57 lines
1.7 KiB
Solidity
57 lines
1.7 KiB
Solidity
/*
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Copyright 2021 DODO ZOO.
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SPDX-License-Identifier: Apache-2.0
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*/
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pragma solidity 0.6.9;
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import {ERC1155} from "../external/ERC1155/ERC1155.sol";
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import {Strings} from "../external/utils/Strings.sol";
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import {InitializableOwnable} from "../lib/InitializableOwnable.sol";
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contract DODONFT1155 is ERC1155, InitializableOwnable {
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using Strings for uint256;
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uint256 public _CUR_TOKENID_;
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string internal _baseUri = "";
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mapping (uint256 => string) private _tokenURIs;
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// ============ Event =============
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event DODONFTMint(address creator, uint256 tokenId, uint256 amount);
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event DODONFTBurn(address account, uint256 tokenId, uint256 amount);
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function mint(string calldata uri, uint256 amount) external {
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_mint(msg.sender, _CUR_TOKENID_, amount, "");
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_setTokenURI(_CUR_TOKENID_, uri);
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emit DODONFTMint(msg.sender, _CUR_TOKENID_, amount);
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_CUR_TOKENID_ = _CUR_TOKENID_ + 1;
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}
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function burn(address account, uint256 tokenId, uint256 amount) external onlyOwner {
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require(tokenId < _CUR_TOKENID_, "TOKENID_INVALID");
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_burn(account, tokenId, amount);
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emit DODONFTBurn(account, tokenId, amount);
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}
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function uri(uint256 tokenId) public view override returns (string memory) {
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string memory _tokenURI = _tokenURIs[tokenId];
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string memory base = _baseUri;
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if (bytes(base).length == 0) {
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return _tokenURI;
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}
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if (bytes(_tokenURI).length > 0) {
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return string(abi.encodePacked(base, _tokenURI));
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}
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return super.uri(tokenId);
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}
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function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal {
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_tokenURIs[tokenId] = _tokenURI;
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}
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} |