private void Update()
{
/** https://youtu.be/LPNSh9mwT4w?t=1284 */
//code for setting attack animation
//animator.SetBool("attacking",true);
//check for ground in front of enemy
Vector2 lineCastPos = GetLineCastPosition();
Vector2 playerCastPos = GetPlayerCastPosition();
Vector2 groundCheckPos = GetGroundCheckPosition(lineCastPos);
Vector2 wallCheckPos = GetWallCheckPosition(lineCastPos);
bool isGrounded = Physics2D.Linecast(lineCastPos + toVec2(-transform.right) * 0.3f + Vector2.up * 0.2f, groundCheckPos + Vector2.up * 0.1f, enemyMask);
Debug.DrawLine(lineCastPos + toVec2(-transform.right) * 0.3f + Vector2.up * 0.2f, groundCheckPos + Vector2.up * 0.1f, isGrounded ? Color.red : Color.white);
bool iAmAboutToHurtMyFeetsies = Physics2D.Linecast(lineCastPos, groundCheckPos + Vector2.up * 0.1f + toVec2(-transform.right) * 0.1f, avoidWalkingOnMask);
Debug.DrawLine(lineCastPos, groundCheckPos + Vector2.up * 0.1f + toVec2(-transform.right) * 0.1f, iAmAboutToHurtMyFeetsies ? Color.red : Color.grey);
bool isBlocked = Physics2D.Linecast(lineCastPos, wallCheckPos, enemyMask) || iAmAboutToHurtMyFeetsies;
Debug.DrawLine(lineCastPos, wallCheckPos, isBlocked ? Color.red : Color.white);
attacking = Physics2D.Linecast(playerCastPos, playerCastPos + toVec2(-transform.right) * 0.1f, attackMask);
Debug.DrawLine(playerCastPos, playerCastPos + toVec2(-transform.right) * 0.1f, attacking ? Color.red : Color.blue);
// if (!isBlocked)
// {
// isBlocked = Physics2D.Linecast(playerCastPos, playerCastPos - toVec2(enemyTrans.right) / 8, enemyMask);
// }
//if attacking, lock him into an attack where he doesn't do anything else
if (remainingAttackTime <= 0)
{
remainingAttackTime = attackTime;
animator.SetBool("attacking", false);
}
else
{
remainingAttackTime -= Time.deltaTime;
}
//check to see if player is in front
if (attacking)
{
walking = false;
animator.SetBool("attacking", true);
}
else
{
walking = true;
animator.SetBool("attacking", false);
}
if (walking)
{
//if no ground ahead, turn around
if (!isGrounded || isBlocked)
{
//pause before changing direction
if (timer > 0)
{
animator.SetFloat("speed", 0); //play idle animation
timer -= Time.deltaTime;
return;
}
timer = rand.Next(1, maxTurnDelaySeconds);
//flip Y 180 degrees
Vector3 currentRotation = enemyTrans.eulerAngles;
currentRotation.y += 180;
enemyTrans.eulerAngles = currentRotation;
}
//move forwards
Vector2 enemyVelocity = m_rb.velocity;
enemyVelocity.x = enemyTrans.right.x * speed;
m_rb.velocity = enemyVelocity;
animator.SetFloat("speed", m_rb.velocity.x * m_rb.velocity.x); //play walking animation
}
//else attacking
else
{
player.AttemptTakeDamage(DamageDealt);
}
}
private void Update()
{
//todo: have to clean this whole f****r up.
Vector2 lineCastPos = GetLineCastPosition();
Vector2 playerCastPos = GetPlayerCastPosition();
Vector2 groundCheckPos = GetGroundCheckPosition(lineCastPos);
Vector2 wallCheckPos = GetWallCheckPosition(lineCastPos);
//todo: make these use the facing and also clean it the hell up. Build the debug draw into a method.
