Timeline for How can I Intercept object with a circular motion
Current License: CC BY-SA 3.0
22 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 18, 2019 at 17:19 | answer | added | Bram | timeline score: 0 | |
| May 15, 2014 at 12:09 | vote | accept | Ausa | ||
| May 15, 2014 at 5:40 | answer | added | Eric Lippert | timeline score: 2 | |
| May 14, 2014 at 22:41 | comment | added | Eric Lippert | As an interesting historical note: planets usually rotate in the same direction as their orbit, which is therefore also anticlockwise as seen from above the northern hemisphere. From this fact we can deduce that sundials were invented in the northern hemisphere. Had sundials been invented in the southern hemisphere then clockwise would be the other way. | |
| May 14, 2014 at 22:34 | comment | added | Eric Lippert | A minor note: you have your planet orbiting the sun clockwise. Of course there is no up or down in space; either clockwise or anticlockwise is "right". But traditionally we depict the planets in our solar system as going anticlockwise, as though the observer was hanging above the northern hemisphere. | |
| May 14, 2014 at 18:54 | comment | added | amitp | Idea: Consider what the intercept looks like in space-time. The spaceship's trajectory is a line in (x,y,t) space, and it has a minimum slope (relative to t). The planet's trajectory is a helix. Among all lines that meet that helix and exceed the min slope, which one intercepts at the lowest t? Might be messy this way :( | |
| May 14, 2014 at 18:39 | answer | added | API-Beast | timeline score: 11 | |
| May 14, 2014 at 18:06 | answer | added | Toni Makkonen | timeline score: 1 | |
| May 14, 2014 at 18:00 | answer | added | DMGregory♦ | timeline score: 3 | |
| May 14, 2014 at 16:58 | comment | added | Zan Lynx | Also for realism everything in space is in orbit, so all the equations are ellipses and hyperbolas, not simple circles and lines. | |
| May 14, 2014 at 16:56 | comment | added | Zan Lynx | Make an equation describing the position of the ship and one for the position of the planet in terms of time t. Then use your old algebra skills to solve the equations for ship_pos = planet_pos. I think that will do it. | |
| May 14, 2014 at 15:45 | comment | added | AakashM | To clarify, is the situation? given for the planet: orbit centre, orbit radius, angular speed, current location; for the ship: current location, current speed; determine direction of motion for ship in order to intercept planet | |
| May 14, 2014 at 15:39 | comment | added | Drake | Do you care about slowing down before reaching the planet? Also, you say you know the spaceship's initial speed, but can it change its velocity instantly or does it have a maximum acceleration? | |
| May 14, 2014 at 15:34 | answer | added | Chaosed0 | timeline score: 1 | |
| May 14, 2014 at 14:53 | comment | added | thegrinner | Is your ship able to change speed and direction, or are those constant? Also, this question about avoiding having missiles circle a target might be helpful. | |
| May 14, 2014 at 13:06 | answer | added | Tholle | timeline score: 3 | |
| May 14, 2014 at 12:45 | history | tweeted | twitter.com/#!/StackGameDev/status/466559855277248512 | ||
| May 14, 2014 at 12:32 | comment | added | Jari Komppa | This would probably work better in math.stackexchange.com.. | |
| May 14, 2014 at 12:01 | comment | added | Ausa | No I am trying to calculate the angle the ship needs to move in order to intercept the planet. | |
| May 14, 2014 at 11:50 | comment | added | Heckel | I am not sure to understand, you just want the planet to follow the circle at a definite speed ? | |
| May 14, 2014 at 11:47 | review | First posts | |||
| May 14, 2014 at 12:32 | |||||
| May 14, 2014 at 11:30 | history | asked | Ausa | CC BY-SA 3.0 |