Contract 0x5789e2B5460caE9329d93A78511E2aC49f98a1f6

 
 
Txn Hash
Method
Block
From
To
Value
0xb2f329ba372f4b6cc4c05b8ca4cbef90ad03a1ca5cea9aef8de8d4de35ad18e4Set Can Claim60384712018-07-27 9:22:421474 days 2 hrs ago0x95b697e13f227d55ef4336f7aa762fe243eef590 IN  GU: Legendary Pack0 Ether0.0005498420
0x01a64550e4cad9f1f48ff8155d98ee59d7a2ac3270cfb8d4b4541140f8e1cec5Callback59702712018-07-15 18:30:071485 days 17 hrs ago0x8bcb229a544e110b279d9158504783f9cfbe456e IN  GU: Legendary Pack0 Ether0.000226610
0x7beeadd3df84a1e72c10779ab9a8cf648dd48488d89e26cabfc84404df2bf42ePurchase59551032018-07-13 5:59:301488 days 5 hrs ago0xaf42b74f2d2c40c5cf99ae1f7357d855b02059a3 IN  GU: Legendary Pack0.36 Ether0.00018978
0x616052666475d9ec6a167bfc4daddf7526663328ea95c7bf35552c76b2dac8b0Purchase59477642018-07-12 0:29:481489 days 11 hrs ago0xe310ecb5ad4bdf59d7e2bfa28871a67d260ecef0 IN  GU: Legendary Pack0.3645 Ether0.000300613.4
0x70dba9f46171ea5f9e1b04910a456a2696858a7ab46372c643fd82858e778bfdPause59456592018-07-11 16:18:001489 days 19 hrs ago0x95b697e13f227d55ef4336f7aa762fe243eef590 IN  GU: Legendary Pack0 Ether0.0008505330
0x47ae09735d09f050973d1e8e26c9624bf8f4147caa748f504e7f06b8d8a99f95Pause59456472018-07-11 16:15:371489 days 19 hrs ago0xcb3562dd15807e2bcf35092b1e873971af0a51da IN  GU: Legendary Pack0 Ether0.0003291115
0x4fc534ac55955e9c2f137f1f2140832387e98b14ce2443c33611e3e1711188fdCallback59444982018-07-11 11:33:181490 days 4 mins ago0x1ae5f902319ab59f3c6420fb405f64d4632dc4ec IN  GU: Legendary Pack0 Ether0.0013063225
0x1027802d00bc77e6ba1cc2f482abfcd04183082f8876f700e04e9083e4cd3832Purchase59444962018-07-11 11:32:441490 days 4 mins ago0x78fea9884fb0a3e03a1b7ab06d88210994daffcf IN  GU: Legendary Pack0.36 Ether0.001021098
0xbe546bee209a2892d810d3694d68e7bd6a959a7e91871ecaf40d73dd0278fc61Callback59444432018-07-11 11:19:381490 days 17 mins ago0x1ae5f902319ab59f3c6420fb405f64d4632dc4ec IN  GU: Legendary Pack0 Ether0.0013063225
0x193f1a8952c1d8f8c95caac77744c00a5300599ce9392a4b2a2c0b3402d3aaedPurchase59444412018-07-11 11:19:281490 days 18 mins ago0x7a8660a241bc6640118276a2b0cded05e11a6998 IN  GU: Legendary Pack0.36 Ether0.0012763710
0x1f5be6667ca101d70ff805160a40575a6fd629151944b552e56f4af33363a786Callback59442272018-07-11 10:24:411490 days 1 hr ago0x1ae5f902319ab59f3c6420fb405f64d4632dc4ec IN  GU: Legendary Pack0 Ether0.0013063225
0x990c067e8b3213a67be6e02379a5acd586f736b32840552da0690bdb84bdc28aPurchase59442242018-07-11 10:24:111490 days 1 hr ago0xf7a23f55b48c027d465032fd9d0691dc469007ee IN  GU: Legendary Pack0.36 Ether0.0011488910.2
0xad0c500ebc8ecd34559be1dda12b2f71e132d647d96039b124d0ece4d5ea10e5Callback59438952018-07-11 9:09:091490 days 2 hrs ago0x31a59f382c9f93a601a7b409d412a000c56f8afb IN  GU: Legendary Pack0 Ether0.000339915
0xcb8c4d4a51750c776c61b23f9a02ec3d5f21d529018bc4038b5a967926c79255Callback59438912018-07-11 9:08:181490 days 2 hrs ago0x8bcb229a544e110b279d9158504783f9cfbe456e IN  GU: Legendary Pack0 Ether0.000226610
0x037f9dbecb4a8d9e3499eb7cb46130b3fa8b346798ea43a4548481b9e40c7711Callback59438912018-07-11 9:08:181490 days 2 hrs ago0x31a59f382c9f93a601a7b409d412a000c56f8afb IN  GU: Legendary Pack0 Ether0.0005225310
0xa2bb53944c73e2b6083a8c812a9a146906ab14883322501e3b75f99647ce616dCallback59438842018-07-11 9:06:261490 days 2 hrs ago0x1ae5f902319ab59f3c6420fb405f64d4632dc4ec IN  GU: Legendary Pack0 Ether0.0013063225
0xc37f75f13e5d4e11f9eee666a912879cc7891dd579bf8b99fff5b61973dcc01aPurchase59438832018-07-11 9:06:221490 days 2 hrs ago0x76b370bc59f32c0b58bdc4a95bcaf763d871a62e IN  GU: Legendary Pack0.36 Ether0.0011263710
0xb188cfa3894a7b9d1f83d366b6a134eb49e3992cbc09895b28494a875931024ePurchase59438812018-07-11 9:05:411490 days 2 hrs ago0x0cdd0ff2ea99e5a2476c709eeb705a70934a5c6f IN  GU: Legendary Pack0.36 Ether0.000563185
0x214685dddeed92b02f35ee3c475b242122148b8403533e10c083abf30aeb57d3Purchase59438812018-07-11 9:05:411490 days 2 hrs ago0xaf42b74f2d2c40c5cf99ae1f7357d855b02059a3 IN  GU: Legendary Pack0.36 Ether0.000190328
0xc05594a3cd53969327dbc56d217a23b275c063ea91ad9c1ea71062c426dca070Callback59438222018-07-11 8:52:141490 days 2 hrs ago0x1ae5f902319ab59f3c6420fb405f64d4632dc4ec IN  GU: Legendary Pack0 Ether0.0013063225
0xe5e092fbb767ca8da6861483adf40a1be900259b75c0a2774782b083ab30116aPurchase59438202018-07-11 8:51:361490 days 2 hrs ago0x4361e1981b9272b173f72198e447c30ba921333a IN  GU: Legendary Pack0.36 Ether0.001021098
0x9a419400ffd9772bdab709f58409d82874e7fe0e61820a86fa842ec7dbd08167Callback59437922018-07-11 8:43:441490 days 2 hrs ago0x1ae5f902319ab59f3c6420fb405f64d4632dc4ec IN  GU: Legendary Pack0 Ether0.0013063225
