Python Game Programming Tutorial: SpaceWar 5

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#Python #Tutorial #Beginner

[shipraagrawal]

It is really good and so easy to understand because of you

Thank you❤❤

[ashwinp]

thank u so much for this totorial, i am ten years old and this is my first ever real game thanks again

[gorgestboi]

#Space Wars
#created by @TokyoEdTech / written in python 2.7 (minor differences for 3.6 which is what I'm using)
import turtle
import os
import random
# required by mac
turtle.fd(0)
#animations speed
turtle.speed(0)
#bgcolour
turtle.bgcolor('black')
#hide turtle
turtle.ht()
#saves memory
turtle.setundobuffer(1)
#this speeds up drawing later
turtle.tracer(1)

class Sprite(turtle.Turtle):
def __init__(self, spriteshape, color, startx, starty):
turtle.Turtle.__init__(self, shape = spriteshape)
self.speed(0)
self.penup()
self.color(color)
self.fd(0)
self.goto(startx, starty)
self.speed = 1

def move(self):
self.fd(self.speed)

#Boundary detection
if self.xcor() > 290:
self.setx(290)
self.rt(60)
if self.xcor() < -290:
self.setx(-290)
self.rt(60)

if self.ycor() > 290:
self.sety(290)
self.rt(60)
if self.ycor() < -290:
self.sety(-290)
self.rt(60)
def is_collision(self, other):
if (self.xcor() >= (other.xcor() - 20)) and \
(self.xcor() <= (other.xcor() + 20)) and \
(self.xcor() >= (other.ycor() - 20)) and \
(self.xcor() <= (other.ycor() + 20)):
return True
else:
return False

class Player(Sprite):
def __init__(self, spriteshape, color, startx, starty):
Sprite.__init__(self, spriteshape, color, startx, starty)
self.speed = 4
self.lives = 3

def turn_left(self):
self.lt(45)
def turn_right(self):
self.lt(-45)
def accelerate(self):
self.speed += 1
def decelerate(self):
self.speed -= 1

class Game():
def __init__(self):
self.level = 1
self.score = 0
self.state = 'playing'
self.pen = turtle.Turtle()
self.lives = 3

def draw_border(self):
#draw border
self.pen.speed(0)
self.pen.color('white')
self.pen.pensize(3)
self.pen.penup()
self.pen.goto(-300, 300)
self.pen.pendown()
for side in range(4):
self.pen.fd(600)
self.pen.rt(90)
self.pen.penup()
self.pen.ht()

class Enemy(Sprite):
def __init__(self, spriteshape, color, startx, starty):
Sprite.__init__(self, spriteshape, color, startx, starty)
self.speed = 6
self.setheading(random.randint(0, 360))

class missile(Sprite):
def __init__(self, spriteshape, color, startx, starty):
Sprite.__init__(self, spriteshape, color, startx, starty)
stretch_len=0.4, outline=None)
self.speed = 20
self.status = 'ready'

def fire(self):
if self.status == 'ready':
self.status = 'firing'
def move(self):
if self.status == 'firing':
self.fd(self.speed)
#create game object
game = Game()

#draw border
game.draw_border()


# create sprites
player = Player('triangle', 'white', 0, 0)
enemy = Enemy('circle', 'red', -100, 0)
missile = Missile('triangle', 'yellow', 0, 0)
#key bindings
turtle.onkey(player.turn_left, 'Left')
turtle.onkey(player.turn_right, 'Right')
turtle.onkey(player.accelerate, 'Up')
turtle.onkey(player.decelerate, 'Down')
turtle.listen()

# main gameloop
while True:
player.move()
enemy.move()
#check for colission
if player.is_collision(enemy):
x = random.randint(-250, 250)
y = random.randint(-250, 250)
enemy.goto(x, y)

[scuffedgod]

can we set the mouse button to shoot ?

[teacherinthailan]

Well, I've made it this far. Thank you so much TokyoEdtech. Your tutorials are helping me and others so much.

[creamygoodness]

I watch all your python vids, please notice me senpai!

[Sam-iqss]

AttributeError : Missile attribute has no object missile
kindly help

[KERDYftVADOR]

Hi, my missile does not stop advancing, it appears outside the frame in position (-1000, 1000) and it returns to the frame as it advances.

[GasimovTV]

Hi
Do you know how to make infite ammo,
Could you make a tutorial on that?

[celiacasimiro]

When you realise he wrote missile and not self before he did: DA STUDENT HAS BECOME DA MASTER!!

[Success-]

it seems like you skipped alot from video 4 to 5 as far as the syntax is concerned, you have the sprites in 5 but did not start them in video 4.

[gorgestboi]

I’m going to ask a few questions through out this most likely, so just letting you know.

[sebastianjulonchamana]

what's the difference between turtle.onkey and turtle.onkeypress, why is missile.move() always moving? shouldn't be moving only when's space key is pressed?

[Ethan-xjhb]

in "self.fd(self.speed)" what does fd mean?

[ahmadwehbe]

dude why is the animation like slow can I solve this problem ?

[gorgestboi]

For me it says stretch_len is a syntax error. My code is the same as yours but I will give it to you anyway

[anthonyzhu]

Is there anyway to make it less laggy?