UNITY | PROJECT | 2D PlatFormer | 1. Project Set Up

Importing Sprites

 

Cutting Sprites

 

Creating “Ground”

• Add “Box Collider” to “Ground”

 

Adding “Player”

• Add “Box Collider” to “Player”
• Add “RigidBody2D” to “Player”

Adding “PlayerControl” Script

Physics Working

 

“PlayerControl” Script

• Claim variable for Player movement
  • playerSpeed
  • facingRight as flag
  • playerJumpPower
  • movementX
• in “Update()” method
  • get input to move horizontally by using “Input.GetAxis()”
  • get “RigidBody2D” component by using “GetComponent()”
    • call “velocity” propery to move “Player” with continuous input
  • create “if Statement” for Player’s movment
    • when pressing left and facing right
      • activate “FlipPlayer()” method
    • when pressing right and facing left
      • activate “FlipPlayer()” method
  • Create a Function, “FlipPlayer()”,
    • set the flag, “facingRight” to opposite
    • get the “localScale” property
      • multiply -1 to reverse the direction
    • Don’t forget to update “localScale”

Player Moving

“PlayerControl” Script

• Create a function, “Jump()’,
  • use “AddForce()” to give force upwards to “Player”
• in “PlayerMove()” method,
  • when “Jump” button is pressed, activate “Jump()” method

 

Input Manager

 

Player Jumping too high

 

RigidBody2D | Linear Drag | Gravity Scale

• Set “Linear Drag” 0 to 1 to prevent “Player” from jumping too much
• Set “Gravity Scale” 0 to 10 to prevent “Player” from jumping too much

 

Player Jumping

• Player jumps normally but still it can jump multiple times in the air

UNITY | PROJECT | SPACE SHOOTER 2D | 6. Explosion​ Animation

Explosion Sprite | Sprite Editor

 

Explosion Sprite | Sprite Editor | Slice

 

Explosion Sprite | Inspector

• For the Sprite of Explosion in the Inspector
  • Set the Sprite Mode into “Multiple”
  • Set the Filter Mode into “Point(no filter)”
  • Set the Max Sie into “1024”

Creating Animation from Sprite

 

“ExplosionAnimationContoller”

“Explosion” GameObject

 

Deselect “Loop Time”

 

“Explosion” Animation

• “Explosion” Animation is appearing continuously

 

 

“Explosion” Animation

 

• “Explosion” Animation works well except that the last frame of the animation lasts in the scene

 

Creating & Adding “Destroyer” Script

 

“Destroyer” Script

“Animation” Tap

Adding an Animation Event to “Explosion” Animation

 

Adding an Animation Event to “Explosion” Animation

“Explosion” Animation

Creating “Explosion” Prefab

UNITY | PROJECT | SPACE SHOOTER 2D | 3. Player Bullet and Player Shooting

SPACE SHOOTER 2D

3. Player Bullet and Player Shooting

Bullet Sprites

• Importing “Bullets” sprite

 

Sprite Editor | Slice

 

• by using “Sprite Editor”, slice “Bullets” sprites into 2 sprites
  • when slicing, set the type into “Grid By Cell Size”
  • when slicing, set the Pixel Size as 24×24

 

• Having 2 bullet sprites

 

Sprite Setting

• for the bullet sprite in the inspector
  • deselect “Generate Physics Shape”
  • Filter Mode into “Point(no filter)”
  • Max Size into “1024”

 

Adding prefab in the scene

• Add “Player Bullet” sprite in the scene to configure like adding a script

 

Adding a script to Bullet GameObject

• Adding “PlayerBullet” script to “PlayerBullet” GameObject

 

“PlayerBullet” Script

• set the public variable “speed” for the speed of the bullet
• In “Update()” method
  • get the bullet’s current position by using “transform.position”
  • computing the bullet’s new position = the change of position when we shoot the bullet
    • only need to change the “y” value
  • to smooth the shooting, use “Time.deltaTime”
  • Don’t forget to update the position into “transform.position”
• for the memory usage, destroy the bullets going outside the screen
  • when setting the screen range, only consider “y” value or “height”
  • “Camera.main.ViewPortToWorlPoint()”

 

Setting the speed in the inspector | Public Variable

Shoot a bullet

 

Making a Prefab

• Make the Bullet Prefab by dragging the bullet we configured in the Hierarchy window
  • this is the Bullet we will continuously instantiate

 

Empty GameObject

 

GameObject BulletPosition

GameObject BulletPosition

• Make 2 Empty GameObject to Create “BulletPosition”, where Bullets come out
  • Set the position of  “BulletPosition” on “Player” GameObject

 

Child Object

• Make “BulletPosition” as a ChildObject of “Player”
  • “BulletPosition” belongs to “Player”

 

“Player Control

• Set Public Variables to use those components in the script

 

Public Variable | Reference

 

Player Control

• In “Update()” method
  • Instantiate Bullet Prefab when “SpcaeBar” is pressed
  • set the initial position of a bullet after instantiating

 

Player Shooting | Destroying Bullets

 

UNITY | PROJECT | SPACE SHOOTER 2D | 1. CREATING PROJECT & PLAYER ANIMATION

SPACE SHOOTER 2D

1. CREATING PROJECT & PLAYER ANIMATION

Creating Project & Folders

• creating the Project
• creating Folders for each component
  • Scenes
  • Scripts
  • Prefabs
  • Sprites
  • Sound
  • Animations

Camera & BackGround

• Changing BackGround Color
• Changing Camera Size

 

Player Sprite | Sprite Editor

• Adding “Player” Sprite to “Sprites” folder
• Changing “Texture Type” to “Sprite(2D and UI)”
• “Sprite Editor”

 

Sprite Editor

• In “Sprite Editor”
  • changing Type to “Grid By Cell Type”
  • Pixel Size into X:72 / Y : 72
  • Press “Slice”

 

Sliced Sprite | Sprite Setting

• “SpaceShip.png” has been sliced into 12 pieces
• in the Inspector
  • deselect “Generate Mip Maps”
  • change “Filter mode” into “Point(no filter)”
  • change “Max Size” into 1024

 

Selecting multiple Sprites to create “Player” object

• Trying to create “Player” object with animation by selecting multiple Sprites

 

Creating “Player” object with multiple Sprites

• Saving “PlayerAnimation” in “Animation” folder

“Player” object with Animation

• an “AnimationController” has been created automatically for “PlayerAnimation”

 

“PlayerAnimation”

Changing “Player” to “PlayerGo”

 

“PlayerGo” with animation