I have noticed these 2 commands do not work. Is it a future development issue with AGK ?

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Mark Garrett

Reviewed AGK on Steam

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Location: California, US

Posted: 24th Sep 2017 15:32 Edited at: 24th Sep 2017 16:03

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It seems that on a Game-Creation-Platform that the following 2 examples should work, however on AppGameKit they do not:

Example #1

+ Code Snippet

answer as integer

if GetSpriteImageId( 23 ) =  6 
answer = 1  //(yes)
else
answer = 2  //(no)
endif

Example #2

+ Code Snippet

answer as integer

if GetSpriteAngle( 23 ) =  180
answer = 1  //(yes)
else
answer = 2  //(no)
endif

Is this a future development issue? Or is this a 'bug'? Anyone know please?

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BatVink

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Location: Gods own County, UK

Posted: 24th Sep 2017 16:47

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Sprite Image ID works OK for me:

+ Code Snippet

	grid.sprRow[row] = CreateSprite(grid.imgRow)
	DebugWrite("Sprite " + str(grid.sprRow[row]) + " Image ID = " + str(GetSpriteImageID(grid.sprRow[row])))

Sprite 100013 Image ID = 100003

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Mark Garrett

Reviewed AGK on Steam

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Posted: 25th Sep 2017 06:41 Edited at: 25th Sep 2017 07:48

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Well, you gave me an answer.... But I don't see how it relates to my question...

... So, let me explain my question better....And I hope you will understand what I am saying if I exemplify ...

This does code does not work:

+ Code Snippet

answer as integer
    if GetSpriteImageId( 23 ) =  6 
   answer = 1  //(yes)
   else
   answer = 2  //(no)
   endif

Had to re-code it as follows..
this code works, but is longer and more complex:

+ Code Snippet

imageID as integer                   //  This line- had to add an additional variable which I called 'imageID'
answer as integer
imageID = GetSpriteImageID(23)    // This line-  had to then fill the variable 'imageID' with the image of sprite #23
   if imageID  =  6                                // This line-  had to pull the image ID # out of the variable 'ImageID'                           
   answer = 1  //(yes)
   else
   answer = 2  //(no)
   endif

Just saying, this re-coding should be unnecessary and adds to the length of the coding ,

By the way, I noticed there is a 'Bug Reports' forum, but for DarkBasic only. Can we have one also for AGK2? That would be better, I think.

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Ian Rees

AGK Developer

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Posted: 25th Sep 2017 07:36 Edited at: 25th Sep 2017 07:38

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Hi Bubba,

I can't replicate the issue - the code here:

+ Code Snippet

tileImage = LoadImage("tile1.png")
LoadImage(6, "tile1.png")
tmpSprite = CreateSprite(tileImage)
tmpSprite2 = CreateSprite(6)
do
    Print( GetSpriteImageID(tmpSprite) )
    Print( GetSpriteImageID(tmpSprite2) )
    Sync()
loop

shows two examples of setting the image - the first image is auto-assigned an ID and the second one is assigned the ID of 6. When I create two sprites from the two images my print statements show '100001' for tmpSprite and '6' for tmpSprite2.

This is what I expected. The use of ID's is documented here:
https://www.appgamekit.com/documentation/guides/1_id_numbers.htm

The important point is that the GetSpriteImageID command works and returns the correct values without me having to assign them to an integer variable.

Could you show us the part of your code where you assign the image and the sprite?

Thanks.

Edit - fixed link

E

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Scraggle

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Posted: 25th Sep 2017 07:40 Edited at: 25th Sep 2017 07:42

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As pointed out, GetSpriteImageID() works exactly as it's supposed to.
I also suspect that the problem is with the way you have loaded the image and assigned IDs to the image and sprite.

This works perfectly:

+ Code Snippet

LoadImage(6, "_testImage.png")
CreateSprite(23, 6)

answer as integer
do
	if GetSpriteImageId( 23 ) =  6
		answer = 1  //(yes)
	else
		answer = 2  //(no)
	endif
	print("Answer: " + str(answer))
	sync()
loop

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BatVink

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Posted: 25th Sep 2017 11:31

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The code I posted was to show that a direct query gets you the Image ID.
Scraggle may have a point, the help is a little cryptic but suggests it only works under specific circumstances.

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Santman

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Posted: 25th Sep 2017 15:16

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The sprite angle is possibly because the angle isn't actually dead on 180 degrees, I had that. Instead, try checking if the ROUND or FLOOR of the get sprite angle is 180. Worked for me. Have to remember that angles are floating point.

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Mobiius

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Posted: 26th Sep 2017 10:01

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Quote: ", try checking if the ROUND or FLOOR of the get sprite angle is 180"

Or check if the sprite angle is >= 179.9 and <= 180.5.

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Golelorn

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Posted: 26th Sep 2017 23:31

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Having just come off some infuriating "learning" with angles and agk I, too, echo the previous posters. Also, keep in mind its a float. In my experience, wonky things can happen when you compare a float to an integer(maybe due to rounding?).

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