#! /usr/bin/env python
import os
import sys
import random
import pygame
# Class for the orange dude
class Player(object):
def __init__(self):
self.rect = pygame.Rect(32, 32, 16, 16)
def move(self, dx, dy):
# Move each axis separately. Note that this checks for collisions both times.
if dx != 0:
self.move_single_axis(dx, 0)
if dy != 0:
self.move_single_axis(0, dy)
def move_single_axis(self, dx, dy):
# Move the rect
self.rect.x += dx
self.rect.y += dy
# If you collide with a wall, move out based on velocity
for wall in walls:
if self.rect.colliderect(wall.rect):
if dx > 0: # Moving right; Hit the left side of the wall
self.rect.right = wall.rect.left
if dx < 0: # Moving left; Hit the right side of the wall
self.rect.left = wall.rect.right
if dy > 0: # Moving down; Hit the top side of the wall
self.rect.bottom = wall.rect.top
if dy < 0: # Moving up; Hit the bottom side of the wall
self.rect.top = wall.rect.bottom
# Nice class to hold a wall rect
class Wall(object):
def __init__(self, pos):
walls.append(self)
self.rect = pygame.Rect(pos[0], pos[1], 16, 16)
# Initialise pygame
os.environ["SDL_VIDEO_CENTERED"] = "1"
pygame.init()
# Set up the display
pygame.display.set_caption("Get to the red square!")
screen = pygame.display.set_mode((320, 240))
clock = pygame.time.Clock()
walls = [] # List to hold the walls
player = Player() # Create the player
# Holds the level layout in a list of strings.
level = [
"WWWWWWWWWWWWWWWWWWWW",
"W W",
"W WWWWWW W",
"W WWWW W W",
"W W WWWW W",
"W WWW WWWW W",
"W W W W W",
"W W W WWW WW",
"W WWW WWW W W W",
"W W W W W W",
"WWW W WWWWW W W",
"W W WW W",
"W W WWWW WWW W",
"W W E W W",
"WWWWWWWWWWWWWWWWWWWW",
]
# Parse the level string above. W = wall, E = exit
x = y = 0
for row in level:
for col in row:
if col == "W":
Wall((x, y))
if col == "E":
end_rect = pygame.Rect(x, y, 16, 16)
x += 16
y += 16
x = 0
running = True
while running:
clock.tick(60)
for e in pygame.event.get():
if e.type == pygame.QUIT:
running = False
if e.type == pygame.KEYDOWN and e.key == pygame.K_ESCAPE:
running = False
# Move the player if an arrow key is pressed
key = pygame.key.get_pressed()
if key[pygame.K_LEFT]:
player.move(-2, 0)
if key[pygame.K_RIGHT]:
player.move(2, 0)
if key[pygame.K_UP]:
player.move(0, -2)
if key[pygame.K_DOWN]:
player.move(0, 2)
# Just added this to make it slightly fun ;)
if player.rect.colliderect(end_rect):
pygame.quit()
sys.exit()
# Draw the scene
screen.fill((0, 0, 0))
for wall in walls:
pygame.draw.rect(screen, (255, 255, 255), wall.rect)
pygame.draw.rect(screen, (255, 0, 0), end_rect)
pygame.draw.rect(screen, (255, 200, 0), player.rect)
# gfxdraw.filled_circle(screen, 255, 200, 5, (0,128,0))
pygame.display.flip()
clock.tick(360)
pygame.quit()
Change the code
Some changes in the code
#! /usr/bin/env python
import os
import sys
import random
import pygame
from pygame import gfxdraw
class Player(object):
def __init__(self):
self.rect = pygame.Rect(32, 32, 16, 16)
def move(self, dx, dy):
if dx != 0:
self.move_single_axis(dx, 0)
if dy != 0:
self.move_single_axis(0, dy)
def move_single_axis(self, dx, dy):
self.rect.x += dx
self.rect.y += dy
self.collision(dx, dy)
def collision(self, dx, dy):
for wall in walls:
if self.rect.colliderect(wall.rect):
if dx > 0:
self.rect.right = wall.rect.left
if dx < 0:
self.rect.left = wall.rect.right
if dy > 0:
self.rect.bottom = wall.rect.top
if dy < 0:
self.rect.top = wall.rect.bottom
class Wall(object):
def __init__(self, pos):
walls.append(self)
self.rect = pygame.Rect(pos[0], pos[1], 16, 16)
os.environ["SDL_VIDEO_CENTERED"] = "1"
pygame.init()
pygame.display.set_caption("Get to the red square!")
