Y coordinate stuck at 65

[bringel]

When moving the mouse over the map, the x and z coordinates update appropriately, but the y coordinate is stuck at 65

[mikeprimm]

The rendered maps do not include Y coordinate data corresponding to the visible surface of the rendered map, so the coordinates always correspond to the X and Z of the mouse pointer relative to Y=65. Capturing the other data would add an impractical amount of data to the data already recorded as PNG files (essentially about another 30-35% to the map sizes, which everyone already complains about, and which would need to be parallel files to the rendered tiles - essentially, they'd probably be like grayscale maps corresponding to the Z of the first surface contributing to the corresponding pixel on the image PNG files). It definitely CAN be done - just haven't given it too much priority, given the data cost and the corresponding work needed on the client code.