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Question Aircraft Engine Power

Discussion in 'Scripting' started by TomMarvoloRiddle204, Sep 26, 2022.

  1. TomMarvoloRiddle204

    TomMarvoloRiddle204

    Joined:
    Dec 24, 2020
    Posts:
    46
    Is there anyway to change the fade of a particle system from the code if my vehicle is going fast it becomes less faded and if it goes slow it becomes more faded?
     
  2. Kurt-Dekker

    Kurt-Dekker

    Joined:
    Mar 16, 2013
    Posts:
    29,760
    You can manipulate all the properties of ParticleSystems.

    The general use pattern is to:

    - have reference to the PS
    - use the PS to obtain "reference" to the struct (value!) of that module
    - manipulate the properties of that struct

    This process is weird because the "reference" is really a struct that Unity magically maps back into the engine for you.

    I suggest making an empty project and experimenting with the effect you want, get comfy with the above API process.
     
    Last edited: Sep 26, 2022
  3. TomMarvoloRiddle204

    TomMarvoloRiddle204

    Joined:
    Dec 24, 2020
    Posts:
    46
    Okay......Can. you make that easier to understand.
     
  4. Kurt-Dekker

    Kurt-Dekker

    Joined:
    Mar 16, 2013
    Posts:
    29,760
    Can you work through some of fhe example code Unity already provides??

    Tutorials and example code are great, but keep this in mind to maximize your success and minimize your frustration:

    How to do tutorials properly, two (2) simple steps to success:

    Step 1. Follow the tutorial and do every single step of the tutorial 100% precisely the way it is shown. Even the slightest deviation (even a single character!) generally ends in disaster. That's how software engineering works. Every step must be taken, every single letter must be spelled, capitalized, punctuated and spaced (or not spaced) properly, literally NOTHING can be omitted or skipped.

    Fortunately this is the easiest part to get right: Be a robot. Don't make any mistakes.
    BE PERFECT IN EVERYTHING YOU DO HERE!!

    If you get any errors, learn how to read the error code and fix your error. Google is your friend here. Do NOT continue until you fix your error. Your error will probably be somewhere near the parenthesis numbers (line and character position) in the file. It is almost CERTAINLY your typo causing the error, so look again and fix it.

    Step 2. Go back and work through every part of the tutorial again, and this time explain it to your doggie. See how I am doing that in my avatar picture? If you have no dog, explain it to your house plant. If you are unable to explain any part of it, STOP. DO NOT PROCEED. Now go learn how that part works. Read the documentation on the functions involved. Go back to the tutorial and try to figure out WHY they did that. This is the part that takes a LOT of time when you are new. It might take days or weeks to work through a single 5-minute tutorial. Stick with it. You will learn.

    Step 2 is the part everybody seems to miss. Without Step 2 you are simply a code-typing monkey and outside of the specific tutorial you did, you will be completely lost. If you want to learn, you MUST do Step 2.

    Of course, all this presupposes no errors in the tutorial. For certain tutorial makers (like Unity, Brackeys, Imphenzia, Sebastian Lague) this is usually the case. For some other less-well-known content creators, this is less true. Read the comments on the video: did anyone have issues like you did? If there's an error, you will NEVER be the first guy to find it.

    Beyond that, Step 3, 4, 5 and 6 become easy because you already understand!
     
  5. kdgalla

    kdgalla

    Joined:
    Mar 15, 2013
    Posts:
    3,716
    Here is the manual page:
    https://docs.unity3d.com/ScriptReference/ParticleSystem.html

    First, you'd need to just play with the particle effect in the inspector. Figure out which parameters that you'd want to change and what values. Then find the corresponding members in the API.

    Edit: also your IDE's auto-complete will be extremely helpful here.
     
    Last edited: Sep 26, 2022
    Kurt-Dekker likes this.
  6. TomMarvoloRiddle204

    TomMarvoloRiddle204

    Joined:
    Dec 24, 2020
    Posts:
    46