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Added moving background #1

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Added moving background #1

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37 changes: 34 additions & 3 deletions Spacey.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,27 @@
import numpy as np


class Background_scroll(pygame.sprite.Sprite):
def __init__(self, background_image):
pygame.sprite.Sprite.__init__(self)
self.image = background_image
self.n_pixel_roll = 2 # Number of rows to roll from bottom to top
self.update_speed = 2 # Roll ever n frames

gameDisplay.blit(self.image, (0,0))

def update(self):
if frame_count % self.update_speed == 0:
# Convert surface to numpy array
imgarr = pygame.surfarray.array3d(self.image)
# Roll the image array
imgarr = np.roll(imgarr, self.n_pixel_roll, axis=1)
# Convert numpy array back to pygame surface
self.image = pygame.pixelcopy.make_surface(imgarr)

gameDisplay.blit(self.image, (0,0))


class Explosion(pygame.sprite.Sprite):
def __init__(self, frames, xcoord, ycoord, scale=1.5, update_n=1):
pygame.sprite.Sprite.__init__(self) # call Sprite initializer
Expand All @@ -16,6 +37,7 @@ def __init__(self, frames, xcoord, ycoord, scale=1.5, update_n=1):
self.update_n = update_n
self.update_counter = self.update_n


def update(self):
self.update_counter -= 1
if self.frame >= len(self.frames) - 1:
Expand Down Expand Up @@ -417,7 +439,7 @@ def main_menu():
quit()

# Update main menu
gameDisplay.blit(background, (0, 0))
gameDisplay.blit(background_img, (0, 0))
startbutton = gameDisplay.blit(start_button, (button_x_center, display_height * 0.4))
creditbutton = gameDisplay.blit(credit_button, (button_x_center, display_height * 0.5))
quitbutton = gameDisplay.blit(quit_button, (button_x_center, display_height * 0.6))
Expand All @@ -443,6 +465,11 @@ def credit_loop():

def game_loop():

# Instantiate background
global background_img, frame_count
frame_count = 0
background = Background_scroll(background_img)

# Instantiate Ship & Meteor and create a group for lasersprites
global ship, ship_group, meteors, lasers, score_count, enemies, fps, timer, enemy_lasers, score_count
global boss_bomb, explosions, explosions_boss
Expand Down Expand Up @@ -568,7 +595,7 @@ def game_loop():
continue

# Update display and sprites
gameDisplay.blit(background, (0, 0))
background.update()
ship.update()

if len(meteors) < 1 and enemies_meteors_spawning:
Expand Down Expand Up @@ -702,6 +729,10 @@ def game_loop():
# Set FPS
clock.tick(fps)

#frame counter
frame_count += 1



# Here we initialize pygame, set variables and start the actual game
pygame.init()
Expand Down Expand Up @@ -780,7 +811,7 @@ def game_loop():
missile = spritesheetspace2.subsurface(pygame.Rect(1093, 711, 19, 40))
boss_image = spritesheetspace2.subsurface(pygame.Rect(276, 0, 172, 151))
controlscheme = pygame.image.load('Textures/controlscheme.png')
background = pygame.image.load('Textures/space_background.png').convert()
background_img = pygame.image.load('Textures/space_background.png').convert()
credit_background = pygame.image.load('Textures/credits.png').convert()

# Load files used in the game
Expand Down