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invaders.py
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invaders.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
""" Game inspired from pyqt5 code snippet from Roger Allen
https://gist.github.com/rogerallen/f06ba704ce3befb5459239e3fdf842c7
"""
from PyQt6.QtCore import (Qt, QBasicTimer, QUrl)
from PyQt6.QtGui import (QBrush, QColor, QPainter, QPixmap, QImage, QFontDatabase, QFont, QPen, QTextOption)
from PyQt6.QtWidgets import (QMainWindow, QApplication, QGraphicsItem, QGraphicsScene,
QGraphicsView, QGraphicsPixmapItem, QGraphicsTextItem)
from PyQt6.QtMultimedia import QSoundEffect
from GUI.main import Ui_MainWindow
import random
import subprocess
import sys
import time
PLAYER_SPEED = 5 # pix/frame
PLAYER_BULLET_X_OFFSET = 15 # half width of bullet
PLAYER_BULLET_Y = 5
BULLET_SPEED = 10 # pix/frame
BULLET_FRAMES = 70
ENEMY_BULLET_X_OFFSET = 15 # half width of bullet
EXPLOSION_FRAMES = 2
FRAME_TIME_MS = 16 # ms/frame
TEST = True
volume = 0.7
bump_sound = QSoundEffect()
# Shortened to reduce latency: ffmpeg -i NFF-bump.wav -ss 00:00:00.000 -t 00:00:00.250 -c copy NFF-bump-short.wav
bump_sound.setSource(QUrl.fromLocalFile("Sounds/NFF-bump-short.wav"))
bump_sound.setVolume(volume)
alert_sound = QSoundEffect()
alert_sound.setSource(QUrl.fromLocalFile("Sounds/NFF-alert.wav"))
alert_sound.setVolume(volume)
alien_transport_sound = QSoundEffect()
alien_transport_sound.setSource(QUrl.fromLocalFile("Sounds/NFF-alien-02.wav"))
alien_transport_sound.setVolume(volume)
glittering_sound = QSoundEffect()
# ffmpeg -i NFF-glittering.wav -ss 00:00:00.000 -t 00:00:02.000 -c copy NFF-glittering-short.wav
glittering_sound.setSource(QUrl.fromLocalFile("Sounds/NFF-glittering-short.wav"))
glittering_sound.setVolume(volume)
shield_sound = QSoundEffect()
# ffmpeg -i NFF-ufo.wav -ss 00:00:00.000 -t 00:00:02.500 -c copy NFF-ufo-short.wav
shield_sound.setSource(QUrl.fromLocalFile("Sounds/NFF-ufo-short.wav"))
shield_sound.setVolume(volume)
slowed_sound = QSoundEffect()
slowed_sound.setSource(QUrl.fromLocalFile("Sounds/NFF-shooting-star-02.wav"))
slowed_sound.setVolume(volume)
# ffmpeg -i tir.wav -ss 00:00:00.000 -t 00:00:00.300 -c copy shoot.wav
bullet_sound = QSoundEffect()
bullet_sound.setSource(QUrl.fromLocalFile("Sounds/shoot.wav"))
bullet_sound.setVolume(volume)
sound_on = False
introduction_msg = "Alien Invaders\n\nN for new game\n\nSpace to Shoot\n\nLeft Right Up Down arrows to move\n\n" \
"Bonus Items: Shield, Slow Alien Descent, Instant Destruct\n\n" \
"Try and avoid the Alien Transports\n\n" \
"Beware of the UFOs\n\nDo not let the Aliens land\n\n\n\nCreated by Colin Curtain"
class Scene(QGraphicsScene):
def __init__(self, width, height, parent=None):
QGraphicsScene.__init__(self, parent)
self.setSceneRect(0, 0, width, height)
self.player_hit = False
self.score_item = None
self.wave = 0
self.score = 0
self.game_over = False
self.lost = False
self.lost_counter = 0
self.invaded = False # Used for invasion graphics
self.bullets = []
self.explosions = []
self.keys_pressed = None
self.player = None
self.enemies = []
