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#!/usr/bin/env python
""" pg.examples.testsprite
Like the testsprite.c that comes with libsdl, this pygame version shows
lots of sprites moving around.
It is an abomination of ugly code, and mostly used for testing.
See pg.examples.aliens for some prettyier code.
"""
import sys
import os
from random import randint
from time import time
from typing import List
import pygame as pg
main_dir = os.path.split(os.path.abspath(__file__))[0]
data_dir = os.path.join(main_dir, "data")
# use this to use update rects or not.
# If the screen is mostly full, then update rects are not useful.
update_rects = True
if "-update_rects" in sys.argv:
update_rects = True
if "-noupdate_rects" in sys.argv:
update_rects = False
use_static = False
if "-static" in sys.argv:
use_static = True
use_layered_dirty = False
if "-layered_dirty" in sys.argv:
update_rects = True
use_layered_dirty = True
flags = 0
if "-flip" in sys.argv:
flags ^= pg.DOUBLEBUF
if "-fullscreen" in sys.argv:
flags ^= pg.FULLSCREEN
if "-sw" in sys.argv:
flags ^= pg.SWSURFACE
use_rle = True
if "-hw" in sys.argv:
flags ^= pg.HWSURFACE
use_rle = False
if "-scaled" in sys.argv:
flags ^= pg.SCALED
screen_dims = [640, 480]
if "-height" in sys.argv:
i = sys.argv.index("-height")
screen_dims[1] = int(sys.argv[i + 1])
if "-width" in sys.argv:
i = sys.argv.index("-width")
screen_dims[0] = int(sys.argv[i + 1])
use_alpha = "-alpha" in sys.argv
print(screen_dims)
##class Thingy(pg.sprite.Sprite):
## images = None
## def __init__(self):
## pg.sprite.Sprite.__init__(self)
## self.image = Thingy.images[0]
## self.rect = self.image.get_rect()
## self.rect.x = randint(0, screen_dims[0])
## self.rect.y = randint(0, screen_dims[1])
## #self.vel = [randint(-10, 10), randint(-10, 10)]
## self.vel = [randint(-1, 1), randint(-1, 1)]
##
## def move(self):
## for i in [0, 1]:
## nv = self.rect[i] + self.vel[i]
## if nv >= screen_dims[i] or nv < 0:
## self.vel[i] = -self.vel[i]
## nv = self.rect[i] + self.vel[i]
## self.rect[i] = nv
class Thingy(pg.sprite.DirtySprite):
images: List[pg.Surface] = []
def __init__(self):
## pg.sprite.Sprite.__init__(self)
pg.sprite.DirtySprite.__init__(self)
self.image = Thingy.images[0]
self.rect = self.image.get_rect()
self.rect.x = randint(0, screen_dims[0])
self.rect.y = randint(0, screen_dims[1])
# self.vel = [randint(-10, 10), randint(-10, 10)]
self.vel = [randint(-1, 1), randint(-1, 1)]
self.dirty = 2
def update(self, *args, **kwargs):
for i in [0, 1]:
nv = self.rect[i] + self.vel[i]
if nv >= screen_dims[i] or nv < 0:
self.vel[i] = -self.vel[i]
nv = self.rect[i] + self.vel[i]
self.rect[i] = nv
class Static(pg.sprite.DirtySprite):
images: List[pg.Surface] = []
def __init__(self):
pg.sprite.DirtySprite.__init__(self)
self.image = Static.images[0]
self.rect = self.image.get_rect()
self.rect.x = randint(0, 3 * screen_dims[0] // 4)
self.rect.y = randint(0, 3 * screen_dims[1] // 4)
def main(
update_rects=True,
use_static=False,
use_layered_dirty=False,
screen_dims=(640, 480),
use_alpha=False,
flags=0,
):
"""Show lots of sprites moving around
Optional keyword arguments:
update_rects - use the RenderUpdate sprite group class (default True)
use_static - include non-moving images (default False)
use_layered_dirty - Use the FastRenderGroup sprite group (default False)
screen_dims - Pygame window dimensions (default [640, 480])
use_alpha - use alpha blending (default False)
flags - additional display mode flags (default no additional flags)
"""
if use_layered_dirty:
update_rects = True
pg.init() # needed to initialise time module for get_ticks()
pg.display.init()
# if "-fast" in sys.argv:
screen = pg.display.set_mode(screen_dims, flags, vsync="-vsync" in sys.argv)
# this is mainly for GP2X, so it can quit.
pg.joystick.init()
num_joysticks = pg.joystick.get_count()
if num_joysticks > 0:
stick = pg.joystick.Joystick(0)
stick.init() # now we will receive events for the joystick
screen.fill([0, 0, 0])
pg.display.flip()
sprite_surface = pg.image.load(os.path.join(data_dir, "asprite.bmp"))
sprite_surface2 = pg.image.load(os.path.join(data_dir, "static.png"))
if use_rle:
sprite_surface.set_colorkey([0xFF, 0xFF, 0xFF], pg.SRCCOLORKEY | pg.RLEACCEL)
sprite_surface2.set_colorkey([0xFF, 0xFF, 0xFF], pg.SRCCOLORKEY | pg.RLEACCEL)
else:
sprite_surface.set_colorkey([0xFF, 0xFF, 0xFF], pg.SRCCOLORKEY)
sprite_surface2.set_colorkey([0xFF, 0xFF, 0xFF], pg.SRCCOLORKEY)
if use_alpha:
sprite_surface = sprite_surface.convert_alpha()
sprite_surface2 = sprite_surface2.convert_alpha()
else:
sprite_surface = sprite_surface.convert()
sprite_surface2 = sprite_surface2.convert()
Thingy.images = [sprite_surface]
if use_static:
Static.images = [sprite_surface2]
if len(sys.argv) > 1:
try:
numsprites = int(sys.argv[-1])
except Exception:
numsprites = 100
else:
numsprites = 100
sprites = None
if use_layered_dirty:
## sprites = pg.sprite.FastRenderGroup()
sprites = pg.sprite.LayeredDirty()
else:
if update_rects:
sprites = pg.sprite.RenderUpdates()
else:
sprites = pg.sprite.Group()
for i in range(0, numsprites):
if use_static and i % 2 == 0:
sprites.add(Static())
sprites.add(Thingy())
frames = 0
start = time()
background = pg.Surface(screen.get_size())
background = background.convert()
background.fill([0, 0, 0])
going = True
while going:
if not update_rects:
screen.fill([0, 0, 0])
## for sprite in sprites:
## sprite.move()
if update_rects:
sprites.clear(screen, background)
sprites.update()
rects = sprites.draw(screen)
if update_rects:
pg.display.update(rects)
else:
pg.display.flip()
for event in pg.event.get():
if event.type in [pg.QUIT, pg.KEYDOWN, pg.QUIT, pg.JOYBUTTONDOWN]:
going = False
frames += 1
end = time()
print(f"FPS: {frames / (end - start):f}")
pg.quit()
if __name__ == "__main__":
main(update_rects, use_static, use_layered_dirty, screen_dims, use_alpha, flags)
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