0x30ffc134b87d1a36a0505b74c6e82a7635cff5b346631341f5ddb502f4d6536cPurchase59437902018-07-11 8:43:341490 days 2 hrs ago0xf7a23f55b48c027d465032fd9d0691dc469007ee IN  GU: Legendary Pack0.36 Ether0.0012763710
0x4b82a2921eb64f7ef6af3a624258155c2fe7bf1f8ded34b28936ca00a9919f7fCallback59437092018-07-11 8:22:141490 days 3 hrs ago0x1ae5f902319ab59f3c6420fb405f64d4632dc4ec IN  GU: Legendary Pack0 Ether0.0013063225
0xf2640e720e3e76e14fdb138222f66ce324aabbd3be781025917351670b55aee1Purchase59437072018-07-11 8:21:451490 days 3 hrs ago0x76b370bc59f32c0b58bdc4a95bcaf763d871a62e IN  GU: Legendary Pack0.36 Ether0.0012763710
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0x1027802d00bc77e6ba1cc2f482abfcd04183082f8876f700e04e9083e4cd383259444962018-07-11 11:32:441490 days 4 mins ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0x193f1a8952c1d8f8c95caac77744c00a5300599ce9392a4b2a2c0b3402d3aaed59444412018-07-11 11:19:281490 days 18 mins ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0x990c067e8b3213a67be6e02379a5acd586f736b32840552da0690bdb84bdc28a59442242018-07-11 10:24:111490 days 1 hr ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0xc37f75f13e5d4e11f9eee666a912879cc7891dd579bf8b99fff5b61973dcc01a59438832018-07-11 9:06:221490 days 2 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0xb188cfa3894a7b9d1f83d366b6a134eb49e3992cbc09895b28494a875931024e59438812018-07-11 9:05:411490 days 2 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0xe5e092fbb767ca8da6861483adf40a1be900259b75c0a2774782b083ab30116a59438202018-07-11 8:51:361490 days 2 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0x30ffc134b87d1a36a0505b74c6e82a7635cff5b346631341f5ddb502f4d6536c59437902018-07-11 8:43:341490 days 2 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0xf2640e720e3e76e14fdb138222f66ce324aabbd3be781025917351670b55aee159437072018-07-11 8:21:451490 days 3 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0xc0be5dff7e4719496f781de0735cab34c76c9b4d241f40f9fd4aa9e7c908704659436702018-07-11 8:13:511490 days 3 hrs ago GU: Legendary Pack GU: Capped Vault1.8 Ether
0xe4b98fa8f7fa4eace92950ef367e41e17a822a5dc4d8125b5834a10a50992c0c59436392018-07-11 8:06:441490 days 3 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0x2e3cd1ec51aa5a9da75a1a3ea17e3f9fbbeb32c509a2b38d98fdde74cd964fb359436042018-07-11 7:58:341490 days 3 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0xe63f3683c5b5c498bfde7b93f51439caa93b078856e854404833c336f55ec01759435712018-07-11 7:48:401490 days 3 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0x05b62108504c4095f1250e1196d8e06ed0e820ec81e47bb0e9f57200a49ff03e59435562018-07-11 7:44:581490 days 3 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0x62af4e0893f1b9a0ac8834f78181229897354afb3771573567c46a596a6b22b459433952018-07-11 6:58:561490 days 4 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0xf9f2b1687d83b27846c1f153f269b60a4617a04aef168fbf1146eb658706b1f359432842018-07-11 6:31:011490 days 5 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0x506400fd7ece2a10559fd920860645244bb27c8ebabca1cef8924057b12dc16859432772018-07-11 6:29:241490 days 5 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0xf93272ceee1035f6275afed46dbda6aa94c259d0805eed355fd30153bdc9b41359429862018-07-11 5:22:221490 days 6 hrs ago GU: Legendary Pack GU: Capped Vault0.324 Ether
0xf93272ceee1035f6275afed46dbda6aa94c259d0805eed355fd30153bdc9b41359429862018-07-11 5:22:221490 days 6 hrs ago GU: Legendary Pack0xc7ded8d808fc92e2f1696bf8b130e3f9984c75290.036 Ether
0xb92b5e82bc5341953046d01f9f1a52030adcffcfc0bef1e717b76e26d29c8e7e59428932018-07-11 4:58:501490 days 6 hrs ago GU: Legendary Pack GU: Capped Vault0.324 Ether
0xb92b5e82bc5341953046d01f9f1a52030adcffcfc0bef1e717b76e26d29c8e7e59428932018-07-11 4:58:501490 days 6 hrs ago GU: Legendary Pack0xc7ded8d808fc92e2f1696bf8b130e3f9984c75290.036 Ether
0x10aef48a5a44deb5ed4e61bc96e07dd203e8f1e034b111c50c3c774f81af527759428232018-07-11 4:41:241490 days 6 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0xd143f34b28d449e37d8d0e561e3f1195d40de1bd7c1aae9cccc0dc9e85e14b8d59428152018-07-11 4:39:421490 days 6 hrs ago GU: Legendary Pack GU: Capped Vault0.36 Ether
0x9866519efe4f5af926df8ede5de8c72a090220941e94739695e37ae8eaa54a9959427972018-07-11 4:32:571490 days 7 hrs ago GU: Legendary Pack GU: Capped Vault1.8 Ether
0x6987668c4aaedf55ec98e5301fcc2a4f6eb3f33a63a7d9af7b52b3a546b8f89559427092018-07-11 4:10:591490 days 7 hrs ago GU: Legendary Pack GU: Capped Vault0.324 Ether
0x6987668c4aaedf55ec98e5301fcc2a4f6eb3f33a63a7d9af7b52b3a546b8f89559427092018-07-11 4:10:591490 days 7 hrs ago GU: Legendary Pack0xc7ded8d808fc92e2f1696bf8b130e3f9984c75290.036 Ether
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Contract Source Code Verified (Exact Match)

