User Guide

619
sprite...intersects
Syntax
sprite(sprite1).intersects(sprite2)
sprite sprite1 intersects sprite2
Description
Keyword; operator that compares the position of two sprites to determine whether the quad of
sprite1 touches (TRUE) or does not touch (FALSE) the quad of sprite2.
If both sprites have matte ink, their actual outlines, not the quads, are used. A sprite’s outline is
defined by the nonwhite pixels that make up its border.
This is a comparison operator with a precedence level of 5.
Note: The dot operator is required whenever sprite1 is not a simple expression—that is, one that contains a math
operation.
Example
This statement checks whether two sprites intersect and, if they do, changes the contents of the
field cast member Notice to “You placed it correctly.”:
if sprite i intersects j then put "You placed it correctly." into member "Notice"
See also
sprite...within, quad
sprite...within
Syntax
sprite(sprite1).within(sprite2)
sprite sprite1 within sprite2
Description
Keyword; operator that compares the position of two sprites and determines whether the quad of
sprite1 is entirely inside the quad of sprite2 (TRUE) or not (FALSE).
If both sprites have matte ink, their actual outlines, not the quads, are used. A sprite’s outline is
defined by the nonwhite pixels that make up its border.
This is a comparison operator with a precedence level of 5.
Note: The dot operator is required whenever sprite1 is not a simple expression—that is, one that contains a
math operation.
Example
This statement checks whether two sprites intersect and calls the handler doInside if they do:
if sprite(3).within(2) then doInside
See also
sprite...intersects, quad