# Unity | Build Your First 3D Game in Unity

https://www.youtube.com/watch?v=Ekfio0gfn-Y

- [SerializeField]
- (datatype) Transform
- Physics.CheckSphere
- Create new layer
- (datatype) LayerMask
- Get rid of friction
- declare a variable array: GameObject[]
- speed * Time.deltaTime 
- void OnCollisionEnter(Collision collision)
- GetComponent<Rigidbody>()
- UnityEngine.SceneManagement

Add coin & collect it
- Just type in component name to get its property, like "transform.position.y"
- set isTrigger checkbox to true under Collider component so that coin won't block player's movement
- Remember to make coin as prefab


Add UI to display coin count
- Canvas Scaler
- Connect text to script
    - using UnityEngine.UI;

Add sound&music
- assetstore.unity.com
- Import from Package Manager
- put audio file to audio source, put audio source to a variable (SerializeField) in playerMover script, play that variable in the script

Add another level
- SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex + 1);

Add start screen
- Canvas: Canvas Scaler: Scale with Screen Size
- Match with height
- Shift + Space to expand runtime window to fullscreen




Next:
https://www.youtube.com/watch?v=dokuFmmbyaQ