Awesome! it all seems to be workin great now.. thanks man, you are legendary

The reason why only one gets opacity reduced is because one of the balls still has itself in CollisionOtherObject.

I changed the cap so both balls get lifted away from the ground and made the text display the first number is Ball.UID then the next numbers are CollisionOtherObject

So here, 12 and 13 are colliding, but they both have 13 as their CollisionOtherObject

https://dl.dropboxusercontent.com/u/533 ... jBug2.webm

https://www.dropbox.com/s/qkbi7a4amw3ap ... capx?raw=1

Yea, I tested it a bit more and found that all of the objects' other collisions get replaced by itself:

https://dl.dropboxusercontent.com/u/533 ... bjBug.webm

https://www.dropbox.com/s/lp6i6sm0027vw ... capx?raw=1

Filtering out with CollisionOtherObj != Ball.uid is a good idea for the ball itself but my real problem is how it loses collision with the ground

The object used with the for each collision pair is always the first object. So it just loops over collisions with that object type.

i'm really confused by this sentence, it sounds like you're saying that on every iteration of the For each collision pair loop, that the CollisionOtherObj is always the same, first object? but i know that isn't true..

I made a tiny capx with my problem, it's a little different to what i originally said because I used ball/box for ease of explanation, but really it's multiple of the same type of object so maybe that's relevant?

I made it so For each Ball, For each collision pair, lower the opacity of the CollisionOtherObj. The behaviour I expected (and need) was for everything that is touching the ball to get lower opacity, and this seems to work until two balls touch (lol), then the one that stayed in contact with the ground somehow seems to be only be picking itself in it's CollisionOtherObj, or does it remain in the other balls CollisionOtherObj?

If this isn't a bug and i'm just misunderstanding, then how would I go about achieving what I described, where the ground below the ball remains low opac even when the ball collides with another on top of it

https://www.dropbox.com/s/3w1ibhpakix8l ... capx?raw=1

Here's a vid of what I described

https://dl.dropboxusercontent.com/u/533 ... oblem.webm

thanks!

is there a neat way to get the UID of the other object within a 'for each collision pair' loop?

so kinda like .ContactOtherObj

.CollisionOtherObj does not work because:

1. Box comes into contact with Ground, so Box.CollisionOtherObj becomes the Ground.UID

2. Ball hits Box, so Box.CollisionOtherObj now changes to Ball.UID

3. The Box remained in contact with ground

So now, even though the Box is still in contact with Ground, and we can get other data about the contact with Ground, we can no longer get the Ground.UID. Or at least it doesn't seem like it?

thanks!

btw sorry for not getting back to you about that error message a while ago, it just stopped happening completely shortly after I posted and I have no idea ¯\_(ツ)_/¯

edit: also shouldn't "For each Collision pair" really be "For each Contact pair" ? or am I misunderstanding how it works.. it seems to run when things are in contact rather than just on collisions

hi rojo,

i'm not sure if this is supposed to work, or if it's a limitation

hit space during preview to paste the two lights:

https://www.dropbox.com/s/2qvvmfpzeddim ... capx?raw=1

the objects sprite is white, but the object has Tint effect to color the instances differently. The blending mode set to additive

on start of layout, the red and green sprite combine to make yellow, after its pasted, it loses that additive appearance.

thanks!

edit: some more info:

the additive appearance works if you have coloured sprites -without- the tint effect: https://www.dropbox.com/s/fbyi61fgv5v9z ... capx?raw=1

(but it is not practical for my game without tint)

and of course, the tint effect works by itself: https://www.dropbox.com/s/1zczb6jzpqlqx ... capx?raw=1

So my problem only exists when both Tint and Additive are combined

One work around I was going to do was that i go without tint and make a function that creates a (tintless) overlapping Red, Green and Blue additive sprites, and simply vary their opacities to get the exact RGB value appearance I want. But I thought i should check with you first! thanks

hi rojo, i'm getting this error, it's erratic so sometimes I get it, refresh (changing nothing at all) and then it works fine. (happens about once every 10 times)

Javascript error!Uncaught TypeError: Cannot read property 'x' of nullhttp://localhost:50000/rojoChipmunkBeta_behavior.js, line 5173 (col 25)This may be a bug in Construct 2 or a third party plugin or behavior - please report it to the developer following the bug report guidelines. Subsequent errors will be logged to the console.

Solved it.. I just have to use "is NaN"

silly me

korbaach Naw, the string "10" does not equal to the number 10.. that's a good idea though I thought it would fix it for a moment.

Sup guys.

This is an interesting little problem that I've somehow never ran into before. I feel like I may be missing something obvious.

I think this image conveys my problem clearer:

One thing that I thought would work was to use int(), thinking that int("10") would give 10 but int("string") would give me NaN.. but int("string") actually returns the integer 0. So this can't be used as it would turn "Apple" into 0 and then claim it's a number.

Thanks for help

edit: solved it, I was missing something obvious, I just have to use the "is NaN" condition.

try adding the second condition:

card | pick top instance

it is at the bottom of the conditions list, after you pick the card object. Called "pick top/bottom"

Problem Description

sounds in chrome play at their previously played volume for a split second, rather than starting at the volume set in their own 'play sound' action

Attach a Capx

https://db.tt/ewNwAlzC

and here's a video in case you aren't hearing the bug

https://db.tt/urZEsKQW

Description of Capx

plays a pop sound repeatedly, with a slider that controls volume

Steps to Reproduce Bug

lower slider position inbetween pops, lower from max to min for the most obvious effect

Observed Result

the pop sounds like it starts playing at the previously played slider volume, for a split second

Affected Browsers

• Chrome: YES
• FireFox: NO
• Internet Explorer: seemingly not but the sound is fucked

Operating System and Service Pack

win 8.1

Construct 2 Version ID

198