Ajout du getter pour l'atténuation des matériaux
Merge branch 'master' of https://github.com/BroTeam/TIPE-project.git
Merge branch 'master' of https://github.com/BroTeam/TIPE-project.git
Merge branch 'master' of https://github.com/BroTeam/TIPE-project.git
Merge branch 'master' of https://github.com/BroTeam/TIPE-project.git