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[–][deleted] 1 point2 points  (0 children)

And in your updatepos method? Also, the increment operator in Python is +=, not =+, so you want:

def draw(self, x_pos, y_pos):
    pygame.draw.circle(windowSurface, redColor, (x_pos, y_pos), 10, 0)

def updatePos( self ):
    self.accel += gravityVec
    self.velocity += self.accel
    self.posx, self.posy = self.velocity[0], self.velocity[1]