// File: contracts/Bytecode.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;


library Bytecode {
  error InvalidCodeAtRange(uint256 _size, uint256 _start, uint256 _end);

  /**
    @notice Generate a creation code that results on a contract with `_code` as bytecode
    @param _code The returning value of the resulting `creationCode`
    @return creationCode (constructor) for new contract
  */
  function creationCodeFor(bytes memory _code) internal pure returns (bytes memory) {
    /*
      0x00    0x63         0x63XXXXXX  PUSH4 _code.length  size
      0x01    0x80         0x80        DUP1                size size
      0x02    0x60         0x600e      PUSH1 14            14 size size
      0x03    0x60         0x6000      PUSH1 00            0 14 size size
      0x04    0x39         0x39        CODECOPY            size
      0x05    0x60         0x6000      PUSH1 00            0 size
      0x06    0xf3         0xf3        RETURN
      <CODE>
    */

    return abi.encodePacked(
      hex"63",
      uint32(_code.length),
      hex"80_60_0E_60_00_39_60_00_F3",
      _code
    );
  }

  /**
    @notice Returns the size of the code on a given address
    @param _addr Address that may or may not contain code
    @return size of the code on the given `_addr`
  */
  function codeSize(address _addr) internal view returns (uint256 size) {
    assembly { size := extcodesize(_addr) }
  }

  /**
    @notice Returns the code of a given address
    @dev It will fail if `_end < _start`
    @param _addr Address that may or may not contain code
    @param _start number of bytes of code to skip on read
    @param _end index before which to end extraction
    @return oCode read from `_addr` deployed bytecode

    Forked from: https://gist.github.com/KardanovIR/fe98661df9338c842b4a30306d507fbd
  */
  function codeAt(address _addr, uint256 _start, uint256 _end) internal view returns (bytes memory oCode) {
    uint256 csize = codeSize(_addr);
    if (csize == 0) return bytes("");

    if (_start > csize) return bytes("");
    if (_end < _start) revert InvalidCodeAtRange(csize, _start, _end); 

    unchecked {
      uint256 reqSize = _end - _start;
      uint256 maxSize = csize - _start;

      uint256 size = maxSize < reqSize ? maxSize : reqSize;

      assembly {
        // allocate output byte array - this could also be done without assembly
        // by using o_code = new bytes(size)
        oCode := mload(0x40)
        // new "memory end" including padding
        mstore(0x40, add(oCode, and(add(add(size, 0x20), 0x1f), not(0x1f))))
        // store length in memory
        mstore(oCode, size)
        // actually retrieve the code, this needs assembly
        extcodecopy(_addr, add(oCode, 0x20), _start, size)
      }
    }
  }
}
// File: contracts/gbGen1.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

import "./SSTORE2.sol";

error YooooThatTokenIdIsWayTooHigh();
error GottaUnlockGen1Please();
error YoureNotTheOwnerHomie();

/*

     ██████   ██████   ██████  ██████  ██████  ██       ██████   ██████ ██   ██ ███████ 
    ██       ██    ██ ██    ██ ██   ██ ██   ██ ██      ██    ██ ██      ██  ██  ██      
    ██   ███ ██    ██ ██    ██ ██   ██ ██████  ██      ██    ██ ██      █████   ███████ 
    ██    ██ ██    ██ ██    ██ ██   ██ ██   ██ ██      ██    ██ ██      ██  ██       ██ 
     ██████   ██████   ██████  ██████  ██████  ███████  ██████   ██████ ██   ██ ███████ 
                                                                                        
                                                                                        
     ██████  ███████ ███    ██        ██                                                
    ██       ██      ████   ██       ███                                                
    ██   ███ █████   ██ ██  ██ █████  ██                                                
    ██    ██ ██      ██  ██ ██        ██                                                
     ██████  ███████ ██   ████        ██

    
    circles and squares
    🟡🟥

*/


contract goodblocksGen1
{
    // gen-1 description
    string private constant Gen1Description = unicode"who said circles and squares cant get along? welcome to gen-1 where these two shapes come together in perfect harmony. you know the drill... enjoy the art, explore the code, and dont forget to click around for some extra fun! 😉";



    /*

        ███████ ████████  ██████  ██████  ███████        
        ██         ██    ██    ██ ██   ██ ██             
        ███████    ██    ██    ██ ██████  █████          
             ██    ██    ██    ██ ██   ██ ██             
        ███████    ██     ██████  ██   ██ ███████        
                                                        
                                                        
        ██████   █████                                   
        ██   ██ ██   ██                                  
        ██   ██ ███████                                  
        ██   ██ ██   ██                                  
        ██████  ██   ██                 
               
                                                        
        ██████  ██       ██████   ██████ ██   ██ ███████ 
        ██   ██ ██      ██    ██ ██      ██  ██  ██      
        ██████  ██      ██    ██ ██      █████   ███████ 
        ██   ██ ██      ██    ██ ██      ██  ██       ██ 
        ██████  ███████  ██████   ██████ ██   ██ ███████

    */

    // gen-1 block struct
    struct Gen1Block
    {
        uint256 numLevels;
        uint256 widthInterval;
        uint256 circleCount;
        uint256 squareCount;
        uint256 noneCount;
        uint256 complexityLevel;
        bool glitchy;
        string svg;
        string name;
        string[4] palette;
    }

    // struct to store complex shapes
    struct ComplexShape
    {
        // array of addresses that store complex shape string pieces
        address[] pointers;
    }

