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Is fishing available in the Mobile version of Terraria?

Does anybody have any experience with, or knowledge of, any game controller that works with Terraria??

It has the Menu option for controllers but it is grayed out.

I have tried using a BlueTooth keyboard but it is not recognized.

I have also tried using the SteelSeries controller, which is recognized, but the button mapping is all messed up and several important options not available.

What is the better way to go - a weapon with  22 melee damage & fast speed OR a weapon with 18 damage but very fast speed ?

I think there is a bug in the mobile version iOS8 - The water  bucket once in your hand will bail out the water correctly once, but then the water bucket jumps to the costmetic helm slot.  I tried using two bucket, one on my head, one in inventory slot.  It scoops one bucket full then jumps from the hotslot inventory to an open inventory space.  If you do not have an inventory space, you lose the bucket.  Has anyone used a bucket successfully with iOS8 ??  

Ran into another glitch last night - Was wondering about in the dungeon for the first time - Go Felsth -  and I found my what I thought was a Locked Gold Chest.  Great I thought, since I have 4 Gold Keys, except - nothing worked to open it.  If the image is not a gold chest, please explain. Thanks.

I tried "clicking" on the chest first, with the gold key in hand. Nothing.

I tried "activating" the key. Holding it and "clicking" everywhere, these chest, the key, myself. Nothing.

I searched the web for a potential bug. Nothing,

So I am making the 'assumption' that I am doing something wrong. (and yes I did another restart of the iPad). 

So if somebody could describe the corret way to open a chest, it would be appreciated. Thanks.

I now have 3 Suspicious Looking Apples and as I understand it, it is supposed to spawn a pet worm.  I have put it in my inventory, all slots, tried it above & below ground, nothing seems to work.  Is this broken in the Mobile version, or am I doing something wrong?

I am just getting started with the game, and I have drilled a lot of holes looking for specific minerals, and on a whim, I created another world and found gold, which I hadn't found any of on my main, just laying on the surface.  Is this a typical practice?  Or do all worlds get the same amount of minerals?  Thanks.