Move physics/shapes example to graphics/physics, at least until there are more.

Also fix some minor issues: we don't need to create a Clock;
pippy.pygame.next_frame() does that for us; and the nested while loop is not
quite right.

2 files changed, 47 insertions, 53 deletions

diff --git a/data/graphics/physics b/data/graphics/physics
new file mode 100644
index 0000000..88138fd
--- /dev/null
+++ b/data/graphics/physics
@@ -0,0 +1,47 @@
+# physics
+
+import pippy, pygame, sys, math
+from pygame.locals import *
+from pippy import physics
+
+# initialize pygame first thing
+pygame.init()
+screen = pygame.display.set_mode((1200,900))
+ 
+# set up the physics world (instance of Elements)
+world = physics.Elements(screen.get_size())
+world.renderer.set_surface(screen)
+        
+# set up initial physics objects
+world.add.ground()
+world.add.ball((600,0), 50)
+world.add.rect((500,0), 25, 300, dynamic=True, density=1.0, restitution=0.16, friction=0.5)
+
+# add 20 more balls
+balls = 0
+while(balls<20):
+    world.add.ball((balls*5+200,balls*5), 50)
+    balls+=1
+
+# begin physics simulation
+world.run_physics = True
+
+while pippy.pygame.next_frame() and world.run_physics:
+    for event in pygame.event.get():
+        if event.type == QUIT:
+            sys.exit()
+
+        elif event.type == KEYDOWN:
+            sys.exit()
+
+    # clear display with a color
+    # (r,g,b), where 0<=value<256
+    screen.fill((80,160,240))
+
+    # update & draw physics world
+    world.update()
+    world.draw()
+
+    # update the display
+    pygame.display.flip()
+
diff --git a/data/physics/shapes b/data/physics/shapes
deleted file mode 100644
index 111b22a..0000000
--- a/data/physics/shapes
+++ /dev/null
@@ -1,53 +0,0 @@
-# physics
-
-import pippy, pygame, sys, math
-from pygame.locals import *
-from pippy import physics
-
-# initialize pygame first thing
-pygame.init()
-screen = pygame.display.set_mode((1200,900))
-clock = pygame.time.Clock()
- 
-# set up the physics world (instance of Elements)
-world = physics.Elements(screen.get_size())
-world.renderer.set_surface(screen)
-        
-# set up initial physics objects
-world.add.ground()
-world.add.ball((600,0), 50)
-world.add.rect((500,0), 25, 300, dynamic=True, density=1.0, restitution=0.16, friction=0.5)
-
-# add 20 more balls
-balls = 0
-while(balls<20):
-    world.add.ball((balls*5+200,balls*5), 50)
-    balls+=1
-
-# begin physics simulation
-world.run_physics = True
-
-while pippy.pygame.next_frame():
-        while world.run_physics:
-               
-            for event in pygame.event.get():
-                if event.type == QUIT:
-                    sys.exit()
-
-                elif event.type == KEYDOWN:
-                    sys.exit()            
-
-            # clear display with a color
-            # (r,g,b), where 0<=value<256
-            screen.fill((80,160,240)) 
-
-            # update & draw physics world
-            world.update()
-            world.draw()
-
-            # update the display
-            pygame.display.flip()  
-            
-            # try to stay at 30 frames per second
-            clock.tick(30) 
-