    // 32 complex shapes for gen-1
    ComplexShape[32] private ComplexShapes;

    function readAddy(address _pointer) public view returns(string memory)
    {
        return string(SSTORE2.read(_pointer));
    }

    // add pointer to complex shape address data
    function addComplexShapePointer(uint256 _shapeIndex, uint256 _pointerIndex, address _pointer) external onlyOwner
    {
        // check if index is greater than length
        if(_pointerIndex >= ComplexShapes[_shapeIndex].pointers.length)
        {
            // push pointer
            ComplexShapes[_shapeIndex].pointers.push(_pointer);
        } else
        {
            // update pointer by index
            ComplexShapes[_shapeIndex].pointers[_pointerIndex] = _pointer;
        }
    }

    // add another sstore2 contract address to a complex shape array by index
    function addComplexShapeString(uint256 _shapeIndex, string memory _string) external onlyOwner
    {
        // write string and get pointer
        address _newPointer = SSTORE2.write(bytes(_string));
        // add pointer to complex shape array
        ComplexShapes[_shapeIndex].pointers.push(_newPointer);
    }

    // returns the svg shapes of a complex shape
    function getComplexShape(uint256 _shapeIndex) public view returns(string memory)
    {
        // if complex shape not loaded, return empty string
        if(ComplexShapes[_shapeIndex].pointers.length == 0)
        {
            return "";
        }

        uint256 i;
        string memory output;
        address[] memory pointers = ComplexShapes[_shapeIndex].pointers;
        unchecked
        {
            do
            {
                output = string.concat(output, string(SSTORE2.read(pointers[i])));
                ++i;
            } while(i<pointers.length);
        }
        return output;
    }

    // reset complex shape to rewrite shape
    function resetComplexShapePointers(uint256 _shapeIndex) external onlyOwner
    {
        delete ComplexShapes[_shapeIndex].pointers;
    }

    // borrowed colors and palettes from gen0
    string[7] private ColorGroupNames = ["Joy", "Night", "Cosmos", "Earth", "Arctic", "Serenity", "Twilight"];
    string[4][56] private ColorPalettes = 
    [
        ["#FDFF8F","#A8ECE7","#F4BEEE","#D47AE8"], // 0 palette (Joy)
        ["#FD6F96","#FFEBA1","#95DAC1","#6F69AC"],
        ["#FFDF6B","#FF79CD","#AA2EE6","#23049D"],
        ["#95E1D3","#EAFFD0","#FCE38A","#FF75A0"],
        ["#FFCC29","#F58634","#007965","#00AF91"],
        ["#998CEB","#77E4D4","#B4FE98","#FBF46D"],
        ["#EEEEEE","#77D970","#172774","#FF0075"],
        ["#005F99","#FF449F","#FFF5B7","#00EAD3"],
        ["#0B0B0D","#474A56","#929AAB","#D3D5FD"], // 1 palette (Night)
        ["#07031A","#4F8A8B","#B1B493","#FFCB74"],
        ["#2E3A63","#665C84","#71A0A5","#FAB95B"],
        ["#000000","#226089","#4592AF","#E3C4A8"],
        ["#1B1F3A","#53354A","#A64942","#FF7844"],
        ["#1a1a1a","#153B44","#2D6E7E","#C6DE41"],
        ["#0F0A3C","#07456F","#009F9D","#CDFFEB"],
        ["#130026","#801336","#C72C41","#EE4540"],
        ["#111D5E","#C70039","#F37121","#C0E218"], // 2 palette (Cosmos)
        ["#02383C","#230338","#ED5107","#C70D3A"],
        ["#03C4A1","#C62A88","#590995","#150485"],
        ["#00A8CC","#005082","#000839","#FFA41B"],
        ["#E94560","#0F3460","#16213E","#1A1A2E"],
        ["#D2FAFB","#FE346E","#512B58","#2C003E"],
        ["#706C61","#E1F4F3","#FFFFFF","#333333"],
        ["#FAF7F2","#2BB3C0","#161C2E","#EF6C35"],
        ["#FFFBE9","#E3CAA5","#CEAB93","#AD8B73"], // 3 palette (Earth)
        ["#A09F57","#C56824","#CFB784","#EADEB8"],
        ["#E3D0B9","#E1BC91","#C19277","#62959C"],
        ["#E9C891","#8A8635","#AE431E","#D06224"],
        ["#83B582","#D6E4AA","#FFFFC5","#F0DD92"],
        ["#303E27","#B4BB72","#E7EAA8","#F6FAF7"],
        ["#A8896C","#F1E8A7","#AED09E","#61B292"],
        ["#F4DFBA","#EEC373","#CA965C","#876445"],
        ["#42C2FF","#85F4FF","#B8FFF9","#EFFFFD"], // 4 palette (Arctic)
        ["#E8F0F2","#A2DBFA","#39A2DB","#053742"],
        ["#3E64FF","#5EDFFF","#B2FCFF","#ECFCFF"],
        ["#D1FFFA","#4AA9AF","#3E31AE","#1C226B"],
        ["#F7F3F3","#C1EAF2","#5CC2F2","#191BA9"],
        ["#F3F3F3","#303841","#3A4750","#2185D5"],
        ["#769FCD","#B9D7EA","#D6E6F2","#F7FBFC"],
        ["#3D6CB9","#00D1FF","#00FFF0","#FAFAF6"],
        ["#99FEFF","#94DAFF","#94B3FD","#B983FF"], // 5 palette (Serenity)
        ["#E5707E","#E6B566","#E8E9A1","#A3DDCB"],
        ["#6892D5","#79D1C3","#C9FDD7","#F8FCFB"],
        ["#6C5B7B","#C06C84","#F67280","#F8B195"],
        ["#30475E","#BA6B57","#F1935C","#E7B2A5"],
        ["#FFEBD3","#264E70","#679186","#FFB4AC"],
        ["#6DDCCF","#94EBCD","#FFEFA1","#FFCB91"],
        ["#D8EFF0","#B0E0A8","#F0F69F","#F3C1C6"],
        ["#35477D","#6C5B7B","#C06C84","#F67280"], // 6 palette (Twilight)
        ["#F6C065","#55B3B1","#AF0069","#09015F"],
        ["#470D21","#9C0F48","#D67D3E","#F9E4D4"],
        ["#001F52","#A10054","#FF8D68","#FFECBA"],
        ["#FF6C00","#A0204C","#23103A","#282D4F"],
        ["#FFF9B2","#ECAC5D","#B24080","#3F0713"],
        ["#FFE98A","#C84771","#61105E","#280B45"],
        ["#EDE862","#FA9856","#F27370","#22559C"]
    ];

