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(