koobas.hobune.stream
2D raycast shooting in the wrong direction
Hi, I am making a 2D topdown game. And I got stuck with raycasting. I want to shoot a racyast from an enemy to the position of the player. The problem is that the raycast is going in the wrong direction, but slightly follows the player's movement. I have been trying to find a solution, but with no luck. Thank you in advance if you know the solution! :)
Here is the code and the image: 
using System.Collections; using System.Collections.Generic; using UnityEngine;
public class EnemyRaycasting : MonoBehaviour {
public float raycastDistance = 100f;
public GameObject player;
public GameObject enemy;
private Vector2 playerPos;
private Vector2 enemyPos;
private Vector2 raycastDirection;
public LayerMask whomstHit;
[SerializeField]
private bool showRaycast;
void Start() {
}
void FixedUpdate() {
playerPos = new Vector2(player.transform.position.x, player.transform.position.y);
enemyPos = new Vector2(enemy.transform.position.x, enemy.transform.position.y);
Raycast(enemyPos, playerPos);
}
void Raycast(Vector2 origin, Vector2 direction)
{
RaycastHit2D hit = Physics2D.Raycast(origin, direction, raycastDistance, whomstHit);
if (hit.collider != null)
{
Debug.Log("Hit object " + hit.collider.name);
}
if (showRaycast == true)
{
Debug.DrawRay(origin, hit.point, Color.red);
}
}
}
The main idea of Raycasting is to specify the correct position of target ( in your case, it is your player, right? ) So for this line in FixedUpdate() playerPos = new Vector2(player.transform.position.x, player.transform.position.y); Write playerPos = new Vector2(player.transform.position.x-enemy.transform.position.x, player.transform.position.y-enemy.transform.position.y);
Notice how I subtracted the enemy's position from our player's position.
Thank you, coolbudy1998! Fixed the problem, will take note on this in the future.
