Issue with repeating tiles

[neuroflux]

Hey guys,

So, I've managed to get multiple images outputted to the buffer and rendered fine on screen, but when I try to:
GD.BitmapSize(BILINEAR, REPEAT, REPEAT, 480, 240);

With an image of size 37x37, it renders.. broken.

Originally I had one big image as a background, but to save memory I want tiles instead.

You can download my sketch and asset file in zip format here:
arduino.nuhack.com/gameduino2/platformer.zip

The issue seems to be on lines 300-310.

Let me know what I can do to fix it! 

edit: here's a video of it working (with the large background images, not the tiles)
www.youtube.com/watch?v=eAiJxU8kS8I

[jamesbowman]

Tiling bitmaps (using REPEAT, REPEAT) must be a power of two. So to fix this you can...

(1) resize the tiles to 32x32 or 64x64. Note that you can have tiles of 64x64, and use a cmd_scale() to shrink them so each tile is 37x37:

   cmd_scale(F16(37 / 64.0), F16(37 / 64.0));
   cmd_setmatrix();


(2) use a 37x37 bitmap and draw each tile with Vertex2ii() or Vertex2f().

[neuroflux]

Awesome, thank you James. Star!