    // bones of the gen-1 svg
    address[4] private SVGAddresses;

    // set svg piece
    function setSvgPiece(uint256 _index, string memory _string) external onlyOwner returns(address)
    {
        SVGAddresses[_index] = SSTORE2.write(bytes(_string));
        return SVGAddresses[_index];
    }
    
    // read svg piece
    function readSvgPiece(uint256 _index) public view returns(string memory)
    {
        return string(SSTORE2.read(SVGAddresses[_index]));
    }
    


    /*

        ███    ███  █████  ██   ██ ███████               
        ████  ████ ██   ██ ██  ██  ██                    
        ██ ████ ██ ███████ █████   █████                 
        ██  ██  ██ ██   ██ ██  ██  ██                    
        ██      ██ ██   ██ ██   ██ ███████               
                                                        
                                                        
        ██████   █████                                   
        ██   ██ ██   ██                                  
        ██   ██ ███████                                  
        ██   ██ ██   ██                                  
        ██████  ██   ██                 
                                                        
                                                        
        ██████  ██       ██████   ██████ ██   ██ ███████ 
        ██   ██ ██      ██    ██ ██      ██  ██  ██      
        ██████  ██      ██    ██ ██      █████   ███████ 
        ██   ██ ██      ██    ██ ██      ██  ██       ██ 
        ██████  ███████  ██████   ██████ ██   ██ ███████

    */

    // get token uri for gen-1
    function tokenGenURI(uint256 _tokenId, string memory _tokenMetadata, string memory _tokenAttributes) public view returns(string memory)
    {
        // check if valid token ID
        if(_tokenId > 8280) revert YooooThatTokenIdIsWayTooHigh();
        // get token data
        IGBContract.TokenData memory tokenData = GBTokenContract.getTokenData(_tokenId);
        // check if gen-1 has been unlocked
        if(tokenData.highestGenLevel < 1) revert GottaUnlockGen1Please();
        // get gen-0 block
        IGen0Contract.GoodBlock memory gen0_block = Gen0Contract.tokenToGoodblock(_tokenId);
        // get gen-1 block
        Gen1Block memory gen1_block = getGen1Block(_tokenId, tokenData, gen0_block);
        // get token metadata
        string memory metadata = blockToMetadata(tokenData, gen0_block, gen1_block, _tokenAttributes);

        // construct token uri
        string memory tokenUri = string.concat(
            '{"name":"',
            ColorGroupNames[gen0_block.colorGroupIndex],
            ' #',
            OZ.toString(_tokenId),
            '","description":"',
            Gen1Description,
            '",',
            _tokenMetadata,
            ',"attributes":[',
            metadata,
            '],"image":"data:image/svg+xml;base64,',
            string(OZ.encode(bytes(gen1_block.svg))),
            '"}'
        );
        // return that suckah!
        return string.concat("data:application/json;base64,", string(OZ.encode(bytes(tokenUri))));
    }

    // get token svg (interoperability)
    function getTokenSVG(uint256 _tokenId) public view returns(string memory)
    {
        // check if valid token ID
        if(_tokenId > 8280) revert YooooThatTokenIdIsWayTooHigh();
        // get token data
        IGBContract.TokenData memory tokenData = GBTokenContract.getTokenData(_tokenId);
        // check if gen-1 has been unlocked
        if(tokenData.highestGenLevel < 1) revert GottaUnlockGen1Please();
        // get gen-0 block
        IGen0Contract.GoodBlock memory gen0_block = Gen0Contract.tokenToGoodblock(_tokenId);

        Gen1Block memory gen1Block = getGen1Block(_tokenId, tokenData, gen0_block);
        return gen1Block.svg;
    }

