// Adds a tree on top of stack if certain criteria are met
void AddTree(CellStack cellStack)
{
if (cellStack.Count() > terrain.waterLevel && (cellStack.Peek() == CellType.Grass || cellStack.Peek() == CellType.Dirt))
{
Vector2Int offset = cellStack.indexWithinChunk;
Vector3 treePos = transform.position + new Vector3(offset.x * HexMetrics.innerRadius * 2 + offset.y % 2 * HexMetrics.innerRadius,
transform.localPosition.y + HexMetrics.height * cellStack.Count(),
offset.y * HexMetrics.outerRadius * 1.5f);
// Randomly rotate the tree so it looks less uniform
float rotation = UnityEngine.Random.Range(0, 359);
Vector3 treeRot = new Vector3(0, rotation, 0);
TerrainObject tree = GameObject.Instantiate(treePrefab);
tree.Init(cellStack.coordinates, offset);
tree.transform.SetParent(transform);
tree.transform.position = treePos;
tree.transform.rotation = Quaternion.Euler(treeRot);
terrainObjects[offset.x, offset.y] = tree;
}
}