Ball

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This page is about the ball that can be directly controlled by the player by pressing down buttons on the keyboard, not the Prop ball, which is a module and used as a type of props.
The appearance of three types of ball (from left: paper ball, wood ball, and stone ball).

Ball, or called the player ball, is the core of Ballance and the only element that can be controlled 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, the paper ball is irregular, with its maximum width being 5 meters.

Types

Wood ball

The default type of ball when the player starts at Level 1–12. It has a mass of 1.9 tons, with a brownish-yellow wooden texture. 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,但需要一定的助跑;遇见大量机关时(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)。

Stone ball

The default ball type on start of Level 13. 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)。

Paper ball

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。

Physical parameters

Below are parameters of three types of balls (bold denotes difference from prop balls):

Type Diameter of hitbox (meter) Friction Elasticity Mass (ton) Linear damping Rotational damping Force
Wood 4.0 0.8 0.2 1.9 0.9 0.1 0.43
Stone 4.0 0.5 0.1 10.0 0.3 0.1 0.92
Paper Mean 4.0, maximum 5.0 0.5 0.4 0.2 1.5 0.1 0.065

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.

For references, below are parameters of prop balls:

Type Diameter of hitbox (meter) Friction Elasticity Mass (ton) Linear damping Rotational damping
Wood 4.0 0.6 0.2 2.0 0.6 0.1
Stone 4.0 0.7 0.1 10.0 0.2 0.1
Paper Mean 4.0, maximum 5.0 0.5 0.4 0.2 1.5 0.1

Effects

  • Balls can activate checkpoints.
  • Only when a ball comes near the modules will they be loaded, otherwise they are "frozen".
  • Stone ball can break down suspension bridges on contact, regardless of its mass (if changed by modifying Balls.nmo); however the prop stone ball will not do so.

Did you know

  • Shapes of the wood ball and the stone ball are perfect balls with the diameters of 4 meters, which are fixed in scripts; the shape of paper ball is irregular and its hitbox can even be modified in Balls.nmo. 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。
  • 虽然默认纸球的弹力是石球的4倍,木球的弹力是石球的2倍,修改Balls.nmo时将三者等比调高,制作出弹力球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。
  • 纸球可以被风扇吹起,而道具纸球不能。