void FixedUpdate()
{
Vector2 tileInd = terrain.tileFromPos(transform.localPosition);
try{
curTile = engine.mapgen.tiles[(int)tileInd.x,(int)tileInd.y];
}catch{
curTile = null;
}
if (curTile != null){
if (curTile.isOnFire()){
health -= curTile.heatIndex/10.0f;
}
}
//check if the character has died
if (health < 0)
{
killSquirrel();
}
}