Modify this space invaders game in the following ways. $25$ Use an SVG image for each alien

$25$ Use an SVG for the shooter

$25$ Add a custom feature $($each alien rotates, changes color, undulates, etc.$)$

$25$ Add a custom feature for the player $($rotates$,$ changes color, explodes, fades out,

etc.$)$ Code to modify included here. import pygame, random

#Initialize pygame

pygame.init$()$

#Set display surface

WINDOW$\_$WIDTH $=1200$

WINDOW$\_$HEIGHT $=700$

display$\_$surface $=$ pygame.display.set$\_$mode$(($WINDOW$\_$WIDTH, WINDOW$\_$HEIGHT$))$

pygame.display.set$\_$caption$("$Space Invaders"$)$

#Set FPS and clock

FPS $=60$

clock $=$ pygame.time.Clock$()$

#Define Classes

class Game$()$:

$"""$A class to help control and update gameplay"""

def $\_\_$init$\_\_($self$,$ player, alien$\_$group, player$\_$bullet$\_$group, alien$\_$bullet$\_$group$)$:

$"""$Initialze the game"""

#Set game values

self.round$\_$number $=1$

self.score $=0$

self.player $=$ player

self.alien$\_$group $=$ alien$\_$group

self.player$\_$bullet$\_$group $=$ player$\_$bullet$\_$group

self.alien$\_$bullet$\_$group $=$ alien$\_$bullet$\_$group

#Set sounds and music

self.new$\_$round$\_$sound $=$ pygame.mixer.Sound$("$new$\_$round.wav"$)$

self.breach$\_$sound $=$ pygame.mixer.Sound$("$breach$.$wav"$)$

self.alien$\_$hit$\_$sound $=$ pygame.mixer.Sound$("$alien$\_$hit.wav"$)$

self.player$\_$hit$\_$sound $=$ pygame.mixer.Sound$("$player$\_$hit.wav"$)$

#Set font

self.font $=$ pygame.font.Font$("$Facon$.$ttf$",32)$

def update$($self$)$:

$"""$Update the game"""

self.shift$\_$aliens$()$

self.check$\_$collisions$()$

self.check$\_$round$\_$completion$()$

def draw$($self$)$:

$"""$Draw the HUD and other information to display"""

#Set colors

WHITE $=(255,255,255)$

#Set text

score$\_$text $=$ self.font.render$("$Score: $"+$ str$($self$.$score$),$ True, WHITE$)$

score$\_$rect $=$ score$\_$text.get$\_$rect$()$

score$\_$rect.centerx $=$ WINDOW$\_$WIDTH$//2$

score$\_$rect.top $=10$

round$\_$text $=$ self.font.render$("$Round: $"+$ str$($self$.$round$\_$number$),$ True, WHITE$)$

round$\_$rect $=$ round$\_$text.get$\_$rect$()$

round$\_$rect.topleft $=(20,10)$

lives$\_$text $=$ self.font.render$("$Lives: $"+$ str$($self$.$player.lives$),$ True, WHITE$)$

lives$\_$rect $=$ lives$\_$text.get$\_$rect$()$

lives$\_$rect.topright $=($WINDOW$\_$WIDTH $-20,10)$

#Blit the HUD to the display

display$\_$surface.blit$($score$\_$text, score$\_$rect$)$

display$\_$surface.blit$($round$\_$text, round$\_$rect$)$

display$\_$surface.blit$($lives$\_$text, lives$\_$rect$)$

pygame.draw.line$($display$\_$surface, WHITE, $(0,50),($WINDOW$\_$WIDTH, $50),4)$

pygame.draw.line$($display$\_$surface, WHITE, $(0,$ WINDOW$\_$HEIGHT $-100),($WINDOW$\_$WIDTH, WINDOW$\_$HEIGHT $-100),4)$

def shift$\_$aliens$($self$)$:

$"""$Shift a wave of aliens down the screen and reverse direction"""

#Determine if alien group has hit an edge

shift $=$ False

for alien in $($self$.$alien$\_$group.sprites$())$:

if alien.rect.left or alien.rect.right $>=$ WINDOW$\_$WIDTH:

shift $=$ True

#Shift every alien down, change direction, and check for a breach

if shift:

breach $=$ False

for alien in $($self$.$alien$\_$group.sprites$())$:

#Shift down

alien.rect.y $+=10*$self$.$round$\_$number

#Reverse the direction and move the alien off the edge so 'shift' doesn't trigger

alien.direction $=-1*$alien$.$direction

alien.rect.x $+=$ alien.direction$*$alien$.$velocity

#Check if an alien reached the ship

if alien.rect.bottom $>=$ WINDOW$\_$HEIGHT $-100$:

breach $=$ True

#Aliens breached the line

if breach:

self.breach$\_$sound.play$()$

self.player.lives $-=1$

self.check$\_$game$\_$status$("$Aliens breached the line!", "Press 'Enter' to continue"$)$

def check$\_$collisions$($self$)$:

$"""$Check for collisions"""

#See if any bullet in the player bullet group hit an alien in the alien group

if pygame.sprite.groupcollide$($self$.$player$\_$bullet$\_$group, self.alien$\_$group, True, True$)$:

self.alien$\_$hit$\_$sound.play$()$

self.score $+=100$

#See if the player has collided with any bullet in the alien bullet group

if pygame.sprite.spritecollide$($self$.$player, self.alien$\_$bullet$\_$group, True$)$:

self.player$\_$hit$\_$sound.play$()$

self.player.lives $-=1$

self.check$\_$game$\_$status$("$You$\text{'}$ve been hit!", "Press 'Enter' to continue"$)$

def check$\_$round$\_$completion$($self$)$:

$"""$Check to see if a player has completed a single round"""

#If the alien group is empty, you've completed the round

if not $($self$.$alien$\_$group$)$:

self.score $+=1000*$self$.$round$\_$number

self.round$\_$number $+=1$

self.start$\_$new$\_$round$()$

def start$\_$new$\_$round$($self$)$: