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olu adesina
23,007 Pointsi don't get it the user always wins
'Finally if all invaders are neutralized then the loop will'
4:20 'exit because remaining invaders will be zero.'
4:23 'Then we'll return true signifying that the user won.'
we will always reach true statement so does this mean the user always wins
3 Answers
andren
28,558 PointsAt around 4:02 the instructor writes an if statement that will be executed if one of the invader scores, and places a return false statement inside. If that statement is reached then the function will stop, so the return true statement outside the loop will never be reached.
frobe
1,368 PointsWhat never was really mentioned in the videos is that the return keyword ends running the method / function (Level.Play() in this case) immediately after returning the value following the return keyword.
So, no more of the foreach loop processing all _invaders will run; also no more of the while loop counting the remainingInvaders will be processed: all loops exit (all code in the Method exits, actually) and false is returned to the .Play() Method.
In most of the examples so far the return action was not nested in a loop, but located at the very end of the code of e.g. a Method. So we haven't learned this behavior yet.
kevin hudson
Courses Plus Student 11,987 PointsFrobe, surprisingly I understood everything you said :)