DUSKLINGS
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Smart contracts in Rust

    
The Hatchery

    
Write a Dusk Forge smart contract in Rust over five lessons: state, events, calls between contracts, block height and approvals.

    

      

        
Lesson 1: The Hatchery

        
    
          
  1. Dusk falls
    2. 
          
  2. Contracts
    3. 
          
  3. Constants and integers
    4. 
          
  4. Math
    5. 
          
  5. Structs
    6. 
          
  6. Vectors
    7. 
          
  7. Functions
    8. 
          
  8. Making a Duskling
    9. 
          
  9. Private functions
    10. 
          
  10. Return values
    11. 
          
  11. Mixing the seed
    12. 
          
  12. Putting it together
    13. 
          
  13. Event types
    14. 
          
  14. Emitting events
    15. 
          
  15. Hatch your Duskling
    16. 
        

      

      

        
Lesson 2: Keepers

        
    
          
  1. Every Duskling needs a keeper
    2. 
          
  2. Reading state
    3. 
          
  3. Maybe there, maybe not
    4. 
          
  4. Who's calling?
    5. 
          
  5. Recording the keeper
    6. 
          
  6. Whose is it?
    7. 
          
  7. Counting with iterators
    8. 
          
  8. One hatch per keeper
    9. 
          
  9. Keepers of the harbor
    10. 
        

      

      

        
Lesson 3: Moth hunt

        
    
          
  1. Something to eat
    2. 
          
  2. Contract addresses
    3. 
          
  3. Calling another contract
    4. 
          
  4. Mixing DNA
    5. 
          
  5. Moth-born
    6. 
          
  6. Only your own Duskling
    7. 
          
  7. The feast
    8. 
          
  8. A second event type
    9. 
          
  9. Telling the world
    10. 
          
  10. The moth feast
    11. 
        

      

      

        
Lesson 4: Night battles

        
    
          
  1. The Night Arena
    2. 
          
  2. A place to rest
    3. 
          
  3. The chain's clock
    4. 
          
  4. Resting
    5. 
          
  5. Don't repeat yourself
    6. 
          
  6. Wins and losses
    7. 
          
  7. Rolling the dice (sort of)
    8. 
          
  8. Into the arena
    9. 
          
  9. Win or lose
    10. 
          
  10. Arena night
    11. 
        

      

      

        
Lesson 5: Trading

        
    
          
  1. Trading day
    2. 
          
  2. Handing it over
    3. 
          
  3. A receipt
    4. 
          
  4. Room for an approval
    5. 
          
  5. Approving a keeper
    6. 
          
  6. Collecting it
    7. 
          
  7. The stale approval
    8. 
          
  8. Trade day
    9. 
        

      

    

    
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