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inserting macros instead of hard coded board names

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Peli de Halleux
2016-11-01 10:42:42 -07:00
parent 6799721c9b
commit d76d92e041
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10
docs/lessons/graphics.md
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@ -4,13 +4,13 @@ An introduction to graphics for the Block Editor.
## Before we get started
Ensure you have completed the 'Hello, world!' and Loop tutorials and tested them on a simulator or on BBC micro:bit.
Ensure you have completed the 'Hello, world!' and Loop tutorials and tested them on a simulator or on @boardname@.
```blocks
basic.showString("HI!");
```
The BBC micro:bit has a grid of 25 LEDs, so we can use these to display images.
The @boardname@ has a grid of 25 LEDs, so we can use these to display images.
We’ve already experimented with the `show string` block that displays a string (some text) that we program it to. However we can use more blocks from the **Images** drawer to render or display images in different ways.
@ -22,7 +22,7 @@ We can draw little images from the LEDs by ticking boxes. Drag a `show image` bl
### Plotting points
We can also code our bug to plot a point by giving an x (horizontal) and y (vertical) coordinates, from 0 to 4. Click the **LED** drawer and drag a `plot` block. Try changing the coordinates and see the effect this has on the BBC micro:bit.
We can also code our bug to plot a point by giving an x (horizontal) and y (vertical) coordinates, from 0 to 4. Click the **LED** drawer and drag a `plot` block. Try changing the coordinates and see the effect this has on the @boardname@.
We can also unplot a point (turn the LED off again) using the `unplot` block. So we could create a flashing LED program, using the `pause` block to create a delay.
@ -43,7 +43,7 @@ The pause block is in milliseconds, so setting it to 1000 will have a pause of a
### Devising algorithms for shapes
An algorithm is a set of steps to follow to solve a problem. We can begin to draw shapes on the BBC micro:bit using an algorithm.
An algorithm is a set of steps to follow to solve a problem. We can begin to draw shapes on the @boardname@ using an algorithm.
For example, we could draw a straight line with this code:
```blocks
@ -70,7 +70,7 @@ basic.forever(() => {
Animations are changes happening at a certain rate. For example, we could add the `pause` block from the **Basic** drawer with our square algorithm – this will slowly draw a square (as an animation).
We could create more complex animations, for example we could make our BBC micro:bit display an explosion or fireworks.
We could create more complex animations, for example we could make our @boardname@ display an explosion or fireworks.
### Image variables