增加nft销毁proxy, 重构代码

build/contracts/BECoin.json

@@ -18080,12 +18080,12 @@
         }
       },
       "links": {},
-      "address": "0x95B4b95B8EbCcaBe87ad6D9D899257863ed01B50",
-      "transactionHash": "0xc2b0ed20a0465dbeeaabdd904fce2031c988505843df5d985d0a96e968fc7811"
+      "address": "0xAD5D74570Ad4ce647FB3a46426aA33bDAD614E55",
+      "transactionHash": "0xc713f2402f6c9ac9475f92fc06f817a40e58e682e72d12f91f97ed791efa740c"
     }
   },
   "schemaVersion": "3.4.4",
-  "updatedAt": "2022-01-12T06:52:32.682Z",
+  "updatedAt": "2022-01-12T09:15:06.378Z",
   "networkType": "ethereum",
   "devdoc": {
     "kind": "dev",

build/contracts/MarketPlace.json

@@ -30651,12 +30651,12 @@
         }
       },
       "links": {},
-      "address": "0x7a2039467d583d76F8378e493Df2C773581a2992",
-      "transactionHash": "0x35e8d2407d93658539882e004aa3a31b7c4c4e6c2c3baa83b7361fce67e01adf"
+      "address": "0x63D79b997de9B7a3A6E06E79b1DC017658d0DEeE",
+      "transactionHash": "0x383624bf213c52af24b13a8dd4261d1615aef48f29add06a9bce2c8fc529be5c"
     }
   },
   "schemaVersion": "3.4.4",
-  "updatedAt": "2022-01-12T06:52:32.666Z",
+  "updatedAt": "2022-01-12T09:15:06.361Z",
   "networkType": "ethereum",
   "devdoc": {
     "kind": "dev",

build/contracts/Migrations.json

@@ -2323,12 +2323,12 @@
     "1338": {
       "events": {},
       "links": {},
-      "address": "0xc2976420A0654F22566e70c576a7F550F2Ae5C6A",
-      "transactionHash": "0xa0c8cff94132f9bd0e386edc88811015987e96817f6ab22391bf074b46f994b5"
+      "address": "0x6078d24213D93A12d8e315b799c8c60E0EeE0490",
+      "transactionHash": "0xb242b36c10edf8000a85589ca4c8cbf7296a2f0feac00e4fff4524910b006aed"
     }
   },
   "schemaVersion": "3.4.4",
-  "updatedAt": "2022-01-12T06:52:32.700Z",
+  "updatedAt": "2022-01-12T09:15:06.407Z",
   "networkType": "ethereum",
   "devdoc": {
     "kind": "dev",

