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PixelGetColor - most efficient way of doing this?

 
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ecksphore



Joined: 21 Nov 2006
Posts: 48
PostPosted: Wed Aug 20, 2008 5:50 am    Post subject: PixelGetColor - most efficient way of doing this? Reply with quote
What is the most efficient way of doing this?

I have a starting point of 100, 100.

Then I have a bunch of locations relevant to 100, 100 (starting point). The locations are :

10, 10
20, 10
13, 8
15, 20
24, 10

How can I check these locations one by one - but reset the starting point 100, 100 before checking the next one?

Thanks!
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BoBo²
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PostPosted: Wed Aug 20, 2008 7:20 am    Post subject: Reply with quote
Quote:
PixelGetColor - most efficient way of doing this?
Write a script? Btw, where is your script??
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ecksphore



Joined: 21 Nov 2006
Posts: 48
PostPosted: Wed Aug 20, 2008 5:59 pm    Post subject: Reply with quote
Quote:
Write a script?


seriously? I'm in need of help and that's your answer?

I don't have any code as of yet because I'm not sure what is the most effecient way of doing this. I was hoping somone could give me a small example to get me started in the right direction.

Last edited by ecksphore on Wed Aug 20, 2008 6:01 pm; edited 1 time in total
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Slanter



Joined: 28 May 2008
Posts: 397
Location: Minnesota, USA
PostPosted: Wed Aug 20, 2008 6:00 pm    Post subject: Reply with quote
His point being, have you actually attempted to do this yourself? If so, post what you have so we can help you fix/improve it. If not, read the manual

PixelGetColor
Loop
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ecksphore



Joined: 21 Nov 2006
Posts: 48
PostPosted: Thu Aug 21, 2008 1:09 am    Post subject: Reply with quote
Ok, here is what I have :

Code:

Start:
EnvAdd, X1, 100 ; Starting point
EnvAdd, Y1, 100 ; Starting point

Envadd, X, %X1%
EnvAdd, Y, %Y1%
EnvAdd, X, 10 ; first loc
EnvAdd, Y, 10 ; first loc
PixelGetColor, color, %X%, %Y%
If color <> 0xFFFFFF
{
           X = 0
           Y = 0
           Envadd, X, %X1%
           EnvAdd, Y, %Y1%
           EnvAdd, X, 20 ; second loc
           EnvAdd, Y, 10 ; second loc
           PixelGetColor, color, %X%, %Y%
           If color <> 0xFFFFFF
           {
                        ... Third loc and so on ...
                         This repeats 6 times checking 6 different locations
           }
}


So as you can see, it's ugly as hell and the reason why I didn't give an example in the first place.

I've been messing with this all day and I'm no further ahead than I was last night.

Please (anyone) have a look at my first post and let me know how to properly do this. I just want to have a starting point location (and reference that starting point each time) and check 6 points relevant to that starting point.

I have over 500 locations to check and this needs to be done by the end of the week.
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[VxE]



Joined: 07 Oct 2006
Posts: 1496
PostPosted: Thu Aug 21, 2008 2:13 am    Post subject: Reply with quote
Here's a little something that may be more advanced, though it should illuminate more of what AHK is capable of.

Code:
Start:
StartX := 100
StartY := 100
color := 0xFFFFFF
If (   PixelMatch( color, StartX, StartY)
&& PixelMatch( color, StartX+10, StartY+10)
&& PixelMatch( color, StartX+20, StartY+10)
&& PixelMatch( color, StartX+13, StartY+ 8)
&& PixelMatch( color, StartX+15, StartY+20)
&& PixelMatch( color, StartX+24, StartY+10)   )
   MsgBox All the pixels are white
else
   MsgBox One of the pixels is not white
return

; the function below is a wrapper for PixelSearch and it is acceptable to
; use in an 'If' statement because non-zero values are regarded as 'true'

PixelMatch(color, X1 = "", Y1 = "", X2 = "", Y2 = "", variation = 0, options = "" )
{ ; function by [VxE]. Determines if a pixel of a certain color
  ; or an acceptable variation of that color can be found within
  ; the region. This function can also be used to determine whether
  ; a single pixel is a certain color or is within a variation.
  ; If the region parameters are left blank or non-numeric, the
  ; dimension of the screen is used. i.e. PixelMatch(0x000000)
  ; will return non-zero if there is a black pixel on the screen
   X1 += 0, Y1 += 0, X2 += 0, Y2 += 0 ; robustness consideration
   IfEqual, X2,, SetEnv, X2, % (X1="") ? A_ScreenWidth : X1
   IfEqual, Y2,, SetEnv, Y2, % (Y1="") ? A_ScreenHeight : X1
   IfEqual, X1,, SetEnv, X1, 0
   IfEqual, Y1,, SetEnv, Y1, 0
   PixelSearch, x, y, X1, Y1, X2, Y2, color, variation, options ; broken line, should be % signs in there
   If !ErrorLevel
      return ( ((x + 32768) << 16) | (y + 32768) ) ".01"
   return 0
; The return value will be zero if the target color is not found in the
; specified region. The return value will be non-zero if it is found.
; the coordinates of the matching pixel found are encoded into the return
; value, use [FoundX := Value // 65536 - 32768]
; and [FoundY := Value & 65535 - 32768]
; to retreive the coordinates of a matching pixel.
}

/*
EnvAdd, X1, 100 ; Starting point
EnvAdd, Y1, 100 ; Starting point

Envadd, X, %X1%
EnvAdd, Y, %Y1%
EnvAdd, X, 10 ; first loc
EnvAdd, Y, 10 ; first loc
PixelGetColor, color, %X%, %Y%
If color <> 0xFFFFFF
{
           X = 0
           Y = 0
           Envadd, X, %X1%
           EnvAdd, Y, %Y1%
           EnvAdd, X, 20 ; second loc
           EnvAdd, Y, 10 ; second loc
           PixelGetColor, color, %X%, %Y%
           If color <> 0xFFFFFF
           {
                        ... Third loc and so on ...
                         This repeats 6 times checking 6 different locations
           }
}
*/

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Last edited by [VxE] on Sat Aug 23, 2008 5:01 am; edited 1 time in total
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ecksphore



Joined: 21 Nov 2006
Posts: 48
PostPosted: Thu Aug 21, 2008 2:29 am    Post subject: Reply with quote
This is exactly what I was looking for!

Thank you!! Very Happy
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