Make one circle disappear and another appear

Question

So i'm trying to recreate the Flappy Fall game for iOS and I'm having trouble making one circle disappear and another show up. Right now I have this as the main loop.

    while True:
        if newBall==True:
            x=rand(50,w-50)
            y=-7
            newBall=False
        if x in range(xBasket-length,xBasket+length) and y in range(yBasket-int(length/2),yBasket+int(length/2)):    #If the circle hit's the basket
            newBall=True        #Creates a new ball
            score+=1
        elif x in range(0,w) and y in range(700,751):    #If it hits the ground
            break
        if newBall==False:    #If there is no new ball yet
            y-=7
        win.fill(BLACK)
        font=pygame.font.Font(None,48)
        show=font.render(str(score),1,RED,None)
        win.blit(show,(200,150))
        pygame.draw.rect(win,RED,(0,700,w,h),0)    #ground
        for event in pygame.event.get():
            if event.type==QUIT:
               pygame.quit()
                sys.exit()
            if event.type==KEYDOWN:
                if event.key==K_LEFT and xBasket-length!=0:
                    xBasket-=5
                if event.key==K_RIGHT and xBasket+length!=w:
                    xBasket+=5
        pygame.draw.circle(win,BLUE,(x,y),7)    #ball that falls
        pygame.draw.polygon(win,WHITE,((xBasket-length,yBasket-int(length/2)),(xBasket+length,yBasket-int(length/2)),(xBasket+length,yBasket+int(length/2)),(xBasket-length,yBasket+int(length/2)),0))    #basket
        pygame.display.update()
        time.delay(5)
        s(0.001)

I don't know where it's going wrong because the "basket" is showing up just fine.

"Having trouble" - what *exactly* is the problem? – jonrsharpe Mar 15 '14 at 17:16 — jonrsharpe, Mar 15 '14 at 17:16
The ball isn't showing up at all. It's just a screen. – Dauntless001 Mar 15 '14 at 17:39 — Dauntless001, Mar 15 '14 at 17:39

town_math · Answer 1 · 2014-03-16T11:37:10.907

Try

print x,y

right before you draw the circle to check your values. It looks like your y value is negative and I believe* you need positive coordinate to draw on the canvas.

Edit: Confirmed, I got your code working by changing y=-7 to y=300, a little blue ball went up the screen. Also, it may be unrelated but I had to edit the font line to read:

 show=font.render(str(score),1,RED)#,None)

but I think that has more to do with my version of python and pygame than anything else.

score 0 · Answer 2 · answered Mar 16 '14 at 08:46

0

On line 12, you only have y = -7 maybe you also want to include the x = rand(50, 50-w) line just before it so that you have an x and a y position instead of just the y position.

x = rand(50, 50-w)

y = -7

answered Mar 16 '14 at 08:46

sshashank124

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Make one circle disappear and another appear

2 Answers2