def _replace_node(self, new_node):
"""
Move a new node into display, slow animation.
"""
if not self.is_running:
if debug_mode:
print("Not running")
if self._current_node:
self._current_node.kill()
self._current_node = None
return
if self._current_node:
self._current_node.do(
MoveTo(self._point_offscreen_left, 0.5 * self._move_time) +
CallFunc(self._current_node.kill))
self._current_node = UpdatableNode(new_node,
self._point_offscreen_right)
self._current_node.do(
Delay(0.5 * self._move_time) +
MoveTo(self._point_onscreen, 0.5 * self._move_time))
self.add(self._current_node)
def _replace_node(self, new_node):
"""
Move a new node into display, slow animation.
"""
if not self.is_running:
if debug_mode:
print("Not running")
if self._current_node:
self._current_node.kill()
self._current_node = None
return
if self._current_node:
self._current_node.do(MoveTo(self._point_offscreen_left, 0.5 * self._move_time) +
CallFunc(self._current_node.kill))
self._current_node = UpdatableNode(new_node, self._point_offscreen_right)
self._current_node.do(Delay(0.5 * self._move_time) +
MoveTo(self._point_onscreen, 0.5 * self._move_time))
self.add(self._current_node)
class CenterLayer(cocos.layer.base_layers.Layer):
"""
Center part of the screen, handling display of the main content.
Current content:
- Display the drink or mix currently centered on the bottom ticker;
- Display instructions on demand;
Added nodes are expected to anchor at the bottom-center. Their sizes should
respect the passed content sizes.
Parameters
----------
top_margin : int
Margin on top of the screen.
bottom_margin : int
Margin at the bottom of the screen.
left_margin : int
Margin at the left side of the screen.
right_margin : int
Margin at the right side of the screen.
move_time : float
Time in seconds to move an object in and out of the screen.
"""
def __init__(self,
top_margin=100,
bottom_margin=150,
left_margin=50,
right_margin=50,
move_time=1.0):
"""
Initialize the drink layer.
"""
super(CenterLayer, self).__init__()
self._top_margin = top_margin
self._bottom_margin = bottom_margin
self._left_margin = left_margin
self._right_margin = right_margin
self._screen_width, self._screen_height = cocos.director.director.get_window_size()
self._content_width = self._screen_width - self._left_margin - self._right_margin
self._content_height = self._screen_height - self._top_margin - self._bottom_margin
self._point_offscreen_right = (self._screen_width + (self._content_width / 2), self._bottom_margin)
self._point_offscreen_left = (0 - (self._content_width / 2), self._bottom_margin)
self._point_onscreen = (self._screen_width / 2, self._bottom_margin)
self._move_time = move_time
# Current node on display
self._current_node = None
# Contains details to construct a new node. None when nothing scheduled.
self._next_node = None
# Has a clear request been issued?
self._clear = False
def schedule_next_node(self, node_constructor, in_place=False):
"""
Schedule a node for display. The node will be instantiated in the render thread.
No queueing!
Multiple calls without a render pass in between, will result in only the last request being honored.
Parameters
----------
node_constructor
Constructor for the next node.
in_place
True if node should be replaced on current node location. False if it should be
brought in as a new node.
"""
self._next_node = (node_constructor, in_place)
def show_drink(self, drink, in_place=False):
"""
Change the drink currently being shown.
"""
if isinstance(drink, Mix):
node_type = MixDisplayConstructor
else:
node_type = DrinkHistoryDisplayConstructor
node_constructor = node_type(drink, self._content_width, self._content_height)
self.schedule_next_node(node_constructor,
in_place=in_place)
def show_explanation(self):
"""
Show an explanation of the game.
"""
self.schedule_next_node(ExplanationConstructor(self._content_height))
def show_trends(self, drinks):
"""
Show trends in prices.
"""
self.schedule_next_node(TrendDisplayConstructor(self._content_width,
self._content_height,
drinks))
def clear(self):
"""
Clear the display, removes the current content, even if it is locked
"""
self._clear = True
def draw(self, *args, **kwargs):
"""
Called by Cocos2D. Performs actions on next render loop.
"""
if self._clear:
self._replace_node(None)
self._clear = False
if self._next_node:
node_constructor, in_place = self._next_node
if node_constructor.ready:
self._next_node = None
if in_place:
if debug_mode:
print('Doing in place update')
self._update_node(node_constructor.get_node())
else:
if debug_mode:
print('Doing full update')
self._replace_node(node_constructor.get_node())
elif debug_mode:
print('Node still constructing')
def _replace_node(self, new_node):
"""
Move a new node into display, slow animation.
