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AppGameKit Classic Chat / Drawline is not pixel perfect

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Impetus73

Years of Service

User Offline

Joined: 28th Aug 2011

Location: Volda, Norway

Posted: 22nd Nov 2014 18:59 Edited at: 22nd Nov 2014 19:01

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I have big problems drawing pixel perfect with the dawline command, something is completely broken.

Set your physical monitor resolution to 1280*800 and run this on a PC:

+ Code Snippet

SetWindowSize         	(1280,800,1)
SetScissor		(0,0,0,0)

// set display properties
SetVirtualResolution  	(1280,800)
SetOrientationAllowed 	(0,0,1,1)
SetClearColor         	(255,255,255)

red=MakeColor		(255,0,0)

do
	// Draw test pattern

	DrawLine(1,0,1280,0,red,red)		// Should be: DrawLine(0,0,1279,0,red,red)
	DrawLine(1280,0,1280,800,red,red)	// Should be: DrawLine(1279,0,1279,799,red,red)
	DrawLine(1,799,1280,799,red,red)	// Should be: DrawLine(0,799,1279,799,red,red)
	DrawLine(1,0,1,800,red,red)		// Should be: DrawLine(0,0,0,799,red,red)
		
	Sync()
        // Check if ESC is pressed
	if GetRawKeyPressed( 27 )=1 then End
loop

The code has the coordinates I need for it to work, but the comments behind the lines has the "right" logical coordinates that should work.

----------------
AGK programmer
Did Amiga / AMOS programming in the 90's.

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AppGameKit Classic Chat / Drawline is not pixel perfect