self.enbullets = []
self.bonuses = []
self.msg = None
# Use timer to get 60Hz refresh for scene
self.timer = QBasicTimer()
self.timer.start(FRAME_TIME_MS, self)
self.new_game()
def new_game(self):
""" Set variables, clear score. """
# Hold the set of keys that are being pressed
self.keys_pressed = set()
self.clear()
self.game_over = False
self.lost = False
self.invaded = False
self.player_hit = False
self.wave = 0
self.score = 0
self.score_item = Score()
self.addItem(self.score_item)
self.player = Player(self.width(), self.height())
self.enemies = []
self.enbullets = [] # Enemy bullets
self.msg = None
self.bonuses = []
self.bullets = [Bullet(PLAYER_BULLET_X_OFFSET, PLAYER_BULLET_Y, self.width(), self.height())]
for bullet in self.bullets:
bullet.setPos(self.width(), self.height())
self.addItem(bullet)
self.addItem(self.player)
self.enemy_wave_setup()
def keyPressEvent(self, event):
if event.key() == Qt.Key.Key_N and self.game_over:
self.new_game()
return
self.keys_pressed.add(event.key())
def keyReleaseEvent(self, event):
try:
if self.keys_pressed:
self.keys_pressed.remove(event.key())
except KeyError:
pass
def timerEvent(self, event):
self.game_update()
self.update()
def game_update(self):
if self.game_over:
if self.msg is not None:
self.msg.game_update()
return
# Update player moves and bullets
self.player.game_update(self.keys_pressed)
for bullet in self.bullets:
bullet.game_update(self.keys_pressed, self.player)
# Check for enemy collides with player
for enemy in self.enemies:
hit_items = self.collidingItems(enemy)
for hit_item in hit_items:
if isinstance(hit_item, Player):
self.lost = True
time.sleep(2)
# Update enemies and explosions
for enemy in self.enemies:
enemy.game_update()
if enemy.y() > self.height():
self.lost = True
self.invaded = True
for explosion in self.explosions:
explosion.game_update()
# Bonuses
if random.randint(0, 500) == 0 and len(self.bonuses) < 2:
bonus = BonusItem(self.width(), self.height())
self.bonuses.append(bonus)
self.addItem(bonus)
for bonus in self.bonuses:
bonus.game_update()
# Check for enemy bullet collisions
for bullet in self.enbullets:
hits = self.collidingItems(bullet)
if hits:
for hit in hits:
# Enemy bullet collides with ring shield
if type(hit).__name__ == "BonusItem" and hit.effect is True and hit.name == "shield":
bullet.setVisible(False)
# Enemy bullet collides with player
if type(hit).__name__ == "Player":
self.lost = True
if self.lost:
for bonus in self.bonuses:
if bonus.effect is True and bonus.name == "shield":
self.lost = False
if self.lost:
self.player.setPixmap(QPixmap("Images/Explosion2.png"))
for bullet in self.enbullets:
bullet.game_update()
# Check for player bullet collision with ONE Enemy or BonusItem
for bullet in self.bullets:
hit_items = self.collidingItems(bullet)
if not hit_items:
continue
hit_item = hit_items[0] # Only hit ONE item
# Enemy is hit
if hit_item and isinstance(hit_item, Enemy):
if sound_on:
bump_sound.play()
bullet.hit_enemy(hit_item)
if hit_item.hp == 0:
self.score += hit_item.score
en_pos = (hit_item.pos())
explode = Explosion(en_pos.x(), en_pos.y())
