> For the complete documentation index, see [llms.txt](https://pangeaswap.gitbook.io/pangeaswap/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pangeaswap.gitbook.io/pangeaswap/en/developers/contracts/core-contracts/airdropdistributor.md). # AirdropDistributor {% embed url="" %} ## Overview For the protocol that lists tokens for the first time and creates a liquidity pool, an incentive mechanism is needed to induce many users to supply liquidity to the initial pool. To meet this demand, Pangea's pool has a built-in airdrop function. Anyone can freely add airdrop rewards to the pool to add incentives for liquidity supply. The types of airdrop rewards that can be added to the pool are **limited to the tokens constituting the pool**, and liquidity providers **receive airdrop rewards along with swap/flash loan fees**. If you deposit airdrop rewards in `AirdropDistributor`, the rewards will start to be distributed every Thursday at 09:00 (KST, UTC+9) and be **distributed linearly for one week**. During the reward distribution period, you can receive airdrop rewards in proportion to the amount of liquidity you supplied within the pool price range. ## Methods ### airdrop ```solidity function airdrop(address pool) external nonpayable; ``` Starts the distribution of the deposited airdrop rewards of the pool ### airdropPool ```solidity function airdropPool(uint256 idx) external view returns (address) ``` Returns the address of airdrop pool ### airdropPoolLength ```solidity function airdropPoolLength() external view returns (uint256) ``` Returns the number of the pools that have ever been deposited ### airdropSnapshot ```solidity function airdropSnapshot(address pool, uint256 idx) external view returns (struct IAirdropDistributorStruct.AirdropInfo snapshot) ``` Returns the record of the past airdrop distribution ### airdropSnapshotLength ```solidity function airdropSnapshotLength(address pool) external view returns (uint256 length) ``` Returns the number of the airdrop distribution of the pool ### depositKlay ```solidity function depositKlay(address pool) external payable ``` Deposits KLAY to the pool. Deposited KLAY will be distributed in the next epoch *transaction will revert if the asset in the pool is not WKLAY* ### depositToken ```solidity function depositToken(address pool, address token, uint128 amount) external nonpayable ``` Deposits token to the pool. Deposited token will be distributed in the next epoch *Approval (token.approve(airdropDistributor, amount)) must be performed before transaction* ### depositedAirdrop ```solidity function depositedAirdrop(address pool) external view returns (struct IAirdropDistributorStruct.AirdropInfo) ``` Current deposited airdrop reward information of the pool. amount0 & amount1 will be zero after the airdrop allocation ## Events ### Airdrop ```solidity event Airdrop(address indexed pool, address token0, address token1, uint128 amount0, uint128 amount1, uint256 startTime, uint256 period) ``` ### Deposit ```solidity event Deposit(address indexed pool, address token, uint256 amount, address depositor) ```