Rebuild of the same scene

[Fitbie]

Hello. My question is very simple - let’s imagine that my game has several chapters. And let’s imagine that the same scene occurs in several chapters, but with slight changes (characters are different, the environment is slightly different, and so on).

Is it possible to just create a new scene, copy everything from the old one and change it? After all, technically the number of sprites and other resources will not change, the scene keeps references to them, right? Or would it be better to write a bunch of scripts that will check what stage of the game we are in and arrange elements of the game at each level load? These endless checks (in an open world game) may load the system, although you do not have to create new scenes

[Kurt-Dekker]

Additive scene loading is one possible solution.

You might have one scene that contains the main geometry of the room.

But then you might have another scene that contains the items for mode A, and another scene for mode B, and only one of those is additively loaded.

Another way is to just have specific control scripts on each object linked to the logic in your game state that will hide the candlestick once Ms Scarlet visits the ballroom.

The only issue would be baked lighting around the objects, but if you’re not doing lighting, no problem.

Details:

Right way for performance, divide scene?

I always favor breaking the scenes up and loading additively. reduces overall memory consumption lets multiple team members trample on each other less often ensures clean “reset” of all objects in a fresh loaded scene I’m working on a game now where we each have our own “content” level, the level we’re working on. the content scene has all the lighting baked in. Just press play and that level has one script that additively loads: music scene (just an audiosource on autoplay) the …

Right way for performance, divide scene?

Glad you asked… going this route definitely requires slightly-higher awareness of what scene is what. In no particular order, responding to you questions, When the game or level is over, I try to go to a fresh “end level” scene (not additively!) and clear everything else out (except overall ongoing game manager obviously, as a singleton) when the game gets paused I stop time and bring up a pause scene that sorts above all else, then unload it and restart the time. OR if you quit, I just …

Problem with canvas & UI prefabs

There are underlying reasons this happened and you can track it down by examining everything about each scene’s canvas setup and scaling that are different from the other. But keep in mind it might not be super-easily to address it in the general case, especially if you start partitioning your UI into chunks. An alternate workflow is to put chunks of your UI into separate scenes and then load those scenes additively. For instance you might have the following scenes, all loaded additively: c…

A multi-scene loader thingy:

Unity additive scene loading example - Pastebin.com

My typical Scene Loader:

https://gist.github.com/kurtdekker/862da3bc22ee13aff61a7606ece6fdd3

Other notes on additive scene loading:

Removing Duplicates on Load Scene

Why not remove the player from ALL your scenes, put him in his own separate scene, then load scenes additively? That way you don’t even need a Player prefab at all, just have a Player scene and load him additively. I tend to break up all my games into partial scenes, all additively loaded by the game manager: UI player enemy manager other stuff? and then finally I load the content scene. The first batch of screens all have scripts that do nothing until the content scene appears and they kn…

Timing of scene loading:

Function called from preloader script doesn't change parent of gameobject (in the second scene)

If line 8 relies on something being present from the scene load in line 7 (in GameController), it won't be: scenes are loaded at the end of frame and would never be available until the next frame, at the very earliest. You can trivially make void Start() into a coroutine by declaring it to return an IEnumerator, then put a while loop (with a yield return null; in it!!!) to wait until the scene loads and you find the "Trains" object, then proceed. Obviously you would need to interlock other t…

Also, if something exists only in one scene, DO NOT MAKE A PREFAB out of it. It’s a waste of time and needlessly splits your work between two files, the prefab and the scene, leading to many possible errors and edge cases.

Two similar examples of checking if everything is ready to go:

Daily Events and content changes

I think multiple scenes are definitely worth chasing. You need to make everything in your game tolerant of perhaps not having stuff ready at the same time, and you have to track things that you need only ONE of: Camera (Main) Audio Listener EventSystem I like to put all of those in the BASE scene if possible, then load other scenes like UI and pause and the level itself, etc. You have to sort of figure out which works for you. You can actually make Start() be a coroutine too, such as lookin…

Unit scripts calling Start function before other scripts

Indeed. I like to use a lot of additively-loaded scenes, so I tend to code my individual item controllers (including the player controller) so that they are happy to wait around if other stuff isn’t ready yet. You can make Start() into a coroutine, which is a super-easy way to get this kind of lazy-sloppy startup that is extremely tolerant of late loading and uneven loading. // typical base framework for all entities bool ready; IEnumerator Start () { // don't proceed unt…

[Fitbie]

@Kurt-Dekker

Additive scene loading is one possible solution.

You might have one scene that contains the main geometry of the room.

Kurt, can I ask one more little offtop question. In my game, there’s a point where you have to put a “white noise” effect on a 2D character, as if he’s in a disturbance. I’ve been working in Unity for a long time, but I have no idea how to do it at all (I don’t want to draw 50 frames of animation with noise again), is it possible to put white noise animation over the character and have it rendered only on the character sorting layer, not around it?

[Kurt-Dekker]

@Fitbie

there’s a point where you have to put a “white noise” effect on a 2D character, as if he’s in a disturbance.

Here are a random collection of different ideas to play with:

• use a separate noise texture and a shader that blends the two textures together, perhaps as a percent so you can bring the effect on gradually and then take it back out smoothly

• write a pre-processing editor script that makes the noisy textures out of your source clean images and saves them

• programmatically read the texture and modify it at runtime to add the noise

• shine a light projector only on the character (using layers) that has a dappled light cookie on it