feat: 添加子弹生成和动画功能，创建铅笔子弹及其资源

scripts/Contents/Bullets/Pencil.gd

@@ -0,0 +1 @@
+extends BulletBase

scripts/Contents/Characters/Bear.gd

@@ -1 +1,17 @@
 extends EntityBase
+class_name Bear
+
+func ai():
+	pass
+func attack(type):
+	if type == 0:
+		var weaponPos = findWeaponAnchor("normal")
+		return BulletBase.generate(preload("res://components/Bullets/PurpleCrystal.tscn"), self, weaponPos, (get_global_mouse_position() - weaponPos).angle())
+func sprint():
+	move(Vector2(
+		Input.get_axis("m_left", "m_right"),
+		Input.get_axis("m_up", "m_down")
+	) * sprintMultiplier, true)
+func heal(count: float):
+	health += count
+	DamageLabel.create(-count, false, damageAnchor.global_position + MathTool.randv2_range(GameRule.damageLabelSpawnOffset))

scripts/Contents/Characters/Rooster.gd

@@ -1,9 +1,6 @@
 extends EntityBase
 class_name Rooster
 
-func _ready():
-	super._ready()
-
 func ai():
 	texture.play("walk")
 	var direction = Vector2(

scripts/Statemachine/BulletBase.gd

@@ -12,6 +12,9 @@ class_name BulletBase
 @export var canDamageSelf: bool = false # 是否可以伤害发射者
 @export var needEnergy: float = 4.0 # 发射时需要消耗的能量
 
+@onready var animator = $"%animator"
+@onready var hitbox = $"%hitbox"
+
 var launcher: EntityBase = null
 var spawnInWhen: float = 0
 var spawnInWhere: Vector2 = Vector2.ZERO
@@ -20,6 +23,8 @@ func _ready():
 	area_entered.connect(hit)
 	spawnInWhen = Time.get_ticks_msec()
 	spawnInWhere = position
+	animator.play("spawn")
+	spawn()
 func _process(_delta: float) -> void:
 	if lifeTime > 0:
 		if Time.get_ticks_msec() - spawnInWhen >= lifeTime:
@@ -51,6 +56,8 @@ func ai():
 	pass
 func destroy():
 	queue_free()
+func spawn():
+	pass
 
 static func generate(
 		bullet: PackedScene,

scripts/Tools/TickTool.gd

@@ -0,0 +1,4 @@
+class_name TickTool
+
+static func millseconds(ms: int):
+	return await WorldManager.tree.create_timer(ms / 1000.0).timeout