def __init__(self, motions=None, mass=1):
"""Create a physical object using its motions, by default a physical
has 2 motions but it can have more.
By default a physical object has a motion and a moment that are both
nulls and 2 dimensionals."""
if motions is None:
motions = [Motion.null(n=3, d=2), Motion.null(n=2, d=1)]
self.motions = motions
self.mass = mass
def __init__(self,form,position,velocity,max_duration=3):
"""Create body using form and optional name."""
motion=Motion(position,velocity)
moment=Motion.null(n=1,d=1)
super().__init__(form,motion,moment)
self.to=time.time()
self.alive=True
self.max_duration=max_duration
def delMotion(self):
"""Set the motion to null."""
self.motion = Motion.null()
def __init__(self, motion=Motion.null(), mass=1, color=mycolors.WHITE):
"""Create a material point."""
self.motion = motion
self.mass = mass
self.color = color
def null(n=3, d=2):
"""Return the neutral material point."""
return MaterialPoint(Motion.null(n=n, d=d))
def __init__(self,position):
"""Create body using form and optional name."""
form=Form([Point(x,y) for (x,y) in [(0,1),(-1,-1),(1,-1)]])
motion=Motion(position,Vector.null(d=2),Vector.null(d=2))
moment=Motion.null(d=1,n=2)
super().__init__(form,motion,moment)
def directUpdate(self, dt=1):
"""Update all the objects without accounting for their collisions."""
for object in self.objects:
object.update(dt)
def collideWithGroup(self, group):
"""Deal with the collisions of the object of the group with another group."""
pass
if __name__ == "__main__":
from mysurface import Context
context = Context(name="Material Group Test", fullscreen=True)
f1 = MaterialForm.random(corners=[-10, -10, 10, 10])
f1.motion = Motion(Vector(0, 20), Vector(0, -5, 0), Vector(0, -1))
f2 = MaterialForm.random(corners=[-10, -10, 10, 10])
#f2.fill=True
f2.motion = Motion.null()
g = MaterialGroup(f1, f2)
t = g.getCollisionInstant(1)
print(t)
while context.open:
context.check()
context.control()
context.clear()
context.show()
g.update(dt=0.01)
g.show(context)
context.flip()
def createFromNumber(cls, n, nm=3, d=2):
"""Create n motions."""
return cls([Motion.null(n=nm, d=d) for i in range(n)])
