[part 5] player not taking damage

[C Vagdalt]

i am almost done with part 5 of the series and my player is supposed to take damage whne getting hit by the enemy but nothing happens.

this is my playerstats script:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerStats : MonoBehaviour
{
    
    public CharacterScriptableObject characterData;

    //current stats
    float currentHealth;
    float currentRecovery;
    float currentMoveSpeed;
    float currentMight;
    float currentProjectileSpeed;


    //experience and level of the player
    [Header("Experience/Level")]
    public int experience = 0;
    public int level = 1;
    public int experienceCap;

    //class for defining a level range and the corresponding experience ca increase for that range
    [System.Serializable]
    public class LevelRange
    {
        public int startLevel;
        public int endLevel;
        public int experienceCapIncrease;

    }


    //I-frames
    [Header("I-Frames")]
    public float invincibilityDuration;
    float invincibilityTimer;
    bool isInvincible;
    

    public List<LevelRange> levelRanges;
    private float currentDamage;

    void Start()
    {
        // initialize the experience cap as the first experience cap increase
        experienceCap = levelRanges[0].experienceCapIncrease;
    }

    void Update()
    {
        if(invincibilityTimer > 0)
        {
            invincibilityTimer -= Time.deltaTime;
        }
        else if(isInvincible)
        {
            isInvincible = false;
        }
    }

    public void IncreaseExperience(int amount)
    {
        experience += amount;

        LevelUpChecker();
    }

    void LevelUpChecker()
    {
        if(experience >= experienceCap)
        {
            level++;
            experience -= experienceCap;

            int experienceCapIncrease = 0;
            foreach (LevelRange range in levelRanges)       
            { 
                if(level >= range.startLevel && level <= range.endLevel)
                {
                    experienceCapIncrease = range.experienceCapIncrease;
                    break;
                }
            }
            experienceCap += experienceCapIncrease;
        }

    }  

    public void TakeDamage(float dmg)
    {
        if (!isInvincible)
        {
            currentHealth -= dmg;

            invincibilityTimer = invincibilityDuration;
            isInvincible = true;

            if (currentHealth <= 0)
            {
                Kill();
            }
        }
        
    }

    public void Kill()
    {
        Debug.Log("Player is dead");
    }

    private void OnCollisionStay2D(Collision2D col)
    {
        if (col.gameObject.CompareTag("Player"))
        {
            PlayerStats player = col.gameObject.GetComponent<PlayerStats>();
            player.TakeDamage(currentDamage);
        }
    }
}

[Terence]

Vagdalt, this function shouldn’t be in PlayerStats. It should be in EnemyStats.

private void OnCollisionStay2D(Collision2D col)
{
    if (col.gameObject.CompareTag("Player"))
    {
        PlayerStats player = col.gameObject.GetComponent();
        player.TakeDamage(currentDamage);
    }
}

[C Vagdalt]

i put it in enemystats but it still doesnt work.

ill also post enemystats here s you can see if everything is alright there, the scripts doesnt show any errors

ENEMYSTATS:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class EnemyStats : MonoBehaviour
{
    public EnemyScriptableObject enemyData;

    //Current stats
    float currentMoveSpeed;
    float currentHealth;
    float currentDamage;

    public void Awake()
    {
        //Assign the vaiables
        currentMoveSpeed = enemyData.MoveSpeed;
        currentHealth = enemyData.MaxHealth;
        currentDamage = enemyData.Damage;
    }

    public void TakeDamage(float dmg)
    {
        currentHealth -= dmg;

        if (currentHealth <= 0)
        {
            Kill();
        }
    }

    public void Kill()
    {
        Destroy(gameObject);
    }

    private void OnCollisionStay2D(Collision2D col)
    {
        if (col.gameObject.CompareTag("Player"))
        {
            PlayerStats player = col.gameObject.GetComponent<PlayerStats>();
            player.TakeDamage(currentDamage);
        }
    }
}

