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1075919 Posts in 44152 Topics- by 36120 Members - Latest Member: Royalhandstudios

December 29, 2014, 03:21:56 PM
TIGSource ForumsDeveloperTechnical (Moderators: Glaiel-Gamer, ThemsAllTook)Block cursor snaps to 16x16 pixels, but can move by camera
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Author Topic: Block cursor snaps to 16x16 pixels, but can move by camera  (Read 502 times)
SuperDisk
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« on: September 08, 2013, 03:59:20 PM »
This's got to be one of the dumbest questions I've ever asked, but for some reason I can't figure it out.

I've picked up an old project and occasionally work on it from time to time. I've got a cursor on a grid that will snap to the mouse in 16x16 increments.



Now the problem is, I can pan the camera around using WSAD (Which isn't in 16px increments), but the cursor will still remain attached to the mouse (Even if it's un-aligned with the tiles it's supposed to be over.)

What should I do?
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ThemsAllTook
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Alex Diener


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« Reply #1 on: September 08, 2013, 04:07:34 PM »
Use the camera position as an offset for your grid origin, maybe?
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Xienen
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Greater Good Games


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« Reply #2 on: September 10, 2013, 10:08:00 AM »
Modulus the camera x and y locations by 16 and then add or subtract that result from your grid.
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SuperDisk
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« Reply #3 on: September 10, 2013, 03:25:53 PM »
That worked great, Xienen!

I had tried something similar earlier, but I realized my mistake: I was adding the modulus to the position THEN doing ((pos/16)*16) to constrain it to 16.

If you add it afterwards, it works.
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