contracts/BEBase.sol

@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+import "@openzeppelin/contracts/access/Ownable.sol";
+import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
+import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
+import "@openzeppelin/contracts/access/AccessControlEnumerable.sol";
+
+abstract contract BEBase is ERC721, AccessControlEnumerable, ERC721Enumerable, Ownable {
+    mapping(address => bool) public approvalWhitelists;
+    mapping(uint256 => bool) public lockedTokens;
+    string private _baseTokenURI;
+    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
+    bytes32 public constant BURN_ROLE = keccak256("BURN_ROLE");
+
+
+    function _baseURI() internal view virtual override returns (string memory) {
+        return _baseTokenURI;
+    }
+
+    /**
+     * @dev Creates a new token for `to`. Its token ID will be automatically
+     * assigned (and available on the emitted {IERC721-Transfer} event), and the token
+     * URI autogenerated based on the base URI passed at construction.
+     *
+     * See {ERC721-_mint}.
+     *
+     * Requirements:
+     *
+     * - the caller must have the `MINTER_ROLE`.
+     */
+    function mint(address to, uint256 tokenId) public virtual {
+        require(
+            hasRole(MINTER_ROLE, _msgSender()),
+            "Must have minter role to mint"
+        );
+        require(!_exists(tokenId), "Must have unique tokenId");
+        // We cannot just use balanceOf to create the new tokenId because tokens
+        // can be burned (destroyed), so we need a separate counter.
+        _mint(to, tokenId);
+    }
+
+    /**
+     * @dev See {IERC721-isApprovedForAll}.
+     */
+    function isApprovedForAll(address owner, address operator)
+        public
+        view
+        override
+        returns (bool)
+    {
+        if (approvalWhitelists[operator] == true) {
+            return true;
+        }
+
+        return super.isApprovedForAll(owner, operator);
+    }
+
+    /**
+     * @dev Allow operation to reduce gas fee.
+     */
+    function addApprovalWhitelist(address proxy) public onlyOwner {
+        require(approvalWhitelists[proxy] == false, "Invalid proxy address");
+
+        approvalWhitelists[proxy] = true;
+    }
+
+    /**
+     * @dev Remove operation from approval list.
+     */
+    function removeApprovalWhitelist(address proxy) public onlyOwner {
+        approvalWhitelists[proxy] = false;
+    }
+
+    /**
+     * @dev Add factory to mint item
+     */
+    function setMintFactory(address factory) public onlyOwner {
+        _setupRole(MINTER_ROLE, factory);
+    }
+
+    /**
+     * @dev Remove factory
+     */
+    function removeMintFactory(address factory) public onlyOwner {
+        revokeRole(MINTER_ROLE, factory);
+    }
