查看“Non possum vivi”的源代码

{{Languages|zh|欲生不能}}

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|screenshotDesc=''Non possum vivi'' in level 13 section 4. Note that a paper ball is required to complete this section, but the ball is a stone ball, and there is no way to change it to a paper ball in this section.
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'''''Non possum vivi'''''<ref>speedystoneball's term; short form: ''vivi''</ref> (Latin for "(I) can't live"), also known as a '''wrong ball''' or '''stalemate'''<ref>Dilant's term</ref> is a softlock where the player is unable to make progress due to having the wrong ball material with no access to a [[transformer]]. ''Non possum vivi'' can only be resolved by restarting the level; not even a [[suicider]] can solve the problem, since dying does not transform the ball. ''Non possum vivi'' is usually a serious flaw in the design of [[mapping]] (worse than ''Non possum mori'' ), but can generally be easily avoided by the map maker's careful inspection of the map logic.

''Non possum vivi'' appears in both [[original level]]s and [[custom level]]s. In a broader sense, ''non possum vivi'' can refer to any softlock that cannot be resolved with a suicider.

== Examples from original level ==

* In level 4, section 2, it is possible to [[gheto]] the last wooden transformer with a stone ball. However, the stone ball is unable to climb up the steep slope, and one would get into a ''non possum vivi''.
* For level 13, section 4, if one enters with a stone ball, or changes into a stone ball at the end of the section and then dies, one would be stuck in a ''non possum vivi'', as a paper ball is required to complete this section.

== See also ==

* Another type of softlock: ''[[Non possum mori]]''

== References ==