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'''Ball''', or called the '''player ball''', is the core of [[Ballance]] and the only element that can be controlled py by the player directly. The mean diameter of every type of ball is 4 meters: while the shapes of wood ball and stone ball are perfectly round, while the paper ball is irregular, with its maximum width being 5 meters.

* 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。Only when a ball comes near the modules will they be loaded, 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 editing [[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.

* 木球和石球的形状是直径为4米的正球体，且被脚本写死；纸球的形状则是不规则的，通过修改[[Balls.nmo/xh|Balls.nmo]]甚至可以更改其形状（包括碰撞箱）。而在Balls.nmo中修改其余两种球的形状，只会改变它们的外观，而它们正球体的碰撞箱不会变。