blit

问题 I'm fairly new to pygame and ive hit my first stump which I cannot find an answer for.. After blitting text, then changing the string for the same variable, the game instead of replacing the original text with the new, overlaps the two texts..? 回答1: You have to erase the old text first. Surfaces created by Font.render are ordinary surfaces. Once a Surface is blit, its contents become part of the destination surface, and you have to manipulate the destination surface to erase whatever was blit

问题 When I use blit function, it does not delete the previous loaded sprite to make sprites move until I call the "display.fill(bgcolor)" function. The problem is that I have a multicolored background. so how do I update the image without affecting my background? NOTE - already tried "pygame.display.update()" and "pygame.display.flip()" - it doesn't help :( class states(): def __init__(self, goku1,goku2, x, y): self.image=goku1 keys=pygame.key.get_pressed() if keys[K_RIGHT]: self.image=goku2 if

问题 I'm currently working on a space exploration game in 2D top view. I have quite a few planets and since the map span is much greater than the display I end up with a lot of planet sprites lying outside the display area. At the moment I assume Pygame will not actually blit the sprite if they are not located in the display (as I understand it blitting and drawing to a surface slows things quite a lot) is that true ? Or would I need to add a condition to check if the sprite is located within the

问题 I am useing html5 canvas, and I am creating a game were it is going to be possible to upload your face into the game, and use it as the main charactar. Unfortunately, the charactars in the game are circular, like smiley faces. So how would this be done? Is it possible to take a picture, and cut a circle out of it, so anything outside the circle would be transparent? If so, how would this be done? 回答1: You'll want to make a clipping path. This path will clip everything outside of a circle: ctx

问题 Im making a game to practice mygame and im creating a highscore screen but i cant seem to properly blit the text how i want here is the highscore method def high_screen(self): screen.blit(background,(0,0)) myfont = pygame.font.SysFont("impact", 20) scorefile = open('highscores.txt', 'r') highscores = scorefile.read() label = myfont.render((highscores), 1, (0,0,0)) screen.blit(label, (0, 0)) self.back = pygame.image.load('resources/screen/back.png') self.back_r = self.back.get_bounding_rect()

问题 I'm making the google dinosaur game in python and i have multithreaded the scoring system. The multi-threading works but pygame keeps popping up an error that says "Text has zero width" def scoreCounter(currentScore, block1, block2, delay): while(True): currentScore += 1 scoreText = scoreFont.render("Score {0}".format(currentScore), 1, (0, 0, 0)) screen.blit(scoreText, (1, 1)) pygame.time.wait(delay) #delay is changed based on the current score, default is 100 #rest of the code is just

问题 I am trying to plot multiple subplots in real-time in my python application. Ideally, I should also be able to plot multiple lines in each subplot, but for simplicity here I assume one line per subplot. In order to do so efficiently (I am looking for fast plots), I am trying to extend one example I found online (https://taher-zadeh.com/speeding-matplotlib-plotting-times-real-time-monitoring-purposes/) to my case. My code is: import time # for Mac OSX import matplotlib matplotlib.use('TkAgg')

问题 In my code it keeps giving me the error: pygame.surface.Surface.blit(a, (x1, y1)) TypeError: descriptor 'blit' requires a 'pygame.Surface' object but received a 'pygame.Rect'. Help! This is my code: import pygame import time pygame.init() screen = pygame.display.set_mode() display_width = 1366 display_height = 768 white = (255,255,255) red = (255,0,0) green = (0,255,0) gameDisplay = pygame.display.set_mode((display_width,display_height)) clock = pygame.time.Clock() global x1 global y1 global

问题 If I am copying pixels from one FBO to another and each of them have multiple (not necessary the same number) of color attachments, and if my mask is GL_COLOR_BUFFER_BIT , which color attachments ( GL_COLOR_ATTACHMENT0 , GL_COLOR_ATTACHMENT1 , ...., GL_COLOR_ATTACHMENTi ) does it copy? All of them? If yes, what if these FBOs have different number of color buffers attached to them? Assume that there are 2 FBOs that are bound in this way: glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo1);

问题 In my serialiser/deserialiser, I have the following snippet: if (element_type.IsValueType && collection_type.IsArray) { try { GCHandle h = GCHandle.Alloc(array_object, GCHandleType.Pinned); int arrayDataSize = Marshal.SizeOf(element_type) * c.Count; var array_data = new byte[arrayDataSize]; Marshal.Copy(h.AddrOfPinnedObject(), array_data, 0, arrayDataSize); h.Free(); WriteByteArray(array_data); return; } catch (ArgumentException) { //if the value type is not blittable, then we need to