# Count.sol

By [piyo.eth](https://paragraph.com/@piyo) · 2022-05-10

---

    pragma solidity ^0.5.1;
    
    contract Count {
        address payable owner;
        uint public count;
        event DidCountUp(uint currentCount, address sender);
        event DidCountDown(uint currentCount, address sender);
        event DidAddValue(uint currentCount, uint value, address sender);
        event DidSubValue(uint currentCount, uint value, address sender);
        
        constructor ()
            public
        {
            owner = msg.sender;
        }
        
        function getCount()
            public
            view
            returns(uint)
        {
            return count;
        }
        
        function countUp()
            public
        {
            count += 1;
            emit DidCountUp(count, msg.sender);
        }
        
        function countDown()
            public
        {
            count -= 1;
            emit DidCountDown(count, msg.sender);
        }
        
        function addCount(uint val) 
            public
        {
            count += val;
            emit DidAddValue(count, val, msg.sender);
        }
        
        function subCount(uint val)
            public
        {
            count -= val;
            emit DidSubValue(count, val, msg.sender);
        }
        
        function destroy() 
            public
        {
            require(msg.sender == owner);
            selfdestruct(owner);
        }
    
    }

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*Originally published on [piyo.eth](https://paragraph.com/@piyo/count-sol)*