New extension: Jumping In 3D

[github-actions]

Description

a quick and easy way to add jumping for a 3D game (using the built-in 3D engine).

How to use the extension

a premade jumping event for 3D games.
features:

• jumping function:
  • Confugrable fall speed (pixels per frame).
  • Configurable Jump speed (pixels per frame).
  • Configurable player height (pixels on z-axis).
  • Configurable floor height (pixels on z-axis).
  • Configurable button for jumping.
• Gravity function (experimental):
  • Configurable fall speed (pixels per frame).
  • Configurable player height (pixels on z-axis).
  • Configurable floor height (pixels on z-axis).
    you can also use the variable JumpingIn3D.IsJumping to detect if the player is jumping (true when the player is going up, requires Allow Jumping event to be active).
    and the variable JumpingIn3D.IsFalling to detect if the player is jumping (true when the player is falling, requires gravity event to be active).
    must be in an action that allows per-frame actions eg if a variable is true or false here is an example:

Checklist

• I've followed all of the best practices.
• I confirm that this extension can be integrated to this GitHub repository, distributed and MIT licensed.
• I am aware that the extension may be updated by anyone, and do not need my explicit consent to do so.

What tier of review do you aim for your extension?

Community (Unreviewed)

Example file

JumpExtentionGameExample.zip
WASD, space movement, collect stars for higher jumps

Extension file

JumpingIn3D.json.zip

[gabrielzv1233]

hi, i discovered a critical bug, I fixed it, so here is the updated extension, i accidentally used the wrong expression for an event in the "jump" function
JumpingIn3D.json.zip

[D8H]

Thank you for submitting an extension.

I have some suggestions:

• TimeDelta can be used to handle speed as pixels per second.
• What do you think about making it a behavior?

[gabrielzv1233]

• TimeDelta

gravity or jump function?
ill look into TimeDelta, haven't heard of it

[gabrielzv1233]

Thank you for submitting an extension.

I have some suggestions:

• TimeDelta can be used to handle speed as pixels per second.
• What do you think about making it a behavior?

so i got it to work, just going to let you know the game example i gave is quite outdated, so it is not using the new system, when ever i get around to it i will update it tho :), i will need around 4 hours, i am in school and don't have access to a windows device and then i will send the updated extension and if i get around it, the example :)

[gabrielzv1233]

ok so i added TimeDelta() and a few more methods to trigger jumping and updated the example game, i did not make them into behaviors because I just don't see a reason to do that.
example.zip
JumpingIn3D.json.zip

[D8H]

ok so i added TimeDelta() and a few more methods to trigger jumping and updated the example game, i did not make them into behaviors because I just don't see a reason to do that.

A behavior would allow to:

• make several objects jump (some games may need enemies to jump)
• do small or big jumps (by using an action to start the jump that can be called while the button is pressed)
• configure jump properties
• do air-jump
• access jumping states
• access current vertical speed

[gabrielzv1233]

ok so i added TimeDelta() and a few more methods to trigger jumping and updated the example game, i did not make them into behaviors because I just don't see a reason to do that.

A behavior would allow to:

• make several objects jump (some games may need enemies to jump)
• do small or big jumps (by using an action to start the jump that can be called while the button is pressed)
• configure jump properties
• do air-jump
• access jumping states
• access current vertical speed

valid points, i will work on it but may take a long time
i can probably add:
access jumping states - done
access current vertical speed - done
configure jump properties - done
make several objects jump - done
do air-jump will likely need a entire rework for the system

[gabrielzv1233]

Here is the updated extension
JumpingIn3D.json.zip
i added the Behaviors most of the things you suggested (for the behaviors) and renamed some things

[D8H]

Great! I'll take a look.

This section of the platformer documentation explains how the vertical speed is calculated (the figures with yellow lines, the red ones are not useful for this case). In case it can give you some ideas.
https://github.com/4ian/GDevelop/tree/master/Extensions/PlatformBehavior#sequential-calculus-of-the-engine

[gabrielzv1233]

Great! I'll take a look.

