- yield a thread loop or tick in looks_switchbackdroptoandwait
If all threads broadcastAndWait is watching are "waiting" for a future
frame, yield until the next tick so event_broadcastandwait also defers
to a future frame.
This involves adding a new opcode, event_whenstageclicked, and adding a
method to the blocks container to update the opcode pair depending on
whether the target is the stage. This method is then called in two
places: first after the sb2 import parses the blocks (not done in the
sb2 parsing itself because no other blocks are target specific) and then
again when blocks are shared between targets.
Also added tests for the block container method, and a fixture project
that tests the opcode splitting on sb2 import.
* Add `Clone.prototype.getCostumeIndexByName`, keep in range
* Add basic costume primitives from Scratch 2.0
* Add costume getter block
* Add properties and methods for distinguishing stage and sprites-vs-clones
* Add backdrop-related looks blocks
* Fix up "switch to backdrop" to be working
* Costume/backdrop reporters are 1-indexed
* Fire "when backdrop switched" hats
* Cut cloning helpers for a separate PR
* Disable many blocks on the stage
* Refactor into _setCostumeOrBackdrop; implement switch backdrop and wait
* Fire hats even when backdrop unchanged
* Key pressed hat
* Tabs -> Spaces
* Oops
* Edge activate
* Fix hat
Phew...
* I forgot to change it also here
:/ :/ :\
* Minor fixes for TravisCi
* Minor docs
* Line length
