Last updated at 10:47 pm UTC on 23 August 2017
The World in Morphic is the rectangular area which fills the whole screen.
Technically it is a global variable which keeps the instance of the topmost PasteUpMorph.
- All other morphs are submorphs (or submorphs of submorphs) of this Morph.
- Any Morph answers the message #world which returns this topmost instance of PasteUpMorph.
- All Morphs you see on a screen belong to one big composition hierarchy with the global variable World pointing to the topmost Morph, which is a PasteUpMorph.
- The World PasteUpMorph instance refers to a WorldState object
Notes on the World PasteUpMorph instance