AutoIt functions to tell if a slot is empty/is a gem--how to find out if blue/yellow?

[projectbarcelona]

So I wrote a simple AutoIt bot to do Sarkoth very similarly to the ones that have been posted on the site already. It runs Sarkoth, teleports to town, checks if your backpack is full, when it is sells all items except for gems/tome of secrets then stashes gems/tome of secrets, exits the game. Rinse and repeat.

The issue I'm having is that I would rather salvage the blue items rather than just vendor them as I can get more on the AH for their salvaged commodities. I can't figure out a way to determine if an item is blue with AutoIt [or I guess any screenscraping method] so posting here for help.

Here are my existing functions, take in x & y [for example top left item is 1,1] and added a slow parameter since there seemed to be an odd race condition/queuing issue happening where AutoIt was screwing up when I did a lot of PixelSearch() calls. Added some delay seemed to fix it.

check_for_sellable_item

Func check_for_sellable_item($x,$y,$slow)
	If $slow Then
		Sleep(Random(1000,1250))
	Else
		Sleep(Random(125,175))
	EndIf
	$old_checksum = PixelChecksum(1015 + (($x - 1) * 35) - 20,433 + (($y - 1) * 34) - 20,1015 + (($x - 1) * 35) - 15,433 + (($y - 1) * 34) + 15)
	MouseMove(1015 + (($x - 1) * 35) - 2 + Random(0,5),433 + (($y - 1) * 34) - 2 + Random(0,5),0)
	If $slow Then
		Sleep(Random(1000,1250))
	Else
		Sleep(Random(125,175))
	EndIf
	$new_checksum = PixelChecksum(1015 + (($x - 1) * 35) - 20,433 + (($y - 1) * 34) - 20,1015 + (($x - 1) * 35) - 15,433 + (($y - 1) * 34) + 15)
	return $old_checksum <> $new_checksum
EndFunc

check_for_gem_color

Func check_for_gem_color($x,$y)
	$shade_variance = 40

	$check = PixelSearch(1015 + (($x - 1) * 35),433 + (($y - 1) * 34),1015 + (($x - 1) * 35),433 + (($y - 1) * 34),0x7F4100,$shade_variance)
	If Not @error Then
		Return true
	EndIf

	$check = PixelSearch(1015 + (($x - 1) * 35),433 + (($y - 1) * 34),1015 + (($x - 1) * 35),433 + (($y - 1) * 34),0xA56100,$shade_variance)
	If Not @error Then
		Return true
	EndIf

	$check = PixelSearch(1015 + (($x - 1) * 35),433 + (($y - 1) * 34),1015 + (($x - 1) * 35),433 + (($y - 1) * 34),0x6E00A1,$shade_variance)
	If Not @error Then
		Return true
	EndIf

	$check = PixelSearch(1015 + (($x - 1) * 35),433 + (($y - 1) * 34),1015 + (($x - 1) * 35),433 + (($y - 1) * 34),0x9000D6,$shade_variance)
	If Not @error Then
		Return true
	EndIf

	$check = PixelSearch(1015 + (($x - 1) * 35),433 + (($y - 1) * 34),1015 + (($x - 1) * 35),433 + (($y - 1) * 34),0x820508,$shade_variance)
	If Not @error Then
		Return true
	EndIf

	$check = PixelSearch(1015 + (($x - 1) * 35),433 + (($y - 1) * 34),1015 + (($x - 1) * 35),433 + (($y - 1) * 34),0xC90808,$shade_variance)
	If Not @error Then
		Return true
	EndIf

	$check = PixelSearch(1015 + (($x - 1) * 35),433 + (($y - 1) * 34),1015 + (($x - 1) * 35),433 + (($y - 1) * 34),0x236823,$shade_variance)
	If Not @error Then
		Return true
	EndIf

	$check = PixelSearch(1015 + (($x - 1) * 35),433 + (($y - 1) * 34),1015 + (($x - 1) * 35),433 + (($y - 1) * 34),0x30A630,$shade_variance)
	If Not @error Then
		Return true
	EndIf

	Return false
EndFunc

Should also note I have this working only for the 1360x768 resolution, feel free to modify for any others

[who knows]

I don't even need to read your code and I see you're already using the built in Pixelsearch.

Just simply pixel search the items icon, or the "background" of the name of the item. (When you hover-over the background of the item is coloured, search there.)

[projectbarcelona]

I don't even need to read your code and I see you're already using the built in Pixelsearch.

Just simply pixel search the items icon, or the "background" of the name of the item. (When you hover-over the background of the item is coloured, search there.)

The problem with that is the items are misshaped so the blue was appear in different pixels on each item. Your response will probably be: just search the entire item square for a certain shade of blue which worries me as a lot of non blue items have some kind of blue coloring in the item image.

[Shimizoki]

;Magic
While $VendorMagic
    Sleep(Random(100, 300))
    $MagicPixel = PixelSearch(1398*$x_ratio, 572*$y_ratio, 1914*$x_ratio, 888*$y_ratio, 0x182037, 2)
    If Not @error Then
        MouseClick("right", $MagicPixel[0], $MagicPixel[1])
    Else
        ExitLoop
    EndIf
WEnd

This is what I am using to vendor my blues, I have not yet to my knowledge had any issues with selling something of the wrong color. I did at first, but after quite a bit of tweaking I found that this pixel color/tolerance will sell all blues in no matter what shape and size, but not anything else(with my specs). You just have to stash your gems and tomes before you use it else you will try to vendor/salvage tomes.

[PragmaThrice]

If I was writing it from scratch I would have taken multiple locations around the perimeter of the item and averaged the blue values to see if they match within a certain threshold. But Darkling's approach is much more elegant.