Command line parameters to assign keyboard or gamepad with the -N or -R option (#5230)

Authored-by: Tej A. Shah (DesiOtaku)

Author: DesiOtaku

src/config/user_config.hpp

@@ -834,6 +834,10 @@ namespace UserConfigParams
 
     PARAM_PREFIX bool m_race_now          PARAM_DEFAULT( false );
 
+    PARAM_PREFIX int m_default_keyboard   PARAM_DEFAULT( -1 );
+
+    PARAM_PREFIX int m_default_gamepad    PARAM_DEFAULT( -1 );
+
     PARAM_PREFIX bool m_enforce_current_player PARAM_DEFAULT( false );
 
     PARAM_PREFIX bool m_enable_sound PARAM_DEFAULT( true );

src/main.cpp

@@ -516,10 +516,21 @@ void setupRaceStart()
 
     InputDevice *device;
 
-    // Use keyboard 0 by default in --no-start-screen
-    device = input_manager->getDeviceManager()->getKeyboard(0);
+    // Assign the player a device; check the command line params for preferences; by default use keyboard 0
 
-    // Create player and associate player with keyboard
+    if(UserConfigParams::m_default_keyboard > -1) {
+        device = input_manager->getDeviceManager()->getKeyboard(UserConfigParams::m_default_keyboard);
+    }
+    else if(UserConfigParams::m_default_gamepad > -1) {
+        // getGamePad(int) returns a GamePadDevice which is a subclass of InputDevice
+        // However, the compiler doesn't like it so it has to be manually casted in
+        device = (InputDevice *) input_manager->getDeviceManager()->getGamePad(UserConfigParams::m_default_gamepad);
+    }
+    else {
+        device = input_manager->getDeviceManager()->getKeyboard(0);
+    }
+
+    // Create player and associate player with device
     StateManager::get()->createActivePlayer(
         PlayerManager::get()->getPlayer(0), device);
 
@@ -557,10 +568,14 @@ void cmdLineHelp()
                               "menu.\n"
     "  -R,  --race-now         Same as -N but also skip the ready-set-go phase"
                               " and the music.\n"
+    "       --use-keyboard=N   Used in conjunction with the -N or -R option, will assign the player to the specified"
+                              " keyboard. Is zero indexed.\n"
+    "       --use-gamepad=N    Used in conjunction with the -N or -R option, will assign the player to the specified"
+                              " gamepad. Is zero indexed.\n"
     "  -t,  --track=NAME       Start track NAME.\n"
     "       --gp=NAME          Start the specified Grand Prix.\n"
-    "       --add-gp-dir=DIR   Load Grand Prix files in DIR. Setting will be saved\n"
-                              "in config.xml under additional_gp_directory. Use\n"
+    "       --add-gp-dir=DIR   Load Grand Prix files in DIR. Setting will be saved"
+                              "in config.xml under additional_gp_directory. Use"
                               "--add-gp-dir=\"\" to unset.\n"
     "       --stk-config=FILE  use ./data/FILE instead of "
                               "./data/stk_config.xml\n"
@@ -1675,6 +1690,14 @@ int handleCmdLine(bool has_server_config, bool has_parent_process)
         UserConfigParams::m_race_now = true;
     }   // --race-now
 
+    if(CommandLine::has( "--use-keyboard",&n)) {
+        UserConfigParams::m_default_keyboard = n;
+    } //--use-keyboard
+
+    if(CommandLine::has( "--use-gamepad",&n)) {
+        UserConfigParams::m_default_gamepad = n;
+    } //--use-gamepad
+
     if(CommandLine::has("--laps", &s))
     {
         int laps = atoi(s.c_str());