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shuvo.py
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shuvo.py
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#Inspired by freeCobeCamp
import pygame
import math
import random
from pygame import mixer
pygame.init()
screen = pygame.display.set_mode((800, 600))
# Background
background = pygame.image.load('back.jpg')
running = True
# Background Sound
mixer.music.load('background.wav')
mixer.music.play(-1)
# Title and Icon
pygame.display.set_caption("Space Invaders")
icon = pygame.image.load('myico.png')
pygame.display.set_icon(icon)
# Player
playerImg = pygame.image.load('spc.png')
playerX = 370
playerY = 480
playerX_change = 0
playerY_change = 0
def player(x, y):
screen.blit(playerImg, (x, y))
# Enemy
enemyImg = []
enemyX = []
enemyY = []
enemyX_change = []
enemyY_change = []
num_of_enemies = 6
for i in range(num_of_enemies):
enemyImg.append(pygame.image.load('enemy.png'))
enemyX.append(random.randint(0, 735))
enemyY.append(random.randint(50, 150))
enemyX_change.append(0.5)
enemyY_change.append(40)
def enemy(x, y, i):
screen.blit(enemyImg[i], (x, y))
# Bullet
# ready - you can't see the bullet on the screen
# fire - bullet is moving
bulletImg = pygame.image.load('bullet.png')
bulletX = 0
bulletY = 480
bulletX_change = 0
bulletY_change = 3
bullet_state = "ready"
#Score
score_value = 0
font = pygame.font.Font('freesansbold.ttf', 32)
textX = 10
textY = 10
# Game Over Text
over_font = pygame.font.Font('freesansbold.ttf', 64)
def show_score(x,y):
score = font.render("Score : "+ str(score_value),True,(255,255,255))
screen.blit(score, (x, y))
def game_over_text():
over_text = over_font.render("Game Over", True, (255, 255, 255))
screen.blit(over_text, (200, 250))
def fire_bullet(x, y):
global bullet_state
bullet_state = "fire"
screen.blit(bulletImg, (x + 20, y + 10))
def isCollision(enemyX, enemyY, bulletX, bulletY):
distance = math.sqrt(math.pow(enemyX-bulletX,2) + math.pow(enemyY-bulletY,2))
if distance < 27:
return True
else:
return False
# Game Loop
while running:
# RGB
screen.fill((0, 0, 0))
# background
screen.blit(background, (0, 0))
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
# if keystroke is pressed
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
# print("Left Arrow is pressed")
playerX_change = -1
if event.key == pygame.K_RIGHT:
# print("Right Arrow is pressed")
playerX_change = 1
if event.key == pygame.K_UP:
# print("Left Arrow is pressed")
playerY_change = -1
if event.key == pygame.K_DOWN:
# print("Right Arrow is pressed")
playerY_change = 1
if event.key == pygame.K_SPACE:
if bullet_state == "ready":
bullet_sound = mixer.Sound('laser.wav')
bullet_sound.play()
bulletX = playerX
bulletY = playerY
fire_bullet(bulletX, bulletY)
# if keystroke is released
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
# print("Keystroke has been released")
playerX_change = 0
if event.key == pygame.K_UP or event.key == pygame.K_DOWN:
# print("Keystroke has been released")
playerY_change = 0
# Checking Boundary of Spaceship
playerX += playerX_change
playerY += playerY_change
if playerX <= 0:
playerX = 0
elif playerX >= 736:
playerX = 736
elif playerY <= 0:
playerY = 0
elif playerY >= 536:
playerY = 536
# Enemy Movement
for i in range(num_of_enemies):
#Game Over
if enemyY[i] > 440:
for j in range(num_of_enemies):
enemyY[j] = 2000
game_over_text()
break
enemyX[i] += enemyX_change[i]
if enemyX[i] <= 0:
enemyX_change[i] = 0.5
enemyY[i] += enemyY_change[i]
elif enemyX[i] >= 736:
enemyX_change[i] = -0.5
enemyY[i] += enemyY_change[i]
# Collision
collision = isCollision(enemyX[i], enemyY[i], bulletX, bulletY)
if collision:
explosion_sound = mixer.Sound('explosion.wav')
explosion_sound.play()
bulletY = playerY
bullet_state = "ready"
score_value += 1
#print(score_value)
enemyX[i] = random.randint(0, 735)
enemyY[i] = random.randint(50, 150)
enemy(enemyX[i], enemyY[i], i)
# Bullet Movement
if bulletY <= -24:
bulletY = playerY
bullet_state = "ready"
if bullet_state == "fire":
fire_bullet(bulletX, bulletY)
bulletY -= bulletY_change
player(playerX, playerY)
show_score(textX, textY)
pygame.display.update()