1155 mint时判断最大数量

contracts/logic/MinterFactory.sol

@@ -15,6 +15,7 @@ contract MinterFactory is Ownable, Initializable, HasSignature {
     IBEERC1155 public chip;
     IBEERC1155 public shard;
     uint256 private _duration;
+    mapping(address => bool) public approvalLists;
 
     event TokenMinted(
         address contractAddress,
@@ -41,6 +42,21 @@ contract MinterFactory is Ownable, Initializable, HasSignature {
         shard = IBEERC1155(_erc721s[3]);
         _duration = 1 days;
     }
+    
+    /**
+      * @dev Allow operation to reverse signature.
+      */
+    function addApprovalList(address user) external onlyOwner {
+      require(!approvalLists[user], "MinterFactory: Invalid user address");
+      approvalLists[user] = true;
+    }
+    
+    /**
+      * @dev Remove operation from approval list.
+      */
+    function removeApprovalList(address user) external onlyOwner {
+      approvalLists[user] = false;
+    }
 
     /**
      * @dev update executor
@@ -229,6 +245,10 @@ contract MinterFactory is Ownable, Initializable, HasSignature {
     function ignoreSignature(
       bytes calldata signature
     ) external {
+      require(
+            approvalLists[_msgSender()],
+            "Must be valid approval list"
+        );
       if (!usedSignatures[signature]) {
         usedSignatures[signature] = true;
       }

contracts/tokens/erc1155/BEBase1155.sol

@@ -17,10 +17,13 @@ abstract contract BEBase1155 is ERC1155, AccessControl {
     mapping(uint256 => bool) public lockedTokens;
 
     mapping(address => uint256[]) private _ownedTokens;
+    // for 0 means not exists, value stored = index + 1;
     mapping(address => mapping(uint256 => uint256)) private _ownedTokensIndex;
 
     mapping(uint256 => uint256) private _totalSupply;
 
+    uint256 public maxSupply = 0;
+
     struct TokenStruct {
         uint256 tokenId;
         uint256 amount;
@@ -213,6 +216,12 @@ abstract contract BEBase1155 is ERC1155, AccessControl {
             // mint nft
             for (uint256 i = 0; i < len; ++i) {
                 _totalSupply[ids[i]] += amounts[i];
+                if (maxSupply > 0) {
+                  require(
+                    _totalSupply[ids[i]] <= maxSupply,
+                    "Can not mint for exceeds max supply"
+                  );
+                }
             }
         } else if (from != to) {
             // transfer from -> to
@@ -233,12 +242,11 @@ abstract contract BEBase1155 is ERC1155, AccessControl {
             }
         }
     }
-
     function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
         if (
             _ownedTokensIndex[to][tokenId] == 0 && balanceOf(to, tokenId) == 0
         ) {
-            _ownedTokensIndex[to][tokenId] = _ownedTokens[to].length;
+            _ownedTokensIndex[to][tokenId] = _ownedTokens[to].length + 1;
             _ownedTokens[to].push(tokenId);
         }
     }
@@ -251,12 +259,12 @@ abstract contract BEBase1155 is ERC1155, AccessControl {
         uint256 balance = balanceOf(from, tokenId);
         if (balance == amount) {
             uint256 lastTokenIndex = _ownedTokens[from].length - 1;
-            uint256 tokenIndex = _ownedTokensIndex[from][tokenId];
+            uint256 tokenIndex = _ownedTokensIndex[from][tokenId] - 1;
 
             uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
 
             _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
-            _ownedTokensIndex[from][lastTokenId] = tokenIndex; // Update the moved token's index
+            _ownedTokensIndex[from][lastTokenId] = tokenIndex + 1; // Update the moved token's index
 
             // This also deletes the contents at the last position of the array
             delete _ownedTokensIndex[from][tokenId];

contracts/tokens/erc1155/BEChip1155.sol

@@ -9,6 +9,10 @@ import "./BEBase1155.sol";
 contract BEChip1155 is BEBase1155 {
     mapping(uint256 => uint256) public tokenLevels;
 
+    constructor() {
+      maxSupply = 1;      
+    }    
+
     function canMint(uint256 id) external view override returns (bool) {
         return !exists(id); 
     }