184 lines
2.8 KiB
Markdown
184 lines
2.8 KiB
Markdown
# die roll challenges
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Create a die on the micro:bit.
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## Before we get started
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Complete the following [guided tutorial](/microbit/lessons/die-roll/activity), your code should look like this:
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let roll = Math.random(6);
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if (roll == 5) {
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basic.showLeds(`
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. # . # .
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. . . . .
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. # . # .
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. . . . .
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. # . # .`);
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}
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else if (roll == 4) {
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basic.showLeds(`
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. . . . .
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. # . # .
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. . # . .
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. # . # .
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. . . . .`);
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}
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else if (roll == 3) {
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basic.showLeds(`
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. . . . .
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. # . # .
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. . . . .
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. # . # .
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. . . . .`);
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}
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else if (roll == 2) {
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basic.showLeds(`
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# . . . .
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. . . . .
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. . # . .
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. . . . .
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. . . . #`);
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}
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else if (roll == 1) {
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basic.showLeds(`
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. . . . .
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. # . . .
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. . . . .
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. . . # .
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. . . . .`);
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}
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else {
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basic.showLeds(`
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. . . . .
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. . . . .
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. . # . .
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. . . . .
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. . . . .`);
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}
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});
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```
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### Challenge 1
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Modify the line of code with `pick random` so that only number 1-4 can appear on the die.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let roll = Math.random(4);
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if (roll == 5) {
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basic.showLeds(`
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. # . # .
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. . . . .
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. # . # .
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. . . . .
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. # . # .`);
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}
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else if (roll == 4) {
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basic.showLeds(`
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. . . . .
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. # . # .
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. . # . .
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. # . # .
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. . . . .`);
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}
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else if (roll == 3) {
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basic.showLeds(`
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. . . . .
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. # . # .
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. . . . .
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. # . # .
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. . . . .`);
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}
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else if (roll == 2) {
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basic.showLeds(`
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# . . . .
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. . . . .
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. . # . .
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. . . . .
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. . . . #`);
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}
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else if (roll == 1) {
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basic.showLeds(`
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. . . . .
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. # . . .
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. . . . .
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. . . # .
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. . . . .`);
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}
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else {
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basic.showLeds(`
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. . . . .
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. . . . .
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. . # . .
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. . . . .
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. . . . .`);
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}
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});
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```
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### Challenge 2
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Let's make a trick die! Modify the line of code with `pick random` so that only numbers 3-6 can appear on the die. Also note that we need to ensure `roll = 0` when only 1 dot is shown on the BBC micro:bit.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let roll = Math.random(4) + 2;
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if (roll == 5) {
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basic.showLeds(`
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. # . # .
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. . . . .
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. # . # .
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. . . . .
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. # . # .`);
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}
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else if (roll == 4) {
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basic.showLeds(`
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. . . . .
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. # . # .
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. . # . .
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. # . # .
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. . . . .`);
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}
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else if (roll == 3) {
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basic.showLeds(`
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. . . . .
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. # . # .
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. . . . .
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. # . # .
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. . . . .`);
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}
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else if (roll == 2) {
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basic.showLeds(`
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# . . . .
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. . . . .
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. . # . .
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. . . . .
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. . . . #`);
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}
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else if (roll == 1) {
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basic.showLeds(`
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. . . . .
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. # . . .
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. . . . .
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. . . # .
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. . . . .`);
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}
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else {
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basic.showLeds(`
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. . . . .
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. . . . .
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. . # . .
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. . . . .
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. . . . .`);
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}
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});
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```
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### Challenge 3
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Add a couple more conditions so that the BBC micro:bit randomly chooses a number between 1 and 8.
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