Day 39 complete

docs/Day 039.md

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+# Day 39
+
+My `draw_bitmap` proc has been already setup to have the position specified
+from the assumped position of the center of the image.  
+Its how I'm used to anchoring images by default so thats why I decided to go with it.
+
+Casey however is using the corner however...  
+and then is doing some offset alignment based on what he sees for the coordinates on GIMP..
+
+I decided to hand calibrate the alignment by eye. Since I already have it centered on X, the `align_x` could  
+stay zeroed for now and all I needed to do was align_y.
+
+I also did not do the difference using a `tile_map_diff` like he did,
+I just returned a tile_map_position and switch the map coodinates to be signed 
+(which tbh is fine I'll just adjust the math later when I need to).
+
+I'm assuming it won't matter because the tile map setup we currently have is before he revamps the project with proper
+vector math data structures, and he might switch to signed coordinates for them in the stream.