Movement and alignment
Contents
Movement and alignment¶
With the act(self) method you can move tokens in regular intervals. Now you learn how to move your tokens specifically in one direction.
The move() function¶
The central function for moving is the move() function.
With the function move() you can move your object by one or more steps:
Example¶
@player.register
def act(self):
self.direction = "right"
self.move()
The token player looks to the right and then moves one step forward.
This is repeated periodically when the act() method is called.
Complete example:
from miniworldmaker import *
board = TiledBoard()
board.columns = 20
board.rows = 8
board.tile_size = 42
board.add_background("images/soccer_green.jpg")
player = token()
player.add_costume("images/player_1.png")
@player.register
def act(self):
self.direction = "right"
self.move()
board.run()
move_left, move_right, …¶
With the move() function, the token always moves to the current direction.
But you can also make the token move directly in a direction. This can be done with the functions move_right(), move_left(), move_up() and m̀ove_down().
Example¶
This code moves the token in the act() method to the right:
@player.register
def act(self):
self.move_right()
move_in_direction¶
Alternatively you can move the token in an arbitrary direction with move_in_direction().
Example:¶
This moves the token diagonally right upwards (direction 45°).
@player.register
def act(self):
self.move_in_direction(45)
Extensive example¶
Move in the direction of the mouse position:
import miniworldmaker
board = miniworldmaker.PixelBoard()
board.columns = 400
board.rows = 400
board.add_background("images/soccer_green.jpg")
player = miniworldmaker.Token()
player.add_costume("images/player_1.png")
@player.register
def act(self):
self.move_in_direction(self.board.get_mouse_position())
board.run()
Change the direction¶
You can change the direction with the following commands:
player.turn_left(degrees)- Turns the token degrees to the left.player.turn_right(degrees)- Turns the token degrees to the right.player.direction = degrees- Gives the player object the absolute direction degrees.
The value degrees can be specified here either as a number or as text as in the following graphic (0: up, 180, down, 90 right, -90 left):
Example:¶
self.direction = 90 refers to its own orientation, for example, self.move_in_direction() calls its own move_in_direction method.
Extensive example¶
In the following example, the token moves in a circle:
from miniworldmaker import *
board = PixelBoard()
board.columns = 400
board.rows = 400
board.add_background("images/soccer_green.jpg")
player = token()
player.add_costume("images/player_1.png")
player.position = (200, 200)
@player.register
def act(self):
self.direction = self.board.frame
self.move()
board.run()