self.explosions.append(explode)
self.addItem(explode)
# Hit enemy through Effects or Dreams or Flare
if len(hit_items) > 1 and isinstance(hit_item, BonusItem) and \
hit_item.effect is True and hit_item.name in ("flare", "dreams") and \
isinstance(hit_items[1], Enemy):
bullet.hit_enemy(hit_items[1])
if hit_items[1].hp == 0:
self.score += hit_items[1].score
enemy_pos = (hit_items[1].pos())
explode = Explosion(enemy_pos.x(), enemy_pos.y())
self.explosions.append(explode)
self.addItem(explode)
# Hit bonus and activate item
if hit_items and isinstance(hit_item, BonusItem) and \
hit_item.effect is False:
hit_item.effect = True
hit_item.game_update()
# An anti-bonus item if Alien transport hit
if hit_item.name == "Alien transport" and self.msg is None:
for i in range(0, 5):
enemy = Enemy(self.width(), self.height(), 24, hit_item.x(), hit_item.y())
self.enemies.append(enemy)
self.addItem(enemy)
# BonusItem
for bonus in self.bonuses:
# Check if Flare collides with Enemies
if bonus.effect and bonus.name == "flare":
hit_items = self.collidingItems(bonus)
for hit_item in hit_items:
if isinstance(hit_item, Enemy):
hit_item.hp = 0
if hit_item.hp == 0:
self.score += hit_item.score
explosion_pos = (hit_item.pos())
explode = Explosion(explosion_pos.x(), explosion_pos.y())
self.explosions.append(explode)
self.addItem(explode)
# Check if Slowed collides with Enemies
if bonus.effect and bonus.name == "slowed":
hit_items = self.collidingItems(bonus)
for hit_item in hit_items:
if isinstance(hit_item, Enemy) and hit_item.pos().y() > 0:
hit_item.dy = 0.12
# hit.dx = 1.2
# If a shield, position it over player
if bonus.effect and bonus.name == "shield":
bonus.update_to_player_pos(self.player)
self.score_item.game_update(self.wave, self.score)
self.cleanup_items()
self.maybe_add_enbullets()
# Check for game end
if self.lost:
self.game_over = True
self.end_of_game()
# Update message
if self.msg is not None:
self.msg.game_update()
# Begin new wave, after msg fade out
if self.msg is not None and self.msg.frames <= 0:
self.enemy_wave_setup()
# Check for new wave, countdown Msg frames til new wave
if len(self.enemies) == 0 and self.msg is None:
self.msg = FadeMessage(f"Wave {self.wave + 1}")
self.addItem(self.msg)
def enemy_wave_setup(self):
""" All enemies defeated, new wave created.
Add two extra enemies at each higher wave. """
if sound_on:
alert_sound.play()
self.wave += 1
items = self.items()
for item in items:
if type(item).__name__ not in ('Player', 'Score', 'Bullet'):
self.removeItem(item)
self.msg = None
self.explosions = []
self.enemies = []
self.bonuses = []
self.enbullets = []
for new_enemy in range(3 + int(self.wave * 1.5)):
enemy = Enemy(self.width(), self.height())
self.enemies.append(enemy)
self.addItem(enemy)
def maybe_add_enbullets(self):
""" Small chance to fire a bullet from each enemy """
for enemy in self.enemies:
if random.randint(0, 1000) < 5:
self.add_enbullet(enemy)
# Was 15 but too many bullets
if enemy.name == "Mother UFO" and random.randint(0, 1000) < 10:
self.add_enbullet(enemy)
def add_enbullet(self, enemy):
""" Non-directional bullet fired from most enemies.
