WEEK3 |UNITY 2D | Timer part.2

Timer

Timer | Fields | Bool

Timer | Properties | set

Timer | Methods | Update() | Run()

Timer Test | Start() | gameObject.Addcomponent() | Time.time

Timer | AddComponent<>() | Result

WEEK3 |UNITY 2D | if and switch statement

if statement

switch statement

switch (variable)

{

case (value of the variable) :

—body—

break;

.

.

default : (=> else)

—body—

break;

}

WEEK3 |UNITY 2D | Selection, Timer Part.1

Boolean Expression

• Data Type – “bool”
• evaluates “True” or “False“
• helps us with Selection Control Structure
  • lets us make decisions about which code to execute
    • Example 1) Movement Direction based on user input
    • Example 2) Whether or not an enemy drops loot
    • Example 3) Whether or not a player has leveled up
    • Example 4)
• Logical Operators
  • And : “&&“
  • Or : “| |”
  • Not : “!”
• Relational Operators
  • ==
  • !=
  • <
  • <=
  • >
  • >=

Jumper.cs

Timer Logic

WEEK3 |Unity 2D Physics | Prefabs, Collider

Prefab

• a prefabricated gameObject
• a gameObject we have configured the way we want, then saved as a prefab
• easily adding instances of the prefab to a scene in the editor
• easily adding instances of the prefab to a scene from a script(spawning)

Prefabs | Sprite

Prefabs | Sprite change

 

Component added to Prefab

 

Component applied to GameObject from Prefab

Component applied to GameObject from Prefab

RigidBody2D | GetComponent() | Rigid

Script attached to a GameObject

Script working in a GameObject

Inspector | Prefab Apply

Prefab change Applied

 

Collision Detection

• Detecting collisions between gameObject
• if both game objects have 2D collider, the Physics 2D engine automatically does collision detection

Edge Collider

Box Collider

Physics Material

Physics applied to Collider

Collision Resolution

• Doing something based on the fact that a collision has been detected
• 2D Physics materials for the game object colliders determine how the Physics 2D engine resolves the collision(Friction/Bounciness)
• Additional collision resolution by ourselves is possible

OnCollisonEnter2D

OnCollisionEnter2D

 

WEEK3 |Unity 2D Physics | Moving GameObject

GameObject | Unity Component | RigidBody2D

Physics 2D | Gravity

Project Settings | Physics 2D

Physics2D

Physics2D Setting | Gravity

RigdBody2D | GetComponent | RigidBody2D.AddForce

GetComponent

• we can get other components that are attached to the same Game Object this script is attached to by calling “GetComponent” and we put that component into a variable

RigidBody2D.AddForce

• public void AddForce(Vector2 force, ForceMode2D mode = ForceMode2D.Force);
• ForceMode2D
  • ForceMode2D.Force – Add a force to the Rigidbody2D, using its mass.
  • ForceMode2D.Impulse – Add an instant force impulse to the rigidbody2D, using its mass.

Script Attached

GameObject Moving