DeFi Integration in Korean Gaming Platforms

// Cross-Game Liquidity Pool Implementation
contract CrossGameLiquidityPool {
struct GameTokenPair {
address gameAToken;
address gameBToken;
uint256 reserveA;
uint256 reserveB;
uint256 totalLiquidity;
uint256 miningRewardRate;
}
mapping(bytes32 => GameTokenPair) public liquidityPools;
mapping(address => mapping(bytes32 => uint256)) public liquidityProvided;
mapping(address => mapping(bytes32 => uint256)) public miningRewards;
function addLiquidity(
bytes32 poolId,
uint256 amountA,
uint256 amountB
) external returns (uint256 liquidity) {
GameTokenPair storage pool = liquidityPools[poolId];
// Calculate optimal liquidity provision
liquidity = calculateLiquidity(poolId, amountA, amountB);
// Transfer tokens to pool
IERC20(pool.gameAToken).transferFrom(msg.sender, address(this), amountA);
IERC20(pool.gameBToken).transferFrom(msg.sender, address(this), amountB);
// Update pool reserves
pool.reserveA += amountA;
pool.reserveB += amountB;
pool.totalLiquidity += liquidity;
// Track user liquidity for mining rewards
liquidityProvided[msg.sender][poolId] += liquidity;
// Start mining rewards
_updateMiningRewards(msg.sender, poolId);
emit LiquidityAdded(msg.sender, poolId, amountA, amountB, liquidity);
}
function claimMiningRewards(bytes32 poolId) external {
uint256 rewards = calculateMiningRewards(msg.sender, poolId);
require(rewards > 0, "No rewards available");
miningRewards[msg.sender][poolId] = 0;
// Distribute mining rewards (governance tokens + game tokens)
_distributeMiningRewards(msg.sender, poolId, rewards);
emit MiningRewardsClaimed(msg.sender, poolId, rewards);
}
}

// Impermanent Loss Protection
contract ImpermanentLossProtection {
struct ProtectionPolicy {
uint256 protectionLevel; // 0-100%
uint256 minimumLockPeriod;
uint256 protectionFee;
bool dynamicRebalancing;
}
mapping(address => mapping(bytes32 => ProtectionPolicy)) public protectionPolicies;
mapping(address => mapping(bytes32 => uint256)) public protectionClaims;
function enableProtection(
bytes32 poolId,
uint256 protectionLevel,
uint256 lockPeriod
) external payable {
require(protectionLevel <= 100, "Invalid protection level");
require(msg.value >= calculateProtectionFee(poolId, protectionLevel), "Insufficient fee");
protectionPolicies[msg.sender][poolId] = ProtectionPolicy({
protectionLevel: protectionLevel,
minimumLockPeriod: lockPeriod,
protectionFee: msg.value,
dynamicRebalancing: true
});
emit ProtectionEnabled(msg.sender, poolId, protectionLevel);
}
function claimProtection(bytes32 poolId) external {
uint256 impermanentLoss = calculateImpermanentLoss(msg.sender, poolId);
uint256 protection = protectionPolicies[msg.sender][poolId].protectionLevel;
uint256 compensation = (impermanentLoss * protection) / 100;
if (compensation > 0) {
protectionClaims[msg.sender][poolId] += compensation;
_payProtectionClaim(msg.sender, compensation);
}
}
}

// In-Game AMM Integration
contract GameIntegratedAMM {
struct TradingPool {
address tokenA;
address tokenB;
uint256 reserveA;
uint256 reserveB;
uint256 fee; // in basis points
uint256 gameBonus; // bonus for in-game trades
}
mapping(bytes32 => TradingPool) public tradingPools;
mapping(address => bool) public authorizedGames;
mapping(address => uint256) public playerTradingLevel;
modifier onlyAuthorizedGame() {
require(authorizedGames[msg.sender], "Unauthorized game contract");
_;
}
function executeInGameTrade(
bytes32 poolId,
address player,
address tokenIn,
uint256 amountIn,
uint256 minAmountOut
) external onlyAuthorizedGame returns (uint256 amountOut) {
TradingPool storage pool = tradingPools[poolId];
// Calculate trade amount with game bonuses
amountOut = calculateTradeAmount(poolId, tokenIn, amountIn);
uint256 gameBonus = calculateGameBonus(player, amountOut);
amountOut += gameBonus;
require(amountOut >= minAmountOut, "Insufficient output amount");
// Execute trade
if (tokenIn == pool.tokenA) {
pool.reserveA += amountIn;
pool.reserveB -= amountOut;
IERC20(pool.tokenB).transfer(player, amountOut);
} else {
pool.reserveB += amountIn;
pool.reserveA -= amountOut;
IERC20(pool.tokenA).transfer(player, amountOut);
}
// Update player trading level
playerTradingLevel[player] += 1;
emit InGameTradeExecuted(player, poolId, tokenIn, amountIn, amountOut);
}
function calculateGameBonus(address player, uint256 baseAmount)
internal view returns (uint256) {
uint256 level = playerTradingLevel[player];
uint256 bonusPercentage = level / 10; // 1% bonus per 10 trades
return (baseAmount * bonusPercentage) / 100;
}
}