:param: enemy : Enemy class
"""
color = "2"
if enemy.name == "Big mother":
color = "3"
if enemy.name != "Mother UFO":
bullet = EnemyBullet(enemy.x() + enemy.pixmap().width() / 2, enemy.y(), color)
self.enbullets.append(bullet)
self.addItem(bullet)
else:
bullet = EnemyDirectedBullet(enemy.x() + enemy.pixmap().width() / 2, enemy.y(), self.player.x(),
self.player.y())
self.enbullets.append(bullet)
self.addItem(bullet)
def end_of_game(self):
""" Finish game. Show end credit. """
time.sleep(1)
msg = "GAME OVER\n"
if len(self.enemies) == 0:
msg += "You Won"
else:
msg += "You Lost"
msg += "\nPress n for new game"
self.msg = FadeMessage(msg)
self.addItem(self.msg)
items = self.items()
for item in items:
if not isinstance(item, FadeMessage):
self.removeItem(item)
if not self.invaded:
return
alien = QGraphicsPixmapItem()
alien.setPixmap(QPixmap("Images/alien-1295498_200.png"))
alien.setPos(300, 500)
self.addItem(alien)
fungus = QGraphicsPixmapItem()
fungus.setPixmap(QPixmap("Images/fungus-576077_200.png"))
fungus.setPos(100, 450)
self.addItem(fungus)
fungus = QGraphicsPixmapItem()
fungus.setPixmap(QPixmap("Images/fungus-576077_200.png"))
fungus.setPos(650, 420)
self.addItem(fungus)
msg += "\nThe aliens have invaded"
self.msg = FadeMessage(msg)
self.msg.r = 0
self.msg.y = 100
self.addItem(self.msg)
def cleanup_items(self):
""" Remove expired enBullets, Enemies and Explosions from the scene and lists. """
items = self.items()
for item in items:
if isinstance(item, Explosion) and item.counter == 0:
self.removeItem(item)
if isinstance(item, Enemy) and item.hp == 0:
self.removeItem(item)
if isinstance(item, EnemyBullet) and item.active is False:
self.removeItem(item)
if isinstance(item, BonusItem) and item.active is False:
self.removeItem(item)
if isinstance(item, FadeMessage) and item.frames < 0:
self.removeItem(item)
self.msg = None
tmp = []
for explosion in self.explosions:
if explosion.counter > 0:
tmp.append(explosion)
self.explosions = tmp
tmp = []
for enemy in self.enemies:
if enemy.hp > 0:
tmp.append(enemy)
self.enemies = tmp
tmp = []
for bonus in self.bonuses:
if bonus.active:
tmp.append(bonus)
self.bonuses = tmp
tmp = []
for bullet in self.enbullets:
if bullet.active:
tmp.append(bullet)
self.enbullets = tmp
class FadeMessage(QGraphicsTextItem):
""" Fading message. """
frames = 255
r = 255
g = 255
b = 0
y = 250
def init(self, text="", parent=None):
super(QGraphicsTextItem).__init__(parent)
self.frames = 255
self.setTextWidth(900)
# Centering does not work
text_option = QTextOption()
text_option.setWrapMode(QTextOption.WrapMode.NoWrap)
text_option.setAlignment(Qt.AlignmentFlag.AlignCenter)
self.document().setDefaultTextOption(text_option)
self.setDefaultTextColor(QColor(self.r, self.g, self.b))
self.setPos(150, self.y)
self.setPlainText(text)
self.setFont(QFont("Robotica", 40))
def game_update(self):
self.frames -= 1
alpha = self.frames
if alpha < 0:
alpha = 0
self.setFont(QFont("Robotica", 40))
self.setDefaultTextColor(QColor(self.r, self.g, self.b, alpha))
self.setPos(150, self.y)
class Score(QGraphicsTextItem):
def init(self, parent=None):
QGraphicsTextItem.__init__(self, parent)
self.setPlainText("Wave: 0 Score: 0")
self.setFont(QFont("Robotica", 15))
self.setDefaultTextColor(QColor(255, 255, 0))
self.setPos(10, 670)
def game_update(self, wave, score):
self.setPlainText(f"Wave: {wave} Score: {score}")
self.setFont(QFont("Robotica", 20))
self.setDefaultTextColor(QColor(255, 255, 0))
self.setPos(10, 670)
class Explosion(QGraphicsPixmapItem):
""" Uses explosions images. """
def __init__(self, x, y, parent=None):
QGraphicsPixmapItem.__init__(self, parent)
# Load image frames
explosion_grid = QImage("Images/explosion_16x64x64.png")
self.explosion_pics = []
for col in range(0, 4):
for row in range(0, 4):
self.explosion_pics.append(QPixmap.fromImage(explosion_grid.copy(row * 64, col * 64, 64, 64)))
self.counter = 0.1
self.setPixmap(self.explosion_pics[int(self.counter)])
self.x = x
self.y = y
self.setPos(x, y)
self.frames = 0
def game_update(self):
self.frames = EXPLOSION_FRAMES
if self.counter > 0:
self.counter += 0.4
if self.counter > 15:
self.counter = 0
return
self.setPixmap(self.explosion_pics[int(self.counter)])
class Enemy(QGraphicsPixmapItem):
""" Currently four different types. """
def __init__(self, scr_w, scr_h, en_type=-1, start_x=-1, start_y=-1, parent=None):
""" Set up random enemy.
