feat: allow bots to be added into the game even if no default spawn points (ref #511)

src/config.cpp

@@ -651,6 +651,7 @@ void BotConfig::loadCustomConfig () {
 
    m_custom["C4ModelName"] = "c4.mdl";
    m_custom["AMXParachuteCvar"] = "sv_parachute";
+   m_custom["CustomCSDMSpawnPoint"] = "view_spawn";
 
    // custom initialization
    if (openConfig ("custom", "Custom config file not found. Loading defaults.", &file)) {

src/engine.cpp

@@ -1054,6 +1054,10 @@ void Game::searchEntities (const Vector &position, float radius, EntitySearch fu
    }
 }
 
+bool Game::hasEntityInGame (StringRef classname) {
+   return !isNullEntity (engfuncs.pfnFindEntityByString (nullptr, "classname", classname.chars ()));
+}
+
 void Game::printBotVersion () {
    String gameVersionStr;
    StringArray botRuntimeFlags;

src/manager.cpp

@@ -441,7 +441,12 @@ void BotManager::maintainQuota () {
    else {
       desiredBotCount = cr::min <int> (desiredBotCount, maxClients - humanPlayersInGame);
    }
-   int maxSpawnCount = game.getSpawnCount (Team::Terrorist) + game.getSpawnCount (Team::CT) - humanPlayersInGame;
+   auto maxSpawnCount = game.getSpawnCount (Team::Terrorist) + game.getSpawnCount (Team::CT) - humanPlayersInGame;
+
+   // if has some custom spawn points, max out spawn point counter
+   if (desiredBotCount > botsInGame && hasCustomCSDMSpawnEntities ()) {
+      maxSpawnCount = game.maxClients () + 1;
+   }
 
    // sent message only to console from here
    ctrl.setFromConsole (true);
@@ -760,6 +765,16 @@ bool BotManager::kickRandom (bool decQuota, Team fromTeam) {
    return false;
 }
 
+bool BotManager::hasCustomCSDMSpawnEntities () {
+   if (!game.is (GameFlags::CSDM | GameFlags::FreeForAll)) {
+      return false;
+   }
+   auto customSpawnClass = conf.fetchCustom ("CustomCSDMSpawnPoint");
+
+   // check for custom entity
+   return game.hasEntityInGame (customSpawnClass);
+}
+
 void BotManager::setLastWinner (int winner) {
    m_lastWinner = winner;
    m_roundOver = true;