Task Build a Chat bot
What is a Chat Bot?
http://www.elbot.com/
Hi Human! My name is ELBOT
and I’m a Chat Bot. Click my
red button to activate me!
Are allelbot.com
you humans thisand
slow!
Visit
fuse?
typeHave
to you
talkblown
to ahim?
Seriously!
Are you afraid? Come on Click
Find me another human this
me!
one is faulty!
Chat bots look like they
have some intelligence
to them. But, in reality
Hmm ! Well I think I’m
their conversations
smarter than a human…
Have you met my cousin
are just a lot of clever Siri? If humans’ are so
smart why do they always
ask us computers daft
pre-programmed
questions?
Do I look like I know what
responses to
the fox say’s? But I bet if
you ask Siri he’ll know…
anticipated inputs..
What is an
input?
Any information or data that's entered or sent
to the computer to be processed is
considered input.
Input or user input is most often sent to the
computer using an input device such as
a keyboard or mouse.
What is an output?
An output is anything where information comes out of the computer.
Printouts are called Hard copy soft copy is viewed on sc
Soft copy is a copy of text stored on the
computer and only accessible through the
computer. The most common method of
displaying a soft copy is through a
computer monitor or other display.
We are going to try make the user feel like they are having a conversational dialogue
“chat” with the computer. To do this we will need to get and store some personal
information.
We are going to need a container In the computers
memory to store the name of the users name. Lets
create a VARIABLE , this memory container needs a
sensible name.. How about
1
We don’t know the name
yet so leave this TEXT block
empty.
We’ll need a greeting!
Create a new variable
2
Add a suitable welcome like
this one.
TOP TIP
Put a space after the word
YOU
https://blockly-demo.appspot.com/static/apps/code/index.html?lang=en#629t4p
Lesson 1 Video link optional Teacher example components link
Chat bots need INPUT
Call up the User name
variable
Get
INPUT
Type a polite question.
Hi, im ROBOT ROB. What’s your
name?
3
Now add the PRINT block.
This will display the
Username on screen
4
Chat bots give
OUTPUT
5
Link your blocks and
run your program
Simple Chat bot greeting.
Challenge
• Your program should now look like this. Did
you follow the instructions carefully to make
the first stage?
Lesson 2 In our next lesson we are going to make a routine
which will do some counting and will output a
message to the user which will make the chat bot
appear intelligent.
Task- Now create a procedure called chat
bot.
Place your code inside the procedure.
Remember to include the procedure call
command.
Lesson 2 Video time 0.15.30 (roughly
the middle of the slider) link
Load last lessons program.
https://blockly-demo.appspot.com/static/apps/code/index.html?lang=en#2qg93k
Extension
What should we do if the user behaves in an unexpected way.
Lets say the user does not enter a name that is sensible.
It would be difficult to write a set of instructions to spot that the
name is invalid.
The program would respond – Hello ksfuhdsakfjhaskfj nice to
meet you!
But what would happen if the user didn’t type anything but just
pressed enter.
Our program would say Hello nice to meet you!
Have a look at Elbot and try presing enter.
https://blockly-demo.appspot.com/static/apps/code/index.html?lang=en#2qg93k
Extension
What did Elbot do?
Elbot gives a cheeky message, “oi type louder! I can’t hear you!”
Elbot must be using an array to store these messages
Messages must be called for using a random command like the
one we used in the blockly minecraft task.
Challenge task.
Using the Minecraft code to help you. Create a routine (algorithm) that checks to see if no
data was NO
entered
gives
a random
cheeky
comment.
data –and
look
at elbot
no data
entered
https://blockly-demo.appspot.com/static/apps/code/index.html?lang=en#2qg93k
The slides after this point are work in
progress and labels to help explain
append.
• Class activity using a gratnell talk through
what a variable is and the main types
•
•
•
•
String
Integers
Floats
Array - lists
Nice to meet you
FRED ! FRED
Did you know that your
name is
4
Characters long
APPEND
add (something) to the end of a something.
synonyms:
add, attach, affix, adjoin, include, put in/on;
With numbers append really means add
e.g. Variable_X = 1
Varibale_Y=2
Variable Z= 0
Variable Z = X APPEND Y = 3
Print Variable_Z
So variable Z == 3
Variables and append demonstrated
https://blockly-demo.appspot.com/static/apps/code/index.html?lang=en#2qg93k
COUNT
https://blockly-demo.appspot.com/static/apps/code/index.html?lang=en#2qg93k
Advanced While true LOOPS
No input
Multiple random comment no data entered!
https://blocklydemo.appspot.com/static/apps/code/index.html?lang=en#n
g4hhe
String Variable (text)
UserName
String Variable (text)
Greeting
String Variable (text)
NameLength
String Variable ()
NameLengthComment