    // get gen-1 block
    function getGen1Block(uint256 _tokenId, IGBContract.TokenData memory _tokenData, IGen0Contract.GoodBlock memory _gen0block) private view returns(Gen1Block memory)
    {
        // create gen-1 block
        Gen1Block memory gen1_block;
        // create token id as string
        string memory tokenIdString = OZ.toString(_tokenId);
        unchecked
        {
            // set levels and shape width interval
            gen1_block.numLevels = (random(string.concat(tokenIdString, "create x innovate x impact x do good"))%4) + 5;
            gen1_block.widthInterval = 3000/gen1_block.numLevels;   
            // retrieve color palette
            string[4] memory palette = ColorPalettes[(_gen0block.colorGroupIndex * 8) + _gen0block.paletteIndex];    
            gen1_block.palette = palette;
        }
        // get svg
        gen1_block.svg = getGen1SVG(_tokenId, _tokenData, _gen0block, gen1_block);
        // return gen-1 block
        return gen1_block;
    }
    
    // generate svg for gen-1 block
    function getGen1SVG(uint256 _tokenId, IGBContract.TokenData memory _tokenData, IGen0Contract.GoodBlock memory _gen0Block,  Gen1Block memory _gen1Block) private view returns(string memory)
    {
        uint256 width;
        uint256 shapeDesign;
        uint256 tokenRand;
        uint256 scale;
        uint256 i;

        // svg intro
        string memory svg = string.concat(
            readSvgPiece(1),
            '<g id="art"',
            _gen0Block.symmetryIndex == 5 ? ' filter="url(#glitch)">\n\n' : '>\n\n',
            '<rect x="0" y="0" width="100%" height="100%" fill="',
            _gen0Block.isDarkBlock ? '#000' : _gen1Block.palette[0],
            '"/>\n\n<g id="shapes"',
            _gen0Block.symmetryIndex == 5 ? ' filter="url(#noise)">\n\n' : '>\n\n'
        );

        unchecked
        {
            do
            {
                // get random number
                tokenRand = (_tokenId+13)*(i+1);
                
                // check if complexity is possible
                if(_gen1Block.complexityLevel > 1  || i > 5)
                {
                    // get simpler shape
                    shapeDesign = getShapeDesign(tokenRand, 150);
                } else
                {
                    // get more complex shape
                    shapeDesign = getShapeDesign(tokenRand, 300);
                }

                // update width
                width = _gen1Block.widthInterval*(_gen1Block.numLevels-i);

                // none
                if(shapeDesign == 0)
                {
                    // nothing to see here folks!
                    ++_gen1Block.noneCount;


                // basic circle
                } else if(shapeDesign == 1)
                {
                    // add to svg
                    svg = string.concat(
                        svg,
                        '<g id="shapeGroup_',
                        OZ.toString(i),
                        '" fill="',
                        _gen0Block.isDarkBlock && (tokenRand % 13 == 0) ? "#000" : _gen1Block.palette[(tokenRand+1)%4],
                        '" stroke="',
                        _gen1Block.palette[(tokenRand+2)%4],
                        '" stroke-width="50">\n',
                        drawCircle(width/2),
                        '</g>\n\n'
                    );
                    ++_gen1Block.circleCount;


                // basic square
                } else if(shapeDesign == 2)
                {
                    // add to svg
                    svg = string.concat(
                        svg,
                        '<g id="shapeGroup_',
                        OZ.toString(i),
                        '" fill="',
                        _gen0Block.isDarkBlock && (tokenRand % 13 == 0) ? "#000" : _gen1Block.palette[(tokenRand+10)%4],
                        '" stroke="',
                        _gen1Block.palette[(tokenRand+11)%4],
                        '" stroke-width="50">\n',
                        drawSquare(width),
                        '</g>\n\n'
                    );
                    ++_gen1Block.squareCount;


                // repeated circle
                } else if(shapeDesign == 3)
                {
                    // add to svg
                    scale = (width*100)/(4000);
                    svg = string.concat(
                        svg,
                        '<g id="shapeGroup_',
                        OZ.toString(i),
                        string.concat(
                            '" fill="',
                            _gen0Block.isDarkBlock && (tokenRand % 13 == 0) ? "#000" : _gen1Block.palette[(tokenRand+3)%4],
                            '" stroke="',
                            _gen1Block.palette[(tokenRand+4)%4]
                            ),
                        '" stroke-width="10" transform="translate(',
                        string.concat(addDecimalFromTheRight(200000-2000*(scale), 2), ', ', addDecimalFromTheRight(200000-2000*(scale), 2))
                    );
                    svg = string.concat(
                        svg,
                        ') scale(',
                        string.concat(addDecimalFromTheRight((scale), 2), ', ', addDecimalFromTheRight((scale), 2)),
                        ')" >\n',
                        getComplexShape((tokenRand)%12),
                        '</g>\n\n'
                    );
                    // update counts
                    ++_gen1Block.circleCount;
                    ++_gen1Block.complexityLevel;


                // repeated square
                } else if(shapeDesign == 4)
                {
                    // add to svg
                    scale = (width*100)/(4000);
                    svg = string.concat(
                        svg,
                        '<g id="shapeGroup_',
                        OZ.toString(i),
                        string.concat(
                            '" fill="',
                            _gen0Block.isDarkBlock && (tokenRand % 13 == 0) ? "#000" : _gen1Block.palette[(tokenRand+3)%4],
                            '" stroke="',
                            _gen1Block.palette[(tokenRand+4)%4]
                            ),
                        '" stroke-width="10" transform="translate(',
                        string.concat(addDecimalFromTheRight(200000-2000*(scale), 2), ', ', addDecimalFromTheRight(200000-2000*(scale), 2))
                    );
                    svg = string.concat(
                        svg,
                        ') scale(',
                        string.concat(addDecimalFromTheRight((scale), 2), ', ', addDecimalFromTheRight((scale), 2)),
                        ')" >\n',
                        getComplexShape((tokenRand)%12),
                        '</g>\n\n'
                    );
                    // update counts
                    ++_gen1Block.squareCount;
                    ++_gen1Block.complexityLevel;


