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The game provides a scripting language called FunkyTrees (FT). Moving parts, such as actuated doors, bomb bays, custom landing gear can be created with the help of rotators an pistons. Custom cockpit instrumentation can be created and made to display flight parameters. Parts like engines, rotators, wheels and cannons are also highly customizable, and the player can change size, power, controls etc. Aerodynamics, weights and fuel volumes will be automatically updated when parts are modified. Control surfaces can be customized and be bound to different inputs. The wings are made in a similar matter, the player specifying the span, chords and offsets of a wing section. The sections can be hollow, or feature intakes and nose cones and side cuts. This technique, of course, can be used not only to create fuselages, but almost any shape. The fuselage block allows to set a cross section, corner style (hard corners or different variations of curved ones), length and offsets of a fuselage section, and the fuselage can smoothly blend between different cross-sections.
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While SimplePlanes has such blocks, most parts can be reshaped by the player to make the complex curves of modern aircraft. Most building games have structures made out of parts whose shape cannot be changed. Īn outstanding feature of SimplePlanes is the procedural building system. Planes (or other creations) created by the community can also be downloaded from the website, which has social-network like features: player profiles with their creations, aircraft rating via upvotes, forums, and a gallery of all designs. In SimplePlanes the player is given the freedom of building anything they want to create using the materials and objects provided, and players can additionally use XML modifications (save editing) on their creation.
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