Contract Name:
LegendaryPack

Compiler Version
v0.4.24+commit.e67f0147

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2018-07-10
*/

pragma solidity 0.4.24;

contract Governable {

    event Pause();
    event Unpause();

    address public governor;
    bool public paused = false;

    constructor() public {
        governor = msg.sender;
    }

    function setGovernor(address _gov) public onlyGovernor {
        governor = _gov;
    }

    modifier onlyGovernor {
        require(msg.sender == governor);
        _;
    }

    /**
    * @dev Modifier to make a function callable only when the contract is not paused.
    */
    modifier whenNotPaused() {
        require(!paused);
        _;
    }

    /**
    * @dev Modifier to make a function callable only when the contract is paused.
    */
    modifier whenPaused() {
        require(paused);
        _;
    }

    /**
    * @dev called by the owner to pause, triggers stopped state
    */
    function pause() onlyGovernor whenNotPaused public {
        paused = true;
        emit Pause();
    }

    /**
    * @dev called by the owner to unpause, returns to normal state
    */
    function unpause() onlyGovernor whenPaused public {
        paused = false;
        emit Unpause();
    }

}

contract CardBase is Governable {


    struct Card {
        uint16 proto;
        uint16 purity;
    }

    function getCard(uint id) public view returns (uint16 proto, uint16 purity) {
        Card memory card = cards[id];
        return (card.proto, card.purity);
    }

    function getShine(uint16 purity) public pure returns (uint8) {
        return uint8(purity / 1000);
    }

    Card[] public cards;
    
}

contract CardProto is CardBase {

    event NewProtoCard(
        uint16 id, uint8 season, uint8 god, 
        Rarity rarity, uint8 mana, uint8 attack, 
        uint8 health, uint8 cardType, uint8 tribe, bool packable
    );

    struct Limit {
        uint64 limit;
        bool exists;
    }

    // limits for mythic cards
    mapping(uint16 => Limit) public limits;

    // can only set limits once
    function setLimit(uint16 id, uint64 limit) public onlyGovernor {
        Limit memory l = limits[id];
        require(!l.exists);
        limits[id] = Limit({
            limit: limit,
            exists: true
        });
    }

    function getLimit(uint16 id) public view returns (uint64 limit, bool set) {
        Limit memory l = limits[id];
        return (l.limit, l.exists);
    }

    // could make these arrays to save gas
    // not really necessary - will be update a very limited no of times
    mapping(uint8 => bool) public seasonTradable;
    mapping(uint8 => bool) public seasonTradabilityLocked;
    uint8 public currentSeason;

    function makeTradeable(uint8 season) public onlyGovernor {
        seasonTradable[season] = true;
    }

    function makeUntradable(uint8 season) public onlyGovernor {
        require(!seasonTradabilityLocked[season]);
        seasonTradable[season] = false;
    }

    function makePermanantlyTradable(uint8 season) public onlyGovernor {
        require(seasonTradable[season]);
        seasonTradabilityLocked[season] = true;
    }

    function isTradable(uint16 proto) public view returns (bool) {
        return seasonTradable[protos[proto].season];
    }

    function nextSeason() public onlyGovernor {
        //Seasons shouldn't go to 0 if there is more than the uint8 should hold, the governor should know this ¯\_(ツ)_/¯ -M
        require(currentSeason <= 255); 

        currentSeason++;
        mythic.length = 0;
        legendary.length = 0;
        epic.length = 0;
        rare.length = 0;
        common.length = 0;
    }

    enum Rarity {
        Common,
        Rare,
        Epic,
        Legendary, 
        Mythic
    }

    uint8 constant SPELL = 1;
    uint8 constant MINION = 2;
    uint8 constant WEAPON = 3;
    uint8 constant HERO = 4;

    struct ProtoCard {
        bool exists;
        uint8 god;
        uint8 season;
        uint8 cardType;
        Rarity rarity;
        uint8 mana;
        uint8 attack;
        uint8 health;
        uint8 tribe;
    }

    // there is a particular design decision driving this:
    // need to be able to iterate over mythics only for card generation
    // don't store 5 different arrays: have to use 2 ids
    // better to bear this cost (2 bytes per proto card)
    // rather than 1 byte per instance

    uint16 public protoCount;
    
    mapping(uint16 => ProtoCard) protos;

    uint16[] public mythic;
    uint16[] public legendary;
    uint16[] public epic;
    uint16[] public rare;
    uint16[] public common;

    function addProtos(
        uint16[] externalIDs, uint8[] gods, Rarity[] rarities, uint8[] manas, uint8[] attacks, uint8[] healths, uint8[] cardTypes, uint8[] tribes, bool[] packable
    ) public onlyGovernor returns(uint16) {

        for (uint i = 0; i < externalIDs.length; i++) {

            ProtoCard memory card = ProtoCard({
                exists: true,
                god: gods[i],
                season: currentSeason,
                cardType: cardTypes[i],
                rarity: rarities[i],
                mana: manas[i],
                attack: attacks[i],
                health: healths[i],
                tribe: tribes[i]
            });

            _addProto(externalIDs[i], card, packable[i]);
        }
        
    }

    function addProto(
        uint16 externalID, uint8 god, Rarity rarity, uint8 mana, uint8 attack, uint8 health, uint8 cardType, uint8 tribe, bool packable
    ) public onlyGovernor returns(uint16) {
        ProtoCard memory card = ProtoCard({
            exists: true,
            god: god,
            season: currentSeason,
            cardType: cardType,
            rarity: rarity,
            mana: mana,
            attack: attack,
            health: health,
            tribe: tribe
        });

        _addProto(externalID, card, packable);
    }

    function addWeapon(
        uint16 externalID, uint8 god, Rarity rarity, uint8 mana, uint8 attack, uint8 durability, bool packable
    ) public onlyGovernor returns(uint16) {

        ProtoCard memory card = ProtoCard({
            exists: true,
            god: god,
            season: currentSeason,
            cardType: WEAPON,
            rarity: rarity,
            mana: mana,
            attack: attack,
            health: durability,
            tribe: 0
        });

        _addProto(externalID, card, packable);
    }

    function addSpell(uint16 externalID, uint8 god, Rarity rarity, uint8 mana, bool packable) public onlyGovernor returns(uint16) {

        ProtoCard memory card = ProtoCard({
            exists: true,
            god: god,
            season: currentSeason,
            cardType: SPELL,
            rarity: rarity,
            mana: mana,
            attack: 0,
            health: 0,
            tribe: 0
        });

        _addProto(externalID, card, packable);
    }

    function addMinion(
        uint16 externalID, uint8 god, Rarity rarity, uint8 mana, uint8 attack, uint8 health, uint8 tribe, bool packable
    ) public onlyGovernor returns(uint16) {

        ProtoCard memory card = ProtoCard({
            exists: true,
            god: god,
            season: currentSeason,
            cardType: MINION,
            rarity: rarity,
            mana: mana,
            attack: attack,
            health: health,
            tribe: tribe
        });

