Space Rocks Tutorial

[GMteacher1515]

Greetings,

My students and I are going step by step in the Space Rocks Tutorial. As we get to the moving of the ship, we all DnD the code exactly the same. I have about 5 students whose ship will not move. I deleted their sprite and re-created, then re-coded it. Still no movement. Any ideas???

 

[TsukaYuriko]

Are any of the objects solid? Collisions with solid instances will halt all movement.

 

[GMteacher1515]

nope, we follow the directions exactly. I have 30 students and about 6 of them have ships that won't move.

 

[FrostyCat]

They are not following it exactly if they are not getting the same results.

Upload some examples of the ones that don't move. There will be deviations in them that look wrong on inspection.

And if you are using GMS 2.3, when the tutorial starts covering scripts, you have to remember to use the Declare Function action (DnD) or the function keyword (GML). Space Rocks has not been updated to GMS 2.3+ in this regard.

 

[GMteacher1515]

They are not following it exactly if they are not getting the same results.

Upload some examples of the ones that don't move. There will be deviations in them that look wrong on inspection.

And if you are using GMS 2.3, when the tutorial starts covering scripts, you have to remember to use the Declare Function action (DnD) or the function keyword (GML). Space Rocks has not been updated to GMS 2.3+ in this regard.

Appreciate the feedback. I have sat at the computer and typed coding to move left right and forward... I will take screen shots and post here. Maybe a new set of eyes will help.

 

[GMteacher1515]

I had the students completely start from scratch again... Started the tutorial over... Still can not get the ship to move.

Any ideas?

 

[chamaeleon]

I had the students completely start from scratch again... Started the tutorial over... Still can not get the ship to move.

Any ideas?

Use the debugger and show_debug_message()

 

[TsukaYuriko]

Compare a working project and a non-working project side by side. You may want to use a tool that takes two input files and outputs the differences between the two files for this. If there are any technical differences between the two projects, this will clearly point them out.

Upload a sample of a non-working project and I'll take a look at it myself.

 

[FrostyCat]

Once again, upload some samples of projects that don't move properly. Until that happens, all we can do is guess what you've done wrong.

For the students that still don't have movement working, make them watch Part 2 6:00 - 11:00 again. Make sure they're using the Key Down events (NOT Key Pressed events), the Set Instance Rotation actions have Relative checked, and the function call from 10:35 is filled out exactly as shown.

 

[Toque]

Ok. So Ive never used the D and D before. Your students can probably code better than I can.

I followed the tutorial. And just followed the tutorial for the basic movement. Its pretty simple and works fine.

Im using 2.3 on a mac shouldn't make any diffrence?

Here is the project file but honestly there isn't anything in there that isn't in the video.
https://www.dropbox.com/s/hticu5ap4y9xbru/Spce_rocks_DND-TUT. .zip?dl=0

 

[TheouAegis]

It would be odd if 5 people all did it (unless they cheated off each other for some reason...), but make sure none of them have Physics Enabled in the room. The Space Rocks tutorial uses GM's built-in movement, right? That functionality is disabled when Physics is enabled for the room. An object with physics enabled can function in a normal room, but a normal object cannot function in a Physics room.