247 lines
7.9 KiB
Python
247 lines
7.9 KiB
Python
"""
|
|
Load a map stored in csv format, as exported by the program 'Tiled.'
|
|
|
|
Artwork from http://kenney.nl
|
|
|
|
If Python and Arcade are installed, this example can be run from the command line with:
|
|
python -m arcade.examples.sprite_ramps
|
|
"""
|
|
import arcade
|
|
import os
|
|
|
|
SPRITE_SCALING = 0.5
|
|
|
|
SCREEN_WIDTH = 800
|
|
SCREEN_HEIGHT = 600
|
|
SCREEN_TITLE = "Sprite with Ramps Example"
|
|
SPRITE_PIXEL_SIZE = 128
|
|
GRID_PIXEL_SIZE = (SPRITE_PIXEL_SIZE * SPRITE_SCALING)
|
|
|
|
# How many pixels to keep as a minimum margin between the character
|
|
# and the edge of the screen.
|
|
VIEWPORT_MARGIN = 40
|
|
RIGHT_MARGIN = 150
|
|
|
|
# Physics
|
|
MOVEMENT_SPEED = 5
|
|
JUMP_SPEED = 14
|
|
GRAVITY = 0.5
|
|
|
|
|
|
def get_map():
|
|
map_file = open("map_with_ramps_2.csv")
|
|
map_array = []
|
|
for line in map_file:
|
|
line = line.strip()
|
|
map_row = line.split(",")
|
|
for index, item in enumerate(map_row):
|
|
map_row[index] = int(item)
|
|
map_array.append(map_row)
|
|
return map_array
|
|
|
|
|
|
class MyGame(arcade.Window):
|
|
""" Main application class. """
|
|
|
|
def __init__(self, width, height, title):
|
|
"""
|
|
Initializer
|
|
"""
|
|
|
|
super().__init__(width, height, title)
|
|
|
|
# Set the working directory (where we expect to find files) to the same
|
|
# directory this .py file is in. You can leave this out of your own
|
|
# code, but it is needed to easily run the examples using "python -m"
|
|
# as mentioned at the top of this program.
|
|
file_path = os.path.dirname(os.path.abspath(__file__))
|
|
os.chdir(file_path)
|
|
|
|
# Sprite lists
|
|
self.all_sprites_list = None
|
|
self.coin_list = None
|
|
self.player_list = None
|
|
|
|
# Set up the player
|
|
self.player_sprite = None
|
|
self.wall_list = None
|
|
self.physics_engine = None
|
|
self.view_left = 0
|
|
self.view_bottom = 0
|
|
self.game_over = False
|
|
|
|
def start_new_game(self):
|
|
""" Set up the game and initialize the variables. """
|
|
|
|
# Sprite lists
|
|
self.all_sprites_list = arcade.SpriteList()
|
|
self.wall_list = arcade.SpriteList()
|
|
self.player_list = arcade.SpriteList()
|
|
|
|
# Set up the player
|
|
self.player_sprite = arcade.Sprite("images/character.png",
|
|
SPRITE_SCALING)
|
|
self.player_sprite.center_x = 64
|
|
self.player_sprite.center_y = 270
|
|
self.player_list.append(self.player_sprite)
|
|
self.all_sprites_list.append(self.player_sprite)
|
|
|
|
map_array = get_map()
|
|
|
|
# Right edge of the map in pixels
|
|
self.end_of_map = len(map_array[0]) * GRID_PIXEL_SIZE
|
|
|
|
map_items = ["images/boxCrate_double.png",
|
|
"images/grassCenter.png",
|
|
"images/grassCorner_left.png",
|
|
"images/grassCorner_right.png",
|
|
"images/grassHill_left.png",
|
|
"images/grassHill_right.png",
|
|
"images/grassLeft.png",
|
|
"images/grassMid.png",
|
|
"images/grassRight.png",
|
|
"images/stoneHalf.png"
|
|
]
|
|
for row_index, row in enumerate(map_array):
|
|
for column_index, item in enumerate(row):
|
|
|
|
if item == -1:
|
|
continue
|
|
else:
|
|
wall = arcade.Sprite(map_items[item],
|
|
SPRITE_SCALING)
|
|
|
|
# Change the collision polygon to be a ramp instead of
|
|
# a rectangle
|
|
if item == 4:
|
|
wall.points = ((-wall.width // 2, wall.height // 2),
|
|
(wall.width // 2, -wall.height // 2),
|
|
(-wall.width // 2, -wall.height // 2))
|
|
elif item == 5:
|
|
wall.points = ((-wall.width // 2, -wall.height // 2),
|
|
(wall.width // 2, -wall.height // 2),
|
|
(wall.width // 2, wall.height // 2))
|
|
|
|
wall.right = column_index * 64
|
|
wall.top = (7 - row_index) * 64
|
|
self.all_sprites_list.append(wall)
|
|
self.wall_list.append(wall)
|
|
|
|
self.physics_engine = \
|
|
arcade.PhysicsEnginePlatformer(self.player_sprite,
|
|
self.wall_list,
|
|
gravity_constant=GRAVITY)
|
|
|
|
# Set the background color
|
|
arcade.set_background_color(arcade.color.AMAZON)