        _addProto(externalID, card, packable);
    }

    function _addProto(uint16 externalID, ProtoCard memory card, bool packable) internal {

        require(!protos[externalID].exists);

        card.exists = true;

        protos[externalID] = card;

        protoCount++;

        emit NewProtoCard(
            externalID, currentSeason, card.god, 
            card.rarity, card.mana, card.attack, 
            card.health, card.cardType, card.tribe, packable
        );

        if (packable) {
            Rarity rarity = card.rarity;
            if (rarity == Rarity.Common) {
                common.push(externalID);
            } else if (rarity == Rarity.Rare) {
                rare.push(externalID);
            } else if (rarity == Rarity.Epic) {
                epic.push(externalID);
            } else if (rarity == Rarity.Legendary) {
                legendary.push(externalID);
            } else if (rarity == Rarity.Mythic) {
                mythic.push(externalID);
            } else {
                require(false);
            }
        }
    }

    function getProto(uint16 id) public view returns(
        bool exists, uint8 god, uint8 season, uint8 cardType, Rarity rarity, uint8 mana, uint8 attack, uint8 health, uint8 tribe
    ) {
        ProtoCard memory proto = protos[id];
        return (
            proto.exists,
            proto.god,
            proto.season,
            proto.cardType,
            proto.rarity,
            proto.mana,
            proto.attack,
            proto.health,
            proto.tribe
        );
    }

    function getRandomCard(Rarity rarity, uint16 random) public view returns (uint16) {
        // modulo bias is fine - creates rarity tiers etc
        // will obviously revert is there are no cards of that type: this is expected - should never happen
        if (rarity == Rarity.Common) {
            return common[random % common.length];
        } else if (rarity == Rarity.Rare) {
            return rare[random % rare.length];
        } else if (rarity == Rarity.Epic) {
            return epic[random % epic.length];
        } else if (rarity == Rarity.Legendary) {
            return legendary[random % legendary.length];
        } else if (rarity == Rarity.Mythic) {
            // make sure a mythic is available
            uint16 id;
            uint64 limit;
            bool set;
            for (uint i = 0; i < mythic.length; i++) {
                id = mythic[(random + i) % mythic.length];
                (limit, set) = getLimit(id);
                if (set && limit > 0){
                    return id;
                }
            }
            // if not, they get a legendary :(
            return legendary[random % legendary.length];
        }
        require(false);
        return 0;
    }

    // can never adjust tradable cards
    // each season gets a 'balancing beta'
    // totally immutable: season, rarity
    function replaceProto(
        uint16 index, uint8 god, uint8 cardType, uint8 mana, uint8 attack, uint8 health, uint8 tribe
    ) public onlyGovernor {
        ProtoCard memory pc = protos[index];
        require(!seasonTradable[pc.season]);
        protos[index] = ProtoCard({
            exists: true,
            god: god,
            season: pc.season,
            cardType: cardType,
            rarity: pc.rarity,
            mana: mana,
            attack: attack,
            health: health,
            tribe: tribe
        });
    }

}

interface ERC721Metadata /* is ERC721 */ {
    /// @notice A descriptive name for a collection of NFTs in this contract
    function name() external pure returns (string _name);

    /// @notice An abbreviated name for NFTs in this contract
    function symbol() external pure returns (string _symbol);

    /// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
    /// @dev Throws if `_tokenId` is not a valid NFT. URIs are defined in RFC
    ///  3986. The URI may point to a JSON file that conforms to the "ERC721
    ///  Metadata JSON Schema".
    function tokenURI(uint256 _tokenId) external view returns (string);
}

interface ERC721Enumerable /* is ERC721 */ {
    /// @notice Count NFTs tracked by this contract
    /// @return A count of valid NFTs tracked by this contract, where each one of
    ///  them has an assigned and queryable owner not equal to the zero address
    function totalSupply() public view returns (uint256);

    /// @notice Enumerate valid NFTs
    /// @dev Throws if `_index` >= `totalSupply()`.
    /// @param _index A counter less than `totalSupply()`
    /// @return The token identifier for the `_index`th NFT,
    ///  (sort order not specified)
    function tokenByIndex(uint256 _index) external view returns (uint256);

    /// @notice Enumerate NFTs assigned to an owner
    /// @dev Throws if `_index` >= `balanceOf(_owner)` or if
    ///  `_owner` is the zero address, representing invalid NFTs.
    /// @param _owner An address where we are interested in NFTs    owned by them
    /// @param _index A counter less than `balanceOf(_owner)`
    /// @return The token identifier for the `_index`th NFT assigned to `_owner`,
    ///   (sort order not specified)
    function tokenOfOwnerByIndex(address _owner, uint256 _index) external view returns (uint256 _tokenId);
}

interface ERC165 {
    /// @notice Query if a contract implements an interface
    /// @param interfaceID The interface identifier, as specified in ERC-165
    /// @dev Interface identification is specified in ERC-165. This function
    ///  uses less than 30,000 gas.
    /// @return `true` if the contract implements `interfaceID` and
    ///  `interfaceID` is not 0xffffffff, `false` otherwise
    function supportsInterface(bytes4 interfaceID) external view returns (bool);
}

contract ERC721 {
    event Transfer(address indexed _from, address indexed _to, uint256 _tokenId);
    event Approval(address indexed _owner, address indexed _approved, uint256 _tokenId);
    event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved);

    function balanceOf(address _owner) public view returns (uint256 _balance);
    function ownerOf(uint256 _tokenId) public view returns (address _owner);
    function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes data) public payable;
    function safeTransferFrom(address _from, address _to, uint256 _tokenId) public payable;
    function transfer(address _to, uint256 _tokenId) public payable;
    function transferFrom(address _from, address _to, uint256 _tokenId) public payable;
    function approve(address _to, uint256 _tokenId) public payable;
    function setApprovalForAll(address _to, bool _approved) public;
    function getApproved(uint256 _tokenId) public view returns (address);
    function isApprovedForAll(address _owner, address _operator) public view returns (bool);
}

contract NFT is ERC721, ERC165, ERC721Metadata, ERC721Enumerable {}

contract CardOwnership is NFT, CardProto {

    // doing this strategy doesn't save gas
    // even setting the length to the max and filling in
    // unfortunately - maybe if we stop it boundschecking
    // address[] owners;
    mapping(uint => address) owners;
    mapping(uint => address) approved;
    // support multiple operators
    mapping(address => mapping(address => bool)) operators;

    // save space, limits us to 2^40 tokens (>1t)
    mapping(address => uint40[]) public ownedTokens;

    mapping(uint => string) uris;

