# spinner challenges create an arrow that randomly points to a player. #docs ## Before we get started Complete the following guided tutorial: * [tutorial](/lessons/spinner/tutorial) At the end of the tutorial, click `keep editing`. Your code should look like this: ``` input.onGesture(Gesture.Shake, () => { let randomArrow = Math.random(4) if (randomArrow == 0) { basic.plotImage(` . . # . . . # # # . # # # # # . . # . . . . # . . `) } if (randomArrow == 1) { basic.plotImage(` . . # . . . . # . . # # # # # . # # # . . . # . . `) } if (randomArrow == 2) { basic.plotImage(` . . # . . . . # # . # # # # # . . # # . . . # . . `) } if (randomArrow == 3) { basic.plotImage(` . . # . . . # # . . # # # # # . # # . . . . # . . `) } }) ``` ### Challenge 1 Modify the random number generator so that it can include new arrows we will create in the next challenge. ``` input.onGesture(Gesture.Shake, () => { let randomArrow1 = Math.random(8) // *** // **. . .** if (randomArrow1 == 4) { basic.plotImage(` # # # # . # # # . . # # # . . # . . # . . . . . # `) } if (randomArrow1 == 5) { basic.plotImage(` . # # # # . . # # # . . # # # . # . # # # . . . . `) } if (randomArrow1 == 6) { basic.plotImage(` # . . . . . # . . # . . # # # . . # # # . # # # # `) } if (randomArrow1 == 7) { basic.plotImage(` . . . . # # . . # . # # # . . # # # . . # # # # . `) } }) ``` * Do **not** run the code yet because it will not work until you have conditions for every random number. ### Challenge 2 Let's add four more arrows that point diagonally. ``` input.onGesture(Gesture.Shake, () => { let randomArrow2 = Math.random(4) // **. . .** if (randomArrow2 == 4) { basic.plotImage(` # # # # . # # # . . # # # . . # . . # . . . . . # `) // *** } if (randomArrow2 == 5) { basic.plotImage(` . # # # # . . # # # . . # # # . # . # # # . . . . `) // *** } if (randomArrow2 == 6) { basic.plotImage(` # . . . . . # . . # . . # # # . . # # # . # # # # `) // *** } if (randomArrow2 == 7) { basic.plotImage(` . . . . # # . . # . # # # . . # # # . . # # # # . `) // *** } }) ``` * Run your code to see if it works as expected ### Challenge 3 Add some other arrows if there are more than 8 players.