BuddyPercent.user.js

// ==UserScript==
// @name          Teammate Win Percents
// @author        Ephew
// @version       0.1
// @include       http://*.koalabeast.com:*
// @include       http://tagpro-*.koalabeast.com*
// @grant         GM_setValue
// @grant         GM_getValue
// ==/UserScript==

tagpro.ready(function() {

    if (tagpro.state) {  // make sure were actually in a game

            /*
               Get the stats table
            */
            var statsTable = document.getElementById("stats");
            /*
               Insert new header
            */
            var tableHeader = statsTable.tHead;                // get header of table
            var firstTr = tableHeader.rows[0];                 // get first table row of header
            var numberCellsInRow = firstTr.cells.length;       // get number of children that row has
            var newHeader = document.createElement("th");      // create a header cell element
            newHeader.innerText = "Buddy %";                   // set text of new cell      
            firstTr.insertBefore(newHeader, firstTr.cells[numberCellsInRow - 1]) // add new cell

            /*
               Insert data
            */
            var tableBody = statsTable.tBodies[0];
            var rows = tableBody.rows; // array containing rows of table body (1 for each player)

            // This code will get ran every time the table updates (about once per second when table is open)
            // We need this because tagpro re-renders the table every second or so to reflect each players updated stats
            // So we need to add our Buddy % cell for each row every time it updates.
            tagpro.events.register({
                modifyScoreUI: function() {
                    for (var i = 0; i < rows.length; i++) {                                // loop through every row of table body
                        var currentRow = rows[i];                                          // get current row (at i'th index)
                        var numberOfCellsInRow = currentRow.cells.length;                  // get number of cells in that row
                        var firstChild = currentRow.cells[0];                              // cell of row with player's name
                        var nameSpan = firstChild.getElementsByClassName("scoreName")[0];  // part of cell that holds player's name
                        var name = nameSpan.innerText;                                     // extract player's name from cell
                        if (!name) {                                                       // make sure name is actually there
                            continue;                                                      // if name is not there, go to next iteration of loop
                        }
                        var playerData = GM_getValue(name, '{"totalGames": 0, "wins": 0}');// get data stored for that player
                        var formattedData = JSON.parse(playerData);
                        var gamesPlayed = formattedData["totalGames"];
                        var winsWithPlayer = formattedData["wins"];
                        var winPercent = winsWithPlayer / gamesPlayed * 100;               // calculate win percent for that player
                        if (gamesPlayed == 0) {
                            winPercent = "N/A";
                        }
                        var newCell = currentRow.insertCell(numberOfCellsInRow - 1);       // insert a new cell inside of the current row
                        newCell.innerText = Math.round(winPercent * 100) / 100;   // set cell's text, rounding to nearest .01                                 // set inner text of new cell
                    }
                }
            })

            /*
               Wait for game to end, set data once it does
            */
            if (tagpro.socket) {
                tagpro.socket.on('end', function(e) {
                    if (!tagpro.spectator) {
                        var me = tagpro.players[tagpro.playerId];     // me (tagpro.playerId is my id)
                        var myTeam = me.team;                         // get my team number (1=red, 2=blue)

                        /*
                          Get all players on my team
                        */
                        var players = tagpro.players;
                        var playersOnOurTeam = [];
                        for (var playerId in players) {                // loop through each player
                            if (playerId != tagpro.playerId) {         // check so we dont add ourselves to playersOnOurTeam
                                var playerData = players[playerId];    // get that player's data
                                var playerTeam = playerData.team;
                                if (playerTeam == myTeam) {            // check if player is on our team
                                    playersOnOurTeam.push(playerData); // add player's data to our team array
                                }
                            }
                        }

                        /*
                          Check if I won
                        */
                        var winner = e.winner;
                        var didWin = false;
                        // if red won, and my team is the red team, or if blue won and my team is the blue team, we won
                        if ((winner == 'red' && myTeam == 1) || (winner == 'blue' && myTeam == 2)) {
                            didWin = true;
                        }

                        /*
                          Loop through all players on my team
                        */
                        for (var i = 0; i < playersOnOurTeam.length; i++) {
                            var player = playersOnOurTeam[i];
                            // values are stored as an object (same thing is dictionary in python)
                            // format of data is dictionary["personsName"] = {"totalGames": 0, "wins": 0}
                            var pastData = GM_getValue(player.name, '{"totalGames": 0, "wins": 0}');
                            var formattedData = JSON.parse(pastData);      // Need to format data correctly
                            var gamesPlayed = formattedData["totalGames"];
                            var winsWithPlayer = formattedData["wins"];
                            if (didWin) { // if we won, then increment the number of wins we've won with the player
                                winsWithPlayer++;
                            }
                            // this is the object that we will store
                            dataToStore = {
                                "totalGames": gamesPlayed + 1,
                                "wins": winsWithPlayer
                            };
                            // save data
                            GM_setValue(player.name, JSON.stringify(dataToStore));  // JSON.stringify encodes the data in a way that it can be stored
                        }


                    }
                });
            }
    }
});