    // save space, limits us to 2^24 tokens per user (~17m)
    uint24[] indices;

    uint public burnCount;

    /**
    * @return the name of this token
    */
    function name() public view returns (string) {
        return "Gods Unchained";
    }

    /**
    * @return the symbol of this token
    */  
    function symbol() public view returns (string) {
        return "GODS";
    }

    /**
    * @return the total number of cards in circulation
    */
    function totalSupply() public view returns (uint) {
        return cards.length - burnCount;
    }

    /**
    * @param to : the address to which the card will be transferred
    * @param id : the id of the card to be transferred
    */
    function transfer(address to, uint id) public payable {
        require(owns(msg.sender, id));
        require(isTradable(cards[id].proto));
        require(to != address(0));
        _transfer(msg.sender, to, id);
    }

    /**
    * internal transfer function which skips checks - use carefully
    * @param from : the address from which the card will be transferred
    * @param to : the address to which the card will be transferred
    * @param id : the id of the card to be transferred
    */
    function _transfer(address from, address to, uint id) internal {
        approved[id] = address(0);
        owners[id] = to;
        _addToken(to, id);
        _removeToken(from, id);
        emit Transfer(from, to, id);
    }

    /**
    * initial internal transfer function which skips checks and saves gas - use carefully
    * @param to : the address to which the card will be transferred
    * @param id : the id of the card to be transferred
    */
    function _create(address to, uint id) internal {
        owners[id] = to;
        _addToken(to, id);
        emit Transfer(address(0), to, id);
    }

    /**
    * @param to : the address to which the cards will be transferred
    * @param ids : the ids of the cards to be transferred
    */
    function transferAll(address to, uint[] ids) public payable {
        for (uint i = 0; i < ids.length; i++) {
            transfer(to, ids[i]);
        }
    }

    /**
    * @param proposed : the claimed owner of the cards
    * @param ids : the ids of the cards to check
    * @return whether proposed owns all of the cards 
    */
    function ownsAll(address proposed, uint[] ids) public view returns (bool) {
        for (uint i = 0; i < ids.length; i++) {
            if (!owns(proposed, ids[i])) {
                return false;
            }
        }
        return true;
    }

    /**
    * @param proposed : the claimed owner of the card
    * @param id : the id of the card to check
    * @return whether proposed owns the card
    */
    function owns(address proposed, uint id) public view returns (bool) {
        return ownerOf(id) == proposed;
    }

    /**
    * @param id : the id of the card
    * @return the address of the owner of the card
    */
    function ownerOf(uint id) public view returns (address) {
        return owners[id];
    }

    /**
    * @param id : the index of the token to burn
    */
    function burn(uint id) public {
        // require(isTradable(cards[id].proto));
        require(owns(msg.sender, id));
        burnCount++;
        // use the internal transfer function as the external
        // has a guard to prevent transfers to 0x0
        _transfer(msg.sender, address(0), id);
    }

    /**
    * @param ids : the indices of the tokens to burn
    */
    function burnAll(uint[] ids) public {
        for (uint i = 0; i < ids.length; i++){
            burn(ids[i]);
        }
    }

    /**
    * @param to : the address to approve for transfer
    * @param id : the index of the card to be approved
    */
    function approve(address to, uint id) public payable {
        require(owns(msg.sender, id));
        require(isTradable(cards[id].proto));
        approved[id] = to;
        emit Approval(msg.sender, to, id);
    }

    /**
    * @param to : the address to approve for transfer
    * @param ids : the indices of the cards to be approved
    */
    function approveAll(address to, uint[] ids) public payable {
        for (uint i = 0; i < ids.length; i++) {
            approve(to, ids[i]);
        }
    }

    /**
    * @param id : the index of the token to check
    * @return the address approved to transfer this token
    */
    function getApproved(uint id) public view returns(address) {
        return approved[id];
    }

    /**
    * @param owner : the address to check
    * @return the number of tokens controlled by owner
    */
    function balanceOf(address owner) public view returns (uint) {
        return ownedTokens[owner].length;
    }

    /**
    * @param id : the index of the proposed token
    * @return whether the token is owned by a non-zero address
    */
    function exists(uint id) public view returns (bool) {
        return owners[id] != address(0);
    }

    /**
    * @param to : the address to which the token should be transferred
    * @param id : the index of the token to transfer
    */
    function transferFrom(address from, address to, uint id) public payable {
        
        require(to != address(0));
        require(to != address(this));

        // TODO: why is this necessary
        // if you're approved, why does it matter where it comes from?
        require(ownerOf(id) == from);

        require(isSenderApprovedFor(id));

        require(isTradable(cards[id].proto));

        _transfer(ownerOf(id), to, id);
    }

    /**
    * @param to : the address to which the tokens should be transferred
    * @param ids : the indices of the tokens to transfer
    */
    function transferAllFrom(address to, uint[] ids) public payable {
        for (uint i = 0; i < ids.length; i++) {
            transferFrom(address(0), to, ids[i]);
        }
    }

    /**
     * @return the number of cards which have been burned
     */
    function getBurnCount() public view returns (uint) {
        return burnCount;
    }

    function isApprovedForAll(address owner, address operator) public view returns (bool) {
        return operators[owner][operator];
    }

    function setApprovalForAll(address to, bool toApprove) public {
        require(to != msg.sender);
        operators[msg.sender][to] = toApprove;
        emit ApprovalForAll(msg.sender, to, toApprove);
    }

    bytes4 constant magic = bytes4(keccak256("onERC721Received(address,uint256,bytes)"));

    function safeTransferFrom(address from, address to, uint id, bytes data) public payable {
        require(to != address(0));
        transferFrom(from, to, id);
        if (_isContract(to)) {
            bytes4 response = ERC721TokenReceiver(to).onERC721Received.gas(50000)(from, id, data);
            require(response == magic);
        }
    }

    function safeTransferFrom(address from, address to, uint id) public payable {
        safeTransferFrom(from, to, id, "");
    }

    function _addToken(address to, uint id) private {
        uint pos = ownedTokens[to].push(uint40(id)) - 1;
        indices.push(uint24(pos));
    }

    function _removeToken(address from, uint id) public payable {
        uint24 index = indices[id];
        uint lastIndex = ownedTokens[from].length - 1;
        uint40 lastId = ownedTokens[from][lastIndex];

        ownedTokens[from][index] = lastId;
        ownedTokens[from][lastIndex] = 0;
        ownedTokens[from].length--;
    }

    function isSenderApprovedFor(uint256 id) internal view returns (bool) {
        return owns(msg.sender, id) || getApproved(id) == msg.sender || isApprovedForAll(ownerOf(id), msg.sender);
    }

    function _isContract(address test) internal view returns (bool) {
        uint size; 
        assembly {
            size := extcodesize(test)
        }
        return (size > 0);
    }

    function tokenURI(uint id) public view returns (string) {
        return uris[id];
    }
    
