引入资源

  • 将DestroySmoke、hit_00、hit_01这几个资源导入项目
  • 添加一个HurtBox，并添加一个CollisionShape2D
  • 创建两个新的State
    • Stun 
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      class_name EnemyStateStun extends EnemyState

      @export var anmi_name: String = "stun"

      @export_category("AI")
      @export var knockback_speed: float = 200.0
      @export var decelebrate_speed: float = 10.0
      @export var next_state: EnemyState

      var direction: Vector2
      var animation_finished: bool = false

      func init() -> void:
      	enemy.EnemyDamaged.connect(_on_enemy_damaged)
      	pass

      func  Enter() -> void:
      	enemy.invulnerable = true
      	animation_finished = false
      	direction = enemy.global_position.direction_to(enemy.player.global_position)
      	enemy.SetDirection(direction)
      	enemy.velocity = direction * -knockback_speed
      	enemy.UpdateAnimation(anmi_name)
      	enemy.animation_player.animation_finished.connect(_on_animation_finsihed)
      	pass
      	
      func Exit() -> void:
      	enemy.invulnerable = false
      	enemy.animation_player.animation_finished.disconnect(_on_animation_finsihed)
      	pass
      	
      func Process(_delta: float) -> EnemyState:
      	if animation_finished:
      		return next_state
      	enemy.velocity -= enemy.velocity * decelebrate_speed * _delta
      	return null

      func PhysicsProcess(_delta: float) -> EnemyState:
      	return null

      func _on_enemy_damaged() -> void:
      	state_machine.ChangeState(self)

      func _on_animation_finsihed(_a: String) -> void:
      	animation_finished = true

    • Destroy 
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      class_name EnemyStateDestroy extends EnemyState

      @export var anmi_name: String = "destroy"

      @export_category("AI")
      @export var knockback_speed: float = 200.0
      @export var decelebrate_speed: float = 10.0

      var direction: Vector2

      func init() -> void:
      	enemy.EnemyDestroyed.connect(_on_enemy_destroyed)
      	pass

      func  Enter() -> void:
      	enemy.invulnerable = true
      	direction = enemy.global_position.direction_to(enemy.player.global_position)
      	enemy.SetDirection(direction)
      	enemy.velocity = direction * -knockback_speed
      	enemy.UpdateAnimation(anmi_name)
      	enemy.animation_player.animation_finished.connect(_on_animation_finsihed)
      	pass
      	
      func Exit() -> void:
      	enemy.invulnerable = false
      	enemy.animation_player.animation_finished.disconnect(_on_animation_finsihed)
      	pass
      	
      func Process(_delta: float) -> EnemyState:
      	enemy.velocity -= enemy.velocity * decelebrate_speed * _delta
      	return null

      func PhysicsProcess(_delta: float) -> EnemyState:
      	return null

      func _on_enemy_destroyed() -> void:
      	state_machine.ChangeState(self)

      func _on_animation_finsihed(_a: String) -> void:
      	enemy.queue_free()

  • 创建Destroy动画
  • 添加HitBox节点

小结

  • 动画可以通过多个Track组合
  • Player击中HitBox，触发 HitBox的damaged信号
  • Enemy接收到信号触发takeDamaged方法，扣除hp，根据hp状态选择发送受伤信号或者死亡信号
  • stun节点监听受伤信号
  • destroy节点监听死亡信号