{D8315A368F30B16E69}

PyGameZeroInvaders2.py assets.json

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# source: https://github.com/TechnoVisual/Pygame-Zero/blob/master/invaders2/invaders2.py
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​
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import pgzrun, math, re, time
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from random import randint
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player = Actor("player", (400, 550))
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boss = Actor("boss")
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gameStatus = 0
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highScore = []
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​
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def draw(): # Pygame Zero draw function
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    screen.blit('background', (0, 0))
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    if gameStatus == 0: # display the title page
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        drawCentreText("PYGAME ZERO INVADERS\n\n\nType your name then\npress Enter to start\n(arrow keys move, space to fire)")
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        screen.draw.text(player.name , center=(400, 500), owidth=0.5, ocolor=(255,0,0), color=(0,64,255) , fontsize=60)
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    if gameStatus == 1: # playing the game
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        player.image = player.images[math.floor(player.status/6)]
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        player.draw()
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        if boss.active: boss.draw()
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        drawLasers()
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        drawAliens()
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        drawBases()
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        screen.draw.text(str(score) , topright=(780, 10), owidth=0.5, ocolor=(255,255,255), color=(0,64,255) , fontsize=60)
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        screen.draw.text("LEVEL " + str(level) , midtop=(400, 10), owidth=0.5, ocolor=(255,255,255), color=(0,64,255) , fontsize=60)
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        drawLives()
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        if player.status >= 30:
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            if player.lives > 0:
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                drawCentreText("YOU WERE HIT!\nPress Enter to re-spawn")
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            else:
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                drawCentreText("GAME OVER!\nPress Enter to continue")
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        if len(aliens) == 0 :
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            drawCentreText("LEVEL CLEARED!\nPress Enter to go to the next level")
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    if gameStatus == 2: # game over show the leaderboard
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        drawHighScore()
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​
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def drawCentreText(t):
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    screen.draw.text(t , center=(400, 300), owidth=0.5, ocolor=(255,255,255), color=(255,64,0) , fontsize=60)
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def update(): # Pygame Zero update function
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    global moveCounter, player, gameStatus, lasers, level, boss
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    if gameStatus == 0:
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        if keyboard.RETURN and player.name != "": gameStatus = 1
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    if gameStatus == 1:
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        if player.status < 30 and len(aliens) > 0:
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            checkKeys()
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            updateLasers()
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            updateBoss()
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            if moveCounter == 0: updateAliens()
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            moveCounter += 1
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            if moveCounter == moveDelay: moveCounter = 0
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            if player.status > 0:
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                player.status += 1
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                if player.status == 30:
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                    player.lives -= 1
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        else:
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            if keyboard.RETURN:
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                if player.lives > 0:
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                    player.status = 0
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                    lasers = []
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                    if len(aliens) == 0:
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                        level += 1
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                        boss.active = False
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                        initAliens()
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                        initBases()
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                else:
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                    readHighScore()
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                    gameStatus = 2
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                    writeHighScore()
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    if gameStatus == 2:
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        if keyboard.ESCAPE:
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            init()
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            gameStatus = 0
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def on_key_down(key):
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    global player
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    if gameStatus == 0 and key.name != "RETURN":
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        if len(key.name) == 1:
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            player.name += key.name
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        else:
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            if key.name == "BACKSPACE":
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                player.name = player.name[:-1]
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def readHighScore():
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    global highScore, score, player
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    highScore = []
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    try:
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        hsFile = open("highscores.txt", "r")
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        for line in hsFile:
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            highScore.append(line.rstrip())
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    except:
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        pass
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    highScore.append(str(score)+ " " + player.name)
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    highScore.sort(key=natural_key, reverse=True)
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​
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def natural_key(string_):
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    return [int(s) if s.isdigit() else s for s in re.split(r'(\d+)', string_)]
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​
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def writeHighScore():
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    global highScore
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    hsFile = open("highscores.txt", "w")
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    for line in highScore:
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        hsFile.write(line + "\n")
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​
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def drawHighScore():
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    global highScore
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    y = 0
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    screen.draw.text("TOP SCORES", midtop=(400, 30), owidth=0.5, ocolor=(255,255,255), color=(0,64,255) , fontsize=60)
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    for line in highScore:
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        if y < 400:
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            screen.draw.text(line, midtop=(400, 100+y), owidth=0.5, ocolor=(0,0,255), color=(255,255,0) , fontsize=50)
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            y += 50
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    screen.draw.text("Press Escape to play again" , center=(400, 550), owidth=0.5, ocolor=(255,255,255), color=(255,64,0) , fontsize=60)
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​
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def drawLives():
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    for l in range(player.lives): screen.blit("life", (10+(l*32),10))
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​
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def drawAliens():
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    for a in range(len(aliens)): aliens[a].draw()
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​
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def drawBases():
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    for b in range(len(bases)): bases[b].drawClipped()
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​
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def drawLasers():
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    for l in range(len(lasers)): lasers[l].draw()
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​
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def checkKeys():
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    global player, score
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    if keyboard.left:
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        if player.x > 40: player.x -= 5
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    if keyboard.right:
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        if player.x < 760: player.x += 5
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    if keyboard.space:
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        if player.laserActive == 1:
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            sounds.gun.play()
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            player.laserActive = 0
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            clock.schedule(makeLaserActive, 1.0)
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            lasers.append(Actor("laser2", (player.x,player.y-32)))
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            lasers[len(lasers)-1].status = 0
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            lasers[len(lasers)-1].type = 1
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            score -= 100
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​
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def makeLaserActive():
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    global player
