Diff from to

# examples/stars.py

` `
` `
` def init_star():`
`-	"creates new star values"`
`-	dir = random.randrange(100000)`
`-	velmult = random.random()*.6+.4`
`-	vel = [math.sin(dir) * velmult, math.cos(dir) * velmult]`
`-	return vel, WINCENTER[:]`
`+    "creates new star values"`
`+    dir = random.randrange(100000)`
`+    velmult = random.random()*.6+.4`
`+    vel = [math.sin(dir) * velmult, math.cos(dir) * velmult]`
`+    return vel, WINCENTER[:]`
` `
` `
` def initialize_stars():`
`-	"creates a new starfield"`
`-	stars = []`
`-	for x in range(NUMSTARS):`
`-		star = init_star()`
`-		vel, pos = star`
`-		steps = random.randint(0, WINCENTER[0])`
`-		pos[0] = pos[0] + (vel[0] * steps)`
`-		pos[1] = pos[1] + (vel[1] * steps)`
`-		vel[0] = vel[0] * (steps * .09)`
`-		vel[1] = vel[1] * (steps * .09)`
`-		stars.append(star)`
`-	move_stars(stars)`
`-	return stars`
`-	`
`+    "creates a new starfield"`
`+    stars = []`
`+    for x in range(NUMSTARS):`
`+        star = init_star()`
`+        vel, pos = star`
`+        steps = random.randint(0, WINCENTER[0])`
`+        pos[0] = pos[0] + (vel[0] * steps)`
`+        pos[1] = pos[1] + (vel[1] * steps)`
`+        vel[0] = vel[0] * (steps * .09)`
`+        vel[1] = vel[1] * (steps * .09)`
`+        stars.append(star)`
`+    move_stars(stars)`
`+    return stars`
`+  `
` `
` def draw_stars(surface, stars, color):`
`-	"used to draw (and clear) the stars"`
`-	for vel, pos in stars:`
`-                pos = (int(pos[0]), int(pos[1]))`
`-		surface.set_at(pos, color)`
`+    "used to draw (and clear) the stars"`
`+    for vel, pos in stars:`
`+        pos = (int(pos[0]), int(pos[1]))`
`+        surface.set_at(pos, color)`
` `
` `
` def move_stars(stars):`
`-	"animate the star values"`
`-	for vel, pos in stars:`
`-		pos[0] = pos[0] + vel[0]`
`-		pos[1] = pos[1] + vel[1]`
`-		if not 0 <= pos[0] <= WINSIZE[0] or not 0 <= pos[1] <= WINSIZE[1]:`
`-			vel[:], pos[:] = init_star()`
`-		else:`
`-			vel[0] = vel[0] * 1.05`
`-			vel[1] = vel[1] * 1.05`
`-	`
`+    "animate the star values"`
`+    for vel, pos in stars:`
`+        pos[0] = pos[0] + vel[0]`
`+        pos[1] = pos[1] + vel[1]`
`+        if not 0 <= pos[0] <= WINSIZE[0] or not 0 <= pos[1] <= WINSIZE[1]:`
`+            vel[:], pos[:] = init_star()`
`+        else:`
`+            vel[0] = vel[0] * 1.05`
`+            vel[1] = vel[1] * 1.05`
`+  `
` `
` def main():`
`-	"This is the starfield code"`
`-	#create our starfield`
`-	random.seed()`
`-	stars = initialize_stars()`
`-        clock = pygame.time.Clock()`
`-	#initialize and prepare screen`
`-	pygame.init()`
`-	screen = pygame.display.set_mode(WINSIZE)`
`-	pygame.display.set_caption('pygame Stars Example')`
`-	white = 255, 240, 200`
`-	black = 20, 20, 40`
`-	screen.fill(black)`
`+    "This is the starfield code"`
`+    #create our starfield`
`+    random.seed()`
`+    stars = initialize_stars()`
`+    clock = pygame.time.Clock()`
`+    #initialize and prepare screen`
`+    pygame.init()`
`+    screen = pygame.display.set_mode(WINSIZE)`
`+    pygame.display.set_caption('pygame Stars Example')`
`+    white = 255, 240, 200`
`+    black = 20, 20, 40`
`+    screen.fill(black)`
` `
`-	#main game loop`
`-	done = 0`
`-	while not done:`
`-		draw_stars(screen, stars, black)`
`-		move_stars(stars)`
`-		draw_stars(screen, stars, white)`
`-		pygame.display.update()`
`-		for e in pygame.event.get():`
`-			if e.type == QUIT or (e.type == KEYUP and e.key == K_ESCAPE):`
`-				done = 1`
`-				break`
`-			elif e.type == MOUSEBUTTONDOWN and e.button == 1:`
`-				WINCENTER[:] = list(e.pos)`
`-                clock.tick(50)`
`+    #main game loop`
`+    done = 0`
`+    while not done:`
`+        draw_stars(screen, stars, black)`
`+        move_stars(stars)`
`+        draw_stars(screen, stars, white)`
`+        pygame.display.update()`
`+        for e in pygame.event.get():`
`+            if e.type == QUIT or (e.type == KEYUP and e.key == K_ESCAPE):`
`+                done = 1`
`+                break`
`+            elif e.type == MOUSEBUTTONDOWN and e.button == 1:`
`+                WINCENTER[:] = list(e.pos)`
`+        clock.tick(50)`
` `
` `
` # if python says run, then we should run`
` if __name__ == '__main__':`
`-	main()`
`+    main()`
` `
` `
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