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Game Logic Methods Solution
1:56See the solution for the previous four game logic methods.
Welcome back.
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You just tackled four methods on your own.
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Mark, checkForWin,
switchPlayers, and gameOver.
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Most of these were short methods.
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Let's go through the solutions for
each one.
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We'll start with the mark
method in space.js.
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The purpose of this method was to change
a given space object's token property so
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it's set to the token object
that was dropped into it.
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The token object is
passed in as an argument.
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To update the property value,
it's just this.token = token.
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Pretty easy, right, okay.
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Let's move back to game.js.
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The code for an explanation of the
checkForWin method was provided to you.
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You can see my method here,
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but I've got the code collapsed in my
text editor because it's pretty lengthy.
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Make sure you copied the provided
solution into the game.js file or
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checked yours against it.
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Okay, next,
you wrote a method called switchPlayers.
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This method changes the value of
the active property of each player.
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The active player becomes inactive and
vice versa.
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I used a for-of loop to
circle through each player.
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Then, I used a ternary expression to
change the value of the property.
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This part of the expression
indicates a test or condition.
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It's saying, if the player's
active property equals true, then,
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if the condition passes, return false.
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If it fails, return true.
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See the teacher's notes for
more info on ternaries.
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Finally, let's look at
the gameOver method.
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This method is called
when the game is over.
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Its job is to display a game
over message in the browser.
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It receives the message,
a string, as an argument, and
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then updates the game-over HTML element.
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So it's visible, and contains the message.
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Great work, in the next step you'll put
all of these methods together to complete
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our game logic.
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