# import pygame module in this program
import pygame

# activate the pygame library 
# initiate pygame and give permission 
# to use pygame's functionality. 
pygame.init()


# create the display surface object 
# (x, y) is the height and width of pygame window
win=pygame.display.set_mode((500, 500))

# set the pygame window name 
pygame.display.set_caption("Scrolling Text")

# setting the pygame font style(1st parameter)
# and size of font(2nd parameter)
Font=pygame.font.SysFont('timesnewroman',  30)

# define the RGB value for white, 
# green, yellow, orange colour 
white=(255, 255, 255)
yellow=(255, 255, 0)
green=(0, 255, 255)
orange=(255, 100, 0)
done=False

# Split the text into letters 
# 3rd parameter is font colour and 
# 4th parameter is Font background
letter1=Font.render("H", False, orange, yellow)
letter2=Font.render("E", False, orange, green)
letter3=Font.render("M", False, orange, yellow)
letter4=Font.render("A", False, orange, green)
letter5=Font.render("N", False, orange, yellow)
letter6=Font.render("T", False, orange, green)
letter7=Font.render("H", False, orange, yellow)

# assigning values to
# i and c variable 
i=0
c=1

# infinite loop
while not done:
    if(i>=820):
        i=0
        c+=1
        pygame.time.wait(500)
        
    # completely fill the surface object 
    # with white color 
    win.fill(white)
    if(c%6==0):    
        # Scrolling the text in diagonal
        # on right side of the Screen.
        # copying the text surface object 
        # to the display surface object  
        # at the center coordinate. 
        win.blit(letter1, (662-i, -162+i))
        win.blit(letter2, (639-i, -139+i))
        win.blit(letter3, (608-i, -108+i))
        win.blit(letter4, (579-i, -79+i))
        win.blit(letter5, (552-i, -52+i))
        win.blit(letter6, (529-i, -29+i))
        win.blit(letter7, (500 -i, 0 + i))
        i+=80
    if(c%6==5): 
        # Scrolling the text in diagonal on
        # left side of the Screen.
        win.blit(letter1, (-162+i, -162+i)) 
        win.blit(letter2, (-135+i, -135+i))
        win.blit(letter3, (-110+i, -110+i))
        win.blit(letter4, (-79+i, -79+i))
        win.blit(letter5, (-52+i, -52+i))
        win.blit(letter6, (-27+i, -27+i))
        win.blit(letter7, (0+i, 0+i))
        
        # Decides the speed of
        # the text on screen
        i+=80    
    if(c%6==4): 
      
        # Scrolling the text in
        # right side of the Screen.
        win.blit(letter1, (480, -180+i))
        win.blit(letter2, (480, -150+i))
        win.blit(letter3, (480, -120+i))
        win.blit(letter4, (480, -90+i))
        win.blit(letter5, (480, -60+i))
        win.blit(letter6, (480, -30+i))
        win.blit(letter7, (480, 0+i))
        
        # Decides the speed of
        # the text on screen
        i +=80  
    if(c%6==3):  
        # Scrolling the text in left
        # side of the Screen.
        win.blit(letter1, (0, -180+i))
        win.blit(letter2, (0, -150+i))
        win.blit(letter3, (0, -120+i))
        win.blit(letter4, (0, -90+i))
        win.blit(letter5, (0, -60+i))
        win.blit(letter6, (0, -30+i))
        win.blit(letter7, (0, 0+i))
        
        # Decides the speed of
        # the text on screen
        i+=80   
    if(c%6==1):

        win.blit(letter1, (-124+i, 0))
        win.blit(letter2, (-102+i, 0))
        win.blit(letter3, (-82+i, 0))
        win.blit(letter4, (-58+i, 0))
        win.blit(letter5, (-40+i, 0))
        win.blit(letter6, (-19+i, 0))
        win.blit(letter7, (0+i, 0))
        
        # Decides the speed of
        # the text on screen
        i +=80    
    if(c%6==2):
      
       # Scrolling the text in bottom of the Screen.
        win.blit(letter1, (-124+i, 470))
        win.blit(letter2, (-102+i, 470))
        win.blit(letter3, (-82+i, 470))
        win.blit(letter4, (-58+i, 470))
        win.blit(letter5, (-40+i, 470))
        win.blit(letter6, (-19+i, 470))
        win.blit(letter7, (0+i, 470))
        
        # Decides the speed
        # of the text on screen
        i+=80
    
    # Draws the surface object to the screen.
    pygame.display.update()
    
    # iterate over the list of Event objects 
    # that was returned by pygame.event.get() method
    for event in pygame.event.get():
        if(event.type==pygame.QUIT):
            done=True
    #Delay with 5ms
    pygame.time.wait(500)
pygame.quit()