Game Engine
The Cube engine was designed as an outdoor engine, i.e. it's designed for maps that are outdoors rather than Doom and Quake, which are optimized for indoors. It utilizes a pseudo-3D world model similar to the Doom engine, based on a 2D height map. This imposes some limitations (e.g. no rooms above rooms), but does permit slopes and 3D props which in turn can be used to make up for most limitations, for example to create bridges with a passage below.
The engine is based on zero-precompilation philosophy—all map data is interpreted dynamically, with no need to recalculate such as shadowmaps or BSP data. This makes realtime in-game map editing feasible. Cube supports multi-user, realtime map editing.
The engine is compact and relies on simplicity and brute force instead of fine-tuned complexity.
Read more about this topic: Cube (video game)
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—André Maurois (1885–1967)
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