CryptoAgents: a smart contract art collection Smart contract art like @cryptopunksnfts & @autoglyphs is the holy grail of crypto art CryptoAgents follows the same principle - with every pixel stored fully on @ethereum Let's dive into how CryptoAgents works 🧵

1/ VISUAL ASSET REGISTRATION All visual assets are registered to the CryptoAgents Solidity smart contract first, allowing us to compose the 10,000 agents. The 3 main functions: - addDNA(): Alien, Kong, etc - addItem(): Eyes, Head, etc - setPalettes(): Popsicl, Kindness, etc

2/ ONCHAIN ART RENDERING This function works as follows: - Gets position data for each trait (DNA, head, etc) - Maps each trait to its color palette - Generates a 24×24 pixel map (2304 bytes) where each pixel has RGBA values - Combines all traits into a single pixel array

The interesting part is how it processes trait data: - Each trait has positions that reference palette indices - It processes these in groups of 5 bytes (x, y, r, g, b) - It assembles these into a single 24×24 RGBA pixel buffer

3/ SVG GENERATION Here's how we implemented a function that returns each CryptoAgent as an SVG: - Gets the pixel data from the art rendering function - Loops through each pixel - For non-transparent pixels (alpha > 0), creates an SVG rectangle with the color - Combines all rectangles into a complete SVG - Returns a data URI with the SVG content The SVG uses rectangles of size 1×1 for each pixel, positioned at the correct x,y coordinates.

4/ ASSEMBLY OPTIMIZATION - We use assembly for memory manipulation to save gas - We also use a custom format to encode ERG values efficiently