Important: This code is to be used with the Simplified MiniGame. In LevelManager, the script component of type: PlayerController is used, you must make a change to LevelManager, so it uses PlayerController_v2, or change the name of this file, and class to PlayerController.cs
Includes Updates for: InventorySystem, LevelManager.
OnTriggerEnter2D contains code to test for collisions with GameObjects with Collider2D set as 'Trigger' based on several different gameObject tags Tags used in PlayerController :
Collectible
Requires either PickUp.cs or ScorePickUp.cs
PickUp.cs requires ItemInstance - ScriptableObject - adds value to Score, adds ItemInstance to Inventory
ScorePickUp.cs - adds value to score
Hazard
Requires either PickUp.cs or Hazard.cs
Water
Invokes: onPlayerDied
Exit
Invokes: onReachedExit
Audio clips played if colliding with Pickup with correct audioSource. ( Collectible, Water )
Audio Clips:
Contains custom Events, LevelManager is the subscriber object:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
/// Player controller v2.
/// Code provided
/// Sp.2019
public class PlayerController_v2 : MonoBehaviour
{
public UnityEvent onPlayerReachExit = new UnityEvent();
public UnityEvent onPlayerDied = new UnityEvent();
public Transform spawnPoint; //player respawn position for each new level
private Rigidbody2D rb2D; //declare the variable
public float forceX = 50f; //this is probably too small
private bool facingRight;
public bool grounded; //tracks if player is touching ground
private bool jump; //has jump key (spacebar been pressed - last)
public Transform groundCheck; //set in inspector, (add child to player - empty gameObject at player's feet)
public LayerMask groundLayer; //set in inspector
public float groundCheckRadius = 0.2f; //modify as needed
public float jumpForce = 8f; //modify as needed
// Use this for initialization
void Start()
{
gameObject.transform.localPosition = spawnPoint.localPosition;
rb2D = GetComponent<Rigidbody2D>(); ///we made the connection with the component
facingRight = true;
}
//Fixed Update is called at regular time intervals - use with Physics2D
void FixedUpdate()
{
float inputX = Input.GetAxis("Horizontal"); //-1, 0, 1
bool isWalking = Mathf.Abs(inputX) > 0;
grounded = Physics2D.OverlapCircle(groundCheck.position, groundCheckRadius, groundLayer);
bool jumpPressed = Input.GetButtonDown("Jump"); //spacebar was last key pressed
if (jumpPressed)
{
jump = true;
}
else
{
jump = false;
}
if (isWalking)
{
if (inputX > 0 && !facingRight)
{
Flip();
}
else if (inputX < 0 && facingRight)
{
Flip();
}
rb2D.velocity = new Vector2(0, rb2D.velocity.y);
rb2D.AddForce(new Vector2(inputX * forceX, 0));
} //end if isWalking
if (jump && grounded)
{
rb2D.velocity = new Vector2(rb2D.velocity.x, 0); //zero out velocity.y, maintain velocity.x
rb2D.AddForce(new Vector2(0f, jumpForce), ForceMode2D.Impulse); //add force as impulse
}
}
/// <summary>
/// THIS IS THE EVENT that starts the chain reaction of events
/// </summary>
/// <param name="collision">Collision.</param>
//Customize to your game needs
private void OnTriggerEnter2D(Collider2D collision)
{
if (collision.CompareTag("Collectible"))
{
//update score
PickUp item = collision.GetComponent<PickUp>();
if (item != null)
{
GameData.instanceRef.Add(item.Value); //points for each specific item's value
//add to inventory
GameData.instanceRef.AddItem(item.itemInstance); //points for each specific item's value
}
else //is it a scoreItem
{
ScorePickUp scoreItem = collision.GetComponent<ScorePickUp>();
if (scoreItem != null)
{
GameData.instanceRef.Add(item.Value); //points for each specific item's value
}
}
AudioSource collectSound = collision.gameObject.GetComponent<AudioSource>();
if (collectSound != null)
{
AudioClip clip = collectSound.clip;
//plays a clip at a point in worldspace, destroyed when done
AudioSource.PlayClipAtPoint(clip, new Vector3(5, 1, 2));
}
Destroy(collision.gameObject);
}
else if (collision.CompareTag("Hazard"))
{
//decrease health
Hazard hItem = collision.GetComponent<Hazard>();
if (hItem != null)
{
GameData.instanceRef.TakeDamage(hItem.Value);
}
else //PickUp with Hazard, not added to Inventory here
{
PickUp item = collision.GetComponent<PickUp>();
if (item != null)
{
GameData.instanceRef.TakeDamage(item.Value);
}
Debug.Log("Hit Hazard: value is " + item.Value);
}
Destroy(collision.gameObject);
}
else if (collision.CompareTag("Water"))
{
Debug.Log("Hit Water");
AudioSource diedSound = collision.gameObject.GetComponent<AudioSource>();
if (diedSound != null)
{
AudioClip clip = diedSound.clip;
//plays a clip at a point in worldspace, destroyed when done
AudioSource.PlayClipAtPoint(clip, new Vector3(5, 1, 2));
}
if (onPlayerDied != null) //there are listeners
{
onPlayerDied.Invoke();
}
}
else if (collision.CompareTag("Exit"))
{
Debug.Log("Hit Exit");
onPlayerReachExit.Invoke();
}
else
{
Debug.Log("Hit Something Else");
}
} //end function
private void Flip()
{
facingRight = !facingRight; //toggle this value
Vector3 theScale = transform.localScale;
theScale.x *= -1; //we have changed the value
transform.localScale = theScale;
}
} //end Class
