RANDOM POSITION

[Motokeiro]

Hello everybody, How are you?

I'm trying to make a move that looks a lot like the game of the three conchas.

For who does not know: https://www.youtube.com/watch?v=A3i2nhxR3SE

  Some objects (the circles) move in a random way on the x axis but can not help that they do not overlap one over the other

can you help me?

[Tim at Loddon]

Could watch that video for hours, I never want to know how it is done though ;)

We are going to need some blocks Motokiero and for you to confirm that you want all the shells in a straight line and not overlapping, please.

[ScottFerguson]

See: https://youtu.be/ZH56__XBQfs and https://youtu.be/TYMQ3CKet8o

[Motokeiro]

hi scott, 

thanks for your help but my problem is this

https://youtu.be/c0N1kXCbQL8

[ScottFerguson]

You just need to make sure the x position of the sprites/buttons are the starting x value + a random multiple of the offset between them.

[Abraham Getzler]

What if you set small target posts at the five starting and ending positions,

behind (< z) the sprites),

keep the posts in a list, generate a random copy list for target destinations,

and set your moving sprites a speed and point each towards its target post.

Have a collision detection event for each sprite, but respond only to collision with that sprite's designated target post,

by comparing (x,y) values or by comparing OTHER against the post component (haven't tried that.)

When collision with designated target is detected, set speed to 0 to stop there.

ABG

[Abraham Getzler]

I got it working in 2 dimensions.

See attached.

ABG

[Motokeiro]

HI Abraham! Thanks for your help

but your file aia is not working

[Motokeiro]

I'm almost there. 

so far I can adjust objects and make random movements.

but as you guys can see, the objects are still overlapping and consequently disappearing.

to you understand the sprites:
ponto = red point

quadro =square

tela = canvas

[Abraham Getzler]

I got that error message too, until I did a Cold Restart on my emulator.

That was caused by a recent AI2 update, that did not signal to the emulator's Companion that it needed to update.

Do a Cold restart on the emulator connection, then try to connect, and follow the usual emulator Companion update procedure.

ABG

[Abraham Getzler]

Also, I added a docking procedure and a write up.

Look for the app shuffle_balls in the Gallery for everything.

Additional apps are under agetzler.

ABG

[Motokeiro]

Hello friends!

I'm almost getting hit the positions of sprites.

But I try some difficulty getting and error message.

You Can my help?

I'm sending the file if you guys want to take a look

[Motokeiro]

the labels 1,2, 3 are to show the X position

the labels 4,5 are to show the Yposition

and the label 6 is to show tthe length of list GLOBAL POS_QUADRO.

I speak portuguese, so if you are some doubts about sprites names or variables names, ask me.

[Abraham Getzler]

The problem root is that you are picking a random number too close to the end of the list.

After you pick the random number, you deplete the list three times at that location.

So the limit for picking a random index should be length(list)-2, to allow for removing length(list)-2, ...-1, ...-0.

Also, you replenish the list when it is empty, but that is not enough.

If your list has length < 3, it won't have enough items to satisfy your triple depletion.

So change that IF test at the top from IF LIST IS EMPTY to IF LENGTH(LIST) < 3

ABG