how to rotate image through mouse in pygame
# if you want to find the angle the mouse position is from the center #heres the formula angle = 360 - math.atan2(pos[1] - 300, pos[0] - 400) * 180 / math.pi
how to rotate image through mouse in pygame
# if you want to find the angle the mouse position is from the center #heres the formula angle = 360 - math.atan2(pos[1] - 300, pos[0] - 400) * 180 / math.pi
pygame rotate image
import pygame import pygame.font pygame.init() size = (400,400) screen = pygame.display.set_mode(size) clock = pygame.time.Clock() def blitRotate(surf, image, pos, originPos, angle): # calcaulate the axis aligned bounding box of the rotated image w, h = image.get_size() box = [pygame.math.Vector2(p) for p in [(0, 0), (w, 0), (w, -h), (0, -h)]] box_rotate = [p.rotate(angle) for p in box] min_box = (min(box_rotate, key=lambda p: p[0])[0], min(box_rotate, key=lambda p: p[1])[1]) max_box = (max(box_rotate, key=lambda p: p[0])[0], max(box_rotate, key=lambda p: p[1])[1]) # calculate the translation of the pivot pivot = pygame.math.Vector2(originPos[0], -originPos[1]) pivot_rotate = pivot.rotate(angle) pivot_move = pivot_rotate - pivot # calculate the upper left origin of the rotated image origin = (pos[0] - originPos[0] + min_box[0] - pivot_move[0], pos[1] - originPos[1] - max_box[1] + pivot_move[1]) # get a rotated image rotated_image = pygame.transform.rotate(image, angle) # rotate and blit the image surf.blit(rotated_image, origin) # draw rectangle around the image pygame.draw.rect (surf, (255, 0, 0), (*origin, *rotated_image.get_size()),2) font = pygame.font.SysFont('Times New Roman', 50) text = font.render('image', False, (255, 255, 0)) image = pygame.Surface((text.get_width()+1, text.get_height()+1)) pygame.draw.rect(image, (0, 0, 255), (1, 1, *text.get_size())) image.blit(text, (1, 1)) w, h = image.get_size() angle = 0 done = False while not done: clock.tick(60) for event in pygame.event.get(): if event.type == pygame.QUIT: done = True elif event.type == pygame.KEYDOWN: if event.key==pygame.K_ESCAPE: done = True pos = (screen.get_width()//2, screen.get_height()//2) pos = (200, 200) screen.fill(0) blitRotate(screen, image, pos, (w//2, h//2), angle) angle += 1 pygame.draw.line(screen, (0, 255, 0), (pos[0]-20, pos[1]), (pos[0]+20, pos[1]), 3) pygame.draw.line(screen, (0, 255, 0), (pos[0], pos[1]-20), (pos[0], pos[1]+20), 3) pygame.draw.circle(screen, (0, 255, 0), pos, 7, 0) pygame.display.flip() pygame.quit()
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