Re: [pygame] Tiling a Rotated Bitmap

[Kamilche <kamilche@xxxxxxxxxxxx>]

Well, that was interesting, but also didn't work. It's similar to my 
attempt of tiling then rotating then cutting a piece out of the middle.

I've modified the code to show what happens when that tile is tiled. 
Interesting, tho!

--Kamilche

import pygame
import math

filename=r"G:\Incarnation\Models\Textures\test.png"
SCREENWIDTH = 800
SCREENHEIGHT = 600

def Rotated(surf, degrees = 0):
   # rotate surface
   rotsurf = pygame.transform.rotozoom(surf, degrees, 1)

   # compute the offsets needed
   c = math.cos(math.radians(degrees))
   s = math.sin(math.radians(degrees))
   widthx = (surf.get_width() - 1) * c
   widthy = (surf.get_width() - 1) * s
   heightx = (surf.get_height() - 1) * s
   heighty = (surf.get_height() - 1) * c


   # the 8 positions, corners first
   positions = [
       (widthx, -widthy),
       (-widthx, widthy),
       (heightx, heighty),
       (-heightx, -heighty),
   ]

   rot_copy = rotsurf.copy()

   # apply the blits
   for pos in positions:
       rotsurf.blit(rot_copy, pos)
   return rotsurf

def Tile(surf, pic, rect):
    x = rect[0]
    y = rect[1]
    while y < rect[3]:
        x = 0
        while x < rect[2]:
            surf.blit(pic, [x, y])
            x += pic.get_width()
        y += pic.get_height()


def main():
   pygame.init()
   bg = pygame.display.set_mode((SCREENWIDTH, SCREENHEIGHT), 0, 32)

   quit = 0
   pic = pygame.image.load(filename).convert_alpha()
   pic2 = pic
   while not quit:
       bg.fill((255, 0, 0, 255))
       bg.blit(pic2, (0, 0))
       Tile(bg, pic2, [0, 200, 512, 512])
       pygame.display.flip()
       for e in pygame.event.get():
           if e.type == pygame.QUIT:
               quit = 1
               break
           elif e.type == pygame.MOUSEMOTION:
               pic2 = Rotated(pic, e.pos[0])

   pygame.quit()

main()