UI: Improve Mouseclicking and Hotbars

[Jackard]

Black lines is behavior that remains the same. Red lines indicate new or altered behavior.

LEFTCLICK on world to move character.
LEFTCLICK on hotbar button for default use. Unequipped armor is worn, unequipped tools are wielded, equipped tools activate cursor modes.
LEFTCLICK + LEFTCLICK on items to pick up and drop [selected] items. This can also be used to drop items in the hotbar.
LEFTCLICK + DRAG on items to pick up and drop [selected] items. This can also be used to drop items in the hotbar.
LEFTCLICK + DRAG on window moves the window.
LEFTCLICK + DRAG on abilities to pick up and drop abilities in the hotbar.
SHIFT + LEFTCLICK on [selected] items to transfer them between last two containers.
CTRL + LEFTCLICK on [selected] items to drop them on the ground.

LEFTCLICK + RIGHTCLICK on [selected] items to pick them up and use them on another item or object.

RIGHTCLICK on world to deactivate cursor modes.
RIGHTCLICK + DRAG forms a selection box that highlights multiple items or objects.
ALT + RIGHTCLICK on items or objects to open radial menu.
RIGHTCLICK on items or objects for default use:

Containers to open them.
Unequipped armor to wear it.
Unequipped tools to wield them. Weapons/tools automatically go mainhand, shields automatically go offhand.
Equipped tools to activate cursor modes:

HAND mode: destroy object, gather resource, attack creature (punch, basically)
AXE mode: destroy object, attack creature, chop tree, remove stump, make blocks
SAW mode: make boards
SCYTHE mode: harvest crops
PICK mode: mine area, destroy object
SWORD mode: attack creature
FISH mode: go fish
SHOVEL mode: dig dirt, dig sand, dig clay
etc.

Critters to pick them up.
[Selected] food to eat.
Drinks to drink.
Cows to milk.
Crops to harvest.
Herbs to harvest.
Sheep to shear.
Beehives to collect honey in first available container.
Trees to collect fruit.
Wells to collect water in first available container.
Water to collect water in first available container.
etc.

Credits:
Rightclick performs default action by Jackard and Delamore
Picking up multiple items from ground by Sarge and Delamore
Hotkey for simple Eat/Use by AlexFili

[Potjeh]

Nice. Just add a hotkey for last selected radial menu option, that repeats last action without opening the menu. Some kind of a right-click modifier would would work best, I think.