def setup(self):
"""
Setup that takes more time. Shows a loading screen, and initializes
SDL to poll joysticks. Should be called after pyglet's run_app
function has been started.
"""
if self.load_joystick:
print("Loading SDL")
SDL.start()
SDL.SDL_Init(SDL.SDL_INIT_JOYSTICK)
print("Done loading SDL")
self.camera = Camera(self)
self.tickers.append(self.camera)
pyglet.clock.schedule_interval(self.tick, 1.0/60)
while self.setup_hook:
self.setup_hook.pop().setup()
self.init = True
class Engine(object):
"""
Handles video, and input. Input is from keyboard, mouse, or joystick, and
can be both event driver or polled.
"""
def __init__(self, load_joystick=False):
self.init = False
self.load_joystick = load_joystick
self.tickers = []
self.drawers = {
'background': [],
'foreground': [],
'hud': [],
'preload': [],
}
self.mousers = {
'press': [],
'release': [],
'move': [],
'drag': [],
}
self.key_status = {}
self.mouse_status = {}
if load_joystick:
self.joystick_status = {}
self.window = pyglet.window.Window(1024, 768, vsync=False)
self.setup_gl()
# Clear the screen, to prevent junk on the first frame
self.window.clear()
self.window.flip()
for event in [self.on_draw, self.on_key_press, self.on_key_release,
self.on_mouse_press, self.on_mouse_release,
self.on_mouse_motion, self.on_mouse_drag]:
self.window.event(event)
self.drawers['preload'].append(pyglet.text.Label(
'Loading...', font_name='Mono', font_size=36, color=(255, 255, 255, 127),
x=self.window.width / 2, y=self.window.height / 2,
anchor_x='center', anchor_y='center'))
self.setup_hook = []
def setup_gl(self):
# Enable opacity
glEnable(GL_BLEND)
def setup(self):
"""
Setup that takes more time. Shows a loading screen, and initializes
SDL to poll joysticks. Should be called after pyglet's run_app
function has been started.
"""
if self.load_joystick:
print("Loading SDL")
SDL.start()
SDL.SDL_Init(SDL.SDL_INIT_JOYSTICK)
print("Done loading SDL")
self.camera = Camera(self)
self.tickers.append(self.camera)
pyglet.clock.schedule_interval(self.tick, 1.0/60)
while self.setup_hook:
self.setup_hook.pop().setup()
self.init = True
def addDrawer(self, obj, where='foreground'):
self.drawers[where].append(obj)
def subscribeMouse(self, obj, events=['press', 'release', 'move', 'drag']):
for ev in events:
self.mousers[ev].append(obj)
def tick(self, t):
"""
To be called as often as possible, for things like physics calculations
and control updating. No drawing or other visual interaction.
:param t: The amount of time in seconds since the last call to tick.
"""
for obj in self.tickers:
obj.tick(t)
def on_draw(self):
self.window.clear()
if self.init:
glPushMatrix()
self.camera.focus()
for obj in self.drawers['background']:
obj.draw()
for obj in self.drawers['foreground']:
obj.draw()
glPopMatrix()
for obj in self.drawers['hud']:
obj.draw()
else:
for obj in self.drawers['preload']:
obj.draw()
self.window.flip()
self.setup()
def on_key_press(self, symbol, modifers):
self.key_status[symbol] = True
def on_key_release(self, symbol, modifiers):
self.key_status[symbol] = False
def on_mouse_press(self, x, y, button, modifiers):
self.mouse_status[button] = True
for obj in self.mousers['press']:
try:
pos = obj.pos
except:
pos = Vector()
coord = pos + Vector(x, y)
obj.on_mouse_press(*coord.to('v2t'), button=button,
modifiers=modifiers)
def on_mouse_release(self, x, y, button, modifiers):
self.mouse_status[button] = False
for obj in self.mousers['release']:
try:
pos = obj.pos
except:
pos = Vector()
coord = pos + Vector(x, y)
obj.on_mouse_release(x, y, button, modifiers)
def on_mouse_motion(self, x, y, dx, dy):
self.mouse_status['x'] = x
self.mouse_status['y'] = y
self.mouse_status['dx'] = dx
self.mouse_status['dy'] = dy
def on_mouse_drag(self, x, y, dx, dy, button, modifiers):
self.on_mouse_motion(x, y, dx, dy)
