Discuss Scratch
- 123789456000
-
Scratcher
66 posts
New block, about colours!
Well, I want it to REPORT a VALUE as an RGB colour. The<touching color [#ff0000] ?>
block only detects 1 colour. (bright red).
And it would report the colour number the center of the sprite is touching.
Last edited by 123789456000 (March 23, 2015 17:21:33)
- -Glacier-
-
Scratcher
35 posts
New block, about colours!
Yes they should add a what color this sprite is touching. There is a way to do this but it is a big script.
- 123789456000
-
Scratcher
66 posts
New block, about colours!
Well, it would then proceed… to…… errrrr………….. you ask me difficult questions!!!
- 123789456000
-
Scratcher
66 posts
New block, about colours!
Yes they should add a what color this sprite is touching. There is a way to do this but it is a big script.
Yeah. I tried it myself.
- IronBit_Studios
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Scratcher
1000+ posts
New block, about colours!
Well, it would then proceed… to…… errrrr………….. you ask me difficult questions!!!Use quotes, like this. BTW, I agree with Hockeyist
- 123789456000
-
Scratcher
66 posts
New block, about colours!
Well, I want it to REPORT a VALUE as an Rgb colour. The<touching color [#ff0000] ?>
block only detects 1 colour.
And it would report the colour number the center of the sprite is touching.
What if the center touches multiple pixels, e.g. a 2x2 sprite?
Well, it would then proceed… to…… errrrr………….. you ask me difficult questions!!!Use quotes, like this. BTW, I agree with Hockeyist
Ok, then
Well, I want it to REPORT a VALUE as an Rgb colour. The<touching color [#ff0000] ?>
block only detects 1 colour.
And it would report the colour number the center of the sprite is touching.
What if the center touches multiple pixels, e.g. a 2x2 sprite?
I agree with Hockeyist.
Last edited by 123789456000 (March 23, 2015 17:47:51)
- stickfiregames
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Scratcher
1000+ posts
New block, about colours!
Support for
(color at x: () y: () :: sensing)To answer TheHockeyist's question, the second one would use the colour at the x and y position of the sprite as listed at the top right of the scripts pane (which seems to be the same as the floor of the sprite's exact x and y position). Also, it would ignore the colour of the sprite itself since it would be quite useless otherwise.
(color at [sprite v] :: sensing)
- Rex208
-
Scratcher
500+ posts
New block, about colours!
I do not support this, but rather this block:color at x: () y: () :: sensing
// To check what color the sprite is touching, all you now have to do is this:
color at x: (x position :: motion) y: (y position :: motion) :: sensing
- Cyoce
-
Scratcher
500+ posts
New block, about colours!
I do not support this, but rather this block:Support for this (I edited the Scratchblocks to make it into reporters, and changed it to “color of”).(color of x: () y: () :: sensing)
// To check what color the sprite is touching, all you now have to do is this:
(color of x: (x position :: motion) y: (y position :: motion) :: sensing)
It would report what color the specified coordinate (basically pixel) is.
One problem, though: how will it report a color? There currently isn’t a color data type/slot, and I don’t see how we could use it. Personally, I would prefer a hexadecimal RGB string.
- stickfiregames
-
Scratcher
1000+ posts
New block, about colours!
A number would be more useful, since it could be dropped into a colour slot.I do not support this, but rather this block:Support for this (I edited the Scratchblocks to make it into reporters, and changed it to “color of”).(color of x: () y: () :: sensing)
// To check what color the sprite is touching, all you now have to do is this:
(color of x: (x position :: motion) y: (y position :: motion) :: sensing)
It would report what color the specified coordinate (basically pixel) is.
One problem, though: how will it report a color? There currently isn’t a color data type/slot, and I don’t see how we could use it. Personally, I would prefer a hexadecimal RGB string.
(If you don't know, you can put numbers into a colour slot in either decimal or hex if you put a reporter in the slot, like this:
set pen color to ((16777215) + (0))Returning it as a hex string like 0xffffff would also make it possible to put in a colour slot, but I think it would probably just be a number.
set pen color to (join [0x] [ffffff])
- Cyoce
-
Scratcher
500+ posts
New block, about colours!
A number would be more useful, since it could be dropped into a colour slot.Now that I think about it, a number would probably be best, as it would be easier to modify the individual color values than base-16 hexadecimal.
