CryptoDragonBall is a Play to Earn NFT RPG developed on the Binance Smart Chain platform.
The game revolves around the acquisition of legendary dragon balls and powerful Characters to training them. Players may take part in arena using their assets to earn DBALL tokens. Assets are player owned NFTs minted in the ERC-721 standard which may be traded on the proprietary marketplace.
Our vision is for players to take control of their digital assets, Play to Earn, and increase implementation of blockchain technology in their daily life.
Our mission is to provide a fun and profitable experience for our gamers, to create a healthy and excited community around blockchain gaming, and build an ecosystem of Play-To-Earn systems to meet the needs of all gamers from around the world.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
BEP20._approve(address,address,uint256).owner (#1111) shadows:
- Ownable.owner() (#784-786) (function)
Rename the local variables that shadow another component.
Additional information: link
DrakeBall.setPresaleAdrress(address)._presaleAdrress (#1194) lacks a zero-check on :
- presaleAdrress = _presaleAdrress (#1195)
Check that the address is not zero.
Additional information: link
Reentrancy in DrakeBall.constructor() (#1156-1168):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1161)
State variables written after the call(s):
- _approve(address(this),address(uniswapV2Router),~ uint256(0)) (#1164)
- _allowances[owner][spender] = amount (#1118)
- _mint(_msgSender(),maxSupply) (#1165)
- _balances[account] = _balances[account].add(amount) (#1074)
- _mint(_msgSender(),maxSupply) (#1165)
- _totalSupply = _totalSupply.add(amount) (#1073)
- farmAdrress = owner() (#1166)
- presaleAdrress = owner() (#1167)
- uniswapV2Router = _uniswapV2Router (#1163)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in DrakeBall.constructor() (#1156-1168):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1161)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1119)
- _approve(address(this),address(uniswapV2Router),~ uint256(0)) (#1164)
- Transfer(address(0),account,amount) (#1075)
- _mint(_msgSender(),maxSupply) (#1165)
Apply the check-effects-interactions pattern.
Additional information: link
Address._verifyCallResult(bool,bytes,string) (#392-409) uses assembly
- INLINE ASM (#401-404)
Do not use evm assembly.
Additional information: link
Different versions of Solidity is used:
- Version used: ['0.6.12', '>=0.4.0', '>=0.5.0', '>=0.6.0<0.8.0', '>=0.6.2', '>=0.6.2<0.8.0']
- >=0.5.0 (#5)
- >=0.5.0 (#25)
- >=0.6.2 (#80)
- >=0.6.2 (#178)
- >=0.6.2<0.8.0 (#224)
- >=0.6.0<0.8.0 (#414)
- >=0.4.0 (#629)
- >=0.6.0<0.8.0 (#728)
- >=0.6.0<0.8.0 (#753)
- >=0.4.0 (#821)
- 0.6.12 (#1140)
Use one Solidity version.
Additional information: link
SafeMath.trySub(uint256,uint256) (#446-449) is never used and should be removed
Remove unused functions.
Additional information: link
Pragma version>=0.4.0 (#821) allows old versions
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.
Additional information: link
Low level call in Address.functionDelegateCall(address,bytes,string) (#384-390):
- (success,returndata) = target.delegatecall(data) (#388)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Parameter DrakeBall.setPresaleAdrress(address)._presaleAdrress (#1194) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (#746)" inContext (#740-749)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#89) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#90)
Prevent variables from having similar names.
Additional information: link
DrakeBall.tradingFee (#1149) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
mint(address,uint256) should be declared external:
- DrakeBall.mint(address,uint256) (#1185-1187)
Use the external attribute for functions never called from the contract.
Additional information: link
Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.
Token is deployed only at one blockchain
Token has only one trading pair
Unable to find PancakeSwap trading pair to compute liquidity.
Unable to find PancakeSwap trading pair to compute volume.
Unable to find PancakeSwap trading pair to compute number of swaps.
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find token on CoinMarketCap
Additional information: link
Unable to find token/project description on the website or on BscScan, CoinMarketCap
Unable to find token contract audit
Unable to verify token contract address on the website
Unable to find audit link on the website
Unable to find whitepaper link on the website
Unable to find token on CoinHunt
Additional information: link
Unable to find code repository for the project
Young tokens have high risks of scam / price dump / death
Token has no active CoinMarketCap listing / rank
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Token has relatively low CoinGecko rank
Telegram account link seems to be invalid
Twitter account link seems to be invalid
Unable to find Youtube account