bool isGrounded = Physics2D.Linecast(lineCastPos + toVec2(transform.right * _facingDirection) * 0.3f + Vector2.up * 0.2f,
groundCheckPos + Vector2.up * 0.1f, _avoidWalkingIntoMask);
Debug.DrawLine(lineCastPos + toVec2(transform.right * _facingDirection) * 0.3f + Vector2.up * 0.2f,
groundCheckPos + Vector2.up * 0.1f, isGrounded ? Color.red : Color.white);
bool iAmAboutToHurtMyFeetsies = Physics2D.Linecast(lineCastPos,
groundCheckPos + Vector2.up * 0.1f + toVec2(transform.right * _facingDirection) * 0.1f, _avoidWalkingOnMask);
Debug.DrawLine(lineCastPos, groundCheckPos + Vector2.up * 0.1f + toVec2(transform.right * _facingDirection) * 0.1f,
iAmAboutToHurtMyFeetsies ? Color.red : Color.grey);
bool isBlocked = Physics2D.Linecast(lineCastPos + toVec2(transform.right * -0.1f * _facingDirection), wallCheckPos, _avoidWalkingIntoMask) ||
iAmAboutToHurtMyFeetsies;
Debug.DrawLine(lineCastPos + toVec2(transform.right * -0.1f * _facingDirection), wallCheckPos, isBlocked ? Color.red : Color.white);
bool attackableInRange =
Physics2D.Linecast(playerCastPos, playerCastPos + toVec2(transform.right * _facingDirection) * 0.25f, _hostileToMask);
Debug.DrawLine(playerCastPos, playerCastPos + toVec2(transform.right * _facingDirection) * 0.25f,
attackableInRange ? Color.red : Color.blue);
//Debug.Log(_currentState);
var dT = Time.deltaTime;
switch (_currentState)
{
case EnemyState.Idle:
{
RunEnemyTimers(_idleSprites, _idleDuration);
if (StateTimerExceeds(_idleDuration))
{
TurnAround();
ChangeStateTo(EnemyState.Patrolling);
}
else if (attackableInRange || PlayerDetected())
{
ChangeStateTo(EnemyState.Alerted);
_soundManager.PlayHurtSFX();
}
break;
}
case EnemyState.Patrolling:
{
RunEnemyTimers(_walkSprites, _walkCycleDuration);
_rb.velocity = new Vector2(_movementSpeed * _facingDirection, _rb.velocity.y);
if (attackableInRange || PlayerDetected())
{
ChangeStateTo(EnemyState.Alerted);
FacePlayer();
_soundManager.PlayHurtSFX();
}
bool decideToStop = StateTimerExceeds(_patrolDuration) ||
iAmAboutToHurtMyFeetsies ||
isBlocked || !isGrounded ||
Math.Abs(_rb.velocity.x) < 0.01f;
if (decideToStop)
{
ChangeStateTo(EnemyState.Idle);
}
break;
}
case EnemyState.Alerted:
{
RunEnemyTimers(_idleSprites, _alertDuration);
if (StateTimerExceeds(_alertDuration))
{
if (PlayerDetected() || attackableInRange)
{
if (isGrounded)
{
ChangeStateTo(EnemyState.Pursuing);
FacePlayer();
}
else
{
FacePlayer();
ChangeStateTo(EnemyState.Windup);
}
}
else if (iAmAboutToHurtMyFeetsies || isBlocked || !isGrounded)
{
ChangeStateTo(EnemyState.Idle);
}
else
{
if (_rng.NextDouble() < 0.33)
{
TurnAround(); //this is to make them look a little confused sometimes.
}
ChangeStateTo(EnemyState.Idle);
}
}
break;
}
case EnemyState.Pursuing:
{
RunEnemyTimers(_walkSprites, _chasingCycleDuration);
_rb.velocity = new Vector2(!isBlocked ? _pursuitSpeed * _facingDirection : _rb.velocity.x * 0.99f, _rb.velocity.y);
bool decideToStop = StateTimerExceeds(_pursueDuration) ||
iAmAboutToHurtMyFeetsies ||
isBlocked || !isGrounded ||
Math.Abs(_rb.velocity.x) < 0.01f;
if (decideToStop)
{
if (!isGrounded)
{
_rb.velocity = new Vector2(_rb.velocity.x * 0.5f, _rb.velocity.y);
}
ChangeStateTo(EnemyState.Alerted);
}
if (attackableInRange)
{
ChangeStateTo(EnemyState.Windup);
}
if (PlayerDetected())
{
_stateTimer -= dT;
}
break;
}
case EnemyState.Windup:
{
RunEnemyTimers(_windupSprites, _attackWindupDuration);
if (StateTimerExceeds(_attackWindupDuration))
{
ChangeStateTo(EnemyState.Attacking);
}
break;
}
case EnemyState.Attacking:
{
RunEnemyTimers(_attackSprites, _attackOutDuration);
var filter = new ContactFilter2D();
filter.layerMask = _hostileToMask;
filter.useLayerMask = true;
Collider2D[] contacts = new Collider2D[1];
_attackHurtbox.OverlapCollider(filter, contacts);
if (contacts[0] != null)
{
//Debug.Log(contacts[0]);
_player.AttemptTakeDamage(_damageDealt);
_player.GetComponent <Rigidbody2D>().velocity
+= new Vector2(Math.Sign(_player.transform.position.x - transform.position.x) * 5f, 0);
}
if (StateTimerExceeds(_attackOutDuration))
{
ChangeStateTo(EnemyState.Recovery);
}
break;
}
case EnemyState.Recovery:
{
RunEnemyTimers(_recoverySprites, _attackRecoveryDuration);
if (StateTimerExceeds(_attackRecoveryDuration))
{
FacePlayer();
ChangeStateTo(EnemyState.Alerted);
}
break;
}
}
}
