fix(Chick): 调整攻击方法随机概率，增加钻石攻击几率

将冲刺攻击的概率降低，钻石攻击的概率提高一倍，使战斗行为更平衡

scripts/Contents/Characters/Chick.gd

@@ -23,7 +23,7 @@ func ai():
 	elif currentFocusedBoss.position.distance_to(position) < 700:
 		tryAttack(1)
 	else:
-		var method = MathTool.randc_from([3, 3, 0, 3, 3])
+		var method = MathTool.randc_from([3, 0, 0]) # 0: 钻石, 1: 激光, 2: 喷火, 3: 冲刺，这里随机到钻石的概率比冲刺大一倍
 		tryAttack(method, method == 3)
 func attack(type):
 	if type == 0: