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Question by thinmanroad · Jan 13, 2018 at 03:56 PM · uigamecollider2dpanelontriggerenter2d

Problem counting with OnTriggerEnter2D (Conway's Game of Life)

Hi guys. I'm trying (as a challenge) to make Conway's Game of Life. I have all the logic already coded but I'm facing a problem with counting the adjacent "cells". I won't post the entire code because I think it's not relevant to the problem, even if I comment everything it still doesn't work as it should. I'm using a Canvas with panels as the cells, and checking with OnTriggerEnter2D the adjacent cells' state. Every cell has a "isAlive" bool and a "aliveNeighbours" int. Problem: the aliveNeighbours is counting ALL the alive cells in the grid, not just the ones "colliding" with them. If I set the top left cell to alive and the rest are dead, all the dead ones (even the bottom right) have 1 aliveNeighbours. The only thing that I thought could be happening is that the collider is connecting all of them? I mean, are them all adjacent "by extension"?. I hope someone can help me. This is the relevant code:

 public bool isAlive;
 public int aliveNeighbours = 0;
 Cell thisCell;
 
 void Start(){
     thisCell = gameObject.GetComponent<Cell>();
 }
 void OnTriggerEnter2D(Collider other){
     if(other.gameObject.GetComponent<Cell>().isAlive){
         thisCell.aliveNeighbours++;
     }
 
 }

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