Space shooter

play_00.py

import pgzrun

HEIGHT = 800
WIDTH = 1000
BLACK = (0, 0, 0)

ship = Actor("playership")
ship.x = WIDTH // 2
ship.bottom = HEIGHT


def draw():
    screen.fill(BLACK)
    ship.draw()


pgzrun.go()

play_01.py

'''
move the ship left and right based on keyboard keys
'''
import pgzrun

HEIGHT = 800
WIDTH = 1000
BLACK = (0, 0, 0)

ship = Actor("playership")
ship.x = WIDTH // 2
ship.bottom = HEIGHT


def draw():
    screen.fill(BLACK)
    ship.draw()


def update():
    move_ship()


def move_ship():
    if keyboard.left:
        ship.x -= 5
    if keyboard.right:
        ship.x += 5


pgzrun.go()

play_02.py

'''
create a bullet and animate it
'''
import pgzrun

HEIGHT = 800
WIDTH = 1000
BLACK = (0, 0, 0)

ship = Actor("playership")
ship.x = WIDTH // 2
ship.bottom = HEIGHT

bullet = Actor("bullet")
bullet.x = ship.x
bullet.y = ship.top

def draw():
    screen.fill(BLACK)
    ship.draw()
    bullet.draw()


def update():
    move_ship()
    move_bullet()


def move_ship():
    if keyboard.left:
        ship.x -= 5
    if keyboard.right:
        ship.x += 5


def move_bullet():
    bullet.y -= 10


pgzrun.go()

play_03.py

'''
create a group of bullets
'''
import pgzrun

HEIGHT = 800
WIDTH = 1000
BLACK = (0, 0, 0)

ship = Actor("playership")
ship.x = WIDTH // 2
ship.bottom = HEIGHT

bullets = []


def draw():
    screen.fill(BLACK)
    ship.draw()
    for bullet in bullets:
        bullet.draw()


def update():
    move_ship()
    move_bullet()

def on_key_down(key):
    if key == keys.SPACE:
        create_new_bullet()


def move_ship():
    if keyboard.left:
        ship.x -= 5
    if keyboard.right:
        ship.x += 5


def move_bullet():
    for bullet in bullets:
        if bullet.y < 0:
            bullets.remove(bullet)
        else:
            bullet.y -= 10


def create_new_bullet():
    bullet = Actor("bullet")
    bullet.x = ship.x
    bullet.y = ship.top
    bullets.append(bullet)


pgzrun.go()

play_04.py

'''
create enemies
'''
import pgzrun
from random import randint

HEIGHT = 800
WIDTH = 1000
BLACK = (0, 0, 0)

ship = Actor("playership")
ship.x = WIDTH // 2
ship.bottom = HEIGHT

bullets = []
enemies = []


def draw():
    screen.fill(BLACK)
    ship.draw()
    for bullet in bullets:
        bullet.draw()
    for enemy in enemies:
        enemy.draw()


def update():
    move_ship()
    move_bullet()
    move_enemies()

def on_key_down(key):
    if key == keys.SPACE:
        create_new_bullet()


def move_ship():
    if keyboard.left:
        ship.x -= 5
    if keyboard.right:
        ship.x += 5


def move_enemies():
    for enemy in enemies:
        if enemy.bottom > HEIGHT:
            enemies.remove(enemy)
            create_new_enemy()
        else:
            enemy.y += 10


def move_bullet():
    for bullet in bullets:
        if bullet.y < 0:
            bullets.remove(bullet)
        else:
            bullet.y -= 10


def create_new_bullet():
    bullet = Actor("bullet")
    bullet.x = ship.x
    bullet.y = ship.top
    bullets.append(bullet)


def create_new_enemy():
    enemy = Actor("enemygreen")
    enemy.x = randint(50, WIDTH - 50)
    enemy.y = 50
    enemies.append(enemy)

create_new_enemy()
pgzrun.go()

play_05.py

'''
Check if bullet collides with enemy or if enemy collides with player
'''

import pgzrun
from random import randint

HEIGHT = 800
WIDTH = 1000
BLACK = (0, 0, 0)

ship = Actor("playership")
ship.x = WIDTH // 2
ship.bottom = HEIGHT

bullets = []
enemies = []


def draw():
    screen.fill(BLACK)
    ship.draw()
    for bullet in bullets:
        bullet.draw()
    for enemy in enemies:
        enemy.draw()


def update():
    move_ship()
    move_bullet()
    move_enemies()
    check_bullet_collision()

def on_key_down(key):
    if key == keys.SPACE:
        create_new_bullet()


def move_ship():
    if keyboard.left:
        ship.x -= 5
    if keyboard.right:
        ship.x += 5


def move_enemies():
    for enemy in enemies:
        if enemy.bottom > HEIGHT:
            enemies.remove(enemy)
            create_new_enemy()
        else:
            enemy.y += 10


def move_bullet():
    for bullet in bullets:
        if bullet.y < 0:
            bullets.remove(bullet)
        else:
            bullet.y -= 10