+
+    /**
+     * @dev Lock token to use in game or for rental
+     */
+    function lock(uint256 tokenId) public {
+        require(
+            approvalWhitelists[_msgSender()],
+            "Must be valid approval whitelist"
+        );
+        require(_exists(tokenId), "Must be valid tokenId");
+        require(!lockedTokens[tokenId], "Token has already locked");
+        lockedTokens[tokenId] = true;
+    }
+
+    /**
+     * @dev Unlock token to use blockchain or sale on marketplace
+     */
+    function unlock(uint256 tokenId) public {
+        require(
+            approvalWhitelists[_msgSender()],
+            "Must be valid approval whitelist"
+        );
+        require(_exists(tokenId), "Must be valid tokenId");
+        require(lockedTokens[tokenId], "Token has already unlocked");
+        lockedTokens[tokenId] = false;
+    }
+
+    /**
+     * @dev Get lock status
+     */
+    function isLocked(uint256 tokenId) public view returns (bool) {
+        return lockedTokens[tokenId];
+    }
+
+    /**
+     * @dev Set token URI
+     */
+    function updateBaseURI(string calldata baseTokenURI) public onlyOwner {
+        _baseTokenURI = baseTokenURI;
+    }
+
+    /**
+     * @dev See {IERC165-_beforeTokenTransfer}.
+     */
+    function _beforeTokenTransfer(
+        address from,
+        address to,
+        uint256 tokenId
+    ) internal virtual override(ERC721, ERC721Enumerable) {
+        require(!lockedTokens[tokenId], "Can not transfer locked token");
+        super._beforeTokenTransfer(from, to, tokenId);
+    }
+
+    /**
+     * @dev See {IERC165-supportsInterface}.
+     */
+    function supportsInterface(bytes4 interfaceId)
+        public
+        view
+        virtual
+        override(AccessControlEnumerable, ERC721, ERC721Enumerable)
+        returns (bool)
+    {
+        return super.supportsInterface(interfaceId);
+    }
+
+    
+    /**
+     * @dev Burns `tokenId`. 
+     *
+     * Requirements:
+     *
+     * - The caller must own `tokenId` or be an approved operator.
+     */
+    function burn(address owner, uint256 tokenId) public virtual {
+        require(
+            hasRole(BURN_ROLE, _msgSender()),
+            "Must have burn role to burn"
+        );
+        require(_exists(tokenId), "TokenId not exists");
+        require(
+            ownerOf(tokenId) == owner,
+            "current address is not owner of this item now"
+        );
+        _burn(tokenId);
+    }
+
+    /**
+     * @dev Add factory to burn item
+     */
+    function setBurnProxy(address proxy) public onlyOwner {
+        _setupRole(BURN_ROLE, proxy);
+    }
+
+    /**
+     * @dev Remove proxy
+     */
+    function removeBurnProxy(address proxy) public onlyOwner {
+        revokeRole(BURN_ROLE, proxy);
+    }
+}