This section of the platformer documentation explains how the vertical speed is calculated (the figures with yellow lines, the red ones are not useful for this case). In case it can give you some ideas. https://github.com/4ian/GDevelop/tree/master/Extensions/PlatformBehavior#sequential-calculus-of-the-engine

ok, i realized that the change property functions in the extension editor don't show in the game editor, so ill go fix that

[gabrielzv1233]

Changelog:
toggle Gravity function removed - alternative, disable/enable behavior
added change property function
Changed some labels

i will send the new file later (don't have access to a PC with the GDevelop app currenty)
i keep changing things so, making your job to review extensions harder so i will try to include a video showing the changes (unedited)
changes.webm
please provide any feedback as it helps me improve the extension
extension version - 1.1.1

[D8H]

If it's easier for you, you can focus on either box or model and I'll do some magic for the other one at the end.

Why do you need asynchronicity?
I don't know what effect it can have on doStep (the UI probably should forbid it).

A small tip: actions, conditions and expressions can be generated from properties:

[gabrielzv1233]

If it's easier for you, you can focus on either box or model and I'll do some magic for the other one at the end.

Why do you need asynchronicity? I don't know what effect it can have on doStep (the UI probably should forbid it).

A small tip: actions, conditions and expressions can be generated from properties:

did not realize i had synchronicity on, i turned them on and thanks for doing our "magic" less copy pasting for me lol, it may take a long time till i send the next update because my OS got corrupted on the device i export the extension on :(
ill also change the property setting thing to individual ones using ur method

[gabrielzv1233]

Hi I finally can export the extension, the same changes as the last message went over
JumpingIn3D.json.zip
hope ya like it

[D8H]

Hi I finally can export the extension, the same changes as the last message went over JumpingIn3D.json.zip hope ya like it

I took a look. The changes seems good but I couldn't try it with the first example you sent. You can send only the example if you want as the extension is inside it.

The feature of this extension is a bit like the platformer behavior but without collision detection (which is fine). Extensions users will handle collision themselves and your extension allows them to change the floor level which is a good idea.

Why is there 2 behaviors (one for jumping and one for falling) ?

[gabrielzv1233]

i dont understand what you are meaning by "You can send only the example if you want as the extension is inside it."
i added a gravity function because i thought it would be helpful and add a bit more organization i guess. but i can remove it if you'd like :)

edit: i realized that the gravity behaviour was named inporpperly so ill fix that

[gabrielzv1233]

i dont understand what you are meaning by "You can send only the example if you want as the extension is inside it." i added a gravity function because i thought it would be helpful and add a bit more organization i guess. but i can remove it if you'd like :)

i think i understand what u meant, I'm guessing it was to update the example so here is the example with the updated extension in use
BOUNCE.zip

[gabrielzv1233]

forgot to send the updated files, i fixed some gramatical errors and renamed some stuff :)
BOUNCE.zip
JumpingIn3D.json.zip
any idea how long the rest of the checks will take? its been on the same ones for like 2 weeks now.

[gabrielzv1233]

hey just wondering cuz ya know its been around over a month, how long could it take for this to be merged? i haven't seen anything changed (like get merged or something) and I'm kinda getting worried that it may have been forgotten about ig

[D8H]

Sorry for the wait, we are thinking of a way to avoid behavior duplication. As it will make this extension easier to do, I'm waiting for a future release of GDevelop.

[gabrielzv1233]

Sorry for the wait, we are thinking of a way to avoid behavior duplication. As it will make this extension easier to do, I'm waiting for a future release of GDevelop.
ok thanks

[gabrielzv1233]

Just a quick little thing, i will likely not be adding it the ability to use a object as a floor, this will just be left up to other people who want to update the extension as that is just beyond me.

[D8H]

Just a quick little thing, i will likely not be adding it the ability to use a object as a floor, this will just be left up to other people who want to update the extension as that is just beyond me.

It's totally fine.

[D8H]

I credit you on this extension:

• [Community] 3D jump #1145

I you have time to test it, please tell me if you see improvements that could be made.

[gabrielzv1233]

I may also convert this to just be a physics engine with wall collision ect, minus the like rotating that the normal engine dose when a object partually hits another, so just wall and floor)

[D8H]

I may also convert this to just be a physics engine with wall collision ect, minus the like rotating that the normal engine dose when a object partually hits another, so just wall and floor)

Actually, if you try the example that uses the extension (space bar to jump), you can see that it handles basic floor and wall collision.

• [3D first person] Add jump GDevelop-examples#621

[D8H]

Since the other extension was merged, I'm closing this PR.
Feel free to open it back if you still want to continue working on this extension.