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Add simple loading screen #74

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9218107
Add loading text at start since first draw loop takes long time
m1c0l Jun 14, 2016
6ae0bd7
Delete loading label after it's used
m1c0l Jun 15, 2016
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42 changes: 30 additions & 12 deletions main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -484,6 +484,13 @@ def __init__(self, *args, **kwargs):
x=10, y=self.height - 10, anchor_x='left', anchor_y='top',
color=(0, 0, 0, 255))

# Boolean whether to display loading screen
self.is_initializing = True
# Loading screen label displayed in center of canvas
self.loading_label = pyglet.text.Label('', font_name='Arial', font_size=100,
x=self.width // 2, y=self.height // 2, anchor_x='center', anchor_y='center',
color=(0, 0, 0, 255))

# This call schedules the `update()` method to be called
# TICKS_PER_SEC. This is the main game event loop.
pyglet.clock.schedule_interval(self.update, 1.0 / TICKS_PER_SEC)
Expand Down Expand Up @@ -803,13 +810,18 @@ def on_draw(self):

"""
self.clear()
self.set_3d()
glColor3d(1, 1, 1)
self.model.batch.draw()
self.draw_focused_block()
if not self.is_initializing:
self.set_3d()
glColor3d(1, 1, 1)
self.model.batch.draw()
self.draw_focused_block()
self.set_2d()
self.draw_reticle()
self.set_2d()
self.draw_label()
self.draw_reticle()
if self.is_initializing:
self.loading_label.delete()
self.is_initializing = False

def draw_focused_block(self):
""" Draw black edges around the block that is currently under the
Expand All @@ -830,18 +842,24 @@ def draw_label(self):
""" Draw the label in the top left of the screen.

"""
x, y, z = self.position
self.label.text = '%02d (%.2f, %.2f, %.2f) %d / %d' % (
pyglet.clock.get_fps(), x, y, z,
len(self.model._shown), len(self.model.world))
self.label.draw()
if not self.is_initializing:
x, y, z = self.position
self.label.text = '%02d (%.2f, %.2f, %.2f) %d / %d' % (
pyglet.clock.get_fps(), x, y, z,
len(self.model._shown), len(self.model.world))
self.label.draw()
else:
# Only draw the loading screen during the first draw loop
self.loading_label.text = 'Loading...'
self.loading_label.draw()

def draw_reticle(self):
""" Draw the crosshairs in the center of the screen.

"""
glColor3d(0, 0, 0)
self.reticle.draw(GL_LINES)
if not self.is_initializing:
glColor3d(0, 0, 0)
self.reticle.draw(GL_LINES)


def setup_fog():
Expand Down