public void takeTool(Tool tool, Citizen citizen)
    {
        if (toolsInventory.nbElementsTotal(tool) < toolsInventory.getLimit(tool) && citizen.toolsToTransport.nbElementsTotal(tool) > 0)
        {
            citizen.toolsToTransport.remove(tool);
            toolsInventory.add(tool);
        }
        askSupplyToConstruct();

        if (enoughToolsToBuild)
        {
            needTools = false;
        }
        if (enoughConstructToBuild)
        {
            needRessources = false;
        }
    }
    IEnumerator create(Tool tool, Building building)
    {
        isCraftingTool = true;
        for (int i = 0; i < tool.numberRessourcesNeeded; i++)
        {
            building.GetComponent <RessourceInventory>().remove(tool.ressourceNeeded);
        }
        ToolInventory toolInventoryBuilding = building.GetComponent <ToolInventory>();

        toolInventoryBuilding.wood.text = (int.Parse(toolInventoryBuilding.wood.text) - toolInventoryBuilding.activeTool.numberRessourcesNeeded).ToString();
        yield return(new WaitForSeconds(5.0f));

        toolInventoryBuilding.addTool();
        toolInventoryBuilding.add(tool);
        toolInventoryBuilding.toolCount.text = (int.Parse(toolInventoryBuilding.toolCount.text) + 1).ToString();
        //toolInventoryBuilding.isCrafted();
        //yield return new WaitForSeconds(1.0f);
        isCraftingTool = false;
    }