All content in this course uses:

Lesson 5.1 - Clicky Mouse

It’s time for the final unit! We will start off by creating a new project and importing the starter files, then switching the game’s view to 2D. Next we will make a list of target objects for the player to click on: Three “good” objects and one “bad”. The targets will launch spinning into the air after spawning at a random position at the bottom of the map. Lastly, we will allow the player to destroy them with a click!

A list of three good target objects and one bad target object will spawn in a random position at the bottom of the screen, thrusting themselves into the air with random force and torque. These targets will be destroyed when the player clicks on them or they fall out of bounds.

Prototype 5 - Starter Files.zip

One last time… we need to create a new project and download the starter files to get things up and running.

” project in your course directory on the correct Unity version. 
If you forget how to do this, refer to the instructions in 

 the .unitypackage into your project. 
If you forget how to do this, refer to the instructions in 

(optional) Change the texture and color of the 

Create project and switch to 2D view

The first thing we need in our game are three good objects to collect, and one bad object to avoid. It’ll be up to you to decide what’s good and what’s bad.

, drag 3 “good” objects and 1 “bad” object into the Scene, rename them “

Create good and bad targets

Now that we have 4 target prefabs with the same script, we need to toss them into the air with a random force, torque, and position.

Toss objects randomly in the air

Instead of leaving the random force, torque, and position making our Start() function messy and unreadable, we’re going to store each of them in brand new clearly named custom methods.

Declare and initialize new private float variables for 

Replace messy code with new methods

The next thing we should do is create a list for these objects to spawn from. Instead of making a Spawn Manager for these spawn functions, we’re going to make a Game Manager that will also control game states later on.

 to the list of namespaces at the top of your script:


, then in the Game Manager inspector, change the list 

Make sure that you spell the GameObject as “Game Manager” with a space, but the script as “GameManager” with no space. You’ll need to reference that GameObject name later. 

Create object list in Game Manager

Now that we have a list of object prefabs, we should instantiate them in the game using coroutines and a new type of loop.

To fix the error under IEnumerator, add the following using directive to the top of your code:


Create a coroutine to spawn objects

Now that our targets are spawning and getting tossed into the air, we need a way for the player to destroy them with a click. We also need to destroy any targets that fall below the screen.

, and inside that method, destroy the gameObject

private void OnTriggerEnter(Collider other)

 and inside that function, destroy the gameObject

Destroy target with click and sensor

Random objects are tossed into the air on intervals

Objects are given random speed, position, and torque

If you click on an object, it is destroyed

We’ll add some effects and keep track of score!

Lesson Recap

Control the execution of code with common logic structures 

Level 1 Application Scripting

Joy Horvath

Instructional Designer

CWC_U5.L1.S1_U6.mp4

CWC_U5.L1.S2_U6.mp4

CWC_U5.L1.S3_U6.mp4

CWC_U5.L1.S5_U6.mp4

CWC_U5.L1.S4_U6.mp4

CWC_U5.L1.S6_U6.mp4

CWC_U5.L1.S7_U6.mp4

By the end of this lesson, you will be able to:

Switch the game to 2D view for a different perspective

Create a Game Manager object that controls game states as well as spawning

Create a List of objects and return their length with Count

Use While Loops to repeat code while something is true

Use OnMouseDown to enable the player to click on things

Implement simple logic in code by using if and if-else statements

Control the execution of code by using logical operators such as AND and OR in conditional statements

Control how many times certain lines of code run by using for loops, foreach loops, and while loops

Control the order and timing of executed code by using coroutines

Control the execution of code by using switch statements

Modify the values of numeric variables by using mathematical operators

Control the execution of code with common logic structures

Select the appropriate common Unity methods to use, e.g., Awake, Start, Update, FixedUpdate, Collision, and Trigger Events, given a desired feature to code

Achieve a desired result by using Unity API methods, given Unity’s script documentation

Achieve a desired result with different parameters by using various method overloads

Distinguish a correct use of any given Unity API method from an incorrect use

Control or trigger the state of components, such as an Animator Controller, Light, AudioSource, or User Interface element by using appropriate methods

Construct an input listener, given a scenario where a specific type of input is required

Print a message consisting of concatenated strings and variable values to the console by using Unity's Debug.Log method

Compose scripts that utilize various APIs

Initialize variables of a given data type, including ints, floats, doubles, bools, strings, arrays, lists, and dictionaries

Select the correct data type for a variable in a given situation

Select appropriate variable modifiers including public, private, static, protected, and const

Implement appropriate data types

Deduce the purpose and expected result of a given block of code

Accomplish a specific task by constructing a viable method declaration, given a list of keywords and syntax elements

Structure methods by using void and return

Demonstrate ability to implement a given feature in code by recommending data types and logic flow for a new method

Write code that integrates into an existing system

Reduce redundancy and improve code's readability by correctly naming variables and methods

Unity Version 6.0