Item (entity)
Items are "dropped" blocks or items (non-block resources) that appear in the world, rather than being in the inventory of a player or block entity; they are a type of entity.
Items have two possible appearances, generally corresponding to whether the item appears as a 3D or 2D shape in a player's inventory screens. 3D items appear as their 3D shape, miniaturized to about 1⁄4 scale, while 2D items appear as 1⁄2 scale with all the pixels extruded into a cube. Both types slowly rotate and bob up and down; this is merely a visual effect, the item itself does not actually rotate or bob up and down.
Item entities that represent a stack of more than one item appear as several items stuck together. Stacks of 1 appear as one item, 2-16 as two items, 17–32 as three, 33-48 as four, and 49+ as five.
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