This function doesn't work properly

[guguxh]

function randomizePlayers(){ let thisPlayers = room.getPlayerList(); let names = []; for (const player of thisPlayers) { names.push(player.name); } let random = Math.floor(Math.random() * names.length); playerList[names[random - 1]].isGirl = true; // Here I get error when game start, cant define properties of 'undefined'. room.sendAnnouncement(names[random - 1] + " é a garota da vez!!", 0xff0000, "bold"); let ran2; do{ ran2 = Math.floor(Math.random() * names.length); }while(ran2 == ids[random]); playerList[names[ran2 - 1]].isYourTurn = true; room.sendAnnouncement(names[ran2 - 1] + " começará dando a cantada!", 0xff0000, "bold"); }

[hbenormous]

function randomizePlayers(){ let thisPlayers = room.getPlayerList(); let names = []; for (const player of thisPlayers) { names.push(player.name); } let random = Math.floor(Math.random() * names.length); playerList[names[random - 1]].isGirl = true; // Here I get error when game start, cant define properties of 'undefined'. room.sendAnnouncement(names[random - 1] + " é a garota da vez!!", 0xff0000, "bold"); let ran2; do{ ran2 = Math.floor(Math.random() * names.length); }while(ran2 == ids[random]); playerList[names[ran2 - 1]].isYourTurn = true; room.sendAnnouncement(names[ran2 - 1] + " começará dando a cantada!", 0xff0000, "bold"); }

room.sendAnnouncement(message, forWhom, color, style, sound); https://github.com/haxball/haxball-issues/wiki/Headless-Host#sendannouncement

[guguxh]

function randomizePlayers(){ let thisPlayers = room.getPlayerList(); let names = []; for (const player of thisPlayers) { names.push(player.name); } let random = Math.floor(Math.random() * names.length); playerList[names[random - 1]].isGirl = true; // Here I get error when game start, cant define properties of 'undefined'. room.sendAnnouncement(names[random - 1] + " é a garota da vez!!", 0xff0000, "bold"); let ran2; do{ ran2 = Math.floor(Math.random() * names.length); }while(ran2 == ids[random]); playerList[names[ran2 - 1]].isYourTurn = true; room.sendAnnouncement(names[ran2 - 1] + " começará dando a cantada!", 0xff0000, "bold"); }

room.sendAnnouncement(message, forWhom, color, style, sound); https://github.com/haxball/haxball-issues/wiki/Headless-Host#sendannouncement

Isn't the problem, the problem is when I try to assign true bool to the isGirl key in playerList object.

[Skarmunds]

I renamed playerList to thisPlayers in function. Also headless getPlayerList() is an array of objects inside. Maybe your playerList is different. You can't substract -1 from random because for one player it gives -1 index. You can't avoid any arguments between Headless API calls. It chooses your color value in targetID which is player ID. Here working it sends a message. I don't know where in your code is ids or playerList defined.

function randomizePlayers() { 
    let thisPlayers = room.getPlayerList();
    let names = []; 
    for (const player of thisPlayers) { 
        names.push(player.name); 
    } 
    let random = Math.floor(Math.random() * names.length);
    // Renamed to thisPlayers, also it uses just random
    thisPlayers[random].isGirl = true;
    // Here we set 2nd argument to null or undefined, the rest follows correct order.
    // https://github.com/haxball/haxball-issues/wiki/Headless-Host#sendannouncement
    // sendAnnouncement(msg:String, targetId?:Int, color?:Int, style?:String, sound?:Int) 
    room.sendAnnouncement(names[random] + " é a garota da vez!!",null,0xff0000, "bold");
}

// Simple command test
room.onPlayerChat = (player, message) => {
    if (message == "!girl") {
        randomizePlayers();
    }
}

[guguxh]

I renamed playerList to thisPlayers in function. Also headless getPlayerList() is an array of objects inside. Maybe your playerList is different. You can't substract -1 from random because for one player it gives -1 index. You can't avoid any arguments between Headless API calls. It chooses your color value in targetID which is player ID. Here working it sends a message. I don't know where in your code is ids or playerList defined.

function randomizePlayers() { 
  let thisPlayers = room.getPlayerList();
  let names = []; 
  for (const player of thisPlayers) { 
      names.push(player.name); 
  } 
  let random = Math.floor(Math.random() * names.length);
  // Renamed to thisPlayers, also it uses just random
  thisPlayers[random].isGirl = true;
  // Here we set 2nd argument to null or undefined, the rest follows correct order.
  // https://github.com/haxball/haxball-issues/wiki/Headless-Host#sendannouncement
  // sendAnnouncement(msg:String, targetId?:Int, color?:Int, style?:String, sound?:Int) 
  room.sendAnnouncement(names[random] + " é a garota da vez!!",null,0xff0000, "bold");
}

// Simple command test
room.onPlayerChat = (player, message) => {
  if (message == "!girl") {
      randomizePlayers();
  }
}

I get it about the sendAnnounce, thanks, but I think the playerList isn't the real problem, because this is an object who, when player enter on room, this store informations about he like auth, conn, and isGirl property.

[Skarmunds]

Ok, then could be your random - 1. Because for one player in test it's playerList[names[-1]], names[-1].