Directions: Use the Design Recipe to write a function update-danger, which takes in the danger’s x- and y-coordinate and produces the next x-coordinate, which is 50 pixels to the left.

Contract and Purpose Statement

Every contract has three parts…​

_____________::______________->______

________________________________________________________________

Examples

Write some examples, then circle and label what changes…​

examples:

_______________ (________)__ is ________

_______________ (_______)__ is ________

end

Definition

Write the definition, giving variable names to all your input values…​

fun _____________(____):

________

end

Directions: Use the Design Recipe to write a function update-target, which takes in the target’s x- and y-coordinate and produces the next x-coordinate, which is 50 pixels to the right.

Contract and Purpose Statement

Every contract has three parts…​

_____________::______->______

_______________________________________________________________

Examples

Write some examples, then circle and label what changes…​

examples:

_______________ (________)__ is ________

_______________ (________)__ is ________

end

Definition

Write the definition, giving variable names to all your input values…​

fun _____________(_):

________

end

These materials were developed partly through support of the National Science Foundation, (awards 1042210, 1535276, 1648684, and 1738598). CCbadge Bootstrap by the Bootstrap Community is licensed under a Creative Commons 4.0 Unported License. This license does not grant permission to run training or professional development. Offering training or professional development with materials substantially derived from Bootstrap must be approved in writing by a Bootstrap Director. Permissions beyond the scope of this license, such as to run training, may be available by contacting contact@BootstrapWorld.org.