Extension 2.5: Mario

Authors:

• Nathan Vogt

• Elie Schramm

• Dotun Taiwo

Mario, created in 1981 by Nintendo, is a classic video game starring the fictional Italian character Mario. In the assignment, loops printing hashtags will be used to build the block mountains as seen in the picture.

• Find and open the Java class Mario in the nonexam.mario package.

• Your program must first prompt the user for two integer inputs using Scanner. These must be requested in the following order:

  size: What is the size of the mountain? In the picture above, the mountain has size 5 because there are 5 levels of squares, and the widest part of the mountain, at its bottom, is also 5 squares. A mountain will always be a square structure containing size×size elements, some of which are hashtags (#) and some of which are blanks.

  pattern: We will use an integer in the range 1 to 4 to indicate which pattern your program should produce. In the picture above, pattern 1 is shown. The other patterns are explained below

• Your program then prints the mountain of the specified size and pattern.

1. Mario runs from left to right. Create a mountain that he would have to climb, as shown in the example for a size 5 mountain.

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2. Create a mountain that he would descend, as shown below for a size 3 mountain.

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3. Make a mountain that resembles pattern 1, but flipped upside-down. Below is shown a size 7 mountain for this pattern.

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      #

4. Make a mountain that resembles pattern 2, but flipped upside down. Below is shown a size 4 mountain for this pattern.

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Try running your Mario class and test yourself using various sizes (say, 1 to 10) and patterns (always an integer from 1 to 4).

Note that this problem requires careful use of whitespace which are the characters like tab, space, and newlines that don’t show anything in the foreground color. On a white background whitespace characters don’t have a visible impact, but they do move the cursor to a new location. In particular:

• Avoid extra spaces at the beginning of lines

• Avoid using more ln s than needed. For example, if the size is 5 there should be exactly 5 things that move to a new line (5 println s or 5 \n s or a mix of the two.)

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