:param: screen width Integer
:param: screen height Integer
:param: en_type Integer
:param: en_x Integer
:param: en_y Integer
"""
QGraphicsPixmapItem.__init__(self, parent)
entype = en_type
if entype == -1:
entype = random.randint(0, 100)
self.pic = []
self.counter = 0
self.dx = 0.4
self.dy = 0.3
self.hp = 1
self.score = 10
self.name = ""
self.scr_w = scr_w
self.scr_h = scr_h
y = start_y
if y < 0:
y = random.randint(-100, 0)
if entype < 30:
self.dy = 0.15 + random.randint(0, 4) / 20
self.dx = 0.35 + random.randint(0, 8) / 10
self.name = "Dangly tentacles"
self.hp = 2
self.score = 20
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir1.png"))
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir2.png"))
if 30 <= entype < 55:
self.name = "Lots a tentacles"
self.dy = 0.15
self.dx = 1.9 + random.randint(0, 4) / 10
self.hp = 2
self.score = 20
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir5.png"))
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir7a.png"))
if 55 <= entype < 60:
self.name = "Big mother"
self.hp = 3
self.dy = 0.19
self.dx = 1
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir4.png"))
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir3.png"))
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir5.png"))
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir3.png"))
self.score = 30
if 60 <= entype < 90:
self.name = "Space mine"
self.dx = 1 + random.randint(0, 6) / 10
self.dy = 0.45
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir6.png"))
self.pic.append(QPixmap("Images/Spaceships-Drakir2/Spaceship-Drakir6a.png"))
if entype >= 90:
self.score = 50
self.name = "Mother UFO"
y = -80
self.dx = 0.9 + random.randint(0, 4) / 10
self.dy = 0.2
self.hp = 5
self.pic.append(QPixmap("Images/UFO1c.png"))
self.pic.append(QPixmap("Images/UFO1d.png"))
self.setPixmap(self.pic[0])
# Randomise dx direction
d = random.randint(0, 1)
if d == 0:
self.dx = -1 * self.dx
x = start_x
if x < 0:
x = random.randint(10, self.scr_w - self.pixmap().width() - 10)
self.setPos(x, y)
def game_update(self):
if self.x() + self.dx < 0:
self.dx = -1 * self.dx
if self.x() + self.dx + self.pixmap().width() + 10 > self.scr_w:
self.dx = -1 * self.dx
self.counter += 0.05
if self.counter >= len(self.pic):
self.counter = 0
self.setPixmap(self.pic[int(self.counter)])
self.setPos(self.x() + self.dx, self.y() + self.dy)
class EnemyDirectedBullet(QGraphicsPixmapItem):
""" Used by Mother UFO. """
bullet_speed = 3.5
def __init__(self, x, y, player_x, player_y, parent=None):
QGraphicsPixmapItem.__init__(self, parent)
self.setPixmap(QPixmap("Images/bolt4.png"))
self.frames = 0
self.bullet_speed = 3.5
self.x = x - ENEMY_BULLET_X_OFFSET
self.y = y
self.dx = 0
x_diff = self.x - player_x
if -30 <= x_diff <= 50:
self.dx = random.randint(0, 5) - 3
if x_diff < -30:
self.dx = random.randint(0, 5)
if x_diff > 50:
self.dx = random.randint(0, 5) * -1
if self.y > player_y:
self.bullet_speed = -3.5
self.setVisible(True)
self.active = True
self.setPos(self.x, self.y)
self.frames = 180 # Enemy_bullet_frames
def game_update(self):
""" Could not get QSound or QSoundEffect to work, using subprocess. """
if self.active:
self.y += self.bullet_speed
self.x += self.dx
self.setPos(self.x, self.y)
self.frames -= 1
if self.frames <= 0:
self.active = False
self.setVisible(False)
self.setPos(0, -100)
