Personally, I'd like a realistic version of Redpower Frames that utilize Rotarycraft axles. You have a 'wheel' block, which when placed on a surface (such as minecart tracks), and given power via a powerful enough engine, will move forward taking any connected parts (such as the engine) with it. While this would not be particularly fast, it would make realistic and capable moving machines.
Other parts (ie: Rotarycraft Jet engines) could be coupled to make different kinds of movement. Tank tracks could be coupled to two wheels on the same axis (much like Belts in Rotarycraft) to create a more mobile vehicle capable of driving on all surfaces rather than just train tracks. Turning a vehicle would work in an intuitive manner, if a railway track curved and there was sufficient room, then the vehicle would convert to an entity, play an animation of rotating 90 degrees, then convert back and carry on. If a vehicle with caterpillar tracks turned one track forward and the other backwards, then the vehicle would likewise rotate on the spot (like tracks behave in the real world). Of course, traditional steering like most four wheeled vehicles do in the real world would not be possible as it would be difficult to implement.
A problem with this is at the moment (in my understanding), is that Reika has not added dual-direction rotation to axles/shafts (for example, when powered, a shaft will play a generic animation of rotating clockwise, and will transmit with it data of the shaft's torque and speed, but not whether it is turning clockwise or anticlockwise). Due to this, a lot of what I have described would be impossible. Therefore, I propose a block that is capable of inverting the mechanical direction of power when it is placed directly next to a wheel, and changing directions when given a redstone current. (it would simply change the direction of the wheel and not require a total rewrite of the Rotarycraft API.) A block could also be added called the 'cockpit', which if the player sat in it, would convert WASD movement into redstone signals at each side of the cockpit, allowing for complex control systems to be made.
While this would be reasonably difficult to implement (I'm not asking for Reika to add this functionality to Rotarycraft), I'm pretty sure the license of Jakj's Redstone in Motion mod allows for the mod to be modified (check the licensing here:). Someone with enough knowledge in Java could probably take Redstone in Motion and add this functionality to it (of course this might require a full rewrite of the machines in the mod, and possibly the way it handles motion, but it could be done).
Other parts (ie: Rotarycraft Jet engines) could be coupled to make different kinds of movement. Tank tracks could be coupled to two wheels on the same axis (much like Belts in Rotarycraft) to create a more mobile vehicle capable of driving on all surfaces rather than just train tracks. Turning a vehicle would work in an intuitive manner, if a railway track curved and there was sufficient room, then the vehicle would convert to an entity, play an animation of rotating 90 degrees, then convert back and carry on. If a vehicle with caterpillar tracks turned one track forward and the other backwards, then the vehicle would likewise rotate on the spot (like tracks behave in the real world). Of course, traditional steering like most four wheeled vehicles do in the real world would not be possible as it would be difficult to implement.
A problem with this is at the moment (in my understanding), is that Reika has not added dual-direction rotation to axles/shafts (for example, when powered, a shaft will play a generic animation of rotating clockwise, and will transmit with it data of the shaft's torque and speed, but not whether it is turning clockwise or anticlockwise). Due to this, a lot of what I have described would be impossible. Therefore, I propose a block that is capable of inverting the mechanical direction of power when it is placed directly next to a wheel, and changing directions when given a redstone current. (it would simply change the direction of the wheel and not require a total rewrite of the Rotarycraft API.) A block could also be added called the 'cockpit', which if the player sat in it, would convert WASD movement into redstone signals at each side of the cockpit, allowing for complex control systems to be made.
While this would be reasonably difficult to implement (I'm not asking for Reika to add this functionality to Rotarycraft), I'm pretty sure the license of Jakj's Redstone in Motion mod allows for the mod to be modified (check the licensing here:). Someone with enough knowledge in Java could probably take Redstone in Motion and add this functionality to it (of course this might require a full rewrite of the machines in the mod, and possibly the way it handles motion, but it could be done).