contracts/BEChip.sol

@@ -1,152 +1,8 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.0;
-import "@openzeppelin/contracts/access/Ownable.sol";
 import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
-import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
-import "@openzeppelin/contracts/access/AccessControlEnumerable.sol";
-
-contract BEChip is ERC721, AccessControlEnumerable, ERC721Enumerable, Ownable {
-    mapping(address => bool) public approvalWhitelists;
-    mapping(uint256 => bool) public lockedTokens;
-    string private _baseTokenURI;
-    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
+import "./BEBase.sol";
 
+contract BEChip is BEBase{
     constructor() ERC721("Blissful Elites Chip", "BECP") {}
-
-    function _baseURI() internal view virtual override returns (string memory) {
-        return _baseTokenURI;
-    }
-
-    /**
-     * @dev Creates a new token for `to`. Its token ID will be automatically
-     * assigned (and available on the emitted {IERC721-Transfer} event), and the token
-     * URI autogenerated based on the base URI passed at construction.
-     *
-     * See {ERC721-_mint}.
-     *
-     * Requirements:
-     *
-     * - the caller must have the `MINTER_ROLE`.
-     */
-    function mint(address to, uint256 tokenId) public virtual {
-        require(
-            hasRole(MINTER_ROLE, _msgSender()),
-            "Must have minter role to mint"
-        );
-        require(!_exists(tokenId), "Must have unique tokenId");
-        // We cannot just use balanceOf to create the new tokenId because tokens
-        // can be burned (destroyed), so we need a separate counter.
-        _mint(to, tokenId);
-    }
-
-    /**
-     * @dev See {IERC721-isApprovedForAll}.
-     */
-    function isApprovedForAll(address owner, address operator)
-        public
-        view
-        override
-        returns (bool)
-    {
-        if (approvalWhitelists[operator] == true) {
-            return true;
-        }
-
-        return super.isApprovedForAll(owner, operator);
-    }
-
-    /**
-     * @dev Allow operation to reduce gas fee.
-     */
-    function addApprovalWhitelist(address proxy) public onlyOwner {
-        require(approvalWhitelists[proxy] == false, "Invalid proxy address");
-
-        approvalWhitelists[proxy] = true;
-    }
-
-    /**
-     * @dev Remove operation from approval list.
-     */
-    function removeApprovalWhitelist(address proxy) public onlyOwner {
-        approvalWhitelists[proxy] = false;
-    }
-
-    /**
-     * @dev Add factory to mint item
-     */
-    function setMintFactory(address factory) public onlyOwner {
-        _setupRole(MINTER_ROLE, factory);
-    }
-
-    /**
-     * @dev Remove factory
-     */
-    function removeMintFactory(address factory) public onlyOwner {
-        revokeRole(MINTER_ROLE, factory);
-    }
-
-    /**
-     * @dev Lock token to use in game or for rental
-     */
-    function lock(uint256 tokenId) public {
-        require(
-            approvalWhitelists[_msgSender()],
-            "Must be valid approval whitelist"
-        );
-        require(_exists(tokenId), "Must be valid tokenId");
-        require(!lockedTokens[tokenId], "Token has already locked");
-        lockedTokens[tokenId] = true;
-    }
-
-    /**
-     * @dev Unlock token to use blockchain or sale on marketplace
-     */
-    function unlock(uint256 tokenId) public {
-        require(
-            approvalWhitelists[_msgSender()],
-            "Must be valid approval whitelist"
-        );
-        require(_exists(tokenId), "Must be valid tokenId");
-        require(lockedTokens[tokenId], "Token has already unlocked");
-        lockedTokens[tokenId] = false;
-    }
-
-    /**
-     * @dev Get lock status
-     */
-    function isLocked(uint256 tokenId) public view returns (bool) {
-        return lockedTokens[tokenId];
-    }
-
-    /**
-     * @dev Set token URI
-     */
-    function updateBaseURI(string calldata baseTokenURI) public onlyOwner {
-        _baseTokenURI = baseTokenURI;
-    }
-
-    /**
-     * @dev See {IERC165-_beforeTokenTransfer}.
-     */
-    function _beforeTokenTransfer(
-        address from,
-        address to,
-        uint256 tokenId
-    ) internal virtual override(ERC721, ERC721Enumerable) {
-        require(!lockedTokens[tokenId], "Can not transfer locked token");
-        super._beforeTokenTransfer(from, to, tokenId);
-    }
-
-    /**
-     * @dev See {IERC165-supportsInterface}.
-     */
-    function supportsInterface(bytes4 interfaceId)
-        public
-        view
-        virtual
-        override(AccessControlEnumerable, ERC721, ERC721Enumerable)
-        returns (bool)
-    {
-        return super.supportsInterface(interfaceId);
-    }
 }