class EnemyBullet(QGraphicsPixmapItem):
""" Bullets fired downwards. """
def __init__(self, x, y, color="2", parent=None):
QGraphicsPixmapItem.__init__(self, parent)
self.setPixmap(QPixmap(f"Images/bolt{color}.png"))
self.bullet_speed = 4
self.frames = 0
self.x = x - ENEMY_BULLET_X_OFFSET
self.y = y
self.setVisible(True)
self.active = True
self.setPos(self.x, self.y)
self.frames = 180 # Enemy_bullet_frames
self.bullet_speed = 4
def game_update(self):
""" Could not get QSound or QSoundEffect to work, using subprocess. """
if self.active:
self.y += self.bullet_speed
self.setPos(self.x, self.y)
self.frames -= 1
if self.frames <= 0:
self.active = False
self.setVisible(False)
self.setPos(0, -100)
class BonusItem(QGraphicsPixmapItem):
""" Various types of Item. """
def __init__(self, scr_w, scr_h, parent=None):
QGraphicsPixmapItem.__init__(self, parent)
self.pen = QPen(Qt.GlobalColor.blue, 3, Qt.PenStyle.SolidLine)
self.scr_w = scr_w
self.scr_h = scr_h
self.pic = []
self.counter = 0
self.dx = 1.2
direction = random.randint(0, 1)
if direction == 0:
self.dx = -1 * self.dx
self.dy = 0
self.hp = 1
self.score = 60
self.active = True
self.effect = False
self.effect_pic_set = False
self.name = "default"
self.frames = 900 # For ring protection and others
x = -40
if self.dx < 0:
x = self.scr_w + 40
i = random.randint(0, 3)
if i == 0:
self.name = "flare"
self.hp = 1
self.score = 60
self.pic.append(QPixmap("Images/Spybot/1.png"))
self.pic.append(QPixmap("Images/Spybot/2.png"))
self.pic.append(QPixmap("Images/Spybot/3.png"))
self.pic.append(QPixmap("Images/Spybot/3.png"))
self.pic.append(QPixmap("Images/Spybot/2.png"))
self.pic.append(QPixmap("Images/Spybot/1.png"))
if i == 1:
self.name = "shield"
self.hp = 1
self.score = 60
self.pic.append(QPixmap("Images/Spybot/10.png"))
if i == 2:
self.name = "slowed"
self.hp = 1
self.score = 60
self.pic.append(
QPixmap("Images/PunkRobot/punkrobot0.png").scaled(30, 30, Qt.AspectRatioMode.KeepAspectRatio,
Qt.TransformationMode.FastTransformation))
self.pic.append(
QPixmap("Images/PunkRobot/punkrobot1.png").scaled(30, 30, Qt.AspectRatioMode.KeepAspectRatio,
Qt.TransformationMode.FastTransformation))
if i == 3:
self.name = "Alien transport"
self.hp = 1
self.score = 0
self.pic.append(QPixmap("Images/UFO2a.png"))
self.pic.append(QPixmap("Images/UFO2b.png"))
self.pic.append(QPixmap("Images/UFO2c.png"))
self.setPixmap(self.pic[0])
# x = -50 # random.randint(10, self.scr_w - self.pixmap().width())
y = random.randint(60, 250)
self.setPos(x, y)
# Flare
self.flare = QPixmap("Images/flare_1.png")
self.flareoffsets = [self.flare.width() / 2, self.flare.height() / 2]
self.flarereducer = 0.9 # Percent reduction per frame of original pixmap
self.flarereduction = 100 # Percentage of original pixmap
self.shield0 = QPixmap("Images/ring0.png").scaled(100, 100, Qt.AspectRatioMode.KeepAspectRatio,
Qt.TransformationMode.FastTransformation)
self.shield1 = QPixmap("Images/ring1.png").scaled(100, 100, Qt.AspectRatioMode.KeepAspectRatio,
Qt.TransformationMode.FastTransformation)
self.shield2 = QPixmap("Images/ring2.png").scaled(100, 100, Qt.AspectRatioMode.KeepAspectRatio,
Qt.TransformationMode.FastTransformation)
self.slowed = []
for i in range(1, 10):
self.slowed.append(QPixmap("Images/slowed/slow" + str(i) + ".png"))
for i in range(9, 0, -1):
self.slowed.append(QPixmap("Images/slowed/slow" + str(i) + ".png"))
