172 lines
2.7 KiB
Markdown
172 lines
2.7 KiB
Markdown
# die roll activity
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Create a die on the micro:bit
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### ~avatar avatar
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### @video td/videos/die-roll-0
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Welcome! This tutorial will help you create a die. Let's get started!
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### ~
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Let's create a condition for when the micro:bit is shaken.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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})
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```
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We need to show a random value from 1 to 6 on our die. So let's make a local variable called **roll**.
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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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})
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```
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We need a condition for if **roll** is 5. We will show a `6` if **roll** is 5 because **roll** has a range from 0 to 5. We can use `show LEDs` to display the side of a die that shows 6.
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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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});
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```
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Let's use an `else if` condition for if **roll** is 4. If **roll** is 4 we can show 5 dots on the die.
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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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});
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```
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Now we need to repeat the same steps for if **roll** is 3. If **roll** is 3 we will show `4` on the die.
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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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});
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```
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Let's also repeat these steps to show the 3, 2, and 1 on the die. We are almost done with our die!
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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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### ~avatar avatar
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Excellent, you're ready to continue with the [challenges](/microbit/lessons/die-roll/challenges)!
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### ~
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