Exemplo n.º 1
0
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