def game_update(self):
if self.effect is False:
self.counter += 0.05
if self.counter >= len(self.pic):
self.counter = 0
self.setPixmap(self.pic[int(self.counter)])
self.setPos(self.x() + self.dx, self.y() + self.dy)
if self.dx > 0 and self.x() > self.scr_w:
self.active = False
if self.dx < 0 and self.x() < 0:
self.active = False
return
if self.name == "Alien transport":
self.active = False
if sound_on:
alien_transport_sound.play()
if self.name == "flare":
if self.effect_pic_set is False:
self.setPixmap(self.flare)
self.effect_pic_set = True
if sound_on:
glittering_sound.play()
self.setPos(self.x() - self.flareoffsets[0], self.y() - self.flareoffsets[1])
self.flareoffsets = [0, 0] # Initial offset to position flare over original pixmap
# Resize gradually
self.flarereduction -= self.flarereducer
if self.flarereduction < 5:
self.active = False
return
w = int(self.flarereduction / 100 * self.flare.width())
h = int(self.flarereduction / 100 * self.flare.height())
self.flareoffsets[0] = self.flare.width() - w
self.flareoffsets[1] = self.flare.height() - h
self.setPixmap(self.flare.scaled(w, h, Qt.AspectRatioMode.KeepAspectRatio, Qt.TransformationMode.FastTransformation))
self.setPos(self.x() + self.flareoffsets[0], self.y() + self.flareoffsets[1])
if self.name == "shield":
if self.effect_pic_set is False:
self.setPixmap(self.shield0)
self.effect_pic_set = True
if sound_on:
shield_sound.play()
if self.name == "slowed":
if self.effect_pic_set is False:
self.effect_pic_set = True
self.setPixmap(self.slowed[0])
self.setPos(self.x() - self.slowed[0].width() / 2, self.y() - self.slowed[0].height() / 2)
self.counter = 0
if sound_on:
slowed_sound.play()
return
self.counter += 1
if self.counter >= len(self.slowed):
self.active = False
return
self.setPixmap(self.slowed[int(self.counter)])
def update_to_player_pos(self, player):
""" Only for shield effect. """
self.frames -= 1
# print(self.frames)
if self.frames < 1:
self.active = False
self.setPos(player.x() - 25, player.y() - 25) # magic number offsets to centre item
if 500 > self.frames >= 200:
self.setPixmap(self.shield1)
if self.frames < 200:
self.setPixmap(self.shield2)
class Player(QGraphicsPixmapItem):
""" Set up player half way across and almost on bottom of scene. """
def __init__(self, scr_w, scr_h, parent=None):
QGraphicsPixmapItem.__init__(self, parent)
self.setPixmap(QPixmap("Images/DurrrSpaceShip_50.png"))
self.scr_w = scr_w
self.scr_h = scr_h
self.setPos((self.scr_w - self.pixmap().width()) / 2,
self.scr_h - self.pixmap().height() - 10)
def game_update(self, keys_pressed):
""" Left is A or Left arrow, Right is D or Right Arrow, Space to fire. """
dx = 0
dy = 0
if Qt.Key.Key_A in keys_pressed or Qt.Key.Key_Left in keys_pressed:
dx -= PLAYER_SPEED
if self.x() - dx < 0:
dx = 0
if Qt.Key.Key_D in keys_pressed or Qt.Key.Key_Right in keys_pressed:
dx += PLAYER_SPEED
if self.x() + dx > self.scr_w - self.pixmap().width():
dx = 0
if Qt.Key.Key_W in keys_pressed or Qt.Key.Key_Up in keys_pressed:
dy -= PLAYER_SPEED
if self.y() + dy < 1:
dy = 0
if Qt.Key.Key_S in keys_pressed or Qt.Key.Key_Down in keys_pressed:
dy += PLAYER_SPEED
if self.y() + dy > 670:
dy = 0
self.setPos(self.x() + dx, self.y() + dy)
class Bullet(QGraphicsPixmapItem):
def __init__(self, offset_x, offset_y, scr_w, scr_h, parent=None):
QGraphicsPixmapItem.__init__(self, parent)
