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Cart #map_zoom-0 | 2020-12-05 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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Do you want to zoom in our out of your map during the game this may be for you.

Simple cart to show off the zoom function.

Cursor keys to scroll x/z to zoom in and out.

actual function is as follows

 
--prints the map zoomed
-- zoom is the zoom factor 2 for twice as big
-- 0.5 for half as big
-- mx = the pixel cordiante of the map to start
-- my = the pixel cordiante of the map to start
-- sx = screen offset x
-- sy = screen offset y
function zmap(zoom,mx,my,sx,sy)
 zoom = zoom or 1
 mx= mx or 0
 my= my or 0
 sx= sx or 0
 sy= sy or 0
	for i=0, 127 do
		tline(0,i,127, i, mx, my+i/8/zoom, 1/8/zoom)
	end
end

Please feel free to adapt for your own projects.
A better version of this could use a screen clipping rectangle but I wasn't sure if it was necessary or not

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