Fountain

Emits falling blocks for a specific amount of time.

Parameters

Parameters	Information	Example
Location	The origin of the fountain in the format of world, x, y, z.	world, 196.3, 64, -381.8
Velocity	Sets the velocity of falling blocks. This is used to launch falling blocks in a specific direction. Don't set these values too high (I would say around a maximum of 10). Follows the pattern of x, y, z.	1, 1.5, 0
Block	The block to use as falling block. Items will not work!	BLUE_STAINED_GLASS
BlockData	The block data of the block (if it has any). For example an open gate, a rotated stair, ... Use [] to set none.	[open=true]
Length	The duration of the effect (in ticks!).	20
Randomizer	This randomizes the value of the velocity a bit. The higher the value, the more the velocity changes. I suggest keeping this between 0 and 1.	0.5
Delay	The amount of ticks this effect waits after the show starts before it's activation.	40

YML Preset

'1':
  Type: FOUNTAIN
  Location: world, 0, 0, 0
  Velocity: 0, 0, 0
  Block: BLUE_STAINED_GLASS
  BlockData: []
  Length: 20
  Randomizer: 0
  Delay: 0

Youtube Tutorial