Allow setting default powerup (instead of nothing) and set default powerup to zipper

src/items/powerup.cpp

@@ -38,6 +38,22 @@
 #include "utils/string_utils.hpp"
 #include "utils/log.hpp" //TODO: remove after debugging is done
 
+#define DEFAULT_POWERUP POWERUP_ZIPPER
+
+/* Available powerups:
+
+ - POWERUP_SWATTER:     Flyswatter
+ - POWERUP_ZIPPER:      Speed boost
+ - POWERUP_BOWLING:     Bowling ball
+ - POWERUP_ANVIL:       Slowy downy anchor thingy (I think)
+ - POWERUP_PARACHUTE:   Slowy downy parachute thingy (like anvil but more)
+ - POWERUP_BUBBLEGUM:   Bubblegum shield
+ - POWERUP_SWITCH:      Switch powerups (I think)
+ - POWERUP_NOTHING:     Nothing
+ - POWERUP_CAKE:        Explody cake
+ - POWERUP_PLUNGER:     Plunger
+*/
+
 //-----------------------------------------------------------------------------
 /** Constructor, stores the kart to which this powerup belongs.
  *  \param kart The kart to which this powerup belongs.
@@ -495,7 +511,7 @@ void Powerup::use()
     if ( m_number <= 0 )
     {
         m_number = 0;
-        m_type   = PowerupManager::POWERUP_NOTHING;
+        m_type   = PowerupManager::DEFAULT_POWERUP;
     }
 }   // use