UNITY | PROJECT | 2D PlatFormer | 2. Camera & Death

“CameraSystem” Script

• Create Variables for Player, and Camera’s Scope
• in Start() method,
  • find player by using FindGameObjectwithTag()

 

“Main Camera”

“CameraSystem” Script

• in LateUpdate() method,
  • create x & y variable for the position of Main Camera
    • Put the x & y values of Player in those x & y
    • Clamp the x & y with min & max values
      • Main Camera will move based on Player‘s Position
      • when Main Camera reaches at the position of Min or Max Values, Main Camera stops there

Main Camera following but clamped

 

Adding Box with Box Collider

 

Adding Ground2 with Box Collider

“Box”

 

Creating “Hole” with “Box Collider”

Creating and Adding “PlayerHealth” Script

 

“PlayerHealth” Script

• Create died bool variable as Flag
• in Start() method,
  • Set the Flag as false
• in Update() method,
  •  if Player‘s y position is below than -7,(Player falls down), show the log

 

Player Falling

PlayerHealth Script

• Create a Coroutine
  • Create Die() as IEnumerator
  • Start the Coroutine with Die() by putting StartCoroutine() in Update() when Player died
  • don’t forget to put yield and return in IEnumerator

CoRoutine Working

“PlayerHealth” Script

• change IEnumerator Die()
  • load the main scene when this IEnumerator is called by using SceneManager.LoadScene()
  • Don’t forget to yield return null

Scene Loaded well

UNITY | PROJECT | SPACE SHOOTER 2D | 2. Player Input Movement

SPACE SHOOTER 2D

2. Player Input Movement

Player Control Script

• Creating & Adding “PlayerControl” script

Player Control Script | Update() | Input.GetAxisRaw()

• setting “speed” variable as public to see in the inspector
• In “Update()”
  • set horizontal & vertical input by using Input.GetAxisRaw()
    • with Input.GetAxisRaw(), the values will be -1, 0 or 1
  • with the two inputs, make “direction”
    • by adding “.normalize”, make a unit vector
  • add a customized fuction “Move()” to move “Player”
    • we need this fuction in “Update()” because “Player”‘s position must be changed and detected every frame

 

Player Control script | Move() | Vector2 | Camera.main.ViewportToWorldPoint()

• to limit the Filed where “Player” can move, get the screen size by using “Camera.main.ViewportToWorldPoint()”
  • ViewPort has a range (0, 0) to (1, 1)

 

Player Control script | Move() | transform.position | Mathf.Clamp()

• get the Player’s current position with “transform.position”
  • transform.position of the gameObject this script is attached to
• calculate the new position in “currentPosition” variable
  • with “speed” variable, we can change the speed of “Player”
    • “direction” is the normalized vector2
    • “Time.deltaTime” is very important with this, we smooth the movement

without “Time.deltaTime”, the value(“direction”) is almost (0, 0), (1, 0)……

 

Setting Player’s Speed | Public Variable

 

Player Input Movement

Player Input Movement | without Time.deltatime

• without “Time.deltaTime”, “Player” moves too dynamically