06-Laser-Defender

In this section we create a lively top-down space shooter, learning coroutines, waypoints, scriptable objects, and more. This repo is part of our Complete Unity C# Developer 2D course (http://gdev.tv/cudgithub). (Ref: LD_CUD)

Complete Unity Developer 2D - Laser Defender

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In This Section

In this section we create a dynamic top-down shooter using everything Unity has to offer - waypoints for enemy paths, wave configuration using Scriptable Objects, coroutines for timed events, and more. (Ref: LD_CUD)

How To Build / Compile

Lecture List

Here are the lectures of the course for this section.

1 Welcome To Laser Defender

In this video (objectives)…

1. Overview of this section.
2. Focus on making a fun top-down shooter.
3. Lots of creative opportunity to make your flavour of top-down shooter.

After watching (learning outcomes)… Ready and raring to start this section.

2 Laser Defender Game Design

In this video (objectives)…

1. Discuss the features, player experience and core loop in our game.

After watching (learning outcomes)… You'll know exactly what we're making and you'll need to do to get started.

3 Set Up Project

In this video (objectives)…

1. Create new Unity project.
2. Download art assets and import them.
3. Set up background, player, enemy, camera and aspect ratio to find something we are happy with.

After watching (learning outcomes)… Create our project and be happy with the aspect ratio, sizes and proportions.

4 Movement & Time.deltaTime

In this video (objectives)…

1. Move the player on horizontal axis using Input.GetAxis().
2. Use Time.deltaTime to make our game framerate independent.
3. Also add vertical movement for the player.

After watching (learning outcomes)… Move your player ship in a way which is frame rate independent.

5 ViewPortToWorldPoint()

In this video (objectives)…

1. Construct our gameplay boundaries using the method ViewPortToWorldPoint().
2. Clamp our horizontal and vertical movement based upon our boundaries.
3. Add padding so that the player does not go off screen.

After watching (learning outcomes)… Limit your player's ship movement based upon relative camera space.

6 What Feature Next

In this video (objectives)…

1. Map out all the core and secondary features in our game and the main polish areas.
2. Identify our options for priorities and select our next feature to work on.

After watching (learning outcomes)… Understand the thought process for identifying your priorities for development.

7 Make Player Shoot

In this video (objectives)…

1. Create a projectile and connect it to the player.
2. Instantiate a the projectile using GetButtonDown().
3. Give the projectile some velocity so that it shoots upwards.

After watching (learning outcomes)… Instantiate a project and shoot it upwards.

8 Using Coroutines

In this video (objectives)…

1. Understand the core concept of how a coroutine works.
2. Create a simple coroutine that prints to the console, yields for 3 seconds, then prints to the console again.

After watching (learning outcomes)… Understand the basics of how coroutines work.

9 Repeat Fire Coroutine

In this video (objectives)…

1. Create a coroutine to call when firing.
2. Loop the coroutine using a while (true) loop.
3. Create a means in which to stop the coroutine.

After watching (learning outcomes)… Use coroutine to create repeating fire when the player is holding down the shoot button.

10 GameObject Shredder

In this video (objectives)…

1. Create Shredder object and script.
2. Test for trigger and then destroy object which collided.

After watching (learning outcomes)… Able to destroy GameObjects which collide with our trigger volume.

10b Laser Defender Instructor Hangout #1

In this video (objectives)…

1. How to remember code.
2. Gamasutra blog outlining 50 top tips for working in Unity.

After watching (learning outcomes)… Some new knowledge about how to improve your programming skills.

11 Create List Of Waypoints

In this video (objectives)…

1. Create empty game objects to use as waypoints.
2. Introduce lists and how they are different to arrays.
3. Store our path waypoints in our list.

After watching (learning outcomes)… Create a list to store enemy path waypoints.

12 Move Enemy On Path

In this video (objectives)…

1. Write pseudocode for our enemy movement.
2. Use the MoveTowards() method to move the enemy.

After watching (learning outcomes)… Move an enemy GameObject along a path using waypoints.

13 WaveConfig Scriptable Object

In this video (objectives)…

1. Map out what data will need to be in which of our scripts.
2. Create our WaveConfig script and populate it with our data variables.
3. Write public get methods to allow other classes to access our data.

After watching (learning outcomes)… Create a scriptable object for wave data with public methods that return the data values.

14 Using A Foreach Loop

In this video (objectives)…

1. Create a better way to return the path waypoints from our wave config using a list rather than returning the game object.
2. Add a new path and test.

After watching (learning outcomes)… Use A Foreach loop to return a list of waypoint transforms.

15 Spawn Multiple Enemies

In this video (objectives)…

1. Create EnemySpawner.cs to instantiate enemies into our scene.
2. Craft a coroutine that spawns an enemy then waits for time.
3. Use a for loop to continue instantiating enemies until the wave is complete.

After watching (learning outcomes)… Use a coroutine and for loop to spawn a wave of enemies.

16 WaveConfig For Path & Speed

In this video (objectives)…

1. Separate the movement speed and path away from the enemy prefab.
2. Dig deeper into using paramaters on a public method to set our wave config.

After watching (learning outcomes)… Able to feed the wave config information to the enemy path.

