node-haxball/examples/other/compareStates.js

The most powerful and lightweight API that allows you to develop your original Haxball(www.haxball.com) host, client, and standalone applications both on node.js and browser environments and also includes every possible hack and functionality that you can

function compareStates(s1, s2){
  var checkNumber = (a,b) => ((a===b) || (isNaN(a) && isNaN(b)));
  var checkPoint = (a,b) => (checkNumber(a.x, b.x) && checkNumber(a.y, b.y))
  var checkTeam = (a,b) => (a?.id==b?.id);
  var checkDiscPlayerId = (a,b) => (a?.playerId==b?.playerId);
  var checkStadium = (a,b) => (a?.calculateChecksum()==b?.calculateChecksum());
  var checkOther = (a,b) => (a==b);
  const keysToCheck = {
    "name": checkOther,
    "teamsLocked": checkOther,
    "scoreLimit": checkNumber, 
    "timeLimit": checkNumber, 
    "kickRate_max": checkNumber,
    "kickRate_rate": checkNumber,
    "kickRate_min": checkNumber,
    "stadium": checkStadium, 
    "gameState": {
      "blueScore": checkNumber, 
      "redScore": checkNumber, 
      "state": checkNumber, 
      "timeElapsed": checkNumber, 
      "timeLimit": checkNumber, 
      "scoreLimit": checkNumber, 
      "stadium": checkStadium, 
      "goalTickCounter": checkNumber, 
      "pauseGameTickCounter": checkNumber, 
      "goalConcedingTeam": checkTeam,
      "physicsState": {
        "discs": [{
          "pos": checkPoint, 
          "speed": checkPoint, 
          "gravity": checkPoint, 
          "radius": checkNumber, 
          "damping": checkNumber, 
          "invMass": checkNumber, 
          "bCoef": checkNumber, 
          "cGroup": checkNumber, 
          "cMask": checkNumber, 
          "color": checkNumber
        }]
      }
    },
    "players": [{
      "isAdmin": checkOther, 
      "avatarNumber": checkNumber,
      "avatar": checkOther, 
      "headlessAvatar": checkOther, 
      "sync": checkOther, 
      "flag": checkOther,
      "name": checkOther,
      "input": checkNumber, 
      "id": checkNumber, 
      "isKicking": checkOther, 
      "kickRateMaxTickCounter": checkNumber,
      "kickRateMinTickCounter": checkNumber,
      "team": checkTeam,
      "disc": checkDiscPlayerId
    }],
    "teamColors": [{
      "angle": checkNumber,
      "text": checkNumber,
      "inner": [checkNumber]
    }]
  };
  function compare(obj1, obj2, keysObj, stack, result){
    if (typeof keysObj=="function"){
      if (!keysObj(obj1, obj2))
        result.push(JSON.parse(JSON.stringify(stack)));
    }
    else if (typeof keysObj=="object"){
      if (keysObj.constructor.name=="Array"){
        keysObj = keysObj[0];
        if (!checkNumber(obj1.length, obj2.length)){
          stack.push("length");
          result.push(JSON.parse(JSON.stringify(stack)));
          stack.pop();
        }
        for (var i=0;i<obj1.length;i++){
          stack.push(i);
          var o1 = obj1[i], o2 = obj2[i];
          if (o1==null || o2==null){
            if (o1!=o2)
              result.push(JSON.parse(JSON.stringify(stack)));
          }
          else{
            if (typeof keysObj=="function"){
              if (!keysObj(o1, o2))
                result.push(JSON.parse(JSON.stringify(stack)));
            }
            else if (typeof keysObj=="object")
              Object.keys(keysObj).forEach((key)=>{
                stack.push(key);
                compare(o1[key], o2[key], keysObj[key], stack, result);
                stack.pop();
              });
          }
          stack.pop();
        }
      }
      else{
        if (obj1==null || obj2==null){
          if (obj1!=obj2)
            result.push(JSON.parse(JSON.stringify(stack)));
          return;
        }
        Object.keys(keysObj).forEach((key)=>{
          stack.push(key);
          compare(obj1[key], obj2[key], keysObj[key], stack, result);
          stack.pop();
        });
      }
    }
  }
  function stringifyResult(res){
    var o1 = s1, o2 = s2, str = "";
    for(var name of res){
      o1 = o1[name];
      o2 = o2[name];
      if (typeof name=="number")
        str+="["+name+"]";
      else
        str+="."+name;
    }
    return "state1"+str+"="+o1+" vs state2"+str+"="+o2;
  }
  var result = [];
  compare(s1, s2, keysToCheck, [], result);
  for (var i=0;i<result.length;i++)
    result[i] = stringifyResult(result[i]);
  console.log("compareStates results: ", result.join("\r\n"));
}