def create_new_bullet():
    bullet = Actor("bullet")
    bullet.x = ship.x
    bullet.y = ship.top
    bullets.append(bullet)


def create_new_enemy():
    enemy = Actor("enemygreen")
    enemy.x = randint(50, WIDTH - 50)
    enemy.y = 50
    enemies.append(enemy)


def check_bullet_collision():
    for enemy in enemies:
        for bullet in bullets:
            if enemy.colliderect(bullet):
                bullets.remove(bullet)
                enemies.remove(enemy)
                sounds.shoot.play()
                create_new_enemy()


create_new_enemy()
pgzrun.go()

play_06.py

'''
Check collision
'''

import pgzrun
from random import randint

HEIGHT = 800
WIDTH = 1000
BLACK = (0, 0, 0)

ship = Actor("playership")
ship.x = WIDTH // 2
ship.bottom = HEIGHT

bullets = []
enemies = []

is_player_dead = False
def draw():
    screen.fill(BLACK)
    ship.draw()
    for bullet in bullets:
        bullet.draw()
    for enemy in enemies:
        enemy.draw()


def update():
    if not is_player_dead:
        move_ship()
        move_bullet()
        move_enemies()
        check_bullet_collision()
        check_player_collision()


def on_key_down(key):
    if not is_player_dead:
        if key == keys.SPACE:
            create_new_bullet()


def move_ship():
    if keyboard.left:
        ship.x -= 5
    if keyboard.right:
        ship.x += 5


def move_enemies():
    for enemy in enemies:
        if enemy.bottom > HEIGHT:
            enemies.remove(enemy)
            create_new_enemy()
        else:
            enemy.y += 5


def move_bullet():
    for bullet in bullets:
        if bullet.y < 0:
            bullets.remove(bullet)
        else:
            bullet.y -= 10


def create_new_bullet():
    bullet = Actor("bullet")
    bullet.x = ship.x
    bullet.y = ship.top
    bullets.append(bullet)


def create_new_enemy():
    enemy = Actor("enemygreen")
    enemy.x = randint(50, WIDTH - 50)
    enemy.y = 50
    enemies.append(enemy)


def check_bullet_collision():  # check if any bullet collides with any of the enemies
    for enemy in enemies:
        for bullet in bullets:
            if enemy.colliderect(bullet):
                if bullet in bullets:
                    bullets.remove(bullet)
                if enemy in enemies:
                    enemies.remove(enemy)
                sounds.shoot.play()  #play sound
                create_new_enemy()


def check_player_collision():  # check if any enemy collides with player
    global is_player_dead
    for enemy in enemies:
        if enemy.colliderect(ship):
            if enemy in enemies:
                enemies.remove(enemy)
            ship.image = "damageship"
            is_player_dead = True


create_new_enemy()
pgzrun.go()

play_07.py

'''
Create multiple enemies
'''

import pgzrun
from random import randint

HEIGHT = 800
WIDTH = 1000
BLACK = (0, 0, 0)

ship = Actor("playership")
ship.x = WIDTH // 2
ship.bottom = HEIGHT

bullets = []
enemies = []

is_player_dead = False
def draw():
    screen.fill(BLACK)
    ship.draw()
    for bullet in bullets:
        bullet.draw()
    for enemy in enemies:
        enemy.draw()


def update():
    if not is_player_dead:
        move_ship()
        move_bullet()
        move_enemies()
        check_bullet_collision()
        check_player_collision()

def on_key_down(key):
    if not is_player_dead:
        if key == keys.SPACE:
            create_new_bullet()


def move_ship():
    if keyboard.left:
        ship.x -= 5
    if keyboard.right:
        ship.x += 5


def move_enemies():
    for enemy in enemies:
        if enemy.bottom > HEIGHT:
            enemies.remove(enemy)
            #create_new_enemy()
        else:
            enemy.y += 5


def move_bullet():
    for bullet in bullets:
        if bullet.y < 0:
            bullets.remove(bullet)
        else:
            bullet.y -= 10


def create_new_bullet():
    bullet = Actor("bullet")
    bullet.x = ship.x
    bullet.y = ship.top
    bullets.append(bullet)


def create_new_enemy():
    for i in range(8):
        for j in range(4):
            enemy = Actor("smallenemy")
            enemy.left = 70 * i
            enemy.top = 70 * j
            enemies.append(enemy)


def check_bullet_collision():  # check if any bullet collides with any of the enemies
    for enemy in enemies:
        for bullet in bullets:
            if enemy.colliderect(bullet):
                if bullet in bullets:
                    bullets.remove(bullet)
                if enemy in enemies:
                    enemies.remove(enemy)
                sounds.shoot.play()  #play sound
                if len(enemies) == 0:
                    create_enemy()


def check_player_collision():  # check if any enemy collides with player
    global is_player_dead
    for enemy in enemies:
        if enemy.colliderect(ship):
            if enemy in enemies:
                enemies.remove(enemy)
            ship.image = "damageship"
            is_player_dead = True


create_new_enemy()
pgzrun.go()