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I was curious as to how you would go about converting from pixel to tile precision on a tile map. For example, let's say my map is comprised of 8x6 tiles, each of which are 50x50 pixels in size. If I could only get the current coordinates of my mouse in pixels, how would I go about finding which tile those pixels are contained in programmatically?

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It's quite simple. Just divide your position with tile dimensions. Like this.

tileX = positionX / tileWidth
tileY = positionY / tileHeight

this will give you x and y tile, where your position is. This assumes that your top left tile is at 0,0 coordinates.

So, in your case, lets say coordinates are x:256,y:172

tileX = x / 50
tileY = y / 50

This would result

tileX = 5
tileY = 3
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  • \$\begingroup\$ Erm... wow. Yah that's certainly a lot simpler than I expected. \$\endgroup\$ Jul 9, 2014 at 9:26
  • \$\begingroup\$ @r0llingthund3r you'll find a lot of solutions are simpler than you think. It's the perks of logic in programming. You look like you're pretty new so come into the Chat and join us for a while. You might learn even more! \$\endgroup\$ Jul 9, 2014 at 9:52

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