                // rotated square same
                } else if(shapeDesign == 5)
                {
                    // add to svg
                    scale = (width*100)/(4000);
                    svg = string.concat(
                        svg,
                        '<g id="shapeGroup_',
                        OZ.toString(i),
                        string.concat(
                            '" fill="',
                            _gen0Block.isDarkBlock && (tokenRand % 13 == 0) ? "#000" : _gen1Block.palette[(tokenRand+3)%4],
                            '" stroke="',
                            _gen1Block.palette[(tokenRand+4)%4]
                            ),
                        '" stroke-width="10" transform="translate(',
                        string.concat(addDecimalFromTheRight(200000-2000*(scale), 2), ', ', addDecimalFromTheRight(200000-2000*(scale), 2))
                    );
                    svg = string.concat(
                        svg,
                        ') scale(',
                        string.concat(addDecimalFromTheRight((scale), 2), ', ', addDecimalFromTheRight((scale), 2)),
                        ')" >\n',
                        getComplexShape((tokenRand)%12),
                        '</g>\n\n'
                    );
                    // update counts
                    ++_gen1Block.squareCount;
                    ++_gen1Block.complexityLevel;


                //rotated square bi direction
                } else if(shapeDesign == 6)
                {
                    // add to svg
                    scale = (width*100)/(4000);
                    svg = string.concat(
                        svg,
                        '<g id="shapeGroup_',
                        OZ.toString(i),
                        string.concat(
                            '" fill="',
                            _gen0Block.isDarkBlock && (tokenRand % 13 == 0) ? "#000" : _gen1Block.palette[(tokenRand+7)%4],
                            '" stroke="',
                            _gen1Block.palette[(tokenRand+8)%4]
                            ),
                        '" stroke-width="10" transform="translate(',
                        string.concat(addDecimalFromTheRight(200000-2000*(scale), 2), ', ', addDecimalFromTheRight(200000-2000*(scale), 2))
                    );
                    svg = string.concat(
                        svg,
                        ') scale(',
                        string.concat(addDecimalFromTheRight((scale), 2), ', ', addDecimalFromTheRight((scale), 2)),
                        ')" >\n',
                        getComplexShape(((tokenRand)%12)+12),
                        '</g>\n\n'
                    );
                    // update counts
                    ++_gen1Block.squareCount;
                    ++_gen1Block.complexityLevel;
                }
                // iterate to next shape
                ++i;

            // continue until all levels are complete
            } while (i<_gen1Block.numLevels);
        }

        // return final svg
        return string.concat(
            readSvgPiece(0),
            getTokenDataString(_tokenId, _tokenData, _gen0Block, _gen1Block),
            svg,
            // end shapes group and add token name
            readSvgPiece(2),
            _gen0Block.symmetryIndex == 5 ? readSvgPiece(3) : '',
            '\n\n</svg>' // close svg
        );
    }

    // get metadata for gen-1 block
    function blockToMetadata(IGBContract.TokenData memory _tokenData, IGen0Contract.GoodBlock memory _gen0Block, Gen1Block memory _gen1Block, string memory _tokenAttributes) private view returns(string memory)
    {
        // get attribute substring
        string[2] memory ogAttributes = cleanAttributes(_tokenAttributes);
        // begin metadata
        string memory metadata = string.concat(
            '{"trait_type": "Generations Unlocked", "value":',
            OZ.toString(_tokenData.highestGenLevel+1),
            '},{"trait_type": "Active Generation", "value":',
            OZ.toString(_tokenData.activeGen),
            '},{"trait_type": "Times Transferred", "value":"',
            ogAttributes[0],
            '"},{"trait_type": "Owned Since", "value":"',
            ogAttributes[1]
        );
        metadata = string.concat(
            metadata,
            '"},{"trait_type": "Color Group", "value":"',
            ColorGroupNames[_gen0Block.colorGroupIndex],
            '"},{"trait_type": "Palette Index", "value":"',
            OZ.toString(_gen0Block.paletteIndex),

            '{"trait_type": "Shape Count", "value":"',
            OZ.toString(_gen1Block.numLevels),
            '"},{"trait_type": "Circle Count", "value":"',
            OZ.toString(_gen1Block.circleCount),
            '"},{"trait_type": "Square Count", "value":"',
            OZ.toString(_gen1Block.squareCount),
            '"},{"trait_type": "None Count", "value":"',
            OZ.toString(_gen1Block.noneCount)
        );
        metadata = string.concat(
            metadata,
            '"},{"trait_type": "Complexity Level", "value":"',
            OZ.toString(_gen1Block.complexityLevel),
            '"},{"trait_type": "Glitchy", "value":"',
            _gen0Block.symmetryIndex == 5 ? "True" : "False",
            '"},{"trait_type": "Special Trait", "value":"',
            _gen0Block.isDarkBlock ? 'Do Good"}' : 'None"}'
        );
        // return metadata string
        return metadata;
    }

