my Rect stays for 1 frame created in 'for in' loop Pygame

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my Rect stays for 1 frame created in 'for in' loop Pygame
How do I test when Rect collides with Rect | Python | Pygame
pygame.draw.rect TypeError: Rect argument is invalid
pygame.Rect.move_ip() not updating rect attribute
Pygame draw rect following another rect based on their coordinates (ie snake game)
Pygame Rect center can't overwrite Rect's left

my Rect stays for 1 frame created in 'for in' loop Pygame

Tag : python , By : CodeOfficer

Date : November 29 2020, 04:01 AM

To fix this issue You need to somehow keep track of which rect you already clicked.
There are of course endless ways to do this. One way is to use a custom class instead of a simple Rect so we can easily keep track of the state of each "row".

import pygame

class Row:
    def __init__(self, rect):
        self.rect = rect
        self.clicked = False

def main():
    pygame.init()
    quit = False
    screen = pygame.display.set_mode((230, 230))
    clock = pygame.time.Clock()

    rows = [
        Row(pygame.Rect(10, 10, 100, 100)),
        Row(pygame.Rect(10, 120, 100, 100)),
        Row(pygame.Rect(120, 10, 100, 100)),
        Row(pygame.Rect(120, 120, 100, 100))
    ]

    while not quit:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                return 
            if event.type == pygame.MOUSEBUTTONDOWN:
                for row in (row for row in rows if row.rect.collidepoint(event.pos)):
                    row.clicked = True

        screen.fill(pygame.Color('grey12'))
        moupos = pygame.mouse.get_pos()
        for row in rows:
            if row.clicked:
                color = pygame.Color('orange')
            else:
                color = pygame.Color('green') if row.rect.collidepoint(moupos) else pygame.Color('dodgerblue')
            pygame.draw.rect(screen, color, row.rect)

        pygame.display.flip()
        clock.tick(60)

if __name__ == '__main__':
    main()

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my Rect stays for 1 frame created in for in loop Pygame , Pygame draw rect following another rect based on their coordinates (ie snake game) , pygame.draw.rect TypeError: Rect argument is invalid , Pygame Rect center cant overwrite Rects left , pygame draw rect ,

How do I test when Rect collides with Rect | Python | Pygame

Tag : python , By : Hadley

Date : March 29 2020, 07:55 AM

around this issue Store the two Rects as variables, and use pygame.Rect.colliderect() to test if they overlap.
For instance:

rect1 = Rect(0,0,100,100)
rect2 = Rect(90,90,100,100)

collideTest = rect1.colliderect(rect2)

pygame.draw.rect TypeError: Rect argument is invalid

Tag : python , By : stan

Date : March 29 2020, 07:55 AM

I wish did fix the issue. pygame.draw.rect() expects pygame.Rect() object not tuple (x, y, w, h)
So keep size and position as pygame.Rect()

self.rect = pygame.Rect()
self.rect.x = x
self.rect.y = y
self.rect.width = w
self.rect.height = h

self.rect = pygame.Rect(x, y, w, h)

pygame.draw.rect(screen, black, self.rect, 4)

screen.blit(self.image, self.rect)

if self.rect.collidepoint(self.mouse):

if self.x+self.w > self.mouse[0] > self.x and self.y+self.h > self.mouse[1] > self.y:

self.textRect.center = self.rect.center

self.textRect.center = ( (self.x+int(self.w/2)), (self.y+int(self.h/2)) )

pygame.Rect.move_ip() not updating rect attribute

Tag : python , By : Paul McKee

Date : March 29 2020, 07:55 AM

Any of those help You've to traverse the snakes body in reverse order in the method movement. For each part of the body, copy the position of the previous part. The head part gets the current position of the snake:

class Snake(object):
    # [...]

    def movement(self):
        if self.direction == 'right':
            self.move = (self.speed,0)
        elif self.direction == 'left':
            self.move = (-self.speed,0)
        elif self.direction == 'up':
            self.move = (0,-self.speed)
        elif self.direction == 'down':
            self.move = (0,self.speed)

        self.rect.move_ip(self.move)
        self.rect.clamp_ip(SCREEN.get_rect())

        for i in range(len(self.body)-1, 0, -1):
            self.body[i].rect.center = self.body[i-1].rect.center
        if self.body:
            self.body[0].rect.center = self.rect.center

class Snake(object):
    # [...]

    def add_segment(self,food):
        if len(self.body) == 0 or self.rect.colliderect(food.rect):
            snake_segment = Snake(GREEN,RECTANGLE_WIDTH,RECTANGLE_HEIGHT)
            snake_segment.rect.center = self.rect.center
            self.body.append(snake_segment)

class Snake(object):
    # [...]

    def draw_snake(self):
        for snake_segment in self.body:
            snake_segment.blit()

Pygame draw rect following another rect based on their coordinates (ie snake game)

Tag : python , By : phatfish

Date : March 29 2020, 07:55 AM

should help you out You need a list of the snakes positions. The position of each element of the snake is an element of the list:

snakepos = [[startX, startY]]

snakepos.append(snakepos[-1][:])

for i in range(len(snakepos)-1, 0, -1):
    snakepos[i] = snakepos[i-1][:]
snakepos[0][0] += moveX
snakepos[0][1] += moveY

snakepos.insert(0, [snakepos[0]+moveX, snakepos[1]+moveY])
del snakepos[-1]

for i in range(1, len(snakepos)):
    pygame.draw.rect(screen, yellow, [snakepos[i], (width, height)])
snake = pygame.draw.rect(screen, white, [snakepos[0], (width, height)])