Contract con_crafter_v6

  

    

      

        

            
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I = importlib
          

            
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random.seed()
          

            
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nft_collection_contract = Variable()
          

            
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owner = Variable()
          

            
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craftable_things = Hash(default_value=0)
          

            
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amount_crafted = Hash(default_value=0)
          

            
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currency_contract = Variable()
          

            
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@construct
          

            
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def seed():
          

            
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    nft_collection_contract.set("con_lamden_realm_v2")
          

            
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    currency_contract.set("con_trt")
          

            
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    owner.set(ctx.caller)
          

            
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@export
          

            
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def craft(item_type: str):
          

            
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    assert craftable_things[item_type] != 0, "This item type is not craftable"   
          

            
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    cost = craftable_things[item_type]["cost"]
          

            
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    I.import_module(currency_contract.get()).transfer_from(amount=cost, to="Burned", main_account=ctx.caller)
          

            
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    attributes = craftable_things[item_type]["attributes"]
          

            
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    final_metadata = {}
          

            
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    for attribute in attributes:
          

            
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        if isinstance(attributes[attribute], dict):
          

            
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            # take into account the preferred attribute and weight it based on if the min or max is preferred without using uniform
          

            
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            min_value = attributes[attribute]["min"]
          

            
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            max_value = attributes[attribute]["max"]
          

            
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            preferred = attributes[attribute]["preferred"]
          

            
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            # generate a random int between min and max
          

            
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            # preferred is what is better for the attribute and has a lower chance of being generated
          

            
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            # so we weight the random number based on the preferred using linear interpolation
          

            
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            if preferred == "min":
          

            
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                weight = (max_value - min_value) ** 2
          

            
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            else:
          

            
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                weight = (min_value - max_value) ** 2
          

            
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            samples = 100
          

            
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            total = 0
          

            
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            for i in range(samples):
          

            
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                sample = random.randint(min_value, max_value)
          

            
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                if preferred == "min":
          

            
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                    weight_value = (sample - min_value) / weight
          

            
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                else:
          

            
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                    weight_value = (max_value - sample) / weight
          

            
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                total += sample * weight_value
          

            
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            final_metadata[attribute] = round(total / samples)
          

            
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        elif isinstance(attributes[attribute], list):
          

            
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            final_metadata[attribute] = random.choice(attributes[attribute])
          

            
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    image = random.choice(craftable_things[item_type]["images"])
          

            
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    final_metadata["type"] = item_type
          

            
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    amount_crafted[item_type] += 1
          

            
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    # Name will be the item type, but uppercase first letter + the amount crafted
          

            
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    name = item_type.capitalize() + " " + str(amount_crafted[item_type])
          

            
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    I.import_module(nft_collection_contract.get()).mint_nft(name=name, description="Item crafted by {}".format(ctx.caller), ipfs_image_url=image, metadata=final_metadata, amount=1)
          

            
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    I.import_module(nft_collection_contract.get()).transfer(amount=1, to=ctx.caller, name=name)
          

            
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@export
          

            
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def set_nft_collection_contract(contract: str):
          

            
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    assert ctx.caller == owner.get(), "Only the owner can set the NFT collection contract"
          

            
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    nft_collection_contract.set(contract)
          

            
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@export
          

            
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def modify_craftable_things(item_type: str, cost: float, attributes: dict, images: list):
          

            
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    assert ctx.caller == owner.get(), "Only the owner can modify the craftable things"
          

            
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    # ex item_type = "weapon"
          

            
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    # ex attributes = {
          

            
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    # "cooldown": {"min": 0.1, "max": 2, "preferred": "min"}, 
          

            
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    # "damage" : {"min": 1, "max": 80, "preferred": "max"}, 
          

            
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    # "effect" : ["cosmicball", "natureball", "fireball"],
          

            
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    # "max_distance" : {"min": 100, "max": 1000, "preferred": "max"}
          

            
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    # }
          

            
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    # ex images = ["https://nftstorage.link/ipfs/bafybeihpmoirvpgnt7m6lytm5xarhxncbugorg43pvmvgf5o7z3vegelbi/file", "https://nftstorage.link/ipfs/bafybeiaputppri6gm676y75kjtgd2we4sbm2dl2rmcshafc5shmfpgekmy/file", "https://nftstorage.link/ipfs/bafybeiez5v3zs2fcctzytchlwcgryu2k342sz2txypwunzgb7jdqtykwx4/file"]
          

            
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    craftable_things[item_type] = {"attributes": attributes, "cost": cost, "images": images}
          
      
    
  
  

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