Ahoy! As part of my twitch chat to roll20 work, I'm letting viewers "ping" on the map with the sendPing() API. This works fantastic! Currently the viewer can specify X,Y or a token's name. I'd also like to let them specify the grid label (eg. N10) but my maps are using horizontal hex and the math is boggling my mind. Does anyone have a clever algorithm for calculating the center of the hexes? Thanks all!