PlayerController V4-Score
PlayerController V4 - GameData Score, Health
This version of PlayerController includes code in OnTriggerEnter2D using GameData, so that Score and Health values are modified when a collision occurs with a Hazard or Collectible
Includes Animator Component Logic
Includes Jump Functionality: GroundCheck, etc
Reminder: PickUp objects must have Tags:
PickUp items must have Tags set to match logic in PlayerController.cs: Collectible, Hazard
Requires GameData.cs on the GameManager GameObject
This version of the code includes GameData Add( ) so Score, Health are modified
PlayerController.cs V4 Code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerController : MonoBehaviour
{
public enum HeroState { idle, walk, jump } //create custom data-type - have integer values
public HeroState currentHeroState; //will display the current enum
private Animator animator; //- null - reference variable to access animator component
public bool facingRight; //keep track of sprite direction - used in Flip
private Rigidbody2D myRBody2D;
public float forceX; //used for adjusting velocity
public Transform groundCheck; //transform component on GroundCheck object
public LayerMask groundLayer; //allows us to interact with a physics Layer
public float groundCheckRadius ; //
public float jumpForce;
public bool grounded = false; //will let us see if the gameOjb is grounded
// Start is called before the first frame update
void Start()
{
currentHeroState = HeroState.idle; //initialize to show it's in idle to start
animator = GetComponent<Animator>();//is on the same game object as this script
animator.SetInteger("HeroState", (int)HeroState.idle); //send in the signal: 0
facingRight = true;
myRBody2D = GetComponent<Rigidbody2D>();
forceX = 100.0f; //force value may need adjusted
groundCheckRadius = 0.2f; //may need modified
jumpForce = 10f; //may need modified
}
// Update is called once per frame
void FixedUpdate() //physics methods executed - want consistant time between frames
{
float inputX = Input.GetAxis("Horizontal"); //values of -1, 0 , 1
bool isWalking = Mathf.Abs(inputX) > 0;
if (isWalking)
{
//check for flipping
if( inputX > 0 && !facingRight) //moving right, facing left
{
Flip(); //flip right
}else if( inputX <0 && facingRight) //moving left, facing right
{
Flip(); //flip left
}
currentHeroState = HeroState.walk;
animator.SetInteger("HeroState", (int)HeroState.walk);
myRBody2D.velocity = new Vector2( 0, myRBody2D.velocity.y); //reset the velocity to 0 //may come back and change
myRBody2D.AddForce(new Vector2(inputX * forceX, 0)); //add horizontal force to move the player
}
else
{
currentHeroState = HeroState.idle;
animator.SetInteger("HeroState", (int)HeroState.idle);
}
//check for spacebar or w, up keys to indicate vertical jump
bool jumpPressed = Input.GetButtonDown("Jump") || Input.GetAxis("Vertical") > 0;
grounded = Physics2D.OverlapCircle(groundCheck.position, groundCheckRadius, groundLayer);
if (jumpPressed && grounded)
{
currentHeroState = HeroState.jump;
animator.SetInteger("HeroState", (int)HeroState.jump);
Debug.Log("Jumping");
///Vertical Force for Movement
myRBody2D.velocity = new Vector2(myRBody2D.velocity.x, 0); //reset the y velocity to 0 //keep horizontal movement
myRBody2D.AddForce(new Vector2(0,jumpForce),ForceMode2D.Impulse); //add horizontal force to move the player
}
}//end FixedUpdate
//we have determined it is facing the wrong direction, it must need flipped for this to be executed
private void Flip()
{
facingRight = !facingRight; //toggle direction variable
//get Scale Vector
Vector3 theScale = transform.localScale; //get the current values for Scale Vector
theScale.x *= -1; //modify the X component //mirror the sprite
transform.localScale = theScale; //set the actual Scale vector with our temp Vector
}
/// <summary>
/// This is the start of the Event-Chain for Game Score, health to be changed
/// </summary>
/// <param name="collision">Collision.</param>
private void OnTriggerEnter2D(Collider2D collision)
{
Debug.Log("Collided with something");
//check tag on gameObject that has this collider on it
if (collision.CompareTag("Collectible"))
{
//get the PickUp component from the gameObject with this collider on it
PickUp item = collision.GetComponent<PickUp>();
Debug.Log("collided with a collectible of value: " + item.Value);
GameData.instanceRef.Add(item.Value);
Destroy(collision.gameObject); //destroy GameObject of the object we collided with
}
else if (collision.CompareTag("Hazard"))
{
PickUp item = collision.GetComponent<PickUp>();
Debug.Log("collided with a hazard of value: " + item.Value);
//update gameData database
GameData.instanceRef.TakeDamage(item.Value);
Destroy(collision.gameObject); //destroy GameObject of the object we collided with
}
}
}///end of ClassLast updated