self.setPixmap(QPixmap("Images/bolt1.png"))
self.offset_x = offset_x
self.offset_y = offset_y
self.scr_w = scr_w
self.scr_h = scr_h
self.active = False
self.frames = 0
def game_update(self, keys_pressed, player):
""" """
if not self.active:
if Qt.Key.Key_Space in keys_pressed:
# Activate bullet
if sound_on:
bullet_sound.play()
self.setVisible(True)
self.active = True
self.setPos(player.x() + player.pixmap().width() / 2 - self.offset_x, player.y() + self.offset_y)
self.frames = BULLET_FRAMES
else:
self.setPos(self.x(), self.y() - BULLET_SPEED)
self.frames -= 1
if self.frames <= 0 or self.y() < -30:
self.active = False
self.setVisible(False)
self.setPos(self.scr_w, self.scr_h)
def hit_enemy(self, enemy):
""" Called on collision detect.
:param: enemy : Enemy class """
self.active = False
self.setVisible(False)
self.setPos(self.scr_w, self.scr_h)
enemy.hp -= 1
class MainWindow(QMainWindow):
""" Main app window. """
def __init__(self, screenwidth, screenheight):
self.screenwidth = screenwidth
self.screenheight = screenheight
self.scene = None
self.view_w = 0
self.view_h = 0
self.game_started = False
# Set up user interface from ui_main.py file
QMainWindow.__init__(self)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.setStyleSheet('background-image:url(Images/prestige-COD.jpg); background-position: tiled;')
size = self.ui.graphicsView.size()
self.view_w = size.width()
self.view_h = size.height()
self.ui.graphicsView.setRenderHint(QPainter.RenderHint.Antialiasing)
self.ui.graphicsView.setHorizontalScrollBarPolicy(Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
self.ui.graphicsView.setVerticalScrollBarPolicy(Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
bg = QPixmap('Images/bg1.jpg')
bg = bg.scaled(size.width(), size.height())
self.ui.graphicsView.setBackgroundBrush(QBrush(bg))
self.ui.graphicsView.setCacheMode(QGraphicsView.CacheModeFlag.CacheBackground)
self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.ViewportUpdateMode.BoundingRectViewportUpdate)
self.ui.graphicsView.hide()
self.ui.label.setText(introduction_msg)
self.ui.actionNo_sound.triggered.connect(self.action_no_sound)
self.ui.actionSound.triggered.connect(self.action__sound)
self.ui.actionQuit.triggered.connect(self.exit_app)
self.show()
def action_no_sound(self):
global sound_on
sound_on = False
def action__sound(self):
global sound_on
sound_on = True
def keyPressEvent(self, event):
if event.key() == Qt.Key.Key_N:
self.new_game()
if event.key() == Qt.Key.Key_Q:
self.exit_app()
def new_game(self):
self.ui.graphicsView.show()
self.ui.label.hide()
self.ui.graphicsView.setFocus()
self.game_started = True
# Add scene after window is displayed to get graphics view size
self.scene = Scene(self.view_w, self.view_h)
if self.scene.game_over is True:
print("Game over")
# self.scene.setSceneRect(0, 0, self.view_w, self.view_h)
self.ui.graphicsView.setScene(self.scene)
self.ui.graphicsView.show()
def exit_app(self):
QApplication.quit()
sys.exit(0)
if __name__ == '__main__':
app = QApplication(sys.argv)
QFontDatabase.addApplicationFont("GUI/Robotica.ttf")
with open("GUI/stylesheet", "r") as fh:
app.setStyleSheet(fh.read())
screen_resolution = app.primaryScreen().geometry()
width, height = screen_resolution.width(), screen_resolution.height()
window = MainWindow(width, height)
sys.exit(app.exec())