realrobotshk
/
onlinecodesimulator
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

added content for 3rd robot lesson

master
Jake 2025-07-06 18:44:13 +08:00
parent 4f8c2ba774
commit 092963c511
2 changed files with 24 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
data/lessons.js
View File

@ -1101,25 +1101,39 @@ robot.turn(0)
level: 'robot', level: 'robot',
map: 'Level 3', map: 'Level 3',
content: ` content: `
<p>Turning is very similar to moving, we use the <code>robot.turn(amount)</code> function.</p> <p>We can't do much just by moving a robot using delays, so lets start using its sensors.</p>
<p>The <code>amount</code> parameter is a number between -1 and 1, where -1 is full left, 0 is no turn, and 1 is full right.</p> <p>The <code>robot.get_distance_left()</code> function returns the length of the left sensor beam.</p>
<p>When there is something blocking it, it gets smaller, and you can use this to detect obstacles.</p>
<p>Try this code, and watch the console output:</p>
<pre><code> <pre><code>
import robot import robot
import time import time
robot.turn(1) robot.move(0.5)
time.sleep(2) while True:
robot.turn(0) distance = robot.get_distance_left() # Get the distance from the left sensor
print(distance) # Print the distance
time.sleep(0.1) # Wait for on tenth of a second
</code></pre> </code></pre>
</br> </br>
<p>This code causes the robot to turn right at max speed for 2 seconds, then stop.</p> <p>Note how the distance changes as the robot moves.</p>
<p>We can use this to automatically steer around obstacles.</p>
<p>Add the following code AFTER the <code>print(distance)</code> line:</p>
<pre><code>
if distance < 50: # If the distance is less than 0.5 meters
robot.turn(1) # Turn right at max speed
else:
robot.turn(0) # Stop turning
</code></pre>
</br>
<p>If you want to get the length of the right sensor, it's <code>robot.get_distance_right()</code>.</p>
<p>You'll need to combine moving, turning, and waiting to reach all the checkpoints.</p> </br>
<p><strong>Note:</strong> The values for move, turn, and sleep can all be decimal numbers (floats). ie <code>time.sleep(0.5)</code> or <code>robot.move(0.8)</code></p> <p><strong>Note:</strong> Having that short <code>time.sleep(0.1)</code> is very important, if the loop runs too fast it overwhelms the system and nothing will happen.</p>
`, `,
objectives: [ objectives: [
"Reach the first checkpoint", "Reach the checkpoint",
"Code should complete without errors" "Code should complete without errors"
], ],

2
pyodide-worker.js
View File

@ -122,7 +122,7 @@ class RobotModule:
deg = -1 deg = -1
elif deg > 1: elif deg > 1:
deg = 1 deg = 1
deg = deg/250 deg = deg/150
send_to_main("turn", deg) send_to_main("turn", deg)
robot = RobotModule() robot = RobotModule()