pythonpython-3.xpygamemouseeventrect
Trouble updating rect object pygame
I am new to coding and am having trouble with my game. I am wanting the white rectangles to change to a new color when clicked on. If they are not white and they are clicked on they should not change colors. Right now they are just staying white so I am not sure if they are not updating or if my mouse click detection is wrong. Any help is highly appreciated, thanks!
# Color Matching Game
# Click a box when it is white to change it to a random color
# If the two colors match you gain a point
import pygame
# User-defined functions
def main():
# initialize all pygame modules (some need initialization)
pygame.init()
# create a pygame display window
pygame.display.set_mode((500, 400))
# set the title of the display window
pygame.display.set_caption('Color Match')
# get the display surface
w_surface = pygame.display.get_surface()
# create a game object
game = Game(w_surface)
# start the main game loop by calling the play method on the game object
game.play()
# quit pygame and clean up the pygame window
pygame.quit()
# User-defined classes
class Game:
# An object in this class represents a complete game.
def __init__(self, surface):
# Initialize a Game.
# - self is the Game to initialize
# - surface is the display window surface object
# Initializa game
self.surface = surface
self.bg_color = pygame.Color('black')
self.FPS = 60
self.game_Clock = pygame.time.Clock()
self.close_clicked = False
self.continue_game = True
# Initialize game specific objects
self.left_rect = Rect('white', (87.5, 100, 75, 200), self.surface)
self.right_rect = Rect('white', (337.5, 100, 75, 200), self.surface)
self.max_frames = 10000
self.frame_counter = 0
def play(self):
# Play the game until the player presses the close box.
# - self is the Game that should be continued or not.
while not self.close_clicked:
# play frame
self.handle_events()
self.draw()
if self.continue_game:
self.decide_continue()
self.game_Clock.tick(self.FPS)
def handle_events(self):
# Handle each user event by changing the game state appropriately.
# - self is the Game whose events will be handled
events = pygame.event.get()
for event in events:
# Detects if user exits out
if event.type == pygame.QUIT:
self.close_clicked = True
# Detects if the user clicks M1
if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1:
self.mouse_pos = pygame.mouse.get_pos()
def draw(self):
# Draw all game objects.
# - self is the Game to draw
self.surface.fill(self.bg_color) # clear the display surface first
self.left_rect.draw()
self.right_rect.draw()
pygame.display.update() # make the updated surface appear on the display
def decide_continue(self):
# Check and remember if the game should continue
# - self is the Game to check
if self.frame_counter > self.max_frames:
self.continue_game = False
class Rect:
# An object in this class represents a rect
def __init__(self, rect_color, rect_center, surface):
# Initialize a rect.
# - self is the rect to initialize
# - color is the pygame.Color of the rect
# - center is a list containing the x and y int coords
# - surface is the window's pygame.Surface object
self.color = pygame.Color(rect_color)
self.center = rect_center
self.surface = surface
self.colors = ['red', 'blue', 'green', 'yellow']
def update(self, mouse_pos):
# Updates rectangle to new colour if it is white and detects a mouse click
if self.color == 'white' and self.rect.collidepoint(play.mouse_pos):
self.color = pygame.Color(self.colors[randint(0, 3)])
def draw(self):
# Draw the rect on the surface
# - self is the rect
pygame.draw.rect(self.surface, self.color, self.center)
main()
Solution
You missed to call the update method:
class Game:
# [...]
def handle_events(self):
# Handle each user event by changing the game state appropriately.
# - self is the Game whose events will be handled
events = pygame.event.get()
for event in events:
# [...]
# Detects if the user clicks M1
if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1:
self.mouse_pos = pygame.mouse.get_pos()
self.left_rect.update(self.mouse_pos) # <----
self.right_rect.update(self.mouse_pos) # <----
You need to compare the color to a white color rather than to the string 'white':
self.color == 'white'
self.color == pygame.Color('white')
collidepoint is a method of pygame.Rect. Hence you need to create a pygame.Rect object:
import random
class Rect:
# [...]
def update(self, mouse_pos):
# Updates rectangle to new colour if it is white and detects a mouse click
rect = pygame.Rect(self.center)
if self.color == pygame.Color('white') and rect.collidepoint(mouse_pos):
self.color = pygame.Color(self.colors[random.randint(0, 3)])
Complete code:
# Color Matching Game
# Click a box when it is white to change it to a random color
# If the two colors match you gain a point
import pygame
import random
# User-defined functions
def main():
# initialize all pygame modules (some need initialization)
pygame.init()
# create a pygame display window
pygame.display.set_mode((500, 400))
# set the title of the display window
pygame.display.set_caption('Color Match')
# get the display surface
w_surface = pygame.display.get_surface()
# create a game object
game = Game(w_surface)
# start the main game loop by calling the play method on the game object
game.play()
# quit pygame and clean up the pygame window
pygame.quit()
# User-defined classes
class Game:
# An object in this class represents a complete game.
def __init__(self, surface):
# Initialize a Game.
# - self is the Game to initialize
# - surface is the display window surface object
# Initializa game
self.surface = surface
self.bg_color = pygame.Color('black')
self.FPS = 60
self.game_Clock = pygame.time.Clock()
self.close_clicked = False
self.continue_game = True
# Initialize game specific objects
self.left_rect = Rect('white', (87.5, 100, 75, 200), self.surface)
self.right_rect = Rect('white', (337.5, 100, 75, 200), self.surface)
self.max_frames = 10000
self.frame_counter = 0
def play(self):
# Play the game until the player presses the close box.
# - self is the Game that should be continued or not.
while not self.close_clicked:
# play frame
self.handle_events()
self.draw()
if self.continue_game:
self.decide_continue()
self.game_Clock.tick(self.FPS)
def handle_events(self):
# Handle each user event by changing the game state appropriately.
# - self is the Game whose events will be handled
events = pygame.event.get()
for event in events:
# Detects if user exits out
if event.type == pygame.QUIT:
self.close_clicked = True
# Detects if the user clicks M1
if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1:
self.mouse_pos = pygame.mouse.get_pos()
self.left_rect.update(self.mouse_pos)
self.right_rect.update(self.mouse_pos)
def draw(self):
# Draw all game objects.
# - self is the Game to draw
self.surface.fill(self.bg_color) # clear the display surface first
self.left_rect.draw()
self.right_rect.draw()
pygame.display.update() # make the updated surface appear on the display
def decide_continue(self):
# Check and remember if the game should continue
# - self is the Game to check
if self.frame_counter > self.max_frames:
self.continue_game = False
class Rect:
# An object in this class represents a rect
def __init__(self, rect_color, rect_center, surface):
# Initialize a rect.
# - self is the rect to initialize
# - color is the pygame.Color of the rect
# - center is a list containing the x and y int coords
# - surface is the window's pygame.Surface object
self.color = pygame.Color(rect_color)
self.center = rect_center
self.surface = surface
self.colors = ['red', 'blue', 'green', 'yellow']
def update(self, mouse_pos):
# Updates rectangle to new colour if it is white and detects a mouse click
rect = pygame.Rect(self.center)
if self.color == pygame.Color('white') and rect.collidepoint(mouse_pos):
self.color = pygame.Color(self.colors[random.randint(0, 3)])
def draw(self):
# Draw the rect on the surface
# - self is the rect
pygame.draw.rect(self.surface, self.color, self.center)
main()
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