Implement a macro system for a large-scale animated map block gamut

[nicholatian]

Objective: Write a macro system that translates into a collection of animated tiles, to be used in the sacred lake in the Nome Ruins.

Notes

• This may require REing the assembly routines used for animating map blocks, however it won’t be much of a chore with IDA’s help.
• All of the animations in the GIF below should be implemented, except for the clouds and the overworld objects.
• The tiles should be downscaled to 66% their size shown in the GIF, to better match the overworld scaling of Emerald.