2dworkflow complete

Brandon Mcnamara 2D Game Workflow
The first step I took in designing my game was designing my player sprite. As I was going for a side
scrolling shooter with a space theme I decided to design a spaceship. When designing it I focused on
making it similar to a normal, generic spaceship. The original design had a darker colour but I
changed it to a teal colour after realising that it would be difficult to see the darker blue on the black
background. This is the final result:
I then edited my sprite’s mask to better fit the shape of the ship. After looking at all the hitboxes I
chose to stick with a simple Diamond hitbox as it covered most of the ship. This is the final player
sprite with the properties and mask:

After finishing my sprite I moved on to creating an object. This allows me to give code and other
properties to my player sprite. In here I created a movement script. This code stated that every step,
if a movement key is pressed down, the ship will move in a certain direction. It also defined the
movement boundaries for the room which I would then move on to create. The object menu and the
code are shown in the following screenshots:
After this I created a room to play my game in, this room would be the area in which the game is
played. I made it the correct size for the limits I had set and placed my player object at the area
where it should start. This is the current room:

At this point I could play my game, but it didn’t yet have a background so I could just fly around a
black background. I designed a background with some stars scattered around. I used the scrolling
background feature in the room to make the background move backwards to give the illusion of
movement. I also created a second background of a few larger stars and made them scroll
backwards too but at a higher speed. This gives the illusion of depth. This is the current build of the
game in play:

My next step was to create some enemies to fight. I created a sprite with multiple frames so that I
had animation on the enemy and made an object for the enemy. I made the enemy move left at a
constant speed and spawn in formations of three. The sprites and codes are shown below:
After this I created a laser object for my player object to shoot. I used a simple blue line as the laser
sprite and made the laser accelerate left to make hitting enemies more challenging. The player
object created this laser object and played a laser sound on every hit of the spacebar key. I also
added a collision script so that when the laser hits an enemy both entities are destroyed.

Now that enemies were able to be destroyed I decided to create an enemy explosion. I used an
alarm and a particle system to create an explosion that activated for a few seconds then stopped.
The final particle system script looked like this:
When the enemies could be destroyed I created another laser sprite, this time for the enemies. I
then made the enemy laser, upon creation, fly towards the player. these shots are easy to dodge but
as the enemies spawn in groups they can prove difficult to dodge, the enemy l aser sprites and codes
are below:
I then created a global variable to represent the health bar of the player. this global variable started
at 100 and every time an enemy or enemy projectile hit the player would reduce depending on what
hit. When the health reaches zero the player object is destroyed and the enemies stop firing. This
global variable was then represented in a draw script where the health bar would appear on the
player’s ui and show the change in health. Also in the draw script I represented a point value which
increased as enemies were killed using another global variable. The various scripts and ui changes
are shown below:
As you can see in the UI image above I have made a few more adjustments to my game. The top
green number refers to the amount of thrust the player has. Thrust is another global variable I added

where by holding shift the player can move twice as fast while spending this thrust. The thrust
regenerates over time. The second green number refers to the number of steps unti l the game is
complete. This means that after the player survives 5400 steps, or 3 minutes, they win the game. I
also added a 3 minute long piece of music which restarts whenever the player dies.Thescripts for
the thrust and timer are shown below:

After this I decided to create another weapon for the player, I decided on a shotgun style weapon
which would fire multiple lasers in a large spread. To create his I created a different laser sprite and
used it in a new laser object which instead of travelling straight forward travelled in a random
direction within a certain angle of the player. I then made it so that when the player clicked enter
the player object created multiple shotgun lasers creating a spread. This is how it looked in game
and the code behind it:
As this new weapon seemed a little too powerful I decided to turn it into a power up, I used a global
variable to determine whether or not the player had the power up and only allowed them to fire if

they had picked up the power up and not yet used it up. I also added a repair powerup which would
refill the players health if collected. The powerups would spawn and move left similar to the
movement of the enemies. These are the relevant sprites and codes related to my powerups:
I then turned my attention to creating more enemies, My first Idea for an enemy was one that
continually fired a beam of lasers that would damage the player intensely. I created the enemy
sprite and added a code to an alarm that once the enemy entered the battlefield after a few seconds
they would continuously create laser objects until they left the screen. This amount of time before
the firing allows the player to kill the enemy before they can fight back. These are the sprites and
codes related to the enemy:

After this enemy I had one final Idea for an enemy, This enemy would fire rockets that home in on
the player. I created an enemy and a rocket sprite and made the rocket follow the player by giving it
a forwards speed and changing the direction to constantly point at the player. these are the assets
related to this enemy:

2dworkflow complete

More Related Content

What's hot

Similar to 2dworkflow complete

More from Collegeemailbrandon

Recently uploaded

2dworkflow complete