|--------|                           <-
|        |    Big wave, big problem   \
|        |  <-------------            | |      The building has to withstand
|        |                           /        all the force hitting it
|        |                          /
|   []   |                         /
---------------------------------------------------------ground------------------

<- ------------ "Hey, where's my target?"
       \
       | |      The waves go over the building - it doesn't matter how big the
<-    /        wave is if it doesn't hit :P
     /
    /
-------=-------------------------------------------------ground------------------
   |        |
   |        |     (Note: the "=" is the entrance hatch to our building)
   |        |
   |________|---- "Gtfo wave, nothing to hit here"