def place(self):
'''
Place the tag according to the angle and radius properties. Return True
if the tag is entirely on radar, False otherwise.
'''
cx, cy = self.plane.trail[0]
rad = radians(self.angle)
ox = U.rint(cos(rad) * self.radius)
oy = -U.rint(sin(rad) * self.radius) #minus because of screen coordinates
x, y = cx + ox, cy + oy
self.rect = U.get_rect_at_centered_pos(self.image, (x, y))
return self.radar_rect.contains(self.rect)
def update(self, *args):
status = self.data_source.sprite_index
heading = self.data_source.heading
if status != self.last_status or heading != self.last_heading:
img = self.sprites[status]
# The following line needs a bit of explanation:
# 1. plane heading in the simulation is defined as CW degrees from
# North, but on screen (and for pygame) they are CCW from East
# 2. screen Y axis has reversed polarity from simulation one (it
# decreases going UP!!
# The CCW vs CW is compensated by sign reversal. The 90 degrees
# offset is compensated by the orientation of the original sprite
# (North rather than East).
heading *= -1
self.image = self.rotoscale(img, heading, S.SPRITE_SCALING,
S.MIN_PLANE_ICON_SIZE)
self.rect = \
U.get_rect_at_centered_pos(self.image, self.data_source.trail[0])
def update(self):
STEP = U.rint(S.PING_PERIOD / 1000.0 + 1) #arbitrary: ping in sec + 1
self.image.fill(S.BLACK)
delta = U.rint(self.gamelogic.score) - self.score
if abs(delta) < STEP:
colour = S.WHITE
variation = delta
elif delta > 0:
colour = S.OK_COLOUR
variation = STEP
else:
colour = S.KO_COLOUR
variation = -STEP
self.score += variation
score = str(self.score).zfill(6)
score_img = self.fontobj.render(score, True, colour)
score_img.subsurface(score_img.get_bounding_rect()).copy()
pos = U.get_rect_at_centered_pos(score_img, self.rect.center)
self.image.blit(score_img, pos)
def update(self, *args):
status = self.data_source.sprite_index
if status != self.last_status:
self.image = self.sprites[self.time_shift][status]
rect = self.data_source.trail[self.time_shift]
self.rect = U.get_rect_at_centered_pos(self.image, rect)
