75 lines
2.7 KiB
C#
75 lines
2.7 KiB
C#
using Movement;
|
|
using Pausable;
|
|
using UnityEngine;
|
|
|
|
namespace AI
|
|
{
|
|
public class BasicPatrollingEnemyAI : MonoBehaviour, IPausable
|
|
{
|
|
[SerializeField] protected bool isMovingRightInitially = false;
|
|
protected bool isMovingRight = false;
|
|
|
|
protected IMovement movement = null;
|
|
protected SpriteRenderer spriteRenderer = null;
|
|
protected Animator animator = null;
|
|
|
|
protected CollisionChecker leftWallChecker = null;
|
|
protected CollisionChecker rightWallChecker = null;
|
|
protected CollisionChecker leftGroundChecker = null;
|
|
protected CollisionChecker rightGroundChecker = null;
|
|
|
|
#region IPausable
|
|
public bool IsPaused { get; protected set; } = false;
|
|
public virtual void Pause()
|
|
{
|
|
IsPaused = true;
|
|
animator.enabled = !IsPaused;
|
|
}
|
|
public virtual void Resume()
|
|
{
|
|
IsPaused = false;
|
|
animator.enabled = !IsPaused;
|
|
}
|
|
#endregion
|
|
|
|
|
|
// If moving Right, and either there's no more ground to move into or there is a wall at the Right side of the enemy OR
|
|
// If moving Left, and either there's no more ground to move into or there is a wall at the Left side of the enemy
|
|
// We should change directions
|
|
protected bool ShouldChangeDirection
|
|
=> (isMovingRight && (rightWallChecker.IsCollided || !rightGroundChecker.IsCollided)) ||
|
|
(!isMovingRight && (leftWallChecker.IsCollided || !leftGroundChecker.IsCollided));
|
|
|
|
protected virtual void Awake()
|
|
{
|
|
movement = gameObject.AddComponent<EnemyMovement>();
|
|
spriteRenderer = gameObject.GetComponent<SpriteRenderer>();
|
|
animator = gameObject.GetComponent<Animator>();
|
|
|
|
leftWallChecker = GetCollisionCheckerOnChild("Collision Checkers/Left Wall");
|
|
rightWallChecker = GetCollisionCheckerOnChild("Collision Checkers/Right Wall");
|
|
leftGroundChecker = GetCollisionCheckerOnChild("Collision Checkers/Left Ground");
|
|
rightGroundChecker = GetCollisionCheckerOnChild("Collision Checkers/Right Ground");
|
|
isMovingRight = isMovingRightInitially;
|
|
spriteRenderer.flipX = !isMovingRightInitially;
|
|
}
|
|
|
|
protected virtual void FixedUpdate()
|
|
{
|
|
if (IsPaused)
|
|
return;
|
|
|
|
if (ShouldChangeDirection)
|
|
{
|
|
isMovingRight = !isMovingRight;
|
|
spriteRenderer.flipX = !isMovingRight;
|
|
}
|
|
|
|
movement.Move(isMovingRight ? 2f : -2f);
|
|
}
|
|
|
|
protected CollisionChecker GetCollisionCheckerOnChild(string childName)
|
|
=> transform.Find(childName).GetComponent<CollisionChecker>();
|
|
}
|
|
}
|