"""
if not self.is_running:
if debug_mode:
print("Not running")
if self._current_node:
self._current_node.kill()
self._current_node = None
return
if self._current_node:
self._current_node.do(MoveTo(self._point_offscreen_left, 0.5 * self._move_time) +
CallFunc(self._current_node.kill))
self._current_node = UpdatableNode(new_node, self._point_offscreen_right)
self._current_node.do(Delay(0.5 * self._move_time) +
MoveTo(self._point_onscreen, 0.5 * self._move_time))
self.add(self._current_node)
def _update_node(self, new_contents):
"""
Replace the contents of the current displayed node.
"""
if self._current_node:
self._current_node.update(new_contents)
class CenterLayer(cocos.layer.base_layers.Layer):
"""
Center part of the screen, handling display of the main content.
Current content:
- Display the drink or mix currently centered on the bottom ticker;
- Display instructions on demand;
Added nodes are expected to anchor at the bottom-center. Their sizes should
respect the passed content sizes.
Parameters
----------
top_margin : int
Margin on top of the screen.
bottom_margin : int
Margin at the bottom of the screen.
left_margin : int
Margin at the left side of the screen.
right_margin : int
Margin at the right side of the screen.
move_time : float
Time in seconds to move an object in and out of the screen.
"""
def __init__(self,
top_margin=100,
bottom_margin=150,
left_margin=50,
right_margin=50,
move_time=1.0):
"""
Initialize the drink layer.
"""
super(CenterLayer, self).__init__()
self._top_margin = top_margin
self._bottom_margin = bottom_margin
self._left_margin = left_margin
self._right_margin = right_margin
self._screen_width, self._screen_height = cocos.director.director.get_window_size(
)
self._content_width = self._screen_width - self._left_margin - self._right_margin
self._content_height = self._screen_height - self._top_margin - self._bottom_margin
self._point_offscreen_right = (self._screen_width +
(self._content_width / 2),
self._bottom_margin)
self._point_offscreen_left = (0 - (self._content_width / 2),
self._bottom_margin)
self._point_onscreen = (self._screen_width / 2, self._bottom_margin)
self._move_time = move_time
# Current node on display
self._current_node = None
# Contains details to construct a new node. None when nothing scheduled.
self._next_node = None
# Has a clear request been issued?
self._clear = False
def schedule_next_node(self, node_constructor, in_place=False):
"""
Schedule a node for display. The node will be instantiated in the render thread.
No queueing!
Multiple calls without a render pass in between, will result in only the last request being honored.
Parameters
----------
node_constructor
Constructor for the next node.
in_place
True if node should be replaced on current node location. False if it should be
brought in as a new node.
"""
self._next_node = (node_constructor, in_place)
def show_drink(self, drink, in_place=False):
"""
Change the drink currently being shown.
"""
if isinstance(drink, Mix):
node_type = MixDisplayConstructor
else:
node_type = DrinkHistoryDisplayConstructor
node_constructor = node_type(drink, self._content_width,
self._content_height)
self.schedule_next_node(node_constructor, in_place=in_place)
def show_explanation(self):
"""
Show an explanation of the game.
"""
self.schedule_next_node(ExplanationConstructor(self._content_height))
def show_trends(self, drinks):
"""
Show trends in prices.
"""
self.schedule_next_node(
TrendDisplayConstructor(self._content_width, self._content_height,
drinks))
def clear(self):
"""
Clear the display, removes the current content, even if it is locked
"""
self._clear = True
def draw(self, *args, **kwargs):
"""
Called by Cocos2D. Performs actions on next render loop.
"""
if self._clear:
self._replace_node(None)
self._clear = False
if self._next_node:
node_constructor, in_place = self._next_node
if node_constructor.ready:
self._next_node = None
if in_place:
if debug_mode:
print('Doing in place update')
self._update_node(node_constructor.get_node())
else:
if debug_mode:
print('Doing full update')
self._replace_node(node_constructor.get_node())
elif debug_mode:
print('Node still constructing')
def _replace_node(self, new_node):
"""
Move a new node into display, slow animation.
"""
if not self.is_running:
if debug_mode:
print("Not running")
if self._current_node:
self._current_node.kill()
self._current_node = None
return
if self._current_node:
self._current_node.do(
MoveTo(self._point_offscreen_left, 0.5 * self._move_time) +
CallFunc(self._current_node.kill))
self._current_node = UpdatableNode(new_node,
self._point_offscreen_right)
self._current_node.do(
Delay(0.5 * self._move_time) +
MoveTo(self._point_onscreen, 0.5 * self._move_time))
self.add(self._current_node)
def _update_node(self, new_contents):
"""
Replace the contents of the current displayed node.
"""
if self._current_node:
self._current_node.update(new_contents)
