89 lines
1.6 KiB
Markdown
89 lines
1.6 KiB
Markdown
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# meteorite quiz answers
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create the game meteorite #LED #number #math #acceleration #docs
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## Name
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## Directions
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This is the answer key for the [meteorite quiz](/microbit/lessons/meteorite/quiz)
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## 1. Write the code that sets up the position variables of meteorite 1. (Hint: look inside the function "initialize game".)
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<br/>
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```
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meteorite_1X = Math.random(5)
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meteorite_1Y = -4
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```
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## 2. Write the code that plots the initial position of the ship. (Hint: look inside the function "initialize game".)
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<br/>
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```
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led.plot(shipLeftX, 4)
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led.plot(shipLeftX + 1, 4)
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```
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## 3. Write the code that will detect if a meteorite 1 collided with the ship. (Hint: look inside the function "move meteorite 1".
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<br/>
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```
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if (meteorite_1X == 4 && (shipLeftX == meteorite_1X || shipLeftX + 1 == meteorite_1X)) {
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gameOver()
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}
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```
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## 4. Write the code that increase the difficulty by making the game run faster.
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<br/>
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```
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pauseDifficulty = (pauseDifficulty * 49) / 50
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```
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## 5. Write the code that moves the ship left.
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<br/>
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```
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led.unplot(shipLeftX + 1, 4)
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shipLeftX = shipLeftX - 1
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led.plot(shipLeftX, 4)
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```
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## 6. Write the code that moves the ship right.
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<br/>
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```
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led.unplot(shipLeftX, 4)
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shipLeftX = shipLeftX + 1
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led.plot(shipLeftX + 1, 4)
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```
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## 7. Write the function that checks if moving the ship resulted in a collision with meteorite 1.
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<br/>
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```
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if (shipLeftX == meteorite_1X && meteorite_1Y == 4) {
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gameOver()
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}
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```
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## 8. Write the code that flashes all the LEDs thee times to create the effect of a crash. (Hint: look at the function "game over".)
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<br/>
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```
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led.plotAll()
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for (let i = 0; i < 3; i++) {
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led.fadeIn(400)
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led.fadeOut(400)
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}
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```
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