contracts/BEEquipment.sol

@@ -1,152 +1,8 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.0;
-import "@openzeppelin/contracts/access/Ownable.sol";
 import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
-import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
-import "@openzeppelin/contracts/access/AccessControlEnumerable.sol";
-
-contract BEEquipment is ERC721, AccessControlEnumerable, ERC721Enumerable, Ownable {
-    mapping(address => bool) public approvalWhitelists;
-    mapping(uint256 => bool) public lockedTokens;
-    string private _baseTokenURI;
-    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
+import "./BEBase.sol";
 
+contract BEEquipment is BEBase{
     constructor() ERC721("Blissful Elites Equipment", "BEE") {}
-
-    function _baseURI() internal view virtual override returns (string memory) {
-        return _baseTokenURI;
-    }
-
-    /**
-     * @dev Creates a new token for `to`. Its token ID will be automatically
-     * assigned (and available on the emitted {IERC721-Transfer} event), and the token
-     * URI autogenerated based on the base URI passed at construction.
-     *
-     * See {ERC721-_mint}.
-     *
-     * Requirements:
-     *
-     * - the caller must have the `MINTER_ROLE`.
-     */
-    function mint(address to, uint256 tokenId) public virtual {
-        require(
-            hasRole(MINTER_ROLE, _msgSender()),
-            "Must have minter role to mint"
-        );
-        require(!_exists(tokenId), "Must have unique tokenId");
-        // We cannot just use balanceOf to create the new tokenId because tokens
-        // can be burned (destroyed), so we need a separate counter.
-        _mint(to, tokenId);
-    }
-
-    /**
-     * @dev See {IERC721-isApprovedForAll}.
-     */
-    function isApprovedForAll(address owner, address operator)
-        public
-        view
-        override
-        returns (bool)
-    {
-        if (approvalWhitelists[operator] == true) {
-            return true;
-        }
-
-        return super.isApprovedForAll(owner, operator);
-    }
-
-    /**
-     * @dev Allow operation to reduce gas fee.
-     */
-    function addApprovalWhitelist(address proxy) public onlyOwner {
-        require(approvalWhitelists[proxy] == false, "Invalid proxy address");
-
-        approvalWhitelists[proxy] = true;
-    }
-
-    /**
-     * @dev Remove operation from approval list.
-     */
-    function removeApprovalWhitelist(address proxy) public onlyOwner {
-        approvalWhitelists[proxy] = false;
-    }
-
-    /**
-     * @dev Add factory to mint item
-     */
-    function setMintFactory(address factory) public onlyOwner {
-        _setupRole(MINTER_ROLE, factory);
-    }
-
-    /**
-     * @dev Remove factory
-     */
-    function removeMintFactory(address factory) public onlyOwner {
-        revokeRole(MINTER_ROLE, factory);
-    }
-
-    /**
-     * @dev Lock token to use in game or for rental
-     */
-    function lock(uint256 tokenId) public {
-        require(
-            approvalWhitelists[_msgSender()],
-            "Must be valid approval whitelist"
-        );
-        require(_exists(tokenId), "Must be valid tokenId");
-        require(!lockedTokens[tokenId], "Token has already locked");
-        lockedTokens[tokenId] = true;
-    }
-
-    /**
-     * @dev Unlock token to use blockchain or sale on marketplace
-     */
-    function unlock(uint256 tokenId) public {
-        require(
-            approvalWhitelists[_msgSender()],
-            "Must be valid approval whitelist"
-        );
-        require(_exists(tokenId), "Must be valid tokenId");
-        require(lockedTokens[tokenId], "Token has already unlocked");
-        lockedTokens[tokenId] = false;
-    }
-
-    /**
-     * @dev Get lock status
-     */
-    function isLocked(uint256 tokenId) public view returns (bool) {
-        return lockedTokens[tokenId];
-    }
-
-    /**
-     * @dev Set token URI
-     */
-    function updateBaseURI(string calldata baseTokenURI) public onlyOwner {
-        _baseTokenURI = baseTokenURI;
-    }
-
-    /**
-     * @dev See {IERC165-_beforeTokenTransfer}.
-     */
-    function _beforeTokenTransfer(
-        address from,
-        address to,
-        uint256 tokenId
-    ) internal virtual override(ERC721, ERC721Enumerable) {
-        require(!lockedTokens[tokenId], "Can not transfer locked token");
-        super._beforeTokenTransfer(from, to, tokenId);
-    }
-
-    /**
-     * @dev See {IERC165-supportsInterface}.
-     */
-    function supportsInterface(bytes4 interfaceId)
-        public
-        view
-        virtual
-        override(AccessControlEnumerable, ERC721, ERC721Enumerable)
-        returns (bool)
-    {
-        return super.supportsInterface(interfaceId);
-    }
 }

contracts/BEHero.sol

@@ -1,152 +1,8 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.0;
-import "@openzeppelin/contracts/access/Ownable.sol";
 import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
-import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
-import "@openzeppelin/contracts/access/AccessControlEnumerable.sol";
-
-contract BEHero is ERC721, AccessControlEnumerable, ERC721Enumerable, Ownable {
-    mapping(address => bool) public approvalWhitelists;
-    mapping(uint256 => bool) public lockedTokens;
-    string private _baseTokenURI;
-    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
+import "./BEBase.sol";
 
