CSC 160 Examples

Summer I, 2005

Examples 1-10 require loading the world.ss teachpack.

example1.scm

A blue ball that does nothing.

example2.scm

A blue ball that gets 1 pixel bigger each second.

example3.scm

A text string that gets an additional letter each second.

example4.scm

A digital counter that increases by one each half second.

example5.scm

A blue ball that gets 1 pixel bigger each half second, up to a limit, at which point the animation ends.

example6.scm

A blue ball that moves left or right if you press the left or right arrow key on the keyboard.

example7.scm

A blue ball that moves left, right, up, or down when you press the corresponding arrow key on the keyboard. Uses posn

example8.scm

The same, but re-structured with auxiliary functions.

example9.scm

The same, but switching colors between red and green every second. Uses a user-defined structure

example10.scm

The same, with a slightly different definition of the user-defined structure.

animations.tar

Examples 1-10 in a single downloadable file

stutter-template.scm

The first stage of the stutter function; your job is to pick an example, annotate it with values for that example, and finish the definition.

remove-over-100-template.scm

The first stage of the remove-over-100 function; your job is to pick an example, annotate it with values for that example, and finish the definition.

day16.scm

Some examples of higher-order functions: remove-if and do-to-each.