    // create token data string
    function getTokenDataString(uint256 _tokenId, IGBContract.TokenData memory _tokenData, IGen0Contract.GoodBlock memory _gen0Block, Gen1Block memory _gen1Block) private view returns(string memory)
    {
        // create name
        _gen1Block.name = string.concat(ColorGroupNames[_gen0Block.colorGroupIndex], ' #', OZ.toString(_tokenId));
        // begin token data string for token
        string memory tokenDataString = string.concat(
            OZ.toString(_tokenId),
            "|",
            _gen1Block.name,
            "|",
            OZ.toHexString(_tokenData.tokenOwner),
            "|",
            OZ.toString(_tokenData.ownedSince),
            "|",
            OZ.toString(_tokenData.timesTransferred),
            "|",
            OZ.toString(_tokenData.highestGenLevel + 1),
            "|",
            OZ.toString(_tokenData.activeGen),
            "|",
            ColorGroupNames[_gen0Block.colorGroupIndex],
            "|",
            OZ.toString(_gen0Block.paletteIndex),
            "|"
        );
        tokenDataString = string.concat(
            tokenDataString,
            OZ.toString(_gen1Block.numLevels),
            "|",
            OZ.toString(_gen1Block.circleCount),
            "|",
            OZ.toString(_gen1Block.squareCount),
            "|",
            OZ.toString(_gen1Block.noneCount),
            "|",
            OZ.toString(_gen1Block.complexityLevel),
            "|",
            _gen0Block.symmetryIndex == 5 ? "true" : "false",
            "|",
            _gen0Block.isDarkBlock ? "Do Good" : "None",
            "|",
            _gen1Block.palette[0],
            "|",
            _gen1Block.palette[1],
            "|",
            _gen1Block.palette[2],
            "|",
            _gen1Block.palette[3]
        );
        // return token data string
        return tokenDataString;
    }

    // determine shape design
    function getShapeDesign(uint256 _seed, uint256 _limit) private pure returns(uint256)
    {
        // set shape weights
        uint8[7] memory ShapeDesignWeights = [50, 50, 50, 15, 15, 60, 60];
        // select a shape at random
        unchecked
        {
            uint256 index = 0;
            uint256 j = ShapeDesignWeights[0];
            uint256 i = random(string.concat("its a good day", OZ.toString(_seed*13), "to have a good day"))%_limit;
            while (j <= i)
            {
                ++index;
                j += ShapeDesignWeights[index];
            }
            return index;
        }
    }



    /*

        ██████  ██    ██ ██████  ██      ██  ██████           
        ██   ██ ██    ██ ██   ██ ██      ██ ██                
        ██████  ██    ██ ██████  ██      ██ ██                
        ██      ██    ██ ██   ██ ██      ██ ██                
        ██       ██████  ██████  ███████ ██  ██████           
                                                            
                                                            
        ████████  ██████   ██████  ██      ██ ███████ ███████ 
           ██    ██    ██ ██    ██ ██      ██ ██      ██      
           ██    ██    ██ ██    ██ ██      ██ █████   ███████ 
           ██    ██    ██ ██    ██ ██      ██ ██           ██ 
           ██     ██████   ██████  ███████ ██ ███████ ███████ 
                                                                                                       
    */

    // draw circle centered at (2000,2000)
    function drawCircle(uint256 _radius) public pure returns(string memory)
    {
        return string.concat(
            '<circle cx="2000" cy="2000" r="',
            OZ.toString(_radius),
            '"/>\n'
        );
    }

    // draw circle centered at (2000,2000)
    function drawSquare(uint256 _width) public pure returns(string memory)
    {
        uint256 o = 2000 - _width/2;
        string memory outputSVG = string.concat(
            '<rect x="',
            OZ.toString(o),
            '" y="',
            OZ.toString(o),
            '" width="',
            OZ.toString(_width),
            '" height="',
            OZ.toString(_width),
            '"/>\n'
        );
        return outputSVG;
    }

    // add decimal number from the right
    function addDecimalFromTheRight(uint256 _number, uint256 _sigFigs) public pure returns(string memory)
    {
        // get initial variables
        string memory numString = OZ.toString(_number);
        uint256 length = bytes(numString).length;
        bytes memory decimal = new bytes(_sigFigs);

        unchecked
        {
            // check if sig fig greater thant length (0 padded)
            if(_sigFigs > length)
            {
                uint256 i = _sigFigs-length;
                do
                {
                    if(i < _sigFigs-length)
                    {
                        decimal[i] = bytes("0")[0];
                    } else
                    {
                        decimal[i] = bytes(numString)[i-(_sigFigs-length)];
                    }
                    --i;
                } while(i>0);
                
                decimal[0] = "0";
                // return string
                return string.concat("0", ".", string(decimal));

            // sig figs is = length
            } else if(_sigFigs == length)
            {
                // return string
                return string.concat("0", ".", numString);
            
            // sig figs < length
            } else
            {
                uint256 wholeIndex;
                uint256 decimalIndex;
                uint256 i;
                bytes memory whole = new bytes(length-_sigFigs);
                do
                {
                    if(i < length-_sigFigs)
                    {
                        whole[wholeIndex] = bytes(numString)[i];
                        ++wholeIndex;
                    } else
                    {
                        decimal[decimalIndex] = bytes(numString)[i];
                        ++decimalIndex;
                    }
                    ++i;
                } while(i<length);
                
                // return string
                return string.concat(string(whole), ".", string(decimal));
            }   
        }
    }

    // get random number back
    function random(string memory _input) public pure returns (uint256)
    {
        return uint256(keccak256(abi.encodePacked(_input)));
    }

