Ok, so our bird now randomly flies around, but that’s about it. When the bird is in the same cell as Myrtle, we want to sent Myrtle back to her start position. That means we need to know when the bird and Myrtle are both in the same cell.
Add the following to MoveObject.py:
# MoveObject.py
def is_collision(self):
##
if self.game.myrtle.current_position == self.game.bird.current_position:
return True
return False
##
pass
Then call that function when either the bird or Myrtle move.
Add the following to MoveObject.py:
# MoveObject.py
def move_forward(self):
##
direction = self.heading()
if direction == 90.0: # facing up
new_pos = self.get_up_position()
if direction == 0.0: # facing right
new_pos = self.get_right_position()
if direction == 270.0: # facing down
new_pos = self.get_down_position()
if direction == 180.0: # facing left
new_pos = self.get_left_position()
if not self.game.current_world.cell_contains_obstacle(new_pos):
self.current_position = new_pos
self.forward(CELL_WIDTH)
if self.allowed_through_portal:
if self.game.current_world.cell_contains_portal(new_pos):
self.current_position = new_pos
self.forward(CELL_WIDTH)
self.enter_portal()
+ if self.is_collision():
+ self.game.myrtle.goto_start_position()
##
pass
Test it out by moving Myrtle into the same cell as the bird - Myrtle should reappear at her start position.