Question Bobbing water like in Forager game

Hi. All. Quick questions. Does anybody have any tips or know how to animate/create water like in forager?

Thanks

 

You could have two tiles: (1) a normal tile for most of the water, (2) an animated tile for those tiles where the water needs to bob up and down. The animated tile would just have a series of sprites that show water bobbing up and down.

See this video for a tutorial:

Note: the video is a little bit out of date: in later Unity versions, Tilemap Extras are a package available through Package Manager.

You could also try one of these alternative strategies discussed over here:
https://forum.unity.com/threads/runtime-access-to-unity-2d-tiles.1130446/#post-7264165
But the sprite animation is probably the simplest.

 

its just a sprite animation frame by frame drawn by hand

 

@rarac @Lo-renzo

Thank you both. I actually went that way before viewing this.

Mine looks like this. But all the water goes up and down the same time. Not like a rolling wave over the screen. Wonder how to approach this.



Should do rolling wave from one sidenof the screen.

 

They might apply an offset (using x position) to change the sprite index so when it animates it does so a bit differently as you go left to right.

 

@Lo-renzo

So making some changes to the Unity Tilemap Extras. Also If this gets resolved I am willing to share the code here!

Normal



CheckBox ( Random Start )That per Tile checks frame length and picks a starting frame.

Amazing. ( This I will use for Fires and Flags! )





Now to get the wave effect ( Wave CheckBox )

My Idea is to do the following Let say the the follwoing
Frame Count = 4 frames per animation. ( 0 to 3 in Code)
X position of all tiles example above

Each Flag on X axis
-2,-1,0,1,2,3

So now I have to go. Lets say always use x=0 as starting frame 0 ?
-2,-1,0,1,2,3
F2,F3,F0,F1,F2,F3

How the hell do I calculate that???

Pseudocode

totalframes = rule.m_AnimatedSprites.Length; ( example 4 ( 0 to 3 ) )
locationvar = location.x ; ( example 2 )

starttileindex = ??????? ( should be 2)

Example 2

totalframes = rule.m_AnimatedSprites.Length; ( example 4 ( 0 to 3 ) )
locationvar = location.x ; ( example 13 )

starttileindex = ??????? ( should be 1)

-2,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14
F2,F3,F0,F1,F2,F3,F0,F1,F2,F3,F0,F1,F2,F3,F0,F1,F2,F3

 

the ppl above already gave the solution, basically make a different tile where the animation starts at frame 2 instead of frame 1, etc

 

Please read my last post.

Using diff tiles is slow. Not really good development to do it that way.

I use rule tile ( 1 Tile with 6 frames in my screenshot) as you can See I can randomly choose a starting frame.
The Wave tile I need to calculate ?? Yeah
Each tile I will check the x to start on a diff frame. Thing is how to calculate position.x = 13? A new tile is created on x=8? Which frame to choose then

Rule Tile with Random Frame Start. See not doing a wave....

 

if you have 4 frames in the tile you should make 6 tiles to make it easier (t5 is duplicate of t3 and t6 is duplicate of t2)

then this is the position

Code (CSharp):

1.  
2. X =  -2    -1   0     1    2    3    4           5        6
3.      t3    t2   t1   t2   t3   t4   t3(t5)    t2(6)       t1
4.  

to get the tile number is the formula

Code (CSharp):

1. 1 + (x % 6)

 

Got it working. Grade School maths. Feel silly now

is C# just had to make own Formula

int Mod(int a, int n) => (a % n + n) % n;


Tilemap Rule Tile Working as Follow

Waves!!!! Beautiful waves. Will Post my Water here later.

 

Looking good.