Retrogamecoding and Basicprogramming Forum

Retrogamecoding(.org) => EGSL => Topic started by: pielago on 05. September 2017, 23:54:02

Title: can you help me with tiles?
Post by: pielago on 05. September 2017, 23:54:02
looking at the documentation I saw tilesets but I am not able to work them!
I see

loadtileset(filename, lines,rows,string )
tileset( image, lines,rows,string )

I tried to do it but the string? got me confused
can someone give me a small example how to properly use it
hope  someone respond  and thanks so much!
Title: Re: can you help me with tiles?
Post by: Cybermonkey on 10. September 2017, 09:56:12
It's similar to the bitmapfont function.

Let's assume you have an image with two tiles in it. Now you can load your image with
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mytile=loadtileset ("image.png",1,2,"ab") or if you already loaded the image
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The string is similar to the fontface of a bitmapfont, so if you want to draw the first tile you do the following:
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drawtile (0, 0, "a", mytile)the second tile
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drawtile (0, 0, "b", mytile)or a longer line (with both tiles)
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drawtile (0, 0, "aaabbaabbbbaaaabbaaa", mytile)
It's not very nice as you can see, I recommend it only for background drawing where no tiles are changing because string manipulation is slower than using numbers. (And of course you are limited to a string which means if you are using the alphabet you can handle with upper and lower case 52 tiles.)