def test_inplace(self, u):
u_orig = u
u += (1, 1)
assert u == Vec2d(4, 5)
assert u is u_orig
u -= (1, 1)
assert u == Vec2d(3, 4)
assert u is u_orig
u *= 2
assert u == Vec2d(6, 8)
assert u is u_orig
u /= 2
assert u == Vec2d(3, 4)
assert u is u_orig
def main():
# Pede vetores de entrada para o usuário
print(__doc__)
pyxel.factory = Transform.rotation_degrees
pyxel.translation = Vec2d(0, 0)
pyxel.angle = 0
pyxel.M = pyxel.factory(pyxel.angle)
pyxel.points = list(square())
pyxel.transform = None
# Inicializa o módulo e roda!
pyxel.init(240, 180, caption="Retas", fps=30)
pyxel.mouse(True)
pyxel.run(update, draw)
def test_algebraic_operations(self, u, v):
assert u + v == Vec2d(u.x + v.x, u.y + v.y)
assert u - v == Vec2d(u.x - v.x, u.y - v.y)
assert u * 2 == Vec2d(2 * u.x, 2 * u.y)
assert 2 * u == Vec2d(2 * u.x, 2 * u.y)
assert u / 2 == Vec2d(u.x / 2, u.y / 2)
delta = (v - u) / 3
a, c = u + delta, u + 2 * delta
b = a + delta.rotated_degrees(-60)
yield from koch(u, a, n - 1)
yield from koch(a, b, n - 1)
yield from koch(b, c, n - 1)
yield from koch(c, v, n - 1)
def update():
try:
cmds.extend(islice(gen, 4))
except StopIteration:
pass
def draw():
pyxel.cls(pyxel.COLOR_BLACK)
colors = islice(cycle(range(1, 16)), pyxel.frame_count % 15, None)
for cmd, col in zip(cmds, colors):
pyxel.line(*cmd, col)
HEIGHTS = range(220, 50, -70)
gen = chain.from_iterable(koch(Vec2d(0, y), Vec2d(256, y), 4) for y in HEIGHTS)
cmds = []
pyxel.init(256, 256, caption="Koch Fractal", fps=30)
pyxel.run(update, draw)
def read_vec(msg) -> Vec2d:
"""
Pede uma entrada vetorial.
"""
x, _, y = input(msg).lstrip("[( ").rstrip(")] ").partition(",")
return Vec2d(float(x), float(y))
def jj():
return Vec2d(0, 1)
def ii():
return Vec2d(1, 0)
def v():
return Vec2d(1, 1)
def u():
return Vec2d(3, 4)