C# Maze implementation Needed urgently

I am trying to implement a maze game... Need help in doing that... Have attached the basic code in the zip file.. 1. I need the user stories.. i mean the completed RAD User Stories 2. Proper Commented code 3. NUnit Test - Every command and entity class shall have Nunit tests 4. Patterns such as singleton, command, Facade , Adapter and chain of responsibility should be used in the code 5. Sequence Diagram 6. Class diagrams( Enterprise Architecture Files) ## Deliverables **User Stories to Implement** * Buy/Sell Item (requiring the exchange of money and consideration of weight restrictions for the player) * Encounter Hostile NPC * * a "combat state" is triggered when players are co-located with hostiles * the NPC has the first attack (this is simply a message saying that the "NPC attacks you but has missed" rather than an implementation of the entire combat subsystem) * the player now has an "attack NPC" command at their disposal * * attack NPC informs the player that their attack was successful and the NPC is now dead (if the NPC is hostile). If a weapon is being wielded then it should also be displayed. For example You have attacked (name of the hostile) with a dagger (Name of the hostile) is now dead * * or it informs the player that they cannot attack friendly characters * Get / drop item (consideration of weight restrictions for the player) * Unlock door (requires getting a key) * List Inventory (give a list of all items held by your character) * Look around location (describe what you see and where the exits are) * Talk to character * Flee location * Ask character to join/leave party