Referenced from lesson Character Animation

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

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 danger’s x-coordinate and produces the next x-coordinate.

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:Integrated Oklahoma by Jen Poole is licensed under a Creative Commons 4.0 Unported License. Based on a work at www.BootstrapWorld.org. Permissions beyond the scope of this license may be available by contacting schanzer@BootstrapWorld.org.