Create Pausable.sol

genesis-smart-contracts/Pausable.sol

@@ -0,0 +1,29 @@
+// genesis-smart-contracts/Pausable.sol
+pragma solidity ^0.8.0;
+
+contract Pausable {
+    bool public paused;
+
+    modifier whenNotPaused() {
+        require(!paused, "Contract is paused");
+        _;
+    }
+
+    modifier whenPaused() {
+        require(paused, "Contract is not paused");
+        _;
+    }
+
+    function pause() public onlyOwner {
+        paused = true;
+        emit Pause();
+    }
+
+    function unpause() public onlyOwner {
+        paused = false;
+        emit Unpause();
+    }
+
+    event Pause();
+    event Unpause();
+}