How do you cause an image to move in Pygame?

Question

I have this code:

plaxer = 20
player = 300
vel = 5
res = (720,720)
thistle = (216,191,216)
plum = (221,160,221)
screen = pygame.display.set_mode(res) 
color = (255,255,255) 
color_light = (255,0,0) 
color_dark = (200,0,0) 
red = (128, 0, 128) 
reder = (31,0,31) 
    
width = screen.get_width() 
height = screen.get_height() 
      
smallfont = pygame.font.SysFont('Corbel',35) 
text = smallfont.render('Exit ' , True , color) 
small = pygame.font.SysFont('Corbel',22) 
texta = small.render('Customise Avatar ' , True , color)
screen.fill((0,0,255)) 
img1 = pygame.image.load("C:\\Users\\Path\\To\\Brown.png")
screen.blit(img1,(plaxer, player))
runs = True
    
while runs: 
    mouse = pygame.mouse.get_pos()
    for ev in pygame.event.get():
        keys = pygame.key.get_pressed()  
        if keys[pygame.K_a]:
            plaxer =+ 0
            screen.fill((0,0,255))
            screen.blit(img1, (plaxer, player))

The problem is that the sprite doesn't move properly - it moves too robotically. How do I fix this?

You've mixed up your input methods. You only handle keys in the event loop (``for ev in pygame.event.get()``). You should move that out of the loop. You should also create a ``pygame.time.Clock`` and use it to regulate framerate. — Starbuck5, Mar 23 '21 at 07:36
I edited your post to remove personal information, make the indentation consistent, and [remove noise](https://meta.stackoverflow.com/questions/260776/should-i-remove-fluff-when-editing-questions). However, I don't understand what you mean by "too robotically". — Karl Knechtel, Mar 23 '21 at 08:07
try to make a max force and max speed variable and try to implement that to your charachter so that the player can have a bit of realistic movement. — Summon, Mar 23 '21 at 16:37

score 1 · Answer 1 · answered Mar 23 '21 at 08:01

You have to draw the player and update the display in the application loop:

while runs: 
    mouse = pygame.mouse.get_pos()
    for ev in pygame.event.get():
        if ev.type == pygame.QUIT:
            runs = False

    keys = pygame.key.get_pressed()  
    if keys[pygame.K_a]:
        plaxer += 1

    screen.fill((0,0,255))
    screen.blit(img1, (plaxer, player))
    pygame.display.update()

The typical PyGame application loop has to:

handle the events by either pygame.event.pump() or pygame.event.get().
update the game states and positions of objects dependent on the input events and time (respectively frames)
clear the entire display or draw the background
draw the entire scene (blit all the objects)
update the display by either pygame.display.update() or pygame.display.flip()

How do you cause an image to move in Pygame?

1 Answers1