Group "tag2" all particles set Spring behavior OFF

---------> System: Wait 4 seconds

---------> ctrl: LFJS Group "tag" all particles set Elastic behavior ON

---------> ctrl: LFJS Group "tag2" all particles set Spring behavior ON

// here is the freeze this is the console text :

dd5c0979-a104-4195-9e94-a6b37ce18f4c:1 Uncaught (in promise) RuntimeError: float unrepresentable in integer range

at wasm-function[475]:0x239ac

at wasm-function[514]:0x2b3cd

at wasm-function[559]:0x36193

at wasm-function[445]:0x20694

at wasm-function[94]:0x54b3

at _0x5bebeb.<computed> (blob:https://preview.construct.net/dd5c0979-a104-4195-9e94-a6b37ce18f4c:1:75982)

at _0x49a3a9.<computed>.Step (blob:https://preview.construct.net/dd5c0979-a104-4195-9e94-a6b37ce18f4c:1:131885)

at LFJSInstance.Tick (blob:https://preview.construct.net/7381ba8a-306d-4a33-abc7-1ceb43f5b5d1:2360:26)

at C3.Runtime._BehaviorTick (https://editor.construct.net/r171-3/preview/c3/runtime.js:1:25340)

at C3.Runtime.Step (https://editor.construct.net/r171-3/preview/c3/runtime.js:1:26912)

Hello;

Does anyone have any suggestions about an effect I can use to make the collection of particles blend to a liquid look? I think I have seen effects that give a blob of particles more of an edge and smooth out the small gaps in the liquid.

thanks

yours

winkr7

Colludium;

Yes, it looks like it is working on the elastic demo and the create particles demo.

thanks for the fix.

yours

winkr7

Colludium;

Thanks for the response and the example. Am I looking for a very subtle difference between 1 and 99 solid on and off?. I tried every combination in the example you sent and they all look the same--including leaving solid on and never shutting it down. I also don't see anything in the For the Particles - Create Singles.c3p so I suspect maybe I never did the install correctly. I will try it from scratch on my home computer and see if that makes a difference this evening. I can see other people have gotten the jello-like behavior to work so it must be possible.

thanks for your time.

yours

winkr7