@startuml
class Environment {
    - {static} instance : Environment
    - blockRegistry : Dictionary<string, Block>
    + onBlockAddedEvent : UnityEvent<Block>
    + onBlockRemovedEvent : UnityEvent<Block>
    + onChangeEvent : UnityEvent
    + {static} getInstance() : Environment
    + getBlockRegistry() : Dictionary<String, Block>
    - Awake() : void
    + addBlock(block:Block, existingUUID:string) : void
    + removeBlock(uuid:string) : void
    + applyChanges() : void
    + completeDestroyBlock(block:Block) : void
    + getBlock(uuid:string) : Block
    + clearEnvironment() : void
}
MonoBehaviour <|-- Environment
@enduml