# Embedded Code Testing

## Basic

### Syntax

```
<code python>
{YOUR CODE}
</code>
```

### Example

<code python>
Web VPython 3.2

scene.caption = """To rotate "camera", drag with right button or Ctrl-drag.
To zoom, drag with middle button or Alt/Option depressed, or use scroll wheel.
  On a two-button mouse, middle is left + right.
To pan left/right and up/down, Shift-drag.
Touch screen: pinch/extend to zoom, swipe or two-finger rotate."""

side = 4.0
thk = 0.3
s2 = 2*side - thk
s3 = 2*side + thk

wallR = box (pos=vector( side, 0, 0), size=vector(thk, s2, s3),  color = color.red)
wallL = box (pos=vector(-side, 0, 0), size=vector(thk, s2, s3),  color = color.red)
wallB = box (pos=vector(0, -side, 0), size=vector(s3, thk, s3),  color = color.blue)
wallT = box (pos=vector(0,  side, 0), size=vector(s3, thk, s3),  color = color.blue)
wallBK = box(pos=vector(0, 0, -side), size=vector(s2, s2, thk), color = color.gray(0.7))

ball = sphere (color = color.green, radius = 0.4, make_trail=True, retain=200)
ball.mass = 1.0
ball.p = vector (-0.15, -0.23, +0.27)

side = side - thk*0.5 - ball.radius

dt = 0.3
while True:
    rate(200)
    ball.pos = ball.pos + (ball.p/ball.mass)*dt
    if not (side > ball.pos.x > -side):
        ball.p.x = -ball.p.x
    if not (side > ball.pos.y > -side):
        ball.p.y = -ball.p.y
    if not (side > ball.pos.z > -side):
        ball.p.z = -ball.p.z
</code>


## With Line Numbers and Highlighting

### Syntax

```
<code python [enable_line_numbers="true", highlight_lines_extra="ARRAY_OF_LINE_NUMBERS"]>
{YOUR CODE}
</code>
```

### Example

<code python [enable_line_numbers="true", highlight_lines_extra="27,29"]>
Web VPython 3.2

scene.caption = """To rotate "camera", drag with right button or Ctrl-drag.
To zoom, drag with middle button or Alt/Option depressed, or use scroll wheel.
  On a two-button mouse, middle is left + right.
To pan left/right and up/down, Shift-drag.
Touch screen: pinch/extend to zoom, swipe or two-finger rotate."""

side = 4.0
thk = 0.3
s2 = 2*side - thk
s3 = 2*side + thk

wallR = box (pos=vector( side, 0, 0), size=vector(thk, s2, s3),  color = color.red)
wallL = box (pos=vector(-side, 0, 0), size=vector(thk, s2, s3),  color = color.red)
wallB = box (pos=vector(0, -side, 0), size=vector(s3, thk, s3),  color = color.blue)
wallT = box (pos=vector(0,  side, 0), size=vector(s3, thk, s3),  color = color.blue)
wallBK = box(pos=vector(0, 0, -side), size=vector(s2, s2, thk), color = color.gray(0.7))

ball = sphere (color = color.green, radius = 0.4, make_trail=True, retain=200)
ball.mass = 1.0
ball.p = vector (-0.15, -0.23, +0.27)

side = side - thk*0.5 - ball.radius

dt = 0.3
while True:
    rate(200)
    ball.pos = ball.pos + (ball.p/ball.mass)*dt
    if not (side > ball.pos.x > -side):
        ball.p.x = -ball.p.x
    if not (side > ball.pos.y > -side):
        ball.p.y = -ball.p.y
    if not (side > ball.pos.z > -side):
        ball.p.z = -ball.p.z
</code>


## With Line Numbers, Highlighting, Title, and ReNumbering

### Syntax

```
<code python [enable_line_numbers="true", highlight_lines_extra="ARRAY_OF_LINE_NUMBERS", start_line_numbers_at="NUMBER"] | TITLE>
{YOUR CODE}
</code>
```

**Note: Highlighting lines uses an absolute number (i.e., the given number of lines sets the length and order starting from 1).**

### Example

<code python [enable_line_numbers="true", highlight_lines_extra="4,6,8", start_line_numbers_at="27"] | Focusing on the Loop >
while True:
    rate(200)
    ball.pos = ball.pos + (ball.p/ball.mass)*dt
    if not (side > ball.pos.x > -side):
        ball.p.x = -ball.p.x
    if not (side > ball.pos.y > -side):
        ball.p.y = -ball.p.y
    if not (side > ball.pos.z > -side):
        ball.p.z = -ball.p.z
</code>