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[[File:三种球.jpg|thumb|The appearance of three types of ball (from left: paper ball, wood wooden ball, and stone ball).]]'''Ball''', or called the '''player ball''', is the core of [[Ballance]] and the only element that can be controlled py by the player directly. 三种球的平均直径均为4米，纸球最长轴可达5米。The mean diameter of every type of ball is 4 meters (0.8 units): while the shapes of wood ball and stone ball are perfectly round, the paper ball is irregular, with its maximum width being 5 meters (1 unit). By using [[transformer]]s the current ball type can be changed.

== 类型 Types ===== 木球 Wooden ball ===1~12关中玩家球出生时默认的种类。质量为1.9吨。外观总体上呈棕黄色，是由带有些许青斑和划痕的木条粘合拼接而成。质量轻且灵活，是三种球类中手感最为均衡的。它可以推动各种[[机关大全|机关]]，但需要一定的助跑；遇见大量[[机关大全|机关]]时（如大量[[箱子]]）显得无能为力。此外，它可以被最少6个风扇叠加吹起；理论上可以跨过无数个[[箱式浮板]]（需要高技术水平）。=== 石球 ===13关出生时默认的球。质量为10吨。外观总体上呈青绿色，表面有大量的坑。它的力量大，可以无需助跑推动各种机关；沙袋不容易阻挡它；但它的惯性巨大，不易操控。不过由此也可以被用在[[制图|自制地图]]中通过“过山车”式设计。事实上，第9、13关就有了这种设计。它还可以使[[软木桥]]断裂。此外，它可以被最少32个风扇叠加吹起；理论上可以跨过3个[[箱式浮板]]（需要高技术水平）。=== 纸球 ===质量为0.2吨。第一关中不存在纸球[[变球器]]。外观上是由数张报纸粘合而成的一个不规则白色球体，棱角分明。最大特点是十分轻盈，可被风扇吹起，不会压开[[箱式浮板]]；但是不能推动大多数机关（[[升降机]]围墙可以被纸球用力助跑推开；[[推板]]在特定情况下能够被推开；[[箱子]]可以非常困难地推开；[[单摆]]可以被轻松推开）。此外，由于其表面不平整，因此不能借助定位杆对齐通过单轨。

The default type of ball when the player [[start]]s at Level 1–12. It has a mass of 1.9 tons, with a brownish-yellow wooden [[texture]]. It is made by gluing and splicing wooden strips with some green spots and scratches. Lightweight and flexible, it has the most balanced feel among the three types of balls. It can push all kinds of [[objects]], but it needs a certain run-up; when encountering a large number of [[objects]] (such as a large number of [[box]]es), it seems powerless. In addition, it can be lifted by a minimum of 6 stacked ventilators; theoretically it can cross an infinite number of [[tilting blocks]] (requires high skill level). == 物理参数 =Stone ball === The default ball type on start of Level 13. It has a mass of 10 tons. The appearance is generally turquoise, with a large number of pits on the surface. It has great strength and can push various mechanisms without a run-up; and cannot be easily blocked with sandbags; but its inertia is huge and it is not so easy to control. However, this can also be used in [[custom maps]] with a "rollercoaster" design. In fact, levels 9 and 13 have this design. It can also break [[suspension bridges]]. In addition, it can be lifted by a minimum of 32 stacked ventilators; in theory it can straddle 3 [[tilting blocks]] (requires high skill level). === Paper ball === The paper ball weighs 0.2 ton. There does not exist any paper [[transformer]]s in Level 1, and paper ball also cannot be used there. Its appearance is an irregular white sphere made of several newspapers glued together, with sharp edges and corners; it is very light, can be blown by a ventilator, and will not press open a [[tilting block]], but it cannot push most objects (the walls of the [[elevator]] can be pushed away by a paper ball; [[Bascule bridge]] can be pushed away under certain circumstances; [[Box]] can be pushed away with great difficulty; [[Turnstile]] can be pushed away easily). Also, because of its uneven surface, it can't be aligned with a monorail, even with rails or poles. == Physical parameters == 下面给出三种玩家球的物理属性（加黑体为与道具球不同之处）：Below are parameters of three types of balls ('''bold''' denotes difference from [[prop ball]]s):

! scope="col"| 物体Type! scope="col"| 碰撞箱直径/米Diameter of hitbox (meter)! scope="col"| 摩擦Friction! scope="col"| 弹性Elasticity! scope="col"| 质量/吨Mass (ton)! scope="col"| 线性阻尼Linear damping! scope="col"| 旋转阻尼Rotational damping! scope="col"| 受力Force (at 1x speed)

! scope="row"| 木球Stone| 4.0| '''0.5'''| 0.1| 10.0| '''0.3'''| 0.1| 0.92|-! scope="row"| Wood

! scope="row"| 石球Paper| Mean 4.0| '''0., maximum 5'''| 0.1| 10.0| '''0.3'''| 0.1| 0.92|-! scope="row"| 纸球| 逻辑网格4.0，最长轴达5.0

''注：“受力”指玩家操作时，单位时间内给球施加的作用力。因此，这一项内容对于道具球无意义。Note: "Force" is the force on the ball when it is made to roll by the player pressing down the keyboard; as a result, it is meaningless to the prop balls.''

! scope="col"| 物体Type! scope="col"| 碰撞箱直径/米Diameter of hitbox (meter)! scope="col"| 摩擦Friction! scope="col"| 弹性Elasticity! scope="col"| 质量/吨Mass (ton)! scope="col"| 线性阻尼Linear damping! scope="col"| 旋转阻尼Rotational damping

! scope="row"| 道具木球Stone

| 0.67| 0.1| 10.0

! scope="row"| 道具石球Wood

| 0.7| 0.1| 10.06

! scope="row"| 道具纸球Paper| 逻辑网格4Mean 4.0，最长轴达50, maximum 5.0

== 影响 Effects == * 球可以触发Balls can activate [[存档点checkpoint]]。s.* 仅有球到达机关附近时，机关才会加载。其余时间机关是静止的。Objects are only loaded when a ball comes near it; otherwise they are "frozen".* 石球（无论修改其质量为何值）可以在接触时使Stone ball can break down [[软木桥suspension bridge]]断裂。但是需要注意的是，s on contact, regardless of its mass (if changed by modifying [[道具球|道具石球Balls.nmo]]并不会产生此效果。); however the prop stone ball will not do so. == Did you know ==

== 你知道吗 ==* 木球和石球的形状是直径为4米的正球形，且被脚本写死；纸球的形状则是不规则的，通过修改[[The shapes of the wood ball and the stone ball are perfect balls with the diameters of 4 meters (0.8 units), which are fixed in scripts, which means that only the appearances, not the hitboxes of wood/stone balls can be changed by modifying Balls.nmo; the shape of paper ball is irregular and its hitbox can even be modified in Balls.nmo]]甚至可以更改其形状。. * 虽然纸球的弹力是石球的4倍，木球的弹力是石球的2倍，修改BallsThough the paper ball has a elasticity 4 times of the stone ball, 2 times of the wood ball, modifying Balls.nmo时将三者等比调高，制作出nmo can increase the ratio, and and when the [[弹力球Bouncy Ball]]时却会导致石球表观弹力高于木球，木球表观弹力高于纸球。推测这可能是三者空气阻力不同所致。is produced, the apparent elasticity of the stone ball is higher than that of the wooden ball, and the apparent elasticity of the wooden ball is higher than that of the paper ball. It is speculated that this may be caused by the difference in air resistance among the three.* Paper balls can be blown by ventilators while prop paper balls can't.

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