    // attribute data
    struct AttData
    {
        uint256 ownedStart;
        uint256 ownedEnd;
        uint256 ownedLength;
        uint256 transferStart;
        uint256 transferEnd;
        uint256 transferLength;
    }

    // funciton clean original attributes
    function cleanAttributes(string memory _attributes) public pure returns(string[2] memory)
    {
        uint256 i;
        bytes memory attBytes = bytes(_attributes);
        AttData memory attData;
        // get time owned attribute
        attData.ownedEnd = attBytes.length-3;
        for(i=attData.ownedEnd; i>0; --i)
        {
            if(attBytes[i] == bytes1('"'))
            {
                attData.ownedStart = i+1;
                attData.ownedLength = (attData.ownedEnd-attData.ownedStart+1);
                break;
            }
        }
        // get times transfrerred attribute
        attData.transferEnd = attData.ownedStart-43;
        for(i=attData.transferEnd; i>0; --i)
        {
            if(attBytes[i] == bytes1('"'))
            {
                attData.transferStart = i+1;
                attData.transferLength = (attData.transferEnd-attData.transferStart+1);
                break;
            }            
        }

        bytes memory timesTransferredBytes = new bytes(attData.transferLength);
        bytes memory ownedSinceBytes = new bytes(attData.ownedLength);
        
        for(i=0; i<attData.transferLength; i++)
        {
            timesTransferredBytes[i] = attBytes[attData.transferStart + i];
        }
        
        for(i=0; i<attData.ownedLength; i++)
        {
            ownedSinceBytes[i] = attBytes[attData.ownedStart + i];
        }

        // return attributes
        return [string(timesTransferredBytes), string(ownedSinceBytes)];
    }



    /*

        ██ ███    ██ ████████ ███████ ██████  ███████  █████   ██████ ███████
        ██ ████   ██    ██    ██      ██   ██ ██      ██   ██ ██      ██     
        ██ ██ ██  ██    ██    █████   ██████  █████   ███████ ██      █████  
        ██ ██  ██ ██    ██    ██      ██   ██ ██      ██   ██ ██      ██     
        ██ ██   ████    ██    ███████ ██   ██ ██      ██   ██  ██████ ███████

        ███████ ████████ ██    ██ ███████ ███████ 
        ██         ██    ██    ██ ██      ██      
        ███████    ██    ██    ██ █████   █████   
             ██    ██    ██    ██ ██      ██      
        ███████    ██     ██████  ██      ██

    */

    // interface contracts
    IGBContract private GBTokenContract = IGBContract(address(0x29B4Ea6B1164C7cd8A3a0a1dc4ad88d1E0589124));
    IGen0Contract private Gen0Contract = IGen0Contract(address(0xAd77f8106d1E4891be0428133f35F78977671F2F));
    
    // set contract addresses
    function setInterfaceAddresses(address[2] memory _newAddresses) external onlyOwner
    {
        GBTokenContract = IGBContract(_newAddresses[0]);
        Gen0Contract = IGen0Contract(_newAddresses[1]);    
    } 



    /*
  
         ██████  ██     ██ ███    ██ ███████ ██████      ███████ ██   ██ ██ ███████ 
        ██    ██ ██     ██ ████   ██ ██      ██   ██     ██      ██   ██ ██    ███  
        ██    ██ ██  █  ██ ██ ██  ██ █████   ██████      ███████ ███████ ██   ███   
        ██    ██ ██ ███ ██ ██  ██ ██ ██      ██   ██          ██ ██   ██ ██  ███    
         ██████   ███ ███  ██   ████ ███████ ██   ██     ███████ ██   ██ ██ ███████
  
    */

    // construct that thing
    constructor()
    {
        ContractOwner = msg.sender;
    }

    // contract owner 
    address private ContractOwner;

    // only owner modifier
    function _onlyOwner() private view
    {
        if(msg.sender != ContractOwner) revert YoureNotTheOwnerHomie();
    }
    modifier onlyOwner()
    {
        _onlyOwner();
        _;
    }

    // transfer contract ownership
    function transferOwnership(address _newOwner) external onlyOwner
    {
        ContractOwner = _newOwner;
    }

    // if youre reading this, make a goodblocks collage with all our tokens
}


// interface for the goodblocks contract
interface IGBContract
{
    struct TokenData
    {
        uint8 activeGen;
        uint8 highestGenLevel;
        uint64 timesTransferred;
        uint64 ownedSince;
        address tokenOwner;
    }
    function ownerOf(uint256 _tokenId) external view returns(address);
    function getTokenData(uint256 _tokenId) external view returns (TokenData memory);
}

// interface for the gen-0 contract
interface IGen0Contract
{
    struct GoodBlock
    {
        uint8 pixelSizeIndex;
        uint8 symmetryIndex;
        uint8 colorGroupIndex;
        uint8 paletteIndex;
        bool isDarkBlock; 
        uint16 tokenIndex;
        bytes3 labelColor;
        string blockDNA;
    }
    
    function tokenToGoodblock(uint256 _tokenId) external view returns(GoodBlock memory);
}