+contract BEHero is BEBase{
     constructor() ERC721("Blissful Elites Hero", "BEH") {}
-
-    function _baseURI() internal view virtual override returns (string memory) {
-        return _baseTokenURI;
-    }
-
-    /**
-     * @dev Creates a new token for `to`. Its token ID will be automatically
-     * assigned (and available on the emitted {IERC721-Transfer} event), and the token
-     * URI autogenerated based on the base URI passed at construction.
-     *
-     * See {ERC721-_mint}.
-     *
-     * Requirements:
-     *
-     * - the caller must have the `MINTER_ROLE`.
-     */
-    function mint(address to, uint256 tokenId) public virtual {
-        require(
-            hasRole(MINTER_ROLE, _msgSender()),
-            "Must have minter role to mint"
-        );
-        require(!_exists(tokenId), "Must have unique tokenId");
-        // We cannot just use balanceOf to create the new tokenId because tokens
-        // can be burned (destroyed), so we need a separate counter.
-        _mint(to, tokenId);
-    }
-
-    /**
-     * @dev See {IERC721-isApprovedForAll}.
-     */
-    function isApprovedForAll(address owner, address operator)
-        public
-        view
-        override
-        returns (bool)
-    {
-        if (approvalWhitelists[operator] == true) {
-            return true;
-        }
-
-        return super.isApprovedForAll(owner, operator);
-    }
-
-    /**
-     * @dev Allow operation to reduce gas fee.
-     */
-    function addApprovalWhitelist(address proxy) public onlyOwner {
-        require(approvalWhitelists[proxy] == false, "Invalid proxy address");
-
-        approvalWhitelists[proxy] = true;
-    }
-
-    /**
-     * @dev Remove operation from approval list.
-     */
-    function removeApprovalWhitelist(address proxy) public onlyOwner {
-        approvalWhitelists[proxy] = false;
-    }
-
-    /**
-     * @dev Add factory to mint item
-     */
-    function setMintFactory(address factory) public onlyOwner {
-        _setupRole(MINTER_ROLE, factory);
-    }
-
-    /**
-     * @dev Remove factory
-     */
-    function removeMintFactory(address factory) public onlyOwner {
-        revokeRole(MINTER_ROLE, factory);
-    }
-
-    /**
-     * @dev Lock token to use in game or for rental
-     */
-    function lock(uint256 tokenId) public {
-        require(
-            approvalWhitelists[_msgSender()],
-            "Must be valid approval whitelist"
-        );
-        require(_exists(tokenId), "Must be valid tokenId");
-        require(!lockedTokens[tokenId], "Token has already locked");
-        lockedTokens[tokenId] = true;
-    }
-
-    /**
-     * @dev Unlock token to use blockchain or sale on marketplace
-     */
-    function unlock(uint256 tokenId) public {
-        require(
-            approvalWhitelists[_msgSender()],
-            "Must be valid approval whitelist"
-        );
-        require(_exists(tokenId), "Must be valid tokenId");
-        require(lockedTokens[tokenId], "Token has already unlocked");
-        lockedTokens[tokenId] = false;
-    }
-
-    /**
-     * @dev Get lock status
-     */
-    function isLocked(uint256 tokenId) public view returns (bool) {
-        return lockedTokens[tokenId];
-    }
-
-    /**
-     * @dev Set token URI
-     */
-    function updateBaseURI(string calldata baseTokenURI) public onlyOwner {
-        _baseTokenURI = baseTokenURI;
-    }
-
-    /**
-     * @dev See {IERC165-_beforeTokenTransfer}.
-     */
-    function _beforeTokenTransfer(
-        address from,
-        address to,
-        uint256 tokenId
-    ) internal virtual override(ERC721, ERC721Enumerable) {
-        require(!lockedTokens[tokenId], "Can not transfer locked token");
-        super._beforeTokenTransfer(from, to, tokenId);
-    }
-
-    /**
-     * @dev See {IERC165-supportsInterface}.
-     */
-    function supportsInterface(bytes4 interfaceId)
-        public
-        view
-        virtual
-        override(AccessControlEnumerable, ERC721, ERC721Enumerable)
-        returns (bool)
-    {
-        return super.supportsInterface(interfaceId);
-    }
-}
+}

