11 lines
853 B
Markdown
11 lines
853 B
Markdown
# Singleplayer Systems {#sp}
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## Level Transition System {#transitions}
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Moving between different levels is ensured in part by the engine, and in part by Nuclide and sub-systems such as the [Save/Restore System](@ref saveload).
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Level designers create level changes by utilising the trigger_changelevel entity. For transitions to work, they usually need to incorporate an info_landmark, to designated a shared point between two levels.
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In addition, it is recommended that they place a trigger_transition with the same name as the info_landmark. Otherwise you risk carrying over too much entity data. Please read the entity documentation for more details.
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When a level transition is completed, Nuclide will call the overridable method `NSEntity::TransitionComplete()` on every entity, to give it a chance to re-align itself with the new environment.
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