Creating a 2D PC Space Invaders Arcade Game Using Unity, C#

Create and configure the player object

Create the PlayerController script and code moving the player left and right on screen

Add code that prevents the player object from moving off the left side of the screen or the right side of the screen

Create the prefab that represents a player projectile

Add code that creates a player projectile when the space bar is pressed

Add code that moves the player projectile upward from just above the player

Create the Game and Enemy objects in the Unity editor

Create and assign the variables needed to code the creation of the enemies

Add the code that creates four rows of enemies on screen, eight enemies in each row

Add code that makes an enemy disappear when hit by a player projectile

Add code that prevents the player from firing when a player projectile is already on screen

Add code that moves the enemy group horizontally

Add code that moves the enemy group vertically

Create and assign the variables needed to code the generation of enemy fire

Add code that generates enemy fire

Add code to make the enemy projectiles move downward from just below enemy objects

Add code to make the player disappear when hit by an enemy projectile

Configure objects so they will not move when hit by other objects

Add code that destroys a player projectile when it reaches the top of the screen

Add code that destroys an enemy projectile when it reaches the bottom of the screen

Create the objects that represent each of five lives in the game

Create and assign the variables needed to code losing lives and start and end game behavior

Add code that controls when enemies start and stop moving and firing

Continue adding code that controls when enemies start and stop moving and firing

Add code that removes a life each time the player is hit

Add code that displays the console message Game Over when the player is hit after all lives lost

Add code that displays the console message Game Over when the enemy breaches the player row

Add code that displays the console message You Win! when the player knocks out all enemies

Create the objects in the Unity editor that make up the score display

Add the code that updates the score display each time an enemy is hit

Create objects in the Unity editor that make up the level display

Continue creating the objects in the Unity editor that make up the level display

Create and assign the variables needed to code the level display

Add the code that updates the level display whenever the game level changes

Create the panels in the Unity editor for the Start Game dialog

Add the Play Game button to the Start Game dialog and assign the function that executes when the button is clicked

Add the text items to the Start Game dialog that make up the line that displays enemy speeds at each game level

Add the text items to the Start Game dialog that make up the line that displays enemy fire rates at each game level

Add the text items to the Start Game dialog that make up the lines that display hit points at each game level and control keys

Create objects in the Unity editor that make up the border for all dialogs

Create and assign the variables needed to code the Start Game dialog

Add the code that controls the Start Game dialog

Create the objects in the Unity editor that make up the End Game dialog

Add the code that sets the End Game dialog text to Game Over when the game is lost

Add the code that sets the End Game dialog text to You Win! when the game is won

Create the objects in the Unity editor that make up the Exit Game dialog

Add the code that manages the Exit Game dialog

Create all variables needed to code restarting the game, leveling up and resetting the game

Add the code that re-initializes variables for game restart and replaces values with variables for enemy speed and enemy fire rate for multiple levels

Add code that sets hits points, enemy speed and enemy fire rate at each game level

Add calls to the ResetGame function

Add code that destroys any projectiles that are present when the game is reset

Add code that restores all lives when the game resets

Add code that restores all enemies when the game is reset

Add code that resets enemy movement and fire variables and resets player to starting position when game is reset

Create folders for sounds and audio scripts and move sounds from asset package to new sound folder

Implement the sound effect that is heard when an enemy is hit

Implement the sound effect that is heard when the player fires

Implement the sound effect that is heard when the player is hit

Implement the sound effect that is heard when the enemies move

Add code that toggles all sound effects on and off when the S key is pressed

Conduct final testing of the game - losing and winning at different levels of the game

Build a standalone application and see your masterpiece in all of its full screen glory!

In this course conclusion, I share my thoughts on several ways you can add to the game we have created here