screen = pygame.display.set_mode((360, 270))
clock = pygame.time.Clock()
walls = []
player = Player()
# Holds the level layout in a list of strings.
level = """
WWWWWWWWWWWWWWWWWWWW
W W
W WWWWWW W
W WWWW W W
W W WWWW W
W WWW WWWW W
W W W W W
W W W WWW WW
W WWW WWW W W W
W W W W W W
WWW W WWWWW W W
W W WW W
W W WWWW WWW W
W W E W W
WWWWWWWWWWWWWWWWWWWW
""".splitlines()[1:]
# Parse the level string above. W = wall, E = exit
x = y = 1
for row in level:
for col in row:
if col == "W":
Wall((x, y))
if col == "E":
end_rect = pygame.Rect(x, y, 10, 10)
x += 18
y += 18
x = 1
running = True
while running:
clock.tick(60)
for e in pygame.event.get():
if e.type == pygame.QUIT:
running = False
if e.type == pygame.KEYDOWN and e.key == pygame.K_ESCAPE:
running = False
# Move the player if an arrow key is pressed
key = pygame.key.get_pressed()
if key[pygame.K_LEFT]:
player.move(-2, 0)
if key[pygame.K_RIGHT]:
player.move(2, 0)
if key[pygame.K_UP]:
player.move(0, -2)
if key[pygame.K_DOWN]:
player.move(0, 2)
# Just added this to make it slightly fun ;)
if player.rect.colliderect(end_rect):
pygame.quit()
sys.exit()
# Draw the scene
screen.fill((0, 0, 0))
for wall in walls:
pygame.draw.ellipse(screen, (0, 128, 64), wall.rect)
pygame.draw.rect(screen, (255, 0, 0), end_rect)
pygame.draw.rect(screen, (255, 200, 0), player.rect)
# gfxdraw.filled_circle(screen, 255, 200, 5, (0,128,128))
pygame.display.flip()
clock.tick(360)
pygame.quit()
Video
Add a custom background
If you want to add some details to the map, you can save the image of the map and add some details like the following in a drawing app, save the image and then load it in the game as background.
The code will change a bit…
#! /usr/bin/env python
import os
import sys
import random
import pygame
from pygame import gfxdraw
class Player(object):
def __init__(self):
self.rect = pygame.Rect(32, 32, 16, 16)
def move(self, dx, dy):
if dx != 0:
self.move_single_axis(dx, 0)
if dy != 0:
self.move_single_axis(0, dy)
def move_single_axis(self, dx, dy):
self.rect.x += dx
self.rect.y += dy
self.collision(dx, dy)
def collision(self, dx, dy):
for wall in walls:
if self.rect.colliderect(wall.rect):
if dx > 0:
self.rect.right = wall.rect.left
if dx < 0:
self.rect.left = wall.rect.right
if dy > 0:
self.rect.bottom = wall.rect.top
if dy < 0:
self.rect.top = wall.rect.bottom
class Wall(object):
def __init__(self, pos):
walls.append(self)
self.rect = pygame.Rect(pos[0], pos[1], 16, 16)
os.environ["SDL_VIDEO_CENTERED"] = "1"
pygame.init()
pygame.display.set_caption("Get to the red square!")
screen = pygame.display.set_mode((360, 270))
clock = pygame.time.Clock()
walls = []
player = Player()
# Holds the level layout in a list of strings.
level = """
WWWWWWWWWWWWWWWWWWWW
W W
W WWWWWW W
W WWWW W W
W W WWWW W
W WWW WWWW W
W W W W W
W W W WWW WW
W WWW WWW W W W
W W W W W W
WWW W WWWWW W W
W W WW W
W W WWWW WWW W
W W E W W
WWWWWWWWWWWWWWWWWWWW
""".splitlines()[1:]
# Parse the level string above. W = wall, E = exit
x = y = 1
for row in level:
for col in row:
if col == "W":
Wall((x, y))
if col == "E":
end_rect = pygame.Rect(x, y, 10, 10)
x += 18
y += 18
x = 1
running = True
back = pygame.image.load("back.png")
while running:
for e in pygame.event.get():
if e.type == pygame.QUIT:
running = False
if e.type == pygame.KEYDOWN and e.key == pygame.K_ESCAPE:
running = False
# Move the player if an arrow key is pressed
key = pygame.key.get_pressed()
if key[pygame.K_LEFT]:
player.move(-2, 0)
if key[pygame.K_RIGHT]:
player.move(2, 0)
if key[pygame.K_UP]:
player.move(0, -2)
if key[pygame.K_DOWN]:
player.move(0, 2)
# Just added this to make it slightly fun ;)
if player.rect.colliderect(end_rect):
pygame.quit()
sys.exit()
# Draw the scene
screen.blit(back, (0, 0))
# for wall in walls:
# pygame.draw.ellipse(screen, (255, 128, 64), wall.rect)
pygame.draw.rect(screen, (255, 0, 0), end_rect)
pygame.draw.rect(screen, (255, 200, 0), player.rect)
# gfxdraw.filled_circle(screen, 255, 200, 5, (0,128,128))
pygame.display.flip()
clock.tick(120)
pygame.quit()
Twitter: @pythonprogrammi - python_pygame
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