feat(游戏平衡): 调整敌人生成和子弹行为

- 将敌人数量增长逻辑移至GameRule并调整计算公式
- 修改鸡的攻击行为，子弹现在会朝向玩家发射
- 调整子弹伤害值和旋转动画
- 减少玩家初始苹果数量并增加敌人掉落苹果数量
- 修改BOSS出现波数为第8波
- 移除无用属性和优化代码结构

scripts/Contents/Characters/Hen.gd

@@ -4,14 +4,16 @@ class_name Hen
 func _ready():
 	fields[FieldStore.Entity.MAX_HEALTH] = 75
 	fields[FieldStore.Entity.MOVEMENT_SPEED] = 0.25
+	fields[FieldStore.Entity.OFFSET_SHOOT] = 10
 	super._ready()
 
 func ai():
+	cooldownUnit = randi_range(1500, 4000)
 	move(currentFocusedBoss.position - position)
 	tryAttack(0)
 func attack(type):
 	if type == 0:
 		var weaponPos = findWeaponAnchor("normal")
 		for i in randi_range(1, 4):
-			BulletBase.generate(preload("res://components/Bullets/Star.tscn"), self, weaponPos, randf_range(0, PI * 2))
+			BulletBase.generate(preload("res://components/Bullets/Star.tscn"), self, weaponPos, (currentFocusedBoss.position - position).angle())
 	return true

scripts/Contents/Wave.gd

@@ -9,11 +9,10 @@ var to: float = 0
 var per: int = 0
 
 static var current: int = 0
-static var countBoost: float = 0.1 # 每波增加的敌人数量百分比，指数级
 static var data: Array[Wave] = [
 	# entity, minCount, maxCount, isBoss, from, to, per
 	create(preload("res://components/Characters/Hen.tscn"), 1, 5, false, 0, INF, 1),
-	create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 1, INF, 4)
+	create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 8, INF, 4)
 ]
 
 static func create(
@@ -39,7 +38,7 @@ static func entityCountOf(wave: Wave) -> int:
 		if wave.isBoss:
 			return 1
 		else:
-			return randi_range(int(wave.minCount), int(wave.maxCount * ((1 + countBoost) ** current)))
+			return randi_range(ceil(wave.minCount), floor(wave.maxCount * (1 + GameRule.entityCountBoostPerWave * current)))
 	return 0
 static func spawn():
 	for i in range(len(data)):