Totally random events

Added toggle to enable a small chance of a random event occuring when certain conditions are met.

selfdrive/ui/ui.h

@@ -81,7 +81,7 @@ struct Alert {
         alert = {"openpilot crashed", "Please post the error log in the FrogPilot Discord!",
                  "controlsWaiting", cereal::ControlsState::AlertSize::MID,
                  cereal::ControlsState::AlertStatus::NORMAL,
-                 AudibleAlert::NONE};
+                 Params().getBool("RandomEvents") ? AudibleAlert::FART : AudibleAlert::NONE};
       } else if (controls_frame < started_frame) {
         // car is started, but controlsState hasn't been seen at all
         alert = {"openpilot Unavailable", "Waiting for controls to start",
@@ -211,6 +211,7 @@ typedef struct UIScene {
   bool parked;
   bool pedals_on_ui;
   bool personalities_via_screen;
+  bool random_events;
   bool reverse_cruise;
   bool reverse_cruise_ui;
   bool right_hand_drive;
@@ -252,6 +253,7 @@ typedef struct UIScene {
   int conditional_speed_lead;
   int conditional_status;
   int current_holiday_theme;
+  int current_random_event;
   int custom_colors;
   int custom_icons;
   int custom_signals;