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fix for SPS Python course #3

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fix for SPS Python course #3

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43 changes: 21 additions & 22 deletions docs/bird/classes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@
WHITE = (255, 255, 255)

space = pymunk.Space()
space.gravity = 0, -900
space.gravity = 0, 900

draw_options = pymunk.pygame_util.DrawOptions(screen)

Expand All @@ -33,7 +33,6 @@ def post_solve_bird_wood(arbiter, space, _):
bird, wood = arbiter.shapes

if arbiter.total_impulse.length > 500:
print(arbiter.total_impulse.length)
space.remove(wood, wood.body)
for obj in Game.objects:
if obj.body == wood.body:
Expand Down Expand Up @@ -122,7 +121,7 @@ def draw_score(self):
screen.blit(self.score_img, (20, 20))

def set_ground(self):
shape = pymunk.Segment(space.static_body, (0, 10), (1200, 10), 4)
shape = pymunk.Segment(space.static_body, (0, 590), (1200, 590), 4)
shape.friction = 1
shape.collision_type = 3
space.add(shape)
Expand Down Expand Up @@ -158,7 +157,7 @@ def launch_bird(self, p0, p1):
"""Get two sling points to launch the bird."""
p0 = from_pygame(p0, screen)
p1 = from_pygame(p1, screen)
v = (Vec2d(p0) - Vec2d(p1)) * 10
v = (Vec2d(*p0) - Vec2d(*p1)) * 10
b = Bird(pos=p1)
b.body.apply_impulse_at_local_point(v)

Expand All @@ -169,31 +168,31 @@ def set_level(self, level):
self.set_ground()

if level == 1:
Column((1000, 100))
Column((1060, 100))
Beam((1030, 145))
Column((1000, 200))
Column((1060, 200))
Beam((1030, 245))
Pig((1140, 60))
Column((1000, 500))
Column((1060, 500))
Beam((1030, 455))
Column((1000, 400))
Column((1060, 400))
Beam((1030, 355))
Pig((1140, 540))

elif level == 2:
for i in range(2):
Column((1000, 60 + i*100))
Column((1060, 60 + i*100))
Beam((1030, 105 + i*100))
Pig((1000, 60))
Column((995, 540 - i*100))
Column((1060, 540 - i*100))
Beam((1030, 495 - i*100))
Pig((1020, 540))

elif level == 3:
for x in range(500, 800, 30):
Column((x, 60))
Pig((850, 60))
Column((x, 540))
Pig((850, 540))

elif level == 4:
Column((500, 60))
Column((500, 540))
for x in range(500, 700, 85):
Column((x+83, 60))
Beam((x+40, 105))
Pig((x+40, 50))
Column((x+83, 540))
Beam((x+40, 495))
Pig((x+40, 550))

Pig((850, 100))
Pig((850, 500))