def run():
# init sdl and get window up
sdl2ext.init()
window = sdl2ext.Window("Traction Edge RL", size=(800, 600))
window.show()
#create hardware accelerated context for drawing on
context = sdl2ext.RenderContext(window, index=-1, flags=SDL_RENDERER_ACCELERATED)
#create our custom renderer with the context
renderer = systems.Renderer(context)
# init world
world = sdl2ext.World()
world.add_system(renderer)
# create our sprites
factory = sdl2ext.SpriteFactory(sprite_type=sdl2ext.TEXTURE, renderer=context)
sp_player = factory.from_color(WHITE, size=(32,32))
#create player
player = entities.Creature(world, sp_player, 100, 400)
#main loop
running = True
while running:
events = sdl2ext.get_events()
for event in events:
if event.type == SDL_QUIT:
running = False
break
SDL_Delay(10)
world.process()
return
def run():
# print sdl2ext.get_image_formats()
# return
sdl2ext.init()
window = sdl2ext.Window("The Pong Game", size=(800, 600))
window.show()
world = sdl2ext.World()
factory = sdl2ext.SpriteFactory(sdl2ext.SOFTWARE)
sp_ball = factory.from_color(WHITE, size=(20, 20))
sp_paddle1 = factory.from_color(WHITE, size=(20, 100))
sp_paddle2 = factory.from_color(WHITE, size=(20, 100))
movement = MovementSystem(0, 0, 800, 600)
collision = CollisionSystem(0, 0, 800, 600, 390, 290)
aicontroller = TrackingAIController(0, 600)
spriterenderer = SoftwareRenderer(window)
world.add_system(aicontroller)
world.add_system(movement)
world.add_system(collision)
world.add_system(spriterenderer)
player1 = Player(world, sp_paddle1, 0, 250)
player2 = Player(world, sp_paddle2, 780, 250, True)
ball = Ball(world, sp_ball, 390, 290)
ball.velocity.vx = -3
collision.ball = ball
aicontroller.ball = ball
collision.player1 = player1
collision.player2 = player2
running = True
while running:
events = sdl2ext.get_events()
for event in events:
if event.type == SDL_QUIT:
running = False
break
if event.type == SDL_KEYDOWN:
if event.key.keysym.sym == SDLK_UP:
player1.velocity.vy = -3
elif event.key.keysym.sym == SDLK_DOWN:
player1.velocity.vy = 3
elif event.type == SDL_KEYUP:
if event.key.keysym.sym in (SDLK_UP, SDLK_DOWN):
player1.velocity.vy = 0
SDL_Delay(10)
world.process()
return 0
def main():
sdl2ext.init()
TTF_Init()
window = sdl2ext.Window("Text display", size=(800, 600))
window.show()
renderer = sdl2ext.RenderContext(window)
factory = sdl2ext.SpriteFactory(sdl2ext.TEXTURE, renderer=renderer)
world = sdl2ext.World()
fps = FPSCounter(world, renderer=renderer)
spriteRenderer = factory.create_sprite_renderer()
fpsController = FPSController()
world.add_system(fpsController)
world.add_system(spriteRenderer)
running = True
while running:
for event in sdl2ext.get_events():
if event.type == sdlevents.SDL_QUIT:
running = False
break
elif event.type == sdlevents.SDL_USEREVENT:
entity = cast(event.user.data1,
POINTER(py_object)).contents.value
entity.textsprite.text = "FPS: " + str(entity.fps.counter)
entity.fps.counter = 0
renderer.clear()
world.process()
TTF_Quit()
sdl2ext.quit()
return 0
def run():
# Create the environment, in which our particles will exist.
world = sdl2ext.World()
# Set up the globally available information about the current mouse
# position. We use that information to determine the emitter
# location for new particles.
world.mousex = 400
world.mousey = 300
# Create the particle engine. It is just a simple System that uses
# callback functions to update a set of components.
engine = particles.ParticleEngine()
# Bind the callback functions to the particle engine. The engine
# does the following on processing:
# 1) reduce the life time of each particle by one
# 2) create a list of particles, which's life time is 0 or below.
# 3) call createfunc() with the world passed to process() and
# the list of dead particles
# 4) call updatefunc() with the world passed to process() and the
# set of particles, which still are alive.
# 5) call deletefunc() with the world passed to process() and the
# list of dead particles. deletefunc() is respsonible for
# removing the dead particles from the world.
engine.createfunc = createparticles
engine.updatefunc = updateparticles
engine.deletefunc = deleteparticles
world.add_system(engine)
# We create all particles at once before starting the processing.
# We also could create them in chunks to have a visually more
# appealing effect, but let's keep it simple.
createparticles(world, None, 300)
# Initialize the video subsystem, create a window and make it visible.
sdl2ext.init()
window = sdl2ext.Window("Particles", size=(800, 600))
window.show()
# Create a hardware-accelerated sprite factory. The sprite factory requires
# a rendering context, which enables it to create the underlying textures
# that serve as the visual parts for the sprites.
renderer = sdl2ext.RenderContext(window)
factory = sdl2ext.SpriteFactory(sdl2ext.TEXTURE, renderer=renderer)
# Create a set of images to be used as particles on rendering. The
# images are used by the ParticleRenderer created below.
images = (factory.from_image(RESOURCES.get_path("circle.png")),
factory.from_image(RESOURCES.get_path("square.png")),
factory.from_image(RESOURCES.get_path("star.png")))
# Center the mouse on the window. We use the SDL2 functions directly
# here. Since the SDL2 functions do not know anything about the
# sdl2.ext.Window class, we have to pass the window's SDL_Window to it.
SDL_WarpMouseInWindow(window.window, world.mousex, world.mousey)
# Hide the mouse cursor, so it does not show up - just show the
# particles.
SDL_ShowCursor(0)
# Create the rendering system for the particles. This is somewhat
# similar to the SoftSpriteRenderer, but since we only operate with
# hundreds of particles (and not sprites with all their overhead),
# we need an own rendering system.
particlerenderer = ParticleRenderer(renderer, images)
world.add_system(particlerenderer)
# The almighty event loop. You already know several parts of it.
running = True
while running:
for event in sdl2ext.get_events():
if event.type == SDL_QUIT:
running = False
break
if event.type == SDL_MOUSEMOTION:
# Take care of the mouse motions here. Every time the
# mouse is moved, we will make that information globally
# available to our application environment by updating
# the world attributes created earlier.
world.mousex = event.motion.x
world.mousey = event.motion.y
# We updated the mouse coordinates once, ditch all the
# other ones. Since world.process() might take several
# milliseconds, new motion events can occur on the event
# queue (10ths to 100ths!), and we do not want to handle
# each of them. For this example, it is enough to handle
# one per update cycle.
SDL_FlushEvent(SDL_MOUSEMOTION)
break
world.process()
SDL_Delay(1)
sdl2ext.quit()
return 0