part1: drag bird into air into boundary (bird not higher onto grass) by Karel Rosseel this is the original version, no rectangle to get bird onto grass => it works to drag the bird https://zimjs.com/zapp/E_3R3BB Pic Rectangle Label tap drag addPhysics cur pos alp siz reg scaleTo centerReg center Physics | physics	PROMO EDITOR	FULL SLATE
ZIM is a JavaScript Canvas Framework for everyone to Code Creativity!