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 _tokenId){
        return ownedTokens[owner][index];
    }

    function tokenByIndex(uint256 index) external view returns (uint256){
        return index;
    }

    function supportsInterface(bytes4 interfaceID) public view returns (bool) {
        return (
            interfaceID == this.supportsInterface.selector || // ERC165
            interfaceID == 0x5b5e139f || // ERC721Metadata
            interfaceID == 0x6466353c || // ERC-721 on 3/7/2018
            interfaceID == 0x780e9d63
        ); // ERC721Enumerable
    }

    function implementsERC721() external pure returns (bool) {
        return true;
    }

    function getOwnedTokens(address user) public view returns (uint40[]) {
        return ownedTokens[user];
    }
    

}

/// @dev Note: the ERC-165 identifier for this interface is 0xf0b9e5ba
interface ERC721TokenReceiver {
    /// @notice Handle the receipt of an NFT
    /// @dev The ERC721 smart contract calls this function on the recipient
    ///  after a `transfer`. This function MAY throw to revert and reject the
    ///  transfer. This function MUST use 50,000 gas or less. Return of other
    ///  than the magic value MUST result in the transaction being reverted.
    ///  Note: the contract address is always the message sender.
    /// @param _from The sending address
    /// @param _tokenId The NFT identifier which is being transfered
    /// @param _data Additional data with no specified format
    /// @return `bytes4(keccak256("onERC721Received(address,uint256,bytes)"))`
    ///  unless throwing
	function onERC721Received(address _from, uint256 _tokenId, bytes _data) external returns(bytes4);
}



contract CardIntegration is CardOwnership {
    
    CardPack[] packs;

    event CardCreated(uint indexed id, uint16 proto, uint16 purity, address owner);

    function addPack(CardPack approved) public onlyGovernor {
        packs.push(approved);
    }

    modifier onlyApprovedPacks {
        require(_isApprovedPack());
        _;
    }

    function _isApprovedPack() private view returns (bool) {
        for (uint i = 0; i < packs.length; i++) {
            if (msg.sender == address(packs[i])) {
                return true;
            }
        }
        return false;
    }

    function createCard(address owner, uint16 proto, uint16 purity) public whenNotPaused onlyApprovedPacks returns (uint) {
        ProtoCard memory card = protos[proto];
        require(card.season == currentSeason);
        if (card.rarity == Rarity.Mythic) {
            uint64 limit;
            bool exists;
            (limit, exists) = getLimit(proto);
            require(!exists || limit > 0);
            limits[proto].limit--;
        }
        return _createCard(owner, proto, purity);
    }

    function _createCard(address owner, uint16 proto, uint16 purity) internal returns (uint) {
        Card memory card = Card({
            proto: proto,
            purity: purity
        });

        uint id = cards.push(card) - 1;

        _create(owner, id);
        
        emit CardCreated(id, proto, purity, owner);

        return id;
    }

    /*function combineCards(uint[] ids) public whenNotPaused {
        require(ids.length == 5);
        require(ownsAll(msg.sender, ids));
        Card memory first = cards[ids[0]];
        uint16 proto = first.proto;
        uint8 shine = _getShine(first.purity);
        require(shine < shineLimit);
        uint16 puritySum = first.purity - (shine * 1000);
        burn(ids[0]);
        for (uint i = 1; i < ids.length; i++) {
            Card memory next = cards[ids[i]];
            require(next.proto == proto);
            require(_getShine(next.purity) == shine);
            puritySum += (next.purity - (shine * 1000));
            burn(ids[i]);
        }
        uint16 newPurity = uint16(((shine + 1) * 1000) + (puritySum / ids.length));
        _createCard(msg.sender, proto, newPurity);
    }*/


    // PURITY NOTES
    // currently, we only
    // however, to protect rarity, you'll never be abl
    // this is enforced by the restriction in the create-card function
    // no cards above this point can be found in packs

    

}

contract CardPack {

    CardIntegration public integration;
    uint public creationBlock;

    constructor(CardIntegration _integration) public payable {
        integration = _integration;
        creationBlock = block.number;
    }

    event Referral(address indexed referrer, uint value, address purchaser);

    /**
    * purchase 'count' of this type of pack
    */
    function purchase(uint16 packCount, address referrer) public payable;

    // store purity and shine as one number to save users gas
    function _getPurity(uint16 randOne, uint16 randTwo) internal pure returns (uint16) {
        if (randOne >= 998) {
            return 3000 + randTwo;
        } else if (randOne >= 988) {
            return 2000 + randTwo;
        } else if (randOne >= 938) {
            return 1000 + randTwo;
        } else {
            return randTwo;
        }
    }

}

contract Ownable {

   address public owner;

   constructor() public {
       owner = msg.sender;
   }

   function setOwner(address _owner) public onlyOwner {
       owner = _owner;
   }

   modifier onlyOwner {
       require(msg.sender == owner);
       _;
   }

}

contract Vault is Ownable {

   function () public payable {

   }

   function getBalance() public view returns (uint) {
       return address(this).balance;
   }

   function withdraw(uint amount) public onlyOwner {
       require(address(this).balance >= amount);
       owner.transfer(amount);
   }

   function withdrawAll() public onlyOwner {
       withdraw(address(this).balance);
   }
}

contract CappedVault is Vault { 

    uint public limit;
    uint withdrawn = 0;

    constructor() public {
        limit = 33333 ether;
    }

    function () public payable {
        require(total() + msg.value <= limit);
    }

    function total() public view returns(uint) {
        return getBalance() + withdrawn;
    }

    function withdraw(uint amount) public onlyOwner {
        require(address(this).balance >= amount);
        owner.transfer(amount);
        withdrawn += amount;
    }

}


contract Pausable is Ownable {
    
    event Pause();
    event Unpause();

    bool public paused = false;


    /**
    * @dev Modifier to make a function callable only when the contract is not paused.
    */
    modifier whenNotPaused() {
        require(!paused);
        _;
    }

    /**
    * @dev Modifier to make a function callable only when the contract is paused.
    */
    modifier whenPaused() {
        require(paused);
        _;
    }

    /**
    * @dev called by the owner to pause, triggers stopped state
    */
    function pause() onlyOwner whenNotPaused public {
        paused = true;
        emit Pause();
    }

