> For the complete documentation index, see [llms.txt](https://fr0.gitbook.io/dragonraceai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fr0.gitbook.io/dragonraceai/about-us/game-mechanics/nft-converter-system.md).

# NFT Converter System

<figure><img src="/files/cJ1Tud38DxhqC78lalhZ" alt=""><figcaption><p>USE YOUR OWN NFT TO BE GAME RIDER</p></figcaption></figure>

In DragonRaceAI, a feature allows players to transform sprites into game riders or dragons and obtain corresponding rider NFTs through a specific conversion mechanism. Here is the detailed process of this functionality:

#### Conversion Mechanism

* **Sprite Collection:** Players need to collect 10 sprites as the base material for conversion.
* **Insertion into the Converter:** Players place these 10 sprites into a specific converter within the game.
* **Value Calculation:** The converter automatically calculates the total value of the 10 sprites, which fluctuates between Class 7 to Class 9.
* **Conversion Process:** Based on the calculated value, players can trigger the conversion process.
* **Obtaining Items:** The conversion results in two possibilities:
  * A 10% chance to obtain a dragon NFT.
  * A 90% chance to obtain a rider NFT.

#### Implementation Steps

* **Value Assessment Algorithm:** Develop an algorithm to assess the total value of the 10 sprites and determine the type of item obtained after conversion.
* **Randomness Algorithm:** Use a fair randomness algorithm to decide whether players receive a dragon NFT or a rider NFT.
* **NFT Minting:** Based on the conversion results, automatically mint the corresponding dragon or rider NFT and send it to the player's blockchain wallet address.
* **Transaction Records:** Record detailed information about each conversion in the system backend, including the value assessment of the sprites, conversion results, and the generated NFT.