Token Mill V2

EVM token launcher from LFJ

Bonding Curve

Token Mill V2 bonding curve is the combination of 2 Uni-V3 style pricing curves, called pool A and B in the code. Pool A will be in effect until 80% of the total supply is minted, and pool B for the rest, mimicking a graduation event. Those pools use two different virtual liquidity amounts, that will change the pricing dynamic when switching from one to the other.

Fees can be different on the two sides of the curve.

King of the Mill

Token Mill V2 redirects swap fees to a fee pool, that will be used for an aidrop program called King of the Mill (KotM). Every period, fees accumulated will be airdropped to a randomly selected set of holders of the winning token (selected based on market cap and volume).

Contracts

Factory

Creates token and manages protocol and KotM fees.

Token creation allows for an initial buy based on amountQuoteIn:

function createMarket(
        string calldata name,
        string calldata symbol,
        address quoteToken,
        address feeRecipient,
        uint256 amountQuoteIn,
        uint256 minAmountBaseOut
    ) external payable returns (address token, address market, uint256 amountBaseOut)

To get the market address from a token:

function getMarketOf(address token) external view returns (address)

Market

Get quotes using getDeltaAmounts:

function getDeltaAmounts(bool zeroForOne, int256 deltaAmount, uint256 sqrtRatioLimitX96)
        external
        view
        returns (int256 amount0, int256 amount1)

Buy and sell tokens using swap:

function swap(address to, bool zeroForOne, int256 deltaAmount, uint256 sqrtRatioLimitX96)
        external
        returns (int256 amount0, int256 amount1)

Swaps rely on the zeroForOne and deltaAmount parameters.

• If zeroForOne is true, the input is token0 and the output is token1 ("sell")
• If zeroForOne is false, the input is token1 and the output is token0 ("buy")
• If deltaAmount is positive, it's an amount in
• If deltaAmount is negative, it's an amount out
• The positive amount returned must be sent to the contract prior to calling the swap function
• The negative amount returned will be sent to the recipient after the swap

If not used, sqrtRatioLimitX96 can be set to 2^127 - 1 (max price) when buying and market.getSqrtRatiosBounds().0 (min price, also called sqrtRatioAX96) when selling.

The swap function is meant to be used by a router that will properly handle token transfers and check slippage.

Token

Regular ERC20 token with its supply minted on market creation.