如何从玩家那里检测游戏对象是左侧还是右侧

Question

The Debug.Log always returns LEFT while it needs to be only right when it's on the right side of the player. Now it's showing both left and right (when on the right side of the game object).

if (distance <= 249)
        {
            if (enemy.transform.position.x > player.transform.position.x)
            {
                if (waitTime == 0)
                {
                    Debug.Log("LEFT");
                    FireGunsLeft();
                }
            }
            else 
            {
                if (waitTime == 0)
                {
                    Debug.Log("RIGHT");
                    FireGunsRight();
                }
            }

        }

Answer 1

Use player.transform.InverseTransformPoint(enemy.transform.position)

You can use Transform.InverseTransformPoint to find the enemy's relative position from the perspective of the player.

Vector3 enemyDirectionLocal = player.transform.InverseTransformPoint(enemy.transform.position);

This Vector3 enemyDirectionLocal is a vector that describes the enemy's position offset from the player's position along the player's left/right, up/down, and forward/back axes.

What this means is that if enemyDirectionLocal.x is less than zero, it's on the left side of the player (although maybe ahead or behind as well), and if it's greater than zero, it's on the right side. If it's zero, it's directly behind or ahead of the player.

Vector3 enemyDirectionLocal = player.transform.InverseTransformPoint(enemy.transform.position);

if (enemyDirectionLocal.x < 0)
{
    if (waitTime == 0)
    {
        Debug.Log("LEFT");
        FireGunsLeft();
    }
}
else if (enemyDirectionLocal.x > 0)
{
    if (waitTime == 0)
    {
        Debug.Log("RIGHT");
        FireGunsRight();
    }
}

Answer 2

Another approach would be to find the Vector between the player's position and the enemy's position var directionToEnemy = enemy.transform.position - player.transform.position and then find its projection on the right vector of the player's transform, having it > 0 when the enemy is on the right of the player:

var directionToEnemy = enemy.transform.position - player.transform.position;
var projectionOnRight = Vector3.Dot(directionToEnemy, player.transform.right);

if (projectionOnRight < 0)
{
    if (waitTime == 0)
    {
        Debug.Log("LEFT");
        FireGunsLeft();
    }
}
else if (projectionOnRight > 0)
{
    if (waitTime == 0)
    {
        Debug.Log("RIGHT");
        FireGunsRight();
    }
}

You also might consider doing the waitTime == 0 check before you do the calculations for the relative position.

if Mathf.Approximately(projectionOnRight, 0f) returns true, then the enemy is right in front of the player and you might want to perform FireGunsStraight() or whatever you have for this case.