    /**
    * @dev called by the owner to unpause, returns to normal state
    */
    function unpause() onlyOwner whenPaused public {
        paused = false;
        emit Unpause();
    }
}

contract PresalePack is CardPack, Pausable {

    CappedVault public vault;

    Purchase[] purchases;

    struct Purchase {
        uint16 current;
        uint16 count;
        address user;
        uint randomness;
        uint64 commit;
    }

    event PacksPurchased(uint indexed id, address indexed user, uint16 count);
    event PackOpened(uint indexed id, uint16 startIndex, address indexed user, uint[] cardIDs);
    event RandomnessReceived(uint indexed id, address indexed user, uint16 count, uint randomness);

    constructor(CardIntegration integration, CappedVault _vault) public payable CardPack(integration) {
        vault = _vault;
    }

    function basePrice() public returns (uint);
    function getCardDetails(uint16 packIndex, uint8 cardIndex, uint result) public view returns (uint16 proto, uint16 purity);
    
    function packSize() public view returns (uint8) {
        return 5;
    }

    function packsPerClaim() public view returns (uint16) {
        return 15;
    }

    // start in bytes, length in bytes
    function extract(uint num, uint length, uint start) internal pure returns (uint) {
        return (((1 << (length * 8)) - 1) & (num >> ((start * 8) - 1)));
    }

    uint public purchaseCount;
    uint public totalCount;

    function purchase(uint16 packCount, address referrer) whenNotPaused public payable {

        require(packCount > 0);
        require(referrer != msg.sender);

        uint price = calculatePrice(basePrice(), packCount);

        require(msg.value >= price);

        Purchase memory p = Purchase({
            user: msg.sender,
            count: packCount,
            commit: uint64(block.number),
            randomness: 0,
            current: 0
        });

        uint id = purchases.push(p) - 1;

        emit PacksPurchased(id, msg.sender, packCount);

        if (referrer != address(0)) {
            uint commission = price / 10;
            referrer.transfer(commission);
            price -= commission;
            emit Referral(referrer, commission, msg.sender);
        }
        
        address(vault).transfer(price); 
    }

    // can be called by anybody
    function callback(uint id) public {

        Purchase storage p = purchases[id];

        require(p.randomness == 0);

        bytes32 bhash = blockhash(p.commit);

        uint random = uint(keccak256(abi.encodePacked(totalCount, bhash)));

        totalCount += p.count;

        if (uint(bhash) == 0) {
            // should never happen (must call within next 256 blocks)
            // if it does, just give them 1: will become common and therefore less valuable
            // set to 1 rather than 0 to avoid calling claim before randomness
            p.randomness = 1;
        } else {
            p.randomness = random;
        }

        emit RandomnessReceived(id, p.user, p.count, p.randomness);
    }

    

    function claim(uint id) public {
        
        Purchase storage p = purchases[id];

        require(canClaim);

        uint16 proto;
        uint16 purity;
        uint16 count = p.count;
        uint result = p.randomness;
        uint8 size = packSize();

        address user = p.user;
        uint16 current = p.current;

        require(result != 0); // have to wait for the callback
        // require(user == msg.sender); // not needed
        require(count > 0);

        uint[] memory ids = new uint[](size);

        uint16 end = current + packsPerClaim() > count ? count : current + packsPerClaim();

        require(end > current);

        for (uint16 i = current; i < end; i++) {
            for (uint8 j = 0; j < size; j++) {
                (proto, purity) = getCardDetails(i, j, result);
                ids[j] = integration.createCard(user, proto, purity);
            }
            emit PackOpened(id, (i * size), user, ids);
        }
        p.current += (end - current);
    }

    function predictPacks(uint id) external view returns (uint16[] protos, uint16[] purities) {

        Purchase memory p = purchases[id];

        uint16 proto;
        uint16 purity;
        uint16 count = p.count;
        uint result = p.randomness;
        uint8 size = packSize();

        purities = new uint16[](size * count);
        protos = new uint16[](size * count);

        for (uint16 i = 0; i < count; i++) {
            for (uint8 j = 0; j < size; j++) {
                (proto, purity) = getCardDetails(i, j, result);
                purities[(i * size) + j] = purity;
                protos[(i * size) + j] = proto;
            }
        }
        return (protos, purities);
    }

    function calculatePrice(uint base, uint16 packCount) public view returns (uint) {
        // roughly 6k blocks per day
        uint difference = block.number - creationBlock;
        uint numDays = difference / 6000;
        if (20 > numDays) {
            return (base - (((20 - numDays) * base) / 100)) * packCount;
        }
        return base * packCount;
    }

    function _getCommonPlusRarity(uint32 rand) internal pure returns (CardProto.Rarity) {
        if (rand == 999999) {
            return CardProto.Rarity.Mythic;
        } else if (rand >= 998345) {
            return CardProto.Rarity.Legendary;
        } else if (rand >= 986765) {
            return CardProto.Rarity.Epic;
        } else if (rand >= 924890) {
            return CardProto.Rarity.Rare;
        } else {
            return CardProto.Rarity.Common;
        }
    }

    function _getRarePlusRarity(uint32 rand) internal pure returns (CardProto.Rarity) {
        if (rand == 999999) {
            return CardProto.Rarity.Mythic;
        } else if (rand >= 981615) {
            return CardProto.Rarity.Legendary;
        } else if (rand >= 852940) {
            return CardProto.Rarity.Epic;
        } else {
            return CardProto.Rarity.Rare;
        } 
    }

    function _getEpicPlusRarity(uint32 rand) internal pure returns (CardProto.Rarity) {
        if (rand == 999999) {
            return CardProto.Rarity.Mythic;
        } else if (rand >= 981615) {
            return CardProto.Rarity.Legendary;
        } else {
            return CardProto.Rarity.Epic;
        }
    }

    function _getLegendaryPlusRarity(uint32 rand) internal pure returns (CardProto.Rarity) {
        if (rand == 999999) {
            return CardProto.Rarity.Mythic;
        } else {
            return CardProto.Rarity.Legendary;
        } 
    }

    bool public canClaim = true;

    function setCanClaim(bool claim) public onlyOwner {
        canClaim = claim;
    }

    function getComponents(
        uint16 i, uint8 j, uint rand
    ) internal returns (
        uint random, uint32 rarityRandom, uint16 purityOne, uint16 purityTwo, uint16 protoRandom
    ) {
        random = uint(keccak256(abi.encodePacked(i, rand, j)));
        rarityRandom = uint32(extract(random, 4, 10) % 1000000);
        purityOne = uint16(extract(random, 2, 4) % 1000);
        purityTwo = uint16(extract(random, 2, 6) % 1000);
        protoRandom = uint16(extract(random, 2, 8) % (2**16-1));
        return (random, rarityRandom, purityOne, purityTwo, protoRandom);
    }

    function withdraw() public onlyOwner {
        owner.transfer(address(this).balance);
    }