PLAYERSTATS:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerStats : MonoBehaviour
{
    
    public CharacterScriptableObject characterData;

    //current stats
    float currentHealth;
    float currentRecovery;
    float currentMoveSpeed;
    float currentMight;
    float currentProjectileSpeed;


    //experience and level of the player
    [Header("Experience/Level")]
    public int experience = 0;
    public int level = 1;
    public int experienceCap;

    //class for defining a level range and the corresponding experience ca increase for that range
    [System.Serializable]
    public class LevelRange
    {
        public int startLevel;
        public int endLevel;
        public int experienceCapIncrease;
    }


    //I-frames
    [Header("I-Frames")]
    public float invincibilityDuration;
    float invincibilityTimer;
    bool isInvincible;
    

    public List<LevelRange> levelRanges;
    

    void Awake()
    {
        currentHealth = characterData.Maxhealth;
        currentRecovery = characterData.Recovery;
        currentMoveSpeed = characterData.MoveSpeed;
        currentMight = characterData.Might;
        currentProjectileSpeed = characterData.ProjectileSpeed;
    }


    void Start()
    {
        // initialize the experience cap as the first experience cap increase
        experienceCap = levelRanges[0].experienceCapIncrease;
    }

    void Update()
    {
        if(invincibilityTimer > 0)
        {
            invincibilityTimer -= Time.deltaTime;
        }
        else if(isInvincible)
        {
            isInvincible = false;
        }
    }

    public void IncreaseExperience(int amount)
    {
        experience += amount;

        LevelUpChecker();
    }

    void LevelUpChecker()
    {
        if(experience >= experienceCap)
        {
            level++;
            experience -= experienceCap;

            int experienceCapIncrease = 0;
            foreach (LevelRange range in levelRanges)       
            { 
                if(level >= range.startLevel && level <= range.endLevel)
                {
                    experienceCapIncrease = range.experienceCapIncrease;
                    break;
                }
            }
            experienceCap += experienceCapIncrease;
        }

    }  

    public void TakeDamage(float dmg)
    {
        if (!isInvincible)
        {
            currentHealth -= dmg;

            invincibilityTimer = invincibilityDuration;
            isInvincible = true;

            if (currentHealth <= 0)
            {
                Kill();
            }
        }
        
    }

    public void Kill()
    {
        Debug.Log("Player is dead");
    }

   
}

[Terence]

Is your player GameObject tagged as “Player”?

[C Vagdalt]

yes

[Terence]

Can you add the following lines to your code and show me the Console when the player is touched by the enemy?

private void OnCollisionStay2D(Collision2D col)
{
    print("Collision with enemy detected");
    if (col.gameObject.CompareTag("Player"))
    {
        print("Collision is with player");
        PlayerStats player = col.gameObject.GetComponent();
        player.TakeDamage(currentDamage);
    }
}

[C Vagdalt]

looks like it doesnt detect any collision

View post on imgur.com

code looks liket his right now:

private void OnCollisionStay2D(Collision2D col)
{
    print("Collision with enemy detected");
    if (col.gameObject.CompareTag("Player"))
    {
        print("Collision is with player");
        PlayerStats player = col.gameObject.GetComponent<PlayerStats>();
        player.TakeDamage(currentDamage);
    }
}

[Terence]

Can you click on the error to expand it? Show me the line that the error is flagging as well (bold it).

[C Vagdalt]

it isnt showing the error anymore now that i started it up again, the problem with the player not taking damage is stil there

[Terence]

Do you have a Rigidbody2D on the player or enemy? You need at least one Rigidbody2D between them for OnCollisionStay2D() to register.

[C Vagdalt]

yes on both

[C Vagdalt]

the error is back

also saw some new ones. I made a screenie of the code in question too

View post on imgur.com

[Terence]

The error at line 22 is because your weaponData variable is null. You need to check if your weapon behaviour prefab has a weapon data object assigned.

[Author]

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