Questions tagged [pset0]

The "Scratch" problem set assigned at the beginning of the course.

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51 views

Touching Color Issues, Recursion and Pseudo-randoms in Scratch

http://scratch.mit.edu/projects/42012966 Hello All, So I was trying to build this little recursive scribbler that makes random little networks of lines, basically like an ant colony but have run into ...
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108 views

how to answer problem sets

I am an online student of CS50.This my first experience as an online student. I have no idea how to attempt the problem set. Am I supposed to write it in MS Word or in some other text editor? Should I ...
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1answer
660 views

Where to submit Problem set 0 assignments

So far i have attended week 0 and week 1 lectures online. For week 0 have created a game in [scratch] (http://scratch.mit.edu/) site. Currently i am doing week 1 or problem set 0 assignments. ...
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94 views

How to make the clone of sprite function in scratch?

I am new to scratch... I was trying to make a game in which a clone of a ball is produced every 3 sec..and has to act exactly like the original sprite ball..but that is not the problem. What I want ...
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63 views

Scratch project shared after submitted

I shared my Scratch project 24 hours after I submitted it (it was an accident of course, I was sure it was already shared), am I screwed ?
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1answer
38 views

Touching event isn't going off, when sprites touch

I am pretty new to Scratch so please pardon my naive code. This is my project for problem set 0. Princess What should be happening is that when the dragon sprite touches the princess sprite, the ...
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46 views

Pset0 isn't under Week 0 but, Week 1. Bug? [duplicate]

The Problem Set 0 which was previously under Week 0 is now displaying under Week 1. Week 0 does not display any Problem Set, and the Problem Set of Week 1 shows under Week 2? Is this some kind of bug ...
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1answer
43 views

Why does this check for equality fail to trigger in my Scratch project?

I attempted to make a basic game where you should click the Dragon and not the girl. I wanted to make it so that when you click the girl you lose a health point and when your health point reaches 0 ...
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3answers
48 views

Pset0 - trying to upload a sound

One of the parts of Pset0 is to attach a sound. I found the turkey sound I want but scratch is not recognizing format. Any suggestions?
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1answer
186 views

How to delete a variable in scratch

This may be a silly question but has wasted so much of my time. I mistakenly created a global variable which should be a local variable. How can I delete or change it to local variable.
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1answer
111 views

Can't move sprites in the Scratch project page

I made a game using Scratch, which you can see here. This game is working fine in the editor window but on the "Project" page when I click the cat sprite, it does not move! Another bug: Why are the ...
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208 views

Subtitle files for problem set 0 videos

Where can I find the SRT files that go with the videos in the problem set 0 specifications?
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75 views

Walkthrough cat/bird in Scratch

I duplicated the walkthrough where the cat chases the bird, but it does something completely different. The cat never catches the bird and keeps a set distance. Whenever the cat goes near, it suddenly ...
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2answers
217 views

How can I submit Pset0 if I have problems with the login?

I would like to submit pset0 but I cannot login; I receive the message that Email or password is incorrect. I think that the link I am using is good and I'm pretty much sure I'm typing everything ...
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1answer
87 views

I can't see problem set 0 at all

I see a specifications bullet and nothing below. I am very interested in this course and I need some help!
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159 views

Functions returning a value?

I'm trying to implement multi-dimensional arrays in Scratch, for an implementation of maze generation. To simplify, I'd like to implement a couple of custom blocks which return a value, e.g. ...
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1answer
201 views

More than 1 month since submitting problem set 0, I still have no grade. What can I do?

The project is: http://scratch.mit.edu/projects/24864754/#player Martival is my username in scratch. Problem Set 0 was submitted through https://x.cs50.net/2014/psets/0/ as per instructions and I ...
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1answer
576 views

How do I submit pset0?

I started the cs50x online course a few days ago and I've just finished my Scratch program for pset0. I'd like to submit it, however I can't find pset0 in the submission interface on http://apps.cs50....
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64 views

Where can I find instructions for using the Appliance

Most everything is well; presented, however the Appliance is presented mainly during the lecture where the camera focus is on Malan; the display behind him is so out of focus that many characters ...
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1answer
99 views

Can't see images for questions in pset0 submission

I submitted problem set 0, but had problems with the images that inform the additional questions we need to answer. This meant I had to guess 3 of the 10 questions on this page. They wouldn't appear ...
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1answer
159 views

problem set-0 submitted but no notification about successful submission in the gradebook? [duplicate]

I have submitted my pset0 but it doesn't show that it has been submitted in the gradebook. Does it show like that or i will only receive the grades? My scratch project name is "Bat??...man."
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1answer
25 views

All clones in list affected when only one's attribute changed

This is sort of a follow up to a previous question about touching: In my game, clones of bats appear and move slowly down the screen and are to be shot down. I've fixed the problem where the bats didn'...
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1answer
1k views

Problems with clones sensing “touching” in Scratch

In my game, clones of bats appear and move slowly down the screen and are to be shot down. The biggest problem that I'm having is that for some reason it isn't always registering when the laser bolt ...
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2answers
65 views

Will I still use the Scratch in PSet 1, 2 and so on?

Currently doing the project for pset0 and wondering does the project have to be done completely or it is could be an ongoing project for next problem sets. I started to make the chess game for pset0, ...
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2k views

How to solve problem set 0 and how to submit it?

Problem Set 0 specification page has lots of text which makes it confusing. Please help me understand the problem, figure out how to solve it and to submit it!
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1answer
1k views

Do I have to do problem set 0?

I was wondering, do I have to do problem set 0? I already have prior programming experience, and I'm hoping to get an Honor Code certificate, but Scratch seems a bit ridiculous to me (without wanting ...
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181 views

Where can I find comments on my projects

I have looked in my grade book and I received a 1 for pset0 and a .39 for pset1. Is a 1 the highest score you can get? I thought the psets were graded on a 1-5 scale? For the mario exercise I got a ...
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3answers
47 views

Pset0 Cant figure out some bug [closed]

Can someone check why only “Auch” broadcast is working in my "starfish" script and not the “Auch2”? I made them the same way. http://scratch.mit.edu/projects/24876229/
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89 views

Debugging Scratch

My code was working fine with the first two sprites introduced and then it stopped working after I made it more complicated. The goal of the game is shoot 100 balloons with the arrow by clicking on ...
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3answers
145 views

Help with implementing collisions and gravity in Scratch

I am fairly new to programming & only have extremely novice experience using Python (which was even more basic than what I can do in Scratch). I have been trying to make a 2 player volleyball ...
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3answers
124 views

Working on PSet0

I am new to CS50! So I am just looking for project ideas that I can actually do at a medium level difficulty. Don't want to get too bogged down with the project itself! Please help! Regards,
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1answer
97 views

Problem set 0, need to fill up requirements

so i was working on problem set 0, I have made a project where when a user points the mouse over an animal it plays it's sound, so far i have been able to use if-else conditions and loops, but it ...