}

contract ERC20 {

    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);
    
    function allowance(address owner, address spender) public view returns (uint256);
    
    function transferFrom(address from, address to, uint256 value) public returns (bool);

    function approve(address spender, uint256 value) public returns (bool);

    function totalSupply() public view returns (uint256);

    function balanceOf(address who) public view returns (uint256);
    
    function transfer(address to, uint256 value) public returns (bool);
    
  
}

pragma solidity 0.4.24;

// from OZ

/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {

  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    // Gas optimization: this is cheaper than asserting 'a' not being zero, but the
    // benefit is lost if 'b' is also tested.
    // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
    if (a == 0) {
      return 0;
    }

    c = a * b;
    assert(c / a == b);
    return c;
  }

  /**
  * @dev Integer division of two numbers, truncating the quotient.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    // uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return a / b;
  }

  /**
  * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  /**
  * @dev Adds two numbers, throws on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
    c = a + b;
    assert(c >= a);
    return c;
  }
}

contract TournamentPass is ERC20, Ownable {

    using SafeMath for uint256;

    Vault vault;

    constructor(Vault _vault) public {
        vault = _vault;
    }

    mapping(address => uint256) balances;
    mapping (address => mapping (address => uint256)) internal allowed;
    address[] public minters;
    uint256 supply;
    uint mintLimit = 20000;
    
    function name() public view returns (string){
        return "GU Tournament Passes";
    }

    function symbol() public view returns (string) {
        return "PASS";
    }

    function addMinter(address minter) public onlyOwner {
        minters.push(minter);
    }

    function totalSupply() public view returns (uint256) {
        return supply;
    }

    function transfer(address _to, uint256 _value) public returns (bool) {
        require(_to != address(0));
        require(_value <= balances[msg.sender]);

        balances[msg.sender] = balances[msg.sender].sub(_value);
        balances[_to] = balances[_to].add(_value);
        emit Transfer(msg.sender, _to, _value);
        return true;
    }

    function balanceOf(address _owner) public view returns (uint256) {
        return balances[_owner];
    }

    function isMinter(address test) internal view returns (bool) {
        for (uint i = 0; i < minters.length; i++) {
            if (minters[i] == test) {
                return true;
            }
        }
        return false;
    }

    function mint(address to, uint amount) public returns (bool) {
        require(isMinter(msg.sender));
        if (amount.add(supply) > mintLimit) {
            return false;
        } 
        supply = supply.add(amount);
        balances[to] = balances[to].add(amount);
        emit Transfer(address(0), to, amount);
        return true;
    }

    function approve(address _spender, uint256 _value) public returns (bool) {
        allowed[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
        require(_to != address(0));
        require(_value <= balances[_from]);
        require(_value <= allowed[_from][msg.sender]);

        balances[_from] = balances[_from].sub(_value);
        balances[_to] = balances[_to].add(_value);
        allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
        emit Transfer(_from, _to, _value);
        return true;
    }

    function increaseApproval(address spender, uint256 addedValue) public returns (bool) {
        allowed[msg.sender][spender] = allowed[msg.sender][spender].add(addedValue);
        emit Approval(msg.sender, spender, allowed[msg.sender][spender]);
        return true;
    }

    function decreaseApproval(address spender, uint256 subtractedValue) public returns (bool) {
        uint256 oldValue = allowed[msg.sender][spender];
        if (subtractedValue > oldValue) {
            allowed[msg.sender][spender] = 0;
        } else {
            allowed[msg.sender][spender] = oldValue.sub(subtractedValue);
        }
        emit Approval(msg.sender, spender, allowed[msg.sender][spender]);
        return true;
    }

    function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
        return allowed[_owner][_spender];
    }

    uint public price = 250 finney;

    function purchase(uint amount) public payable {
        
        require(msg.value >= price.mul(amount));
        require(supply.add(amount) <= mintLimit);

        supply = supply.add(amount);
        balances[msg.sender] = balances[msg.sender].add(amount);
        emit Transfer(address(0), msg.sender, amount);

        address(vault).transfer(msg.value);
    }

}

contract LegendaryPack is PresalePack {

    TournamentPass pass;

    constructor(CardIntegration integration, CappedVault _vault, TournamentPass _pass) public payable PresalePack(integration, _vault) {
        pass = _pass;
    }

    function purchase(uint16 packCount, address referrer) public payable {
        super.purchase(packCount, referrer);
        pass.mint(msg.sender, packCount);
    }

    function basePrice() public returns (uint) {
        return 450 finney;
    }

    function getCardDetails(uint16 packIndex, uint8 cardIndex, uint result) public view returns (uint16 proto, uint16 purity) {
        uint random;
        uint32 rarityRandom;
        uint16 protoRandom;
        uint16 purityOne;
        uint16 purityTwo;

        CardProto.Rarity rarity;

        (random, rarityRandom, purityOne, purityTwo, protoRandom) = getComponents(packIndex, cardIndex, result);

        if (cardIndex == 4) {
            rarity = _getLegendaryPlusRarity(rarityRandom);
        } else if (cardIndex == 3) {
            rarity = _getRarePlusRarity(rarityRandom);
        } else {
            rarity = _getCommonPlusRarity(rarityRandom);
        }

        purity = _getPurity(purityOne, purityTwo);
    
        proto = integration.getRandomCard(rarity, protoRandom);

        return (proto, purity);
    } 
    
}

Contract Security Audit

Contract ABI

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000512fbd15bde6570ff09e4438af27ede60402451500000000000000000000000091b9d2835ad914bc1dcfe09bd1816febd04fd68900000000000000000000000022365168c8705e95b2d08876c23a8c13e3ad72e2

-----Decoded View---------------
Arg [0] : integration (address): 0x512fbd15bde6570ff09e4438af27ede604024515
Arg [1] : _vault (address): 0x91b9d2835ad914bc1dcfe09bd1816febd04fd689
Arg [2] : _pass (address): 0x22365168c8705e95b2d08876c23a8c13e3ad72e2

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000512fbd15bde6570ff09e4438af27ede604024515
Arg [1] : 00000000000000000000000091b9d2835ad914bc1dcfe09bd1816febd04fd689
Arg [2] : 00000000000000000000000022365168c8705e95b2d08876c23a8c13e3ad72e2


Swarm Source

bzzr://0b7f7fba114e576fd1b98fb2b3504b141d633be2347d85daa7a8483440e93051
Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.