Scratch

MITscratcher · 2008-01-21 00:15:35

In one of my older games, I have a script that makes a sprite play a sound if touching mouse pointer. Although, when the sprite is set to hide, it still plays the sound if "touching" (Supposedly) the mouse pointer. In the game that I am making now, this is a very important question in which I NEED an answer.

Last edited by MITscratcher (2008-01-21 00:16:21)

Paddle2See · 2008-01-21 03:39:06

So the question is "Does a hidden sprite generate a Touching Mouse Pointer event?"

MITscratcher · 2008-01-21 12:25:30

Paddle2See wrote:
So the question is "Does a hidden sprite generate a Touching Mouse Pointer event?"

Exactly, I may be hard with wording sometimes . . . smile

kevin_karplus · 2008-01-21 13:02:06

I wrote a short script to test this:

when greenflag clicked
hide
forever if touching mouse-pointer
play sound pop

Sure enough, the "touching mouse-pointer" test can be true even if the sprite is hidden.

Putting in a second sprite, and testing if touching sprite2 shows that a hidden sprite does not test "touching sprite2". This seems inconsistent. Either hidden sprites should always test if touching, or never test if touching.

Scratch team—what is the *intended* behavior for hidden sprites?

Note, in both cases the test was done by the hidden sprite.

MITscratcher · 2008-01-21 13:08:04

kevin_karplus wrote:
I wrote a short script to test this:

when greenflag clicked
hide
forever if touching mouse-pointer
play sound pop

Sure enough, the "touching mouse-pointer" test can be true even if the sprite is hidden.

Putting in a second sprite, and testing if touching sprite2 shows that a hidden sprite does not test "touching sprite2". This seems inconsistent. Either hidden sprites should always test if touching, or never test if touching.

Scratch team—what is the *intended* behavior for hidden sprites?

Note, in both cases the test was done by the hidden sprite.

It would also be nice for an idea to sense whether or not a sprite is showing, or not. Otherwise, there really is no way to support a hidden sprite to do something based on the idea of being hidden.

Paddle2See · 2008-01-21 15:28:01

Are these findings true for both the Scratch and Java environments. Or just one or the other?

kevin_karplus · 2008-01-21 20:52:25

I only tested in Squeak.

MITscratcher · 2008-01-21 20:54:41

Is there an alternative way to avoid this glitch?

Paddle2See · 2008-01-22 04:08:15

There may be...I just tried to replicate Kevin's results in 1.2.1 (which is what I am running) and was not able to do so. I seem to recall some mention of a bug like this being fixed in 1.2.1. What version are you running?

kevin_karplus · 2008-01-22 07:58:51

I was running v1.2.1 on Mac OS 10.3.9

Paddle2See · 2008-01-22 12:30:10

Hmmm. I'm running on Vista Home Premium (sounds like a beer!). Maybe the glitch is OS dependent? Should we fire off an e-mail to the team?

Scratch

archived forums

#1 2008-01-21 00:15:35

Another glitch

#2 2008-01-21 03:39:06

Re: Another glitch

#3 2008-01-21 12:25:30

Re: Another glitch

Paddle2See wrote:

#4 2008-01-21 13:02:06

Re: Another glitch

#5 2008-01-21 13:08:04

Re: Another glitch

kevin_karplus wrote:

#6 2008-01-21 15:28:01

Re: Another glitch

#7 2008-01-21 20:52:25

Re: Another glitch

#8 2008-01-21 20:54:41

Re: Another glitch

#9 2008-01-22 04:08:15

Re: Another glitch

#10 2008-01-22 07:58:51

Re: Another glitch

#11 2008-01-22 12:30:10

Re: Another glitch

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