pragma solidity ^0.8.9;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";

contract CatBreeder is ERC721 {

// Cat struct

struct Cat {

string name;

uint price;

string breed;

bool isMale;

}

uint256 public totalSupply;

uint256 public _id = 0;

constructor(string memory _name, string memory _symbol)

ERC721(_name, _symbol){}

// Mapping from Cat ID to Cat struct

mapping(uint => Cat) public Cats;

// Create a mapping to store the cats

//mapping(string => Cat) public catName;

// Array of all Cat IDs

uint[] public CatIds;

// Counter for Cat ID

//uint public _id = 0;

function createCats(string[] memory nameOfmale, string[] memory nameOfFemale ) public {

// Create 10 Cats with 5 male and 5 female Cats

for (uint i = 0; i < 5; i++) {

totalSupply++;

_id++;

Cats[_id] = Cat(nameOfmale[i], 1 ether, "Mixed", true);

CatIds.push(_id);

_safeMint(msg.sender, _id);

}

for (uint i = 0; i < 5; i++) {

totalSupply++;

_id++;

Cats[_id] = Cat(nameOfFemale[i], 1 ether, "Mixed", false);

CatIds.push(_id);

_safeMint(msg.sender, _id);

}

}

// Buy a Cat

function buyCat(uint _CatId, uint _price) public payable {

// Check that the Cat is for sale

require(Cats[_CatId].price > 0, "Cat is not for sale");

// Check that the player has enough balance

require(msg.value >= _price, "Insufficient balance");

Cats[_CatId].price = msg.value;

address payable buyerOfKit = payable(msg.sender);

// Transfer the Cat's price to the contract owner

buyerOfKit.transfer(_price);

// Set the Cat's price to 0 to indicate that it has been sold

Cats[_CatId].price = 0;

}

// Breed two Cats to create a new Cat

function breedCats(uint _CatId1, uint _CatId2, string memory _name, uint _price) public {

// Check that both Cats are owned by the player

require(Cats[_CatId1].price == 0, "Cat is not owned by player");

require(Cats[_CatId2].price == 0, "Cat is not owned by player");

// Check that one Cat is male and the other is female

require(Cats[_CatId1].isMale != Cats[_CatId2].isMale, "Cats must be male and female");

// Generate a random number between 0 and 1 to determine the gender of the new Cat

//bool randomNumber = random();

bool isMale = random();

// Create a new Cat and add it to the mapping

_id++;

Cats[_id] = Cat(_name, _price, "Mixed", isMale);

// Add the new Cat's ID to the array of all Cat IDs

CatIds.push(_id);

}

function breedMoreCats(uint _CatId1, uint _CatId2, string memory _name, uint _price) public {

// Check that both Cats are owned by the player

require(Cats[_CatId1].price == 0, "Cat is not owned by player");

require(Cats[_CatId2].price == 0, "Cat is not owned by player");

// Check that one Cat is male and the other is female

require(Cats[_CatId1].isMale != Cats[_CatId2].isMale, "Cats must be male and female");

// Generate a random number between 1 and 5 to determine the number of children to breed

uint numChildren = generateRandomNumber();

for (uint i = 0; i < numChildren; i++) {

// Generate a random number between 0 and 1 to determine the gender of the new Cat

bool isMale = random();

// Create a new Cat and add it to the mapping

_id++;

Cats[_id] = Cat(_name, _price, "Mixed", isMale);

// Add the new Cat's ID to the array of all Cat IDs

CatIds.push(_id);

}

}

function MultipleCatsBreeding(uint[] memory _CatIds, string memory _name, uint _price) public {

//Players Can breed Multiple Cats

// Check that all of the Cats are owned by the player

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

require(Cats[_CatIds[i]].price == 0, "Cat is not owned by player");

}

// Create New Breeds

// Generate a random number between 0 and 1 to determine the gender of the new Cat

bool isMale = random();

// Create a new Cat and add it to the mapping

_id++;

Cats[_id] = Cat(_name, _price, "Mixed", isMale);

// Add the new Cat's ID to the array of all Cat IDs

CatIds.push(_id);

}

// Sell a Cat

function sellCat(uint _CatId, uint _price) public {

// Check that the Cat is owned by the player

require(Cats[_CatId].price == 0, "Cat is not owned by player");

// Set the Cat's price to the sale price

Cats[_CatId].price = _price;

}

// Generate a random number between 0 and 1

function random() private view returns (bool) {

return (uint256(keccak256(abi.encodePacked(block.timestamp, this))) & 1) == 1;

}

function generateRandomNumber() public view returns (uint) {

return (uint(keccak256(abi.encodePacked(block.timestamp))) % 6) + 1;

}

}