add func to get BOOMR mint amount, simplify sendBombs

src/Main.sol

@@ -152,6 +152,13 @@ contract Main is Owned {
         return unaboomer.balanceOf(_address);
     }
 
+    /// Get BOOMR amount minted (including ones that have been burned/killed)
+    /// @param _address Wallet address to query the amount of BOOMR token minted
+    /// @return balance Amount of BOOMR tokens that have been minted by _address
+    function unaboomersMinted(address _address) public view returns (uint256) {
+        return unaboomer.tokensMintedByWallet(_address);
+    }
+
     /// Get BOOMR token total supply
     /// @return supply Amount of BOOMR tokens minted in total
     function unaboomersRadicalized() public view returns (uint256) {
@@ -229,21 +236,18 @@ contract Main is Owned {
     function sendBombs(uint256 _amount) external missionNotCompleted {
         // Ensure _amount will not exceed wallet balance of bombs, Unaboomer supply, and active Unaboomers
         uint256 supply = unaboomersRadicalized();
-        uint256 killed = unaboomersKilled();
         require(_amount <= bombBalance(msg.sender), "not enough bombs");
-        require(_amount <= supply, "not enough supply");
-        require(_amount <= supply - killed, "not enough active boomers");
         for (uint256 i; i < _amount; i++) {
             // Pick a pseudo-random Unaboomer token - imperfectly derives token IDs so that repeats are probable
-            uint256 randomBoomer = (uint256(keccak256(abi.encodePacked(i, _amount, killed, block.timestamp, msg.sender))) % supply) + 1;
+            uint256 randomBoomer = (uint256(keccak256(abi.encodePacked(i, block.timestamp, msg.sender))) % supply) + 1;
             // Capture owner
             address _owner = unaboomer.ownerOf(randomBoomer);
             // Check if it was already killed
             bool dud = _owner == address(0);
+            // Check if the sender owns it (misfired, killed own pfp)
+            bool senderOwned = msg.sender == _owner;
             // Kill it (does nothing if already toggled as dead)
             unaboomer.die(randomBoomer);
-            // Check if the sender owns it (misfired, kills own pfp)
-            bool senderOwned = msg.sender == _owner;
             // Emit event for displaying in web app
             emit SentBomb(msg.sender, randomBoomer, !dud, senderOwned);
             // Increment kill count if successfully killed another player's Unaboomer