// Cross-Game Asset Bridge AMM
contract CrossGameBridgeAMM {
struct BridgePool {
mapping(address => uint256) gameTokenReserves;
address[] supportedTokens;
uint256 bridgeFee;
uint256 totalLiquidity;
}
mapping(bytes32 => BridgePool) public bridgePools;
mapping(address => mapping(bytes32 => uint256)) public liquidityShares;
function bridgeAsset(
bytes32 poolId,
address sourceToken,
address targetToken,
uint256 amountIn,
uint256 minAmountOut
) external returns (uint256 amountOut) {
BridgePool storage pool = bridgePools[poolId];
require(pool.gameTokenReserves[sourceToken] > 0, "Source token not supported");
require(pool.gameTokenReserves[targetToken] > 0, "Target token not supported");
// Calculate bridge amount using constant product formula with adjustments
amountOut = calculateBridgeAmount(poolId, sourceToken, targetToken, amountIn);
require(amountOut >= minAmountOut, "Insufficient bridge output");
// Execute bridge
IERC20(sourceToken).transferFrom(msg.sender, address(this), amountIn);
IERC20(targetToken).transfer(msg.sender, amountOut);
// Update reserves
pool.gameTokenReserves[sourceToken] += amountIn;
pool.gameTokenReserves[targetToken] -= amountOut;
emit AssetBridged(msg.sender, poolId, sourceToken, targetToken, amountIn, amountOut);
}
function addBridgeLiquidity(
bytes32 poolId,
address[] calldata tokens,
uint256[] calldata amounts
) external returns (uint256 liquidity) {
require(tokens.length == amounts.length, "Array length mismatch");
BridgePool storage pool = bridgePools[poolId];
// Calculate liquidity provision
liquidity = calculateLiquidityAmount(poolId, tokens, amounts);
// Transfer tokens to pool
for (uint i = 0; i < tokens.length; i++) {
IERC20(tokens[i]).transferFrom(msg.sender, address(this), amounts[i]);
pool.gameTokenReserves[tokens[i]] += amounts[i];
}
// Update liquidity shares
liquidityShares[msg.sender][poolId] += liquidity;
pool.totalLiquidity += liquidity;
emit BridgeLiquidityAdded(msg.sender, poolId, tokens, amounts, liquidity);
}
}

// Virtual Land DeFi Protocol
contract VirtualLandDeFi {
struct LandAsset {
uint256 tokenId;
address owner;
uint256 developmentLevel;
uint256 rentalYield;
uint256 stakingRewards;
bool isRentable;
uint256 rentalPrice;
}
mapping(uint256 => LandAsset) public landAssets;
mapping(uint256 => address[]) public landTenants;
mapping(address => uint256[]) public userLandHoldings;
function stakeLandForYield(uint256 tokenId, uint256 stakingPeriod)
external {
require(landNFT.ownerOf(tokenId) == msg.sender, "Not land owner");
LandAsset storage land = landAssets[tokenId];
// Calculate staking rewards based on land development level
uint256 baseYield = calculateBaseYield(land.developmentLevel);
uint256 periodMultiplier = getPeriodMultiplier(stakingPeriod);
uint256 totalRewards = baseYield * periodMultiplier;
land.stakingRewards = totalRewards;
// Lock land for staking period
_lockLandAsset(tokenId, stakingPeriod);
emit LandStakedForYield(msg.sender, tokenId, totalRewards, stakingPeriod);
}
function enableLandRental(uint256 tokenId, uint256 rentalPrice)
external {
require(landNFT.ownerOf(tokenId) == msg.sender, "Not land owner");
LandAsset storage land = landAssets[tokenId];
land.isRentable = true;
land.rentalPrice = rentalPrice;
// Add to rental marketplace
_addToRentalMarketplace(tokenId);
emit LandListedForRental(tokenId, rentalPrice);
}
function rentLand(uint256 tokenId, uint256 rentalDuration)
external payable {
LandAsset storage land = landAssets[tokenId];
require(land.isRentable, "Land not available for rent");
require(msg.value >= land.rentalPrice * rentalDuration, "Insufficient rental payment");
// Grant rental rights
landTenants[tokenId].push(msg.sender);
_grantLandUsageRights(tokenId, msg.sender, rentalDuration);
// Pay land owner
payable(land.owner).transfer(msg.value);
emit LandRented(tokenId, msg.sender, rentalDuration, msg.value);
}
}