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    player.laserActive = 1
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def checkBases():
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    for b in range(len(bases)):
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        if l < len(bases):
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            if bases[b].height < 5:
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                del bases[b]
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​
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def updateLasers():
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    global lasers, aliens
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    for l in range(len(lasers)):
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        if lasers[l].type == 0:
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            lasers[l].y += 2
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            checkLaserHit(l)
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            if lasers[l].y > 600: lasers[l].status = 1
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        if lasers[l].type == 1:
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            lasers[l].y -= 5
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            checkPlayerLaserHit(l)
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            if lasers[l].y < 10: lasers[l].status = 1
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    lasers = listCleanup(lasers)
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    aliens = listCleanup(aliens)
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​
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def listCleanup(l):
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    newList = []
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    for i in range(len(l)):
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        if l[i].status == 0: newList.append(l[i])
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    return newList
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def checkLaserHit(l):
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    global player
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    if player.collidepoint((lasers[l].x, lasers[l].y)):
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        sounds.explosion.play()
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        player.status = 1
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        lasers[l].status = 1
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    for b in range(len(bases)):
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        if bases[b].collideLaser(lasers[l]):
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            bases[b].height -= 10
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            lasers[l].status = 1
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​
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def checkPlayerLaserHit(l):
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    global score, boss
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    for b in range(len(bases)):
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        if bases[b].collideLaser(lasers[l]): lasers[l].status = 1
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    for a in range(len(aliens)):
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        if aliens[a].collidepoint((lasers[l].x, lasers[l].y)):
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            lasers[l].status = 1
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            aliens[a].status = 1
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            score += 1000
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    if boss.active:
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        if boss.collidepoint((lasers[l].x, lasers[l].y)):
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            lasers[l].status = 1
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            boss.active = 0
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            score += 5000
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def updateAliens():
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    global moveSequence, lasers, moveDelay
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    movex = movey = 0
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    if moveSequence < 10 or moveSequence > 30: movex = -15
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    if moveSequence == 10 or moveSequence == 30:
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        movey = 40 + (5*level)
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        moveDelay -= 1
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    if moveSequence >10 and moveSequence < 30: movex = 15
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    for a in range(len(aliens)):
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        animate(aliens[a], pos=(aliens[a].x + movex, aliens[a].y + movey), duration=0.5, tween='linear')
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        if randint(0, 1) == 0:
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            aliens[a].image = "alien1"
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        else:
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            aliens[a].image = "alien1b"
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            if randint(0, 5) == 0:
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                lasers.append(Actor("laser1", (aliens[a].x,aliens[a].y)))
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                lasers[len(lasers)-1].status = 0
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                lasers[len(lasers)-1].type = 0
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                sounds.laser.play()
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        if aliens[a].y > 500 and player.status == 0:
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            sounds.explosion.play()
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            player.status = 1
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            player.lives = 1
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    moveSequence +=1
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    if moveSequence == 40: moveSequence = 0
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​
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def updateBoss():
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    global boss, level, player, lasers
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    if boss.active:
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        boss.y += (0.3*level)
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        if boss.direction == 0: boss.x -= (1* level)
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        else: boss.x += (1* level)
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        if boss.x < 100: boss.direction = 1
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        if boss.x > 700: boss.direction = 0
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        if boss.y > 500:
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            sounds.explosion.play()
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            player.status = 1
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            boss.active = False
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        if randint(0, 30) == 0:
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            lasers.append(Actor("laser1", (boss.x,boss.y)))
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            lasers[len(lasers)-1].status = 0
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            lasers[len(lasers)-1].type = 0
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    else:
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        if randint(0, 800) == 0:
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            boss.active = True
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            boss.x = 800
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            boss.y = 100
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            boss.direction = 0
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​
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def init():
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    global lasers, score, player, moveSequence, moveCounter, moveDelay, level, boss
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    initAliens()
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    initBases()
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    moveCounter = moveSequence = player.status = score = player.laserCountdown = 0
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    lasers = []
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    moveDelay = 30
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    boss.active = False
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    player.images = ["player","explosion1","explosion2","explosion3","explosion4","explosion5"]
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    player.laserActive = 1
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    player.lives = 3
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    player.name = ""
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    level = 1
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​
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def initAliens():
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    global aliens, moveCounter, moveSequence
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    aliens = []
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    moveCounter = moveSequence = 0
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    for a in range(18):
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        aliens.append(Actor("alien1", (210+(a % 6)*80,100+(int(a/6)*64))))
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        aliens[a].status = 0
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​
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def drawClipped(self):
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    screen.surface.blit(self._surf, (self.x-32, self.y-self.height+30),(0,0,64,self.height))
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​
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def collideLaser(self, other):
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    return (
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        self.x-20 < other.x+5 and
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        self.y-self.height+30 < other.y and
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        self.x+32 > other.x+5 and
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        self.y-self.height+30 + self.height > other.y
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    )
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​
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def initBases():
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    global bases
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    bases = []
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    bc = 0
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    for b in range(3):
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        for p in range(3):
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            bases.append(Actor("base1", midbottom=(150+(b*200)+(p*40),520)))
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            bases[bc].drawClipped = drawClipped.__get__(bases[bc])
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            bases[bc].collideLaser = collideLaser.__get__(bases[bc])
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            bases[bc].height = 60
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            bc +=1
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init()
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pgzrun.go()