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

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