This week we looked at creating a game from the beginning and at the steps we might go through to complete it. We looked at flowcharts and pseudocode and then we broke down the program into bite size pieces and wrote functions for these. We got about half way through this and hopefully we’ll complete it next week. Here is a screenshot of what we have completed so far.
Here are my slides from this week. python session4
We hope you had a great Halloween!
As you know, we took a break last weekend for the bank holiday. This weekend we are back and will be at our usual location from 12:00 on Saturday 2 November.
If you don’t receive email messages and would like to, please contact us at coderdojoathenry@gmail.com.
Hope everyone enjoyed last week.
This week we began a series of sessions on Cryptography. We began by demonstrating why we might use Cryptography. What is Cyrptography
What created a Scratch project to Encrypt a single word or sentence using a Reverse Cipher. Notes for this Scratch project are at: Scratch Project Notes (Reverse Cipher)
We then improved the Scratch project to Decrypt the same word or sentence back to its original form.
We discussed the limitations of a Reverse Cipher and began the introduction of the next session where we will be creating a Scratch program to Encrypt and Decrypt a word or sentence using one of the most famous ciphers the “Caesar Cipher”. Named after the Roman figure Julius Caesar.
Hi everyone,
Thanks to everyone that showed up today. Again, a big thank you to Julie for taking the session last week.
This week, we built a new game which we were calling “Ghostcatcher” We used code that we have learnt over the last two weeks and again used variables. We will continue to do this over the next couple of weeks, we will make new games but will continue to go over the basic programming concepts each week.
This was our first time creating our own Sprite rather than using one from the library. The paint editor can be great fun and you should experiment with it, creating lots of new Sprites.
Remember ! think in shapes, like we did with the ghost.
A pdf version of the full notes from todays session can be found here: CDA-S3-Challenge03-GhostCatcher.pdf
Try adding your own variables, the code is there for you to look at but why not have a go at it yourself first.
No Coderdojo Athenry next week but hope to see you all back the following Saturday the 27th.
Enjoy the Halloween break!
This week the Python group looked at Functions, Escape Characters and Boolean Operators. We also started to rewrite the Dragon’s Realm game which we will continue with after the break. Don’t forget to look at chapters 5 and 6 of “Invent Your Own Computer Games with Python” http://inventwithpython.com/chapter5.html . Here are my slides from today- python session3
We had a great crowd for our second session of Scratch beginners. Julie did a great job as lead mentor in Martha’s absence.
This week, we added lots of new functionality to our first game: make things happen when Jaws catches the Diver and keeping track of lives.
Here are the presentation slides from the day, in PDF format: CDA-S3-Challenge01-FirstGame-Part2.pdf
See you next time!
We had a good turn out at the python group again today. We did a lot of typing which some of the younger Ninjas found hard going. We won’t be doing that much again for a few weeks. We did a number guessing game which contained some concepts which are used in most computer programs. Our number guessing game is explained in chapter four of “Invent Your Own Computer Games with Python” by Al Sweigart. http://inventwithpython.com/chapter4.html
Hope everyone enjoyed last week.
This week we are going to use a drawing application Paint.net or msPaint, whichever people prefer to use to finish the Calculator off properly.
What we need to do is set the Background in the Calculator to a picture of a real calculator, something like this one…
And then using Paint.net or any other graphics tool we are going to cut out the different numbers and save them all of to seperate files and then use these files as the Sprites.
You should end up with loads of these…
Do one for each number, one for +, -, X and divide. Oh and don’t forget the dot 🙂
If any one is feeling adventurous we might even try and do something with Memory.
We had a slow start to the Python session due to Wi-Fi and installation issues. However once we got moving we managed to cover variables including strings, math operators and inputs and outputs.
Ninjas are encouraged to read the first three chapters of Invent Your Own Computer Games with Python by Al Sweigart, which is available at http://inventwithpython.com/chapters/ .
Next week we will be looking at loops and decisions in a number guessing game and comparing it to a similar scratch program.
Here are my slides from Week-1
session1slides
We had a great crowd for our first session today in Scratch beginners. Thank you all for coming and for your patience while we got everyone sorted out with downloading Scratch 2.
We started today with our first game”Jaws”, as well as learning how to write commands to move our sprites, we took a brief look at the interface for Scratch 2.
We also took a first look at some fundamental concepts that we will be using throughout the year. Today we looked at the X and Y axis as well as the number of degrees in a circle.
Here are the presentation slides from the day, in PDF format: CDA-S3-Challenge01-FirstGame-Part1.pdf
I hope you all enjoyed today and hope to see you all again over the next couple of weeks!
Hi everyone,
We completed our Mario game this week. We coded Mario so that he always floated down on to the wall. We added a fraction of a second of a wait so that it appears that he floats as he comes down. This also allows time for you to navigate left or right as needed.
We also introduced a more advanced concept, the Parallax effect, whereby objects further away appear to move slower than objects nearer. We coded mountains and a Sun to demonstrate this.
You will a full version of the my notes in pdf form here. CDA-S4-Challenge09-Scrolling.pdf
Have a great Easter!
Martha
CoderDojo Athenry 