def seek(self,target):
desired=Pvector(target.x,target.y)
desired.sub(self.location)
mag=desired.magnitude()
if mag<100:
setmag=mag*self.maxspeed/100
desired.setMag(setmag)
else:
desired.setMag(self.maxspeed)
desired.sub(self.velocity)
desired.limit(self.maxforce)
return desired
def seek_flow(self):
if self.location.x<0:
self.location.x=799
if self.location.x>799:
self.location.x=0
if self.location.y<0:
self.location.y=799
if self.location.y>799:
self.location.y=0
desired=Pvector(self.lookup(self.location).x,self.lookup(self.location).y)
desired.setMag(self.maxspeed)
desired.sub(self.velocity)
desired.limit(self.maxforce)
self.applyForce(desired)
def seperate(self,others):
sum=Pvector(0,0)
count=0
for v in others:
loc=self.location.get()
loc.sub(v.location)
d=loc.magnitude()
if d>0 and d<50:
loc.mult(1/d)
sum.add(loc)
count=count+1
if count!=0:
sum.mult(1/count)
sum.norm()
sum.mult(self.maxspeed)
sum.sub(self.velocity)
sum.limit(self.maxforce)
return sum
class vehicle:
def __init__(self,location=(400,400),velocity=(0,0),acceleration=(0,0),maxspeed=10,maxforce=3,field=None): # add field for field followers
self.location=Pvector(location[0],location[1])
self.velocity=Pvector(velocity[0],velocity[1])
self.acceleration=Pvector(acceleration[0],acceleration[1])
self.maxspeed=maxspeed
self.maxforce=maxforce
self.radius=8
self.field=field
def seek(self,target):
desired=Pvector(target.x,target.y)
desired.sub(self.location)
mag=desired.magnitude()
if mag<100:
setmag=mag*self.maxspeed/100
desired.setMag(setmag)
else:
desired.setMag(self.maxspeed)
desired.sub(self.velocity)
desired.limit(self.maxforce)
return desired
def seperate(self,others):
sum=Pvector(0,0)
count=0
for v in others:
loc=self.location.get()
loc.sub(v.location)
d=loc.magnitude()
if d>0 and d<50:
loc.mult(1/d)
sum.add(loc)
count=count+1
if count!=0:
sum.mult(1/count)
sum.norm()
sum.mult(self.maxspeed)
sum.sub(self.velocity)
sum.limit(self.maxforce)
return sum
def seek_flow(self):
if self.location.x<0:
self.location.x=799
if self.location.x>799:
self.location.x=0
if self.location.y<0:
self.location.y=799
if self.location.y>799:
self.location.y=0
desired=Pvector(self.lookup(self.location).x,self.lookup(self.location).y)
desired.setMag(self.maxspeed)
desired.sub(self.velocity)
desired.limit(self.maxforce)
self.applyForce(desired)
def lookup(self,location):
k=800/self.field.shape[0]
return self.field[m.floor(location.x/k)][m.floor(location.y/k)]
def update(self):
self.velocity.add(self.acceleration)
self.velocity.limit(self.maxspeed)
self.location.add(self.velocity)
self.acceleration.mult(0)
def applyForce(self,force):
self.acceleration.add(force)
def display(self):
theta=self.velocity.heading()+m.pi/2
stroke_weight(1)
stroke(0)
fill(0)
push_matrix()
translate(self.location.x,self.location.y)
rotate(theta)
begin_shape()
vertex(-self.radius,2*self.radius)
vertex(0,-2*self.radius)
vertex(self.radius,2*self.radius)
end_shape(CLOSE)
pop_matrix()