17 Spawn Multiple Enemy Waves

In this video (objectives)…

1. Coroutine inception! We place a coroutine within a coroutine.
2. Set up multiple different enemies and multiple different waves, spawning one after another.

After watching (learning outcomes)… Be able to spawn multiple waves one after another.

18 Loop All Enemy Waves

In this video (objectives)…

1. Turn our Start method into a coroutine.
2. Create a looping bool.
3. Create a do while loop that allows us to loop all waves over and over.

After watching (learning outcomes)… Loop all of our enemy waves using a do while loop.

19 Create Damage Dealer Class

In this video (objectives)…

1. Create a class called Damage Dealer that can be placed on whatever game objects we want to use to inflict damage.
2. Create an enemy class that can handle enemy's health.
3. Shoot a laser that harms enemy.

After watching (learning outcomes)… Create a class responsible for dealing damage to objects which have health.

20 Destroy Enemy

In this video (objectives)…

1. Create an if statement to destroy enemy if its health goes below zero.
2. Discuss in more detail the mechanism of creating a method which requires a parameter to be passed into it.

After watching (learning outcomes)… Destroy our enemies when they reach zero health.

21 Make Enemy Shoot

In this video (objectives)…

1. Instantiate laser and provide it velocity in negative y direction.
2. Create new laser prefab for the enemy to shoot.

After watching (learning outcomes)… Make the enemy shoot projectiles at random time intervals.

22 Player Life And Death

In this video (objectives)…

1. Use [Header] attribute to tidy up our variables in the inspector.
2. Make our enemy laser more visible.
3. Add collision, health and death for the player.

After watching (learning outcomes)… Able to destroy the player when its health reaches zero.

23 Layer Collision Matrix

In this video (objectives)…

1. Create layers and apply the correct rules to the layer collision matrix.
2. Destroy objects which are inflicting damage.
3. Protect against null within our damage collision event.

After watching (learning outcomes)… Apply layers and use the collision matrix to ensure only valid objects can influence each other.

24 Scrolling Background

In this video (objectives)…

1. Add a quad and change our background image to default texture type.
2. Create an apply a script which moves the texture offset each frame.

After watching (learning outcomes)… Create a scrolling background by incrementing texture offset each frame.

24b Laser Defender Instructor Hangout #2

In this video (objectives)…

1. Discuss the general approach of how to get an app onto the app store.
2. Talk about what we dont cover in this course regarding deployment.

After watching (learning outcomes)… Understanding of what it takes to get an app onto the app stores.

25 Introducing Particle Effects

In this video (objectives)…

1. Create our first particle system and tune it to look like a starfield.
2. Create a second starfield to show some parallax and different effect.

After watching (learning outcomes)… Use particle systems to create a starfield.

26 Explosion Particle Effect

In this video (objectives)…

1. Use texture sheet animation to create some variation in our particles.
2. Create a cool explosion effect.
3. Trigger our particle effect from code when the enemy dies.

After watching (learning outcomes)… Create an explosion effect which we trigger when enemies are killed.

27 Trigger Sound Effects

In this video (objectives)…

1. Audit our game to see where we need sound effects.
2. Use PlayClipAtPoint() to trigger sound effects.

After watching (learning outcomes)… Trigger sound effects for the key moments in our game.

28 Load All The Scenes

In this video (objectives)…

1. Create all the scenes for our game including their UI and buttons.
2. Create the public methods required to load our various scenes.

After watching (learning outcomes)… Create all our scenes, buttons and loading methods.

29 Delay For Loading Scene

In this video (objectives)…

1. Add enemy collision damage so we can bonk into enemies and inflict grievous harm on ourselves.
2. Implement a coroutine as part of player death so that we can delay the loading of the game over scene.

After watching (learning outcomes)…

Delay loading our game over scene by using a coroutine.

30 Music Player With Singleton

In this video (objectives)…

1. Select some rad music for our game.
2. Create a music player game object and script.
3. Implement a singleton pattern so that we have just 1 music player.

After watching (learning outcomes)…

Add music to our game which behaves itself when loading new scenes.

31 Add & Display Score

In this video (objectives)…

1. Create GameSession.cs to handle our score value and updates.
2. Create public methods for other scripts to call to influence score.
3. Display score on Game screen and Game Over screen.

After watching (learning outcomes)…

Display the player's score on the game screen and game over screen.

32 Display Player Health

In this video (objectives)…

1. Create DisplayHealth.cs and follow a similar path to displaying our score.

After watching (learning outcomes)…

Display the player's health on the screen and reset it after dying.

33 New Enemy & Projectile

In this video (objectives)…

1. Go through the full process of adding a new enemy, projectile type and wave path, tuning and tweaking as we go.

After watching (learning outcomes)…

Add a new enemy, projectile and path.

34 Sorting Layer & Spinning Projectile

In this video (objectives)…

1. Using sorting layers to eliminate the problem where projectiles appear on top of the player and enemy.
2. Create Spinner.cs to spin our enemy bombs as they zing through the air.

After watching (learning outcomes)…

Improve the visual look of our projectiles.

35 Laser Defender Wrap-Up

In this video (objectives)…

1. We do some wrapping up so that the wrap up gets wrapped up.

After watching (learning outcomes)…

You'll be ready and raring for the next section of the course.