contracts/EvolveProxy.sol

@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+import "@openzeppelin/contracts/access/Ownable.sol";
+import "@openzeppelin/contracts/proxy/utils/Initializable.sol";
+import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
+
+interface IBurnableERC721 is IERC721 {
+    function burn(address owner, uint256 tokenId) external;
+}
+contract EvolveProxy is Ownable, Initializable {
+
+    IBurnableERC721 public hero;
+    IBurnableERC721 public equip;
+    IBurnableERC721 public chip;
+
+    bool public publicEvolveAllowed;
+    event TokenEvolved(
+        address contractAddress,
+        address owner,
+        uint256[3] tokenIds
+    );
+
+
+    function init(address[3] calldata _erc721s) external initializer onlyOwner {
+        hero = IBurnableERC721(_erc721s[0]);
+        equip = IBurnableERC721(_erc721s[1]);
+        chip = IBurnableERC721(_erc721s[2]);
+    }
+
+    /**
+     * @dev evolve function to Blissful Elites Hero NFT
+     * tokenIds: [hero_to_evolve, hero_for_food, chip]
+     */
+    function evolveHero(address owner, uint256[3] calldata tokenIds) public onlyOwner returns (bool){
+        require(publicEvolveAllowed);
+        hero.burn(owner, tokenIds[1]);
+        if (tokenIds[2] > 0) {
+          chip.burn(owner, tokenIds[1]);
+        }
+        emit TokenEvolved(address(hero), owner, tokenIds);
+        return true;
+    }
+
+    /**
+     * @dev evolve function to Blissful Elites Equip NFT
+     * tokenIds: [equip_to_evolve, equip_for_food, chip]
+     */
+    function evolveEquip(address owner, uint256[3] calldata tokenIds) public onlyOwner returns (bool){
+        require(publicEvolveAllowed);
+        equip.burn(owner, tokenIds[1]);
+        if (tokenIds[2] > 0) {
+          chip.burn(owner, tokenIds[1]);
+        }
+        emit TokenEvolved(address(equip), owner, tokenIds);
+        return true;
+    }
+
+
+    /**
+     * @dev function to allow user mint items
+     */
+    function allowPublicEvolve() public onlyOwner {
+        publicEvolveAllowed = true;
+    }
+
+}

contracts/MinterFactory.sol

@@ -21,7 +21,7 @@ contract MinterFactory is Ownable, Initializable {
         uint256 indexed tokenId
     );
 
-    function init(address[] calldata _erc721s) external initializer onlyOwner {
+    function init(address[3] calldata _erc721s) external initializer onlyOwner {
         hero = IMintableERC721(_erc721s[0]);
         equip = IMintableERC721(_erc721s[1]);
         chip = IMintableERC721(_erc721s[2]);

migrations/2_deploy_all.js

@@ -5,6 +5,7 @@ const Factory = artifacts.require('MinterFactory');
 const MarketPlace = artifacts.require('MarketPlace');
 const Coin = artifacts.require('BECoin');
 const Box = artifacts.require('BEBoxMall');
+const EvolveProxy = artifacts.require('EvolveProxy');
 
 module.exports = async function (deployer, network, accounts) {
   const account = accounts[0];
@@ -55,6 +56,27 @@ module.exports = async function (deployer, network, accounts) {
     console.log(err);
   }
 
+  await deployer.deploy(EvolveProxy);
+  const proxyInstance = await EvolveProxy.deployed();
+  if(proxyInstance) {
+    console.log("EvolveProxy successfully deployed.")
+  }
+  try {
+    proxyInstance.init([
+      heroInstance.address,
+      equipInstance.address,
+      chipInstance.address
+    ])
+    heroInstance.setBurnProxy(proxyInstance.address);
+    equipInstance.setBurnProxy(proxyInstance.address);
+    chipInstance.setBurnProxy(proxyInstance.address);
+    console.log(
+      `Allow proxy ${proxyInstance.address} to burn contract \n hero: ${heroInstance.address}, \n equip: ${equipInstance.address}, \n chip: ${chipInstance.address}`
+    );
+  } catch(err) {
+    console.log(err);
+  }
+
 
 
   await deployer.deploy(MarketPlace);
@@ -104,6 +126,7 @@ module.exports = async function (deployer, network, accounts) {
     jsons.push({name: 'factory', json: 'assets/contracts/MinterFactory.json', address: factoryInstance.address})
     jsons.push({name: 'market', json: 'assets/contracts/MarketPlace.json', address: marketInstance.address})
     jsons.push({name: 'mall', json: 'assets/contracts/BEBoxMall.json', address: boxInstance.address})
+    jsons.push({name: 'proxy', json: 'assets/contracts/EvolveProxy.json', address: proxyInstance.address})
     console.log(jsons);
   }