Jump to content

Recommended Posts

Posted (edited)

I am struggling to figure out how to calculate the heading for a projectile, i.e. in .shoot or setArrowHeading, between two entities.

For example, if I have entities A and B, and I want a projectile to fire from A to B but want to ignore the facing, I had thought it would have been simple enough to do ...

x = target.getX() - firer.getX()

... for x, y and z. This seems to fire it in weird and wonderful directions.

After much Googling, it is still not clear to me what I should be passing into shoot for pX, pY and pZ.

Any tips or suggestions would be really appreciated. 

Edited by Scytale
Posted

if the idea requires mathematical knowledge that you do not have (working with angles) and programming skills you do not have (skipping math and finding a way to reuse existing projectile logic), why are you still working on this mod? surely you can come up with a mod idea without impassable barriers.

Posted
  On 12/16/2022 at 4:57 PM, MFMods said:

if the idea requires mathematical knowledge that you do not have ...

Expand  

My experience to date, in this forum, has been some wonderful friendly people who were willing to help and provide some kind assistance.

  • 2 weeks later...
Posted

Aside from the passive aggressive response, there was a tip buried there ... mathematical knowledge.

For closure ...

The heading between two entities is a rotation around the x and y axis - x for horizonal rotation and y for vertical. Thus simple trigonometry is used to calculate the angle of rotation between the x,y coordinates of the two entities.

  • Scytale changed the title to [Solved] [1.19] Heading between two objects

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

  Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

  Your link has been automatically embedded.   Display as a link instead

  Your previous content has been restored.   Clear editor

  You cannot paste images directly. Upload or insert images from URL.

Announcements



  • Recently Browsing

    • No registered users viewing this page.
  • Posts

    • Hey there! I removed Bobby as Pyralis suggested and found that I still had that and a another closely related bug (or same bug, different presentation) wherein a torch only illuminates its own block and gets smoothed 1 block out, then gone.   After comparing your modlist to mine (I'm on fabric, also 1.20.1) I found we had 2 mods with the same versions. Mine || Yours Bobby-5.0.1.jar ||bobby-1.20.1_v5.0.1.jar ImmediatelyFast-Fabric-1.2.17+1.20.4.jar || ImmediatelyFast-Forge-1.2.17+1.20.4.jar Removing ImmediatelyFast.. immediately (馃槈) seems to have fixed the issue. Since it's client only- no new world needed either! To note, I also removed all mods related to or containing direct requirements for Sodium, Indium and Iris which may have played a role, I did not test with re-adding.
    • For anyone still looking for the equivalent for 1.19.2+, the render type should be set for the model. In datagen, this can be done by using ModelBuilder::renderType, otherwise just add the line directly to the json file. As for the validity of this question, the idiomatic solution is presented nowhere online; ModelBuilder::renderType is never addressed when discussing block render types meaning that the solution I have provided is the first mentioned usage. Furthermore, there are no external references to this function meaning that to discover its existence requires a deep search through Forge's code. Therefore it is not only understandable but expected that most beginner modders would struggle to find this function given the already poor documentation of Forge's API.
    • Same issue without voicechat?
    • Start by following the docs to get a workspace setup: https://docs.minecraftforge.net/en/latest/gettingstarted/ Then poke around some of the tutorials, https://www.mcjty.eu/docs/1.20/ used to be the goto, but not sure if there are any updates for regular forge or not, but if you've brushed up on Java, it will be enough to get you started. Poke around the Minecraft and Forge sources to see how things are done. Read the FAQ for information on how to post code/logs when you run into issues. Share as much info on issues you have as possible. Use github to host projects, chances of someone helping are higher when they can actually see all your code and/or build it themselves. And finally, keep it on the forums, don't direct message people with questions, most people do not provide personal support like that. Also keep in mind forums posts are not always immediately answered, if you're looking for a quicker response, you can always try the Minecraft Forge discord server.
    • Hello, I have a Forge Minecraft sever (I host it at g-portal.com) which has always worked fine and I had no problems, but today it doesn't wanna work anymore. Today I started the server and the status said online, but after a few seconds it said this: "Start failed". And then out of nowhere it restarted itself and the same thing happened again and again and now it's in an infinite loop where it just keeps failing and then restarts. Here's the download link for the server logs: https://www.mediafire.com/file/sq30dgoonjevib1/2025-07-06-1.log/file Does anyone know how to fix this? If yes I would really appreciate help. Best wishes, Gabs1107
  • Topics

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.