(If you don't know, you can put numbers into a colour slot in either decimal or hex if you put a reporter in the slot, like this:set pen color to ((16777215) + (0))Returning it as a hex string like 0xffffff would also make it possible to put in a colour slot, but I think it would probably just be a number.
set pen color to (join [0x] [ffffff])
Last edited by Cyoce (March 24, 2015 01:50:18)
- ev3commander
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Scratcher
500+ posts
New block, about colours!
No support. What if a sprite was sandwiched between 0xFF0000 and 0x00FF00, what would it report? Exactly. So we should not have this block but rather kvackkvack's block.
- 123789456000
-
Scratcher
66 posts
New block, about colours!
Ok. I would really like to have this block:
But as a reporter. You know, blue variable shaped like this:
Thanks for the suggestion, kvackkvack!!! :- )
colour at x:() y:() ::sensing
But as a reporter. You know, blue variable shaped like this:
(answer)
Thanks for the suggestion, kvackkvack!!! :- )
- kvackkvack
-
Scratcher
500+ posts
New block, about colours!
Ok. I would really like to have this block:You're welcome!colour at x:() y:() ::sensing
But as a reporter. You know, blue variable shaped like this:(answer)
Thanks for the suggestion, kvackkvack!!! :- )
And you're right, it should be a reporter - I was quite tired when I made that comment

color at x: () y: () :: sensing reporter
- 123789456000
-
Scratcher
66 posts
New block, about colours!
Moving on from Scratch? Don't learn Java or a C-derivative; that's like going to Moon with only the engine of your spaceship. Instead, learn some simpler language like JavaScript or Processing.
I know Assembler:
This is how to print “hello world”:
section .text
global _start ;must be declared for linker (ld)
_start: ;tell linker entry point
mov edx,len ;message length
mov ecx,msg ;message to write
mov ebx,1 ;file descriptor (stdout)
mov eax,4 ;system call number (sys_write)
int 0x80 ;call kernel
mov eax,1 ;system call number (sys_exit)
int 0x80 ;call kernel
section .data
msg db ‘Hello, world!’,0xa ;our dear string
len equ $ - msg ;length of our dear string
I know Assembler:
This is how to print “hello world”:
section .text
global _start ;must be declared for linker (ld)
_start: ;tell linker entry point
mov edx,len ;message length
mov ecx,msg ;message to write
mov ebx,1 ;file descriptor (stdout)
mov eax,4 ;system call number (sys_write)
int 0x80 ;call kernel
mov eax,1 ;system call number (sys_exit)
int 0x80 ;call kernel
section .data
msg db ‘Hello, world!’,0xa ;our dear string
len equ $ - msg ;length of our dear string
- 123789456000
-
Scratcher
66 posts
New block, about colours!
To be MORE detailed:~
And it would report a 256-bit RGB number.
DONE!!
colour at x: () y: () ::sensing reporter
And it would report a 256-bit RGB number.
DONE!!
- cwrivera99
-
Scratcher
500+ posts
New block, about colours!
I do not support this, but rather this block:(color of x: () y: () :: sensing)
// To check what color the sprite is touching, all you now have to do is this:
(color of x: (x position :: motion) y: (y position :: motion) :: sensing)
Support for these two.A number would be more useful, since it could be dropped into a colour slot.Now that I think about it, a number would probably be best, as it would be easier to modify the individual color values than base-16 hexadecimal.
(If you don't know, you can put numbers into a colour slot in either decimal or hex if you put a reporter in the slot, like this:set pen color to ((16777215) + (0))Returning it as a hex string like 0xffffff would also make it possible to put in a colour slot, but I think it would probably just be a number.
set pen color to (join [0x] [ffffff])
- cwkethan1508
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Scratcher
100+ posts
New block, about colours!
No support
if <touching color [#ff0088] ?> then
do stuff :: motion
end
- IronBit_Studios
-
Scratcher
1000+ posts
New block, about colours!
No supportWhy? Please don't necropost and go off topic, as well.if <touching color [#ff0088] ?> then
do stuff :: motion
end
- dude341
-
Scratcher
1000+ posts
New block, about colours!
No supportThe block he's suggesting is nothing like that. It detects what colour they're touching.if <touching color [#ff0088] ?> then
do stuff :: motion
end










