public struct SlotRect
    {
        public Vector2 bottomLeft;
        public Vector2 topRight;

        public SlotRect(Vector2 bl, Vector2 tr)
        {
            bottomLeft = bl;
            topRight = tr;
        }

        public bool Contains(Vector2 point)
        {
            return point.x >= bottomLeft.x && point.x <= topRight.x &&
                   point.y >= bottomLeft.y && point.y <= topRight.y;
        }
    }

    public int nbSlotsX;
    public int nbSlotsY;
    public float totalSizeX;
    public float totalSizeY;

    public float slotSizeX;
    public float slotSizeY;
    private SlotRect[,] slotGrid;

    private void NoMoellonageGrid()
    {
        slotGrid = new SlotRect[nbSlotsX, nbSlotsY];
        float centerX = totalSizeX / 2f;
        float centerY = totalSizeY / 2f;

        for (int x = 0; x < nbSlotsX; x++)
        {
            for (int y = 0; y < nbSlotsY; y++)
            {
                float startX = -centerX + x * slotSizeX;
                float endX = startX + slotSizeX;

                float startY = -centerY + y * slotSizeY;
                float endY = startY + slotSizeY;

                slotGrid[x, y] = new SlotRect(new Vector2(startX, startY), new Vector2(endX, endY));
            }
        }
    }

    public bool TryGetSlotIndex(Vector2 localPoint, out Vector2Int slotIndex)
    {
        for (int x = 0; x < nbSlotsX; x++)
        {
            for (int y = 0; y < nbSlotsY; y++)
            {
                if (slotGrid[x, y].Contains(localPoint))
                {
                    slotIndex = new Vector2Int(x, y);
                    return true;
                }
            }
        }

        slotIndex = new Vector2Int(-1, -1);
        return false;
    }

// et t'use genre Grid.TryGetSlotIndex(); avec RectTransformUtility.ScreenPointToLocalPointInRectangle (comme sur la Doc oui oui Kappa ) pour récup' la pos' du cursor, puis out le slot