/*

        ██      ██ ██████  ██████   █████  ██████  ██ ███████ ███████ 
        ██      ██ ██   ██ ██   ██ ██   ██ ██   ██ ██ ██      ██      
        ██      ██ ██████  ██████  ███████ ██████  ██ █████   ███████ 
        ██      ██ ██   ██ ██   ██ ██   ██ ██   ██ ██ ██           ██ 
        ███████ ██ ██████  ██   ██ ██   ██ ██   ██ ██ ███████ ███████

        using OpenZeppelin Strings and Base64 contracts

    */

library OZ
{
    // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;
    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256)
    {
        uint256 result = 0;
        unchecked
        {
            if (value >= 10**64)
            {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32)
            {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16)
            {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8)
            {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4)
            {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2)
            {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1)
            {
                result += 1;
            }
        }
        return result;
    }
    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory)
    {
        unchecked
        {
            uint256 length = log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly
            {
                ptr := add(buffer, add(32, length))
            }
            while (true)
            {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly
                {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }
    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory)
    {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory)
    {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i)
        {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }


    // OpenZeppelin Contracts (last updated v4.7.0) (utils/Base64.sol)
    /**
     * @dev Base64 Encoding/Decoding Table
     */
    string internal constant _TABLE = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
    /**
     * @dev Converts a `bytes` to its Bytes64 `string` representation.
     */
    function encode(bytes memory data) internal pure returns (string memory)
    {
        /**
         * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence
         * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol
         */
        if (data.length == 0) return "";

        // Loads the table into memory
        string memory table = _TABLE;

        // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter
        // and split into 4 numbers of 6 bits.
        // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up
        // - `data.length + 2`  -> Round up
        // - `/ 3`              -> Number of 3-bytes chunks
        // - `4 *`              -> 4 characters for each chunk
        string memory result = new string(4 * ((data.length + 2) / 3));

        /// @solidity memory-safe-assembly
        assembly
        {
            // Prepare the lookup table (skip the first "length" byte)
            let tablePtr := add(table, 1)

            // Prepare result pointer, jump over length
            let resultPtr := add(result, 32)

            // Run over the input, 3 bytes at a time
            for
            {
                let dataPtr := data
                let endPtr := add(data, mload(data))
            } lt(dataPtr, endPtr)
            {

            }
            {
                // Advance 3 bytes
                dataPtr := add(dataPtr, 3)
                let input := mload(dataPtr)

                // To write each character, shift the 3 bytes (18 bits) chunk
                // 4 times in blocks of 6 bits for each character (18, 12, 6, 0)
                // and apply logical AND with 0x3F which is the number of
                // the previous character in the ASCII table prior to the Base64 Table
                // The result is then added to the table to get the character to write,
                // and finally write it in the result pointer but with a left shift
                // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits

                mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))
                resultPtr := add(resultPtr, 1) // Advance

                mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))
                resultPtr := add(resultPtr, 1) // Advance

                mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F))))
                resultPtr := add(resultPtr, 1) // Advance

                mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F))))
                resultPtr := add(resultPtr, 1) // Advance
            }

            // When data `bytes` is not exactly 3 bytes long
            // it is padded with `=` characters at the end
            switch mod(mload(data), 3)
            case 1
            {
                mstore8(sub(resultPtr, 1), 0x3d)
                mstore8(sub(resultPtr, 2), 0x3d)
            }
            case 2
            {
                mstore8(sub(resultPtr, 1), 0x3d)
            }
        }
        return result;
    }
}
// File: contracts/SSTORE2.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./Bytecode.sol";

/**
  @title A key-value storage with auto-generated keys for storing chunks of data with a lower write & read cost.
  @author Agustin Aguilar <aa@horizon.io>

  Readme: https://github.com/0xsequence/sstore2#readme
*/
library SSTORE2 {
  error WriteError();

  /**
    @notice Stores `_data` and returns `pointer` as key for later retrieval
    @dev The pointer is a contract address with `_data` as code
    @param _data to be written
    @return pointer Pointer to the written `_data`
  */
  function write(bytes memory _data) internal returns (address pointer) {
    // Append 00 to _data so contract can't be called
    // Build init code
    bytes memory code = Bytecode.creationCodeFor(
      abi.encodePacked(
        hex'00',
        _data
      )
    );

    // Deploy contract using create
    assembly { pointer := create(0, add(code, 32), mload(code)) }

    // Address MUST be non-zero
    if (pointer == address(0)) revert WriteError();
  }

  /**
    @notice Reads the contents of the `_pointer` code as data, skips the first byte 
    @dev The function is intended for reading pointers generated by `write`
    @param _pointer to be read
    @return data read from `_pointer` contract
  */
  function read(address _pointer) internal view returns (bytes memory) {
    return Bytecode.codeAt(_pointer, 1, type(uint256).max);
  }

  /**
    @notice Reads the contents of the `_pointer` code as data, skips the first byte 
    @dev The function is intended for reading pointers generated by `write`
    @param _pointer to be read
    @param _start number of bytes to skip
    @return data read from `_pointer` contract
  */
  function read(address _pointer, uint256 _start) internal view returns (bytes memory) {
    return Bytecode.codeAt(_pointer, _start + 1, type(uint256).max);
  }

  /**
    @notice Reads the contents of the `_pointer` code as data, skips the first byte 
    @dev The function is intended for reading pointers generated by `write`
    @param _pointer to be read
    @param _start number of bytes to skip
    @param _end index before which to end extraction
    @return data read from `_pointer` contract
  */
  function read(address _pointer, uint256 _start, uint256 _end) internal view returns (bytes memory) {
    return Bytecode.codeAt(_pointer, _start + 1, _end + 1);
  }
}