In this article, we will discuss How to move the players using arcade in Python.
Automatic Movements
We can easily move our players in any particular direction in the arcade. For this, we are going to draw a rectangle using the draw_rectangle_filled() method then we will change the x coordinate of this rectangle.
Syntax: arcade.draw_rectangle_filled(x, y, width, height, color, angle)
Parameters:
- x : x coordinate of the rectangle center
- y : y coordinate of the rectangle center
- width : width of the rectangle
- height : height of the rectangle
- color : color of the rectangle
- angle : rotation of the rectangle.
Below is the implementation:
Python3
# Importing arcade module import arcade # Creating MainGame class class MainGame(arcade.Window): def __init__(self): super().__init__(600, 600, title="Player Movement") # Initializing the initial x and y coordinated self.x = 250 self.y = 250 # Initializing a variable to store # the velocity of the player self.vel = 300 # Creating on_draw() function to draw on the screen def on_draw(self): arcade.start_render() # Drawing the rectangle using # draw_rectangle_filled function arcade.draw_rectangle_filled(self.x, self.y,50, 50, arcade.color.GREEN ) # Creating on_update function to # update the x coordinate def on_update(self,delta_time): self.x += self.vel * delta_time # Changing the direction of # movement if player crosses the screen if self.x>=550 or self.x<=50: self.vel *= -1 # Calling MainGame class MainGame() arcade.run() |
Output:
Player Movement using Keyboard Inputs
In arcade, we can take inputs from users to move our players. For this, we will use the on_key_press() and on_key_release() function.
Syntax:
- on_key_press(symbol,modifiers)
- on_key_release) symbol, modifiers)
Parameters:
- symbol: Key that was hit
- modifiers: Bitwise ‘and’ of all modifiers (shift, ctrl, num lock) pressed during this event
Below is the implementation:
Python3
# Importing arcade module import arcade # Creating MainGame class class MainGame(arcade.Window): def __init__(self): super().__init__(600, 600, title="Player Movement") # Initializing the initial x and y coordinated self.x = 250 self.y = 250 # Initializing a variable to store # the velocity of the player self.vel_x = 0 self.vel_y = 0 # Creating on_draw() function to draw on the screen def on_draw(self): arcade.start_render() # Drawing the rectangle using # draw_rectangle_filled function arcade.draw_rectangle_filled(self.x, self.y,50, 50, arcade.color.GREEN ) # Creating on_update function to # update the x coordinate def on_update(self,delta_time): self.x += self.vel_x * delta_time self.y += self.vel_y * delta_time # Creating function to change the velocity # when button is pressed def on_key_press(self, symbol,modifier): # Checking the button pressed # and changing the value of velocity if symbol == arcade.key.UP: self.vel_y = 300 elif symbol == arcade.key.DOWN: self.vel_y = -300 elif symbol == arcade.key.LEFT: self.vel_x = -300 elif symbol == arcade.key.RIGHT: self.vel_x = 300 # Creating function to change the velocity # when button is released def on_key_release(self, symbol, modifier): # Checking the button released # and changing the value of velocity if symbol == arcade.key.UP: self.vel_y = 0 elif symbol == arcade.key.DOWN: self.vel_y = 0 elif symbol == arcade.key.LEFT: self.vel_x = 0 elif symbol == arcade.key.RIGHT: self.vel_x = 0 # Calling MainGame class MainGame() arcade.run() |
Output:
