The document discusses the steps taken to create a 2D spaceship game in Game Maker. It describes designing sprite assets like the player ship and laser projectile. It also covers setting sprite properties, creating game objects with events and coding keyboard controls for movement. Additional topics include making a scrolling star background, adding particle system thrusters and sound effects. Enemy sprites are animated and spawned with movement behavior. Health is tracked using a shield variable so enemies can be destroyed by the player's laser.

1. 2D game design analysis
2D game design analysis
Creating a game using Game Maker
Sprite editor & Sprite properties
The first step of making my 2D game is making a sprite; a sprite is a two dimensional image, it is
integrated into a larger scene without loosing quality. I decided to design a spaceship experimenting
with all the different tools and colours available.
I kept it simple but also colourful using both the pain tool for the body and the air brush tool for the
shell of the ship.
Rafiq Oladujoye

2. 2D game design analysis
What I done here was set the sprite properties so that I don’t have any problems when I’m coding.
First of all I had to set the origin of the sprite to the centre so that when this sprite is used in coding
it is done from the centre.
Secondly I went to modify mask and dealt with the collision mask. A collision determines the area in
which the player will actually get hurt by things like bullets. You can set the collision mask to a verity
if shaped or make it pixel precise, I used a diamond shape.
Creating an object & object properties & Coding keyboard controls
Rafiq Oladujoye

3. 2D game design analysis
Here I am creating an object and dealing with its properties. An object is one of the most important
parts in game maker, it where you code the behaviour of an object in the game.
I had to select solid so that the collision mask works, physics wasn’t selected because I am not using
any. Events and actions is where the coding happens, an event is an object that triggers something
to happen. Within the event column I added a step event which is something that occurs every step
of the game.
So here I am coding and the first thing that has to be done is the ‘hint’, for example ///movement.
This indicates that there object will be moving.
Rafiq Oladujoye

4. 2D game design analysis
Creating level testing codes
Here I created a room; which is also a level, following the tutorial I created a rectangular shaped
room in which I placed my sprite (player 1).
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5. 2D game design analysis
Setting movement limits
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6. 2D game design analysis
Movement limits are used so that the player or object doesn’t go off the screen when you move it. A
boarder is set around the room and acts as a barrier.
Creating a scrolling background
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7. 2D game design analysis
Here I was just experimenting making a background.
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8. 2D game design analysis
Eventually I settled for a standard star background; and made it two layered so I can create a moving
background, I created myself using the paint brush tool.
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9. 2D game design analysis
Particle system effect
This is the thrust of my spaceship that emits from the back of my ship symbolising a jet engine.
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10. 2D game design analysis
This is the coding for the particle system, using the index I was able to code it properly but as you
can see it doesn’t fit exactly on the spaceship.
Projectile and sound
Here I created a projectile (Laser) for my player 1 sprite and put in a blast sound .
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11. 2D game design analysis
This sprite I created using the paint brush, blue and yellow. I just created a plus shape and put a
yellow outline to highlight it.
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12. 2D game design analysis
Animated enemy sprite
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13. 2D game design analysis
Enemy object spawner and movement
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14. 2D game design analysis
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15. 2D game design analysis
Enemy destroyed by laser
Shield variable
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16. 2D game design analysis
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