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COMMANDS
| COMMAND |
DESCRIPTION |
| move() |
Moves you forward one position |
| face( ["n", "s", "e", or "w" ] ) |
Faces you in direction specified |
| turnLeft() |
Turns you 90 degrees counter-clockwise |
| turnRight() |
Turns you 90 degrees clockwise |
|
|
CONDITIONALS
| CONDITIONAL |
DESCRIPTION |
| pathIsClear() |
Checks if the patch immediately in front of the lawn mower is
grass (either cut or not). If the patch is grass then the path is
clear. If a wall or a lawn gnome is in front of the lawn mower, then
the path is NOT clear. |
| nextNeedsToBeCut() |
Checks if the patch in front has been cut. |
| nothingAdjacentNeedsCut() |
Checks the patches in front, behind, to the left, and to the
right. If all of these 4 patches have already been cut, the condition is
true. |
| pathIsNotClear() |
Checks if the patch in front of the lawn mower contains a wall or
a lawn gnome. |
| moreToCut() |
Checks if there is any more grass to be cut. |
| directionIs(["n", "s", "e", or "w" ] ) |
Checks if the lawn mower is pointed in the direction that you pass
in. For example, if you type if (directionIs("n"))
then it will determine if the lawn mower is facing north. Notice that you
can pass in "n", "s", "e", or "w". Make sure that the direction is in
quotes. |
| xPositionIs( [1,2,3,4,5,6,7,8,or 9] ) |
Checks the x-position of the lawn mower. For example, if you type if
(xPositionIs(1)) then it will determine
if the lawn mower is located at x = 1 (the first column). You can pass in
any integer number between 1 and 9. Do not put quotes around the number. |
| yPositionIs( [1,2,3,4,5,6,7,8,or 9] ) |
Checks the y-position of the lawn mower. For example, if you type if
(yPositionIs(1)) then it will determine
if the lawn mower is located at y = 1 (the first row). You can pass
in any integer number between 1 and 9. Do not put quotes around the
number. |
| alongWall(["n", "s", "e", or "w" ] ) |
Checks if the lawn mower is located along the specified wall. For
example, if you type if(alongWall("n")),
then it will determine if the lawn mower is along the north wall.
You can pass in "n", "s", "e", or "w". Make sure that you put quotes
around the wall. |
CODE
| CODE |
DESCRIPTION |
|
if ( [conditional] ) {
[commands]
}
|
This statement performs the commands if the conditional is
true. Make sure that You can have more than one command. Put a
semi-colon at the end of each command or make sure that the commands are on
separate lines. If you put an exclamation point ("!") before the
conditional, then it will check if the conditional is false. For example,
if you type if (!directionIs("n")) then the commands will be executed
if the direction is NOT north. You can also have multiple conditionals
using || for OR and && for AND. For example, if you type if(directionIs("n")
&& pathIsClear()) {move()}, then MowerJo will move only if it
is facing North and the path is clear. |
|
while ( [conditional] ) {
[commands]
}
|
This statement repeats the commands while the conditional is
true. You can have more than one command. Put a semi-colon at the
end of each command or make sure that the commands are on separate lines.
You can also have multiple conditionals using || for OR and && for AND. |
|
if ( [conditional] ) {
[commands 1]
}
else {
[commands 2]
}
|
This statement performs the first set of commands if the
conditional is true and the second set of commands if the condition is
false. You can have more than one command. Put a semi-colon at the
end of each command or make sure that the commands are on separate lines.
You can also have multiple conditionals using || for OR and && for AND. |
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MOWERJO
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