move forward east and west
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23
rover.fnl
23
rover.fnl
@ -14,7 +14,9 @@
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(fn command [rover commands]
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(match rover.direction
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:n {:x 0 :y (+ rover.y 1) :direction :n}
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:s {:x 0 :y (- rover.y 1) :direction :s}))
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:s {:x 0 :y (- rover.y 1) :direction :s}
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:w {:x (- rover.x 1) :y 0 :direction :w}
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:e {:x (+ rover.x 1) :y 0 :direction :e}))
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(fn rover [x y direction]
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{: x
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@ -35,16 +37,19 @@
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{}))
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(let [r (rover 0 0 :n)]
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(expect
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"Moves north when pointing north and asked to move forward"
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(r:command [:f])
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{:x 0 :y 1 :direction :n}))
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(expect "Moves north when pointing north and asked to move forward"
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(r:command [:f]) {:x 0 :y 1 :direction :n}))
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(let [r (rover 0 0 :s)]
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(expect
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"Moves south when pointing south and asked to move forward"
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(r:command [:f])
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{:x 0 :y -1 :direction :s}))
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(expect "Moves south when pointing south and asked to move forward"
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(r:command [:f]) {:x 0 :y -1 :direction :s}))
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(let [r (rover 0 0 :w)]
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(expect "Moves west when pointing west and asked to move forward"
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(r:command [:f]) {:x -1 :y 0 :direction :w}))
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(let [r (rover 0 0 :e)]
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(expect "Moves east when pointing east and asked to move forward"
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(r:command [:f]) {:x 1 :y 0 :direction :e}))
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(print "OK")
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