Slightly better balance

avocado.py

@@ -5,16 +5,7 @@ from support import operations
 
 class Avocado:
 
-    def __init__(self, screen, color, size, target, filename='img/AvoCado_0.png'):
-
-        # HELP please!!
-        # We randomly decide whether we should instanciate or not
-        # I'd rather just not return an instance,
-        # but I don't know how to do that :(
-        if random.randint(0,40) != 1:
-            self.is_still_falling = False
-            self.has_been_pinned = False
-            return None
+    def __init__(self, screen, color, size, target, level, filename='img/AvoCado_0.png'):
 
         # Set up our instance variables
         self.screen = screen
@@ -32,7 +23,7 @@ class Avocado:
         # Set the avocado's initial position and velocity
         self.init_pos()
         self.vx = 2
-        self.vy = 4
+        self.vy = 4 * (level * 0.5)
 
         # Avocado state
         self.is_still_falling = True

crystal.py

@@ -16,7 +16,7 @@ class Crystal:
         self.imageCenterY = self.screen.get_rect().centery
 
     def blitme(self):
-        pygame.draw.ellipse(self.screen, self.color, (self.imageCenterX-158,self.imageCenterY-5,277,217), 0)
+        pygame.draw.ellipse(self.screen, self.color, (self.imageCenterX-100,self.imageCenterY-5,200,183), 0)
 
     def setColor(self, color):
         self.color = color

game.py

@@ -108,7 +108,11 @@ class TheGame:
     def main(self):
         clock = pygame.time.Clock()
         desired_fps = 60
-        multiplier = 3
+        # Never set below 4, else we have a high
+        # probability of losing the game due to a missing color
+        # Alternatively, you could edit chooseRandomColor()
+        # to only work on the first multiplier colors
+        multiplier = 4
         time = timeleft = 30
         level = 1
         levelChange = 0
@@ -169,10 +173,11 @@ class TheGame:
                 avocadosInGame = len(movingAvocados)
                 avocadosWanted = level * multiplier
                 if avocadosInGame < avocadosWanted:
-                    for i in range(avocadosInGame, avocadosWanted):
+                    probability = int(1.0/(avocadosWanted - avocadosInGame) * 100)
+                    if random.randint(0, probability) < 3:
                         avocolor = self.chooseRandomColor()
                         avosize = (50, 50)   # should we randomize this?
-                        a = avocado.Avocado(self.screen, avocolor, avosize, color)
+                        a = avocado.Avocado(self.screen, avocolor, avosize, color, level)
                         movingAvocados.append(a)
 
                 pinnedAvocados += [avo for avo in movingAvocados if avo.isPinned() ]