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Events blocks

Events blocks start scripts. Most of them are hat blocks that sit at the top of a stack and run it when something happens. Broadcasts let one script trigger scripts anywhere else in the project, including on other sprites.

Hat blocks (script starters)​

  • when green flag clicked runs when the project starts. Starting again restarts these scripts.
  • when space key pressed runs when a key is pressed. The menu includes specific keys and any.
  • when this sprite clicked runs when the sprite is clicked.
  • when stage clicked runs when the stage backdrop is clicked (shown when the stage is selected).
  • when backdrop switches to backdrop runs when the stage changes to the named backdrop.
  • when loudness > 10 runs when a sensed value (loudness or timer) rises above a threshold. This is an edge-triggered hat: it fires on the crossing, not continuously.
  • when I receive message1 runs when a matching broadcast is sent.

Bilup also exposes when touching mouse-pointer as an edge-triggered hat that runs when the sprite starts touching a target.

Broadcasting​

  • broadcast message1 sends a message to every when I receive script and continues immediately, without waiting for them.
  • broadcast message1 and wait sends a message and pauses this script until all receiving scripts finish.

Broadcasts are chosen from a menu of message names; use the menu's "New message" option to add one.

See also​