I've been developing a map with world painter and I have an interesting idea for it, but I'll need someone to make a mod/plugin for it to work. The idea is to make a claw like device that when used on a boat, grabs the block directly below you on the ocean floor. Somewhat like The Legend Of Zelda: The Wind Waker witht he Grappling claw while fishing for treasure.

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...................................B
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ssssssssssssssssssssTsssssssssssssssssssss

[ ] -player
B - Boat
~ - Water
s - Sand
T - Treasure

My map has a very deep ocean with many islands. The idea for the map is that with the islands not having many resources, so you must "fish" for materials. I don't know much about coding/modding, but I would imagine this wouldn't be too complex. I would like someone to try to develop this since I don't know how. I think it'd be beneficial to all players who get it whether it's for my map or not.

If I did not explain it clear enough, feel free to ask questions. I just hope this doesn't go unheard