|
|
|
|
# Set the viewport boundaries
|
|
# These numbers set where we have 'scrolled' to.
|
|
self.view_left = 0
|
|
self.view_bottom = 0
|
|
|
|
self.game_over = False
|
|
|
|
def on_draw(self):
|
|
"""
|
|
Render the screen.
|
|
"""
|
|
|
|
# This command has to happen before we start drawing
|
|
arcade.start_render()
|
|
|
|
# Draw all the sprites.
|
|
self.wall_list.draw()
|
|
self.player_list.draw()
|
|
|
|
# Put the text on the screen.
|
|
# Adjust the text position based on the viewport so that we don't
|
|
# scroll the text too.
|
|
distance = self.player_sprite.right
|
|
output = "Distance: {}".format(distance)
|
|
arcade.draw_text(output, self.view_left + 10, self.view_bottom + 20,
|
|
arcade.color.WHITE, 14)
|
|
|
|
if self.game_over:
|
|
output = "Game Over"
|
|
arcade.draw_text(output, self.view_left + 200,
|
|
self.view_bottom + 200,
|
|
arcade.color.WHITE, 30)
|
|
|
|
def on_key_press(self, key, modifiers):
|
|
"""
|
|
Called whenever a key is pressed down.
|
|
"""
|
|
if key == arcade.key.UP:
|
|
if self.physics_engine.can_jump():
|
|
self.player_sprite.change_y = JUMP_SPEED
|
|
elif key == arcade.key.LEFT:
|
|
self.player_sprite.change_x = -MOVEMENT_SPEED
|
|
elif key == arcade.key.RIGHT:
|
|
self.player_sprite.change_x = MOVEMENT_SPEED
|
|
|
|
def on_key_release(self, key, modifiers):
|
|
"""
|
|
Called when the user releases a key.
|
|
"""
|
|
if key == arcade.key.LEFT or key == arcade.key.RIGHT:
|
|
self.player_sprite.change_x = 0
|
|
|
|
def update(self, delta_time):
|
|
""" Movement and game logic """
|
|
|
|
if self.player_sprite.right >= self.end_of_map:
|
|
self.game_over = True
|
|
|
|
# Call update on all sprites (The sprites don't do much in this
|
|
# example though.)
|
|
if not self.game_over:
|
|
self.physics_engine.update()
|
|
|
|
# --- Manage Scrolling ---
|
|
|
|
# Track if we need to change the viewport
|
|
|
|
changed = False
|
|
|
|
# Scroll left
|
|
left_bndry = self.view_left + VIEWPORT_MARGIN
|
|
if self.player_sprite.left < left_bndry:
|
|
self.view_left -= int(left_bndry - self.player_sprite.left)
|
|
changed = True
|
|
|
|
# Scroll right
|
|
right_bndry = self.view_left + SCREEN_WIDTH - RIGHT_MARGIN
|
|
if self.player_sprite.right > right_bndry:
|
|
self.view_left += int(self.player_sprite.right - right_bndry)
|
|
changed = True
|
|
|
|
# Scroll up
|
|
top_bndry = self.view_bottom + SCREEN_HEIGHT - VIEWPORT_MARGIN
|
|
if self.player_sprite.top > top_bndry:
|
|
self.view_bottom += int(self.player_sprite.top - top_bndry)
|
|
changed = True
|
|
|
|
# Scroll down
|
|
bottom_bndry = self.view_bottom + VIEWPORT_MARGIN
|
|
if self.player_sprite.bottom < bottom_bndry:
|
|
self.view_bottom -= int(bottom_bndry - self.player_sprite.bottom)
|
|
changed = True
|
|
|
|
# If we need to scroll, go ahead and do it.
|
|
if changed:
|
|
arcade.set_viewport(self.view_left,
|
|
SCREEN_WIDTH + self.view_left,
|
|
self.view_bottom,
|
|
SCREEN_HEIGHT + self.view_bottom)
|
|
|
|
|
|
def main():
|
|
window = MyGame(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
|
|
window.start_new_game()
|
|
arcade.run()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|