"Before" events

Some events have the ability to stop the event at their start. Canceling will block the execution of code, even the things that Minecraft would run otherwise! Long "_before" events can cause lag, unlike normal ones, so keep them as brief as possible! NOT every event can be canceled atm.

For event canceling look at the Event command.

Event name	action	included objects
namespace:block/name/before/placed	called before the block was placed down	called in the name of the block, in it's position, the placer is also included
namespace:block/name/before/activate	called before the block was right clicked	called in the name of the block, in it's position, the placer is also included
namespace:block/name/before/activate_offhand	called before the block was right clicked	called in the name of the block, in it's position, the placer is also included. Will trigger when the offhand was used
namespace:block/name/before/broken	called before the block was broken or mined	called in the name of the block, in it's position
namespace:block/name/before/entity_landed	called before an entity has landed on the block. Canceling it will prevent fall damage!	called in the name of the block, in it's position, the entity is also included
namespace:item/name/before/use_on_block	called before the item was used on a block	called in the name of the user, in the block's position
namespace:item/name/before/use_on_block_offhand	called before the item was used on a block	called in the name of the user, in the block's position, as the offhand item
namespace:item/name/before/use_on_entiy	called before the item was used on an entity	called in the name of the entity, in it's position
namespace:item/name/before/use_on_entiy_offhand	called before the item was used on an entity	called in the name of the entity, in it's position
namespace:entity/name/before/damage	called before the entity takes damage.	called in the name of the entity, in it's position