13CONSTRUCTING FLOORS

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The rooms we built with the buildRoom() function in Chapter 12 are useful, but they won’t keep the rain out. In this chapter, we’ll write a buildFloor() function to build floors and ceilings, and we’ll also write a buildfloor program to call that function. We’ll use one function to build floors and ceilings because a ceiling is just a floor built higher up, as shown in Figure 13-1.

The algorithm we’ll use to build floors will move a turtle across a rectangular area and make the turtle perform an action at every space. In this chapter, the turtle will place a block at every space in the rectangular area, but this flexible ...

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