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Of course the ball would not simply fall to the ground in a parabola, as there would be no ground below it!īut what happens to the ball? The curvature of its fall makes it fully circle the planet! And if there is no atmosphere and thus nothing to slow the ball down, it will not loose momentum and stay in orbit. But now imagine you do this on the planet of the little prince. Usually we approximate this with a parabola, meaning a flat ground. Imagine this: It is moving literally so fast that it misses the ground. So what force keeps it from speeding up towards or around the planet? mr womp womp explained it quite well, but it is hard to grasp.

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Physics Question though: When an object is in free fall (orbit) around a planet, gravity is always acting on it. This is also why when you are in an elliptic orbit, your velocity is biggest at perigee and smallest at apogee (because those are the two extremes as far as h relative to the center of mass is concerned) However, when in a circular orbit, the h does not change, so no energy is converted to kinetic energy and therefore, V does not change either. Indeed it does, since velocity increases. Since EPot+EMec=*a constant*, then EMec must increase. This is because h is decreasing, which means that potential energy is decreasing as well.

When you're in regular freefall (like the hammer and feather thing on the moon for example), then you are directly converting potential energy to kinetic energy. Where m is mass, G is Gravity, h is height from ground, and V is velocity, and C is a constant. Let's have a look at the formulas for these and it will become incredibly obvious. So what force keeps it from speeding up towards or around the planet?Īs you might know, Potential energy and Kinetic Energy are at play here. Every so often, the game recalculates center of mass, center of thrust, and other stuff and uses that to calculate physics stuff. Here's an idea: The rocket isn't rendered during flight, but instead represented with an icon. It's probably going to have to be ASM for the physics and algorithms and C for the graphics. You're probably going to end up having to mix assembly with C. If you can do this right, then it'll only be a slight performance hit. Then you have to deal with physics, but specifically part-to-part collisions. There are many algorithms you can use for rotation, but I recommend you use the simplest, fastest one. Rotation isn't a particularly difficult concept to grasp the problem is rotating the sprite itself. To make things simpler, you don't even have to make snapping just make sure all parts of the rocket are connected to the root part. Then maybe later you can add RCS and overheating.įirst, you want to define a root part, which is the cockpit (or wherever crew is held) then you can build off of it. That was it, and that's all you really need. You had the cockpit, the 1 m fuel tank, the 2 rocket engines (one with thrust vectoring and the other one without), the wing, and SAS. The first version of KSP really only had 6 parts. The only things that are worth saving are ships, their orbital parameters, and the game time which can be used to determine the mean anomaly and current position of celestial bodies. Well, you don't need an AppVar for each of the planets, since they're all hardcoded into the game along with the sprites and orbital parameters.

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(NOTE: not every slide has more info (marked with an 'no more info popup'), nor does every button do something.) Sorry for any bugs that may occur, I had to hand draw all the pictures and make this PowerPoint in only two days.Īnyways, feel free to leave any constructive feedback, or let me know if you know any rocket science!įinally, here is the link to this PowerPoint (it may run better if you download it) Also, the five buttons on the bottom of most slides work. Only use your arrow keys to get more info for that slide. If you click on an option like it will take you to the correct slide. However, that didn't stop me from making a PowerPoint to layout most of my ideas.ĭon't use your arrow keys on your keyboard to go to the next slide, I made this like a wire frame. So while I was playing KSP I thought, 'Hey, why not make a 2D version of this game for my calculator?' Unfortunately, the only way to get the FPS that I want for this game requires it to be a program written in C, and I know 0 C programing.

OBJECT THROWER KSP MAC PLUS

I was thinking, we have a bunch of space games for the Ti-84 Plus CE but none of them really make me to keep them on my calculator.

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