The document describes a 2D side-scrolling sci-fi space shooter game created by the author in Game Maker. The player controls a spaceship and shoots lasers to destroy enemy ships while avoiding their lasers. The game tracks the player's score and health. The author discusses creating sprites for the player ship, enemies, and other elements and coding their movement, firing, health, scoring, and other functionality. The author is pleased with the completed game and feels they learned a lot in the process of designing and developing it.

1. Work Flow Arron Coakley
My idea is a sci-fi space shooter 2D game side scroll side. The background of the game is in space
since I’m creating a sci-fi game. The player controls a space ship (Player 1) which shoots red lasers. I
created this my self using game maker. The aim of the game is to destroy enemy ships and see how
long you can survive and how high you can get the score counter. However it’s not that easy because
the enemy’s ships shoot lasers at you and if you don’t avoid them your ship will be destroyed and
you will have to start over again.
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These images are taken from my 2D shooter game:
This background is set in space because my game is a sci -fi game. You can also see the spaceship
which you control, there is also a shield bar which is your health, when this is depleted you will be
destroyed and finally you can see a score counter below the shield bar. This represents how many
enemy ships you have destroyed.
Score counter
Player 1
Shield Bar
Intro:

2. Work Flow Arron Coakley
This image below is player 1. I just used the pen tool to create this ship, all you have to do is click and
a square will appear and that’s how I created this ship. This is what you control when you play the
game. I created this in game maker; this is also known as a sprite. This is a space ship because the
theme of this game is sci-fi and it is set in space so that’s why I created a space ship. This space ship
has a weapon and the weapon shoots red lasers which will destroyed enemy space ships if hit by
them.
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Player Pen Tool 1
Weapons
Sprite Editor

3. Work Flow Arron Coakley
This image below is enemy 1 and I just used the pen tool to create this ship in game maker. This is 1
out of 2 enemy ships which try to destroy you. They shoot lasers at you and if you get hit by them
your shield bar will go down and eventually you will be destroyed. This enemy has an animation; the
animation is a white light in the middle of the ship going around. This enemy ship has low health, if it
is shot by your lasers once it will be destroyed instantly.
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Animation:
Pen Tool
Animation
Enemy 1
Glow

4. Work Flow Arron Coakley
This image below is enemy 2 and I just used the pen tool to create this ship in game maker. This is
the second enemy ship which will try to destroy you. It also shoots lasers like enemy 1 does;
however this ship does not spawn as much as enemy 1. This ship has a red glow effect around it and
also it is a triangle shape unlike enemy 1, this is because I didn’t want the same type of ships
everywhere.
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Pen Tool
Weapon
Enemy 2
Glow
This shows the coding for enemy 2

5. Work Flow Arron Coakley
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Creating an Object:
Click this icon to
create some code
Click this to
create a object
Step 2
Step 3

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Step 4
These images shows how to create an object and how to code an object. Each event
has code in it some have massive amounts and some have only a few lines. Step 4
shows a peace of coding. This coding is for the Jet which is player 1, this is what it
looks like when it is complete.

7. Work Flow Arron Coakley
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Keyboard Controls & Movement:
Enter = Shoot
W = UP
A = LEFT
S = DOWN
D = RIGHT
This shows the coding for the movement of player 1.
As you can see it shows you how to move (UP,
DOWN, LEFT, RIGHT, SHOOT)
This also shows the limits which mean how far
player 1 and the enemy can go; it makes sure
nothing goes off the screen.
This type of coding is a step event; this means what
happen step by step in the game.

8. Work Flow Arron Coakley
This image shows all of the tabs I used to create
the game. I used sprites to create player 1, the
enemy’s etc... I also used sounds effects to make
the game feel and sound better. I used the
background tab to upload my background. I also
used the objects tab to give the sprites some
code and make them function. The final tab I
used was the room tab which was to create the
level its self.
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Click to create room
Creating a Level:
Limits:
This what a room looks like completed. This is where
I created my level background and if you wanted to
create one this is where you go to do that.

10. Work Flow Arron Coakley
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This image shows the coding for limits. You code limits to make sure
nothing goes off the screen. In the code you use the X&Y axis to set the
boundaries.

11. Work Flow Arron Coakley
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Creating a scrolling background:
To make the background look like it
is moving get the same image as
background 1 but this time click
“Remove Background”

12. Work Flow Arron Coakley
This image shows the coding for the particle system. The particle system is the particles in the game
like the size, gravity, life etc…
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Particle System Effect:

13. Work Flow Arron Coakley
Player Projectile & Sound:
This is the sprite for the laser which player 1 shoots.
This
shows
the
code
for the
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Player 1 laser
movement and the sound effect for the laser.

14. Work Flow Arron Coakley
This button is to
play the sound
Click this to select
the audio file for
your sound.
Once you are finished
with selecting your
audio file click ok to
confirm it.
Select your audio
file Once you have selected an audio
file click open to confirm it
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Enemy Spawn & Movement:
This is the code for spawning in the enemy’s objects, this shows the rate enemy which
spawn in the game.

16. Work Flow Arron Coakley
This image shows the enemy shot by laser coding. This means when you shoot the enemy with your
lasers they will be destroyed and your score counter will go up.
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Enemy destroyed:

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Enemy Projectile:
Enemy laser sprite
This image is the enemy laser sprite.
This shows the code of the enemy projectile (enemy laser). This code makes the enemy laser
travel towards player 1 space ship. It also shows the code for the sound effect.

18. Work Flow Arron Coakley
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c c c
c
c
c
c
c
c
c
This image shows the enemy projectile in action. As you can see they are going towards player 1.
c
Enemy Projectiles (enemy lasers)
Enemy 2
Enemy 2 laser
Enemy 1
Player 1

19. Work Flow Arron Coakley
Shield Variable:
This shows the code for the shield bar. The coding tells you that the max percent it can reach is 100
and once it hits zero it will be gona and you will be destroyed.
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This coding shows what colour I have
picked for the shield bar and where the
shield bar will appear on the screen. You
can have whatever colour and have the
shield bar where ever on the screen.

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Shield Bar at 100%
Shield Bar at 50%
Shield Bar at 0%

21. Work Flow Arron Coakley
This image shows the sprites
for the explosion for when
the player gets destroyed.
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These sprites are an animation.

22. Work Flow Arron Coakley
This shows the code for when the enemy laser hits player and what happens. When the player gets
hit the shield bar will go down by 25% each hit.
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Player being destroyed
This shows the code for the score variable/counter.
This is the code for the score
counter, in this code it shows
what colour, font and where
the counter will appear.
Score Counter
Shield Bar
Score Variable:

23. Work Flow Arron Coakley
Overall I’m happy with the 2D game I created. There were some problems but not too many like
misspelling in the code. However I finally solved the problems and I was able to continue making my
game. It was hard at first but eventually it became easier because I knew what to do and how to do
it. I have tested the final game and it works like I was hoping it would from the beginning. I enjoyed
working on the 2D side shooter game and I learned a lot from doing this.
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By Arron Coakley