def step_impl(context):
context.v = Vector(4, -4, 3)
def step_impl(context):
assert cross(context.a, context.b) == Vector(-1, 2, -1)
def step_impl(context):
assert cross(context.b, context.a) == Vector(1, -2, 1)
def step_impl(context):
context.a = Vector(1, 2, 3)
def step_impl(context):
context.b = Vector(2, 3, 4)
def step_impl(context):
context.v2 = Vector(5, 6, 7)
def step_impl(context):
assert context.v.normal == Vector(0.26726, 0.53452, 0.80178)
def step_impl(context):
context.v = Vector(-1, -2, -3)
def step_impl(context):
context.v = Vector(4, 0, 0)
def step_impl(context):
assert context.zero - context.v == Vector(-1, 2, -3)
def step_impl(context):
context.v = Vector(0, 1, 0)
def step_impl(context):
context.v = Vector(1, -2, 3)
def step_impl(context):
context.zero = Vector(0, 0, 0)
def step_impl(context):
assert context.v1 - context.v2 == Vector(-2, -4, -6)
gravity: Vector
wind: Vector
def __init__(self, gravity: Vector, wind: Vector):
self.gravity = gravity
self.wind = wind
def tick(proj: Projectile, env: Environment):
position = proj.position + proj.velocity
velocity = proj.velocity + env.gravity + env.wind
return Projectile(position, velocity)
start = Point(0, 1, 0)
velocity = Vector(1, 1.8, 0).normal * 11.25
p = Projectile(start, velocity)
gravity = Vector(0, -0.1, 0)
wind = Vector(-0.01, 0, 0)
e = Environment(gravity, wind)
c = Canvas(900, 550)
color = Color(1.0, 0, 0)
while p.position.y >= 0:
c.set_pixel(int(p.position.x), 500 - int(p.position.y), color)
p = tick(p, e)
print(c.ppm)
def step_impl(context):
print(context.v.normal)
assert context.v.normal == Vector(1, 0, 0)
class Projectile:
position: Point
velocity: Vector
def __init__(self, position: Point, velocity: Vector):
self.position = position
self.velocity = velocity
class Environment:
gravity: Vector
wind: Vector
def __init__(self, gravity: Vector, wind: Vector):
self.gravity = gravity
self.wind = wind
def tick(proj: Projectile, env: Environment):
position = proj.position + proj.velocity
velocity = proj.velocity + env.gravity + env.wind
return Projectile(position, velocity)
p = Projectile(Point(0, 1, 0), Vector(1, 1, 0).normal)
e = Environment(Vector(0, -0.1, 0), Vector(-0.01, 0, 0))
while p.position.y >= 0:
print(p.position)
p = tick(p, e)
def step_impl(context):
context.v1 = Vector(3, 2, 1)