class Repeller:
def __init__(self,x=400,y=400):
self.loc=Pvector(x,y)
self.dir=None
def calculateForce(self,location):
self.dir=Pvector(location.x,location.y)
self.dir.sub(self.loc)
self.dir.mult(150/(self.dir.magnitude()**3))
def display(self):
no_stroke()
fill(0)
ellipse(self.loc.x,self.loc.y,70,70)
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
