Author Topic: physics @ work!  (Read 16884 times)

0 Members and 1 Guest are viewing this topic.

Offline Galemp

  • Actual father of Samus
  • 212
  • Ask me about GORT!
    • Steam
    • User page on the FreeSpace Wiki
Quote
Originally posted by Venom
btw, considering some ships can strafe left/right and up/down, it would make sense they could fly back too...
but all that is a pain to use with a joystick ( hence my mouse control request, btw ).


Ever play Descent? ;7

I think what he was asking in Q1 was, if you're sitting still and firing your Morning Star, why don't you get pushed backwards?
"Anyone can do any amount of work, provided it isn't the work he's supposed to be doing at that moment." -- Robert Benchley

Members I've personally met: RedStreblo, Goober5000, Sandwich, Splinter, Su-tehp, Hippo, CP5670, Terran Emperor, Karajorma, Dekker, McCall, Admiral Wolf, mxlm, RedSniper, Stealth, Black Wolf...

 

Offline Exarch

  • 27
We should all be thankful FS2 isn't based on a realistic flight model. Try Elite 2, which has just that, and see just how cumbersome dogfighting is. So from a point of wanting the game to be fun, freespace physics beat real physics. And without a doubt it IS fun, thus it aint broke, and we don't need it fixed :D

 

Offline mikhael

  • Back to skool
  • 211
  • Fnord!
    • http://www.google.com/search?q=404error.com
Quote
Originally posted by Exarch
We should all be thankful FS2 isn't based on a realistic flight model. Try Elite 2, which has just that, and see just how cumbersome dogfighting is. So from a point of wanting the game to be fun, freespace physics beat real physics. And without a doubt it IS fun, thus it aint broke, and we don't need it fixed :D


Or try the transcendent Iwar2 where you have a realistic flight model and dogfights are an elaborate and graceful dance.

Of course, most of you arcade pilots don't stand a chance when real physics are in play. ;)
[I am not really here. This post is entirely a figment of your imagination.]

 

Offline petmar

  • 24
    • http://web.njit.edu/~pmm4/
Quote
Originally posted by GalacticEmperor


Ever play Descent? ;7

I think what he was asking in Q1 was, if you're sitting still and firing your Morning Star, why don't you get pushed backwards?


That's exactly what I meant. Also, about the spin question, i mean that if you fire at the port wing of a seth that's playing dead with a morningstar, the entire ship moves in the same direction, instead of pivoting about its center of mass. This also extrapolates to all other ships and scenarios, except when the ship is already spinning.
"And it truly is the most godawful looking thing you will ever see in FreeSpace short of an entire TC of untextured superpowerful cubes named 'TeH DeStRoIeRR!!!!11!1!'" -- Stryke9

"There is an expanding frontier of ignorance." -- Richard Feynman

"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened." -- Matthew 7:7-8

"To every thing there is a season, and a time to every purpose under the heaven: A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted; A time to kill, and a time to heal; a time to break down, and a time to build up; A time to weep, and a time to laugh; a time to mourn, and a time to dance; A time to cast away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing; A time to get, and a time to lose; a time to keep, and a time to cast away; A time to rend, and a time to sew; a time to keep silence, and a time to speak; A time to love, and a time to hate; a time of war, and a time of peace." -- Ecclesiastes 3

 

Offline Starks

  • 29
Your point is valid but moot in context that FS2 uses its own physics.
Formerly of the Dark Wings and Legion of Apocalypse

 

Offline petmar

  • 24
    • http://web.njit.edu/~pmm4/
Quote
Originally posted by mikhael


Or try the transcendent Iwar2 where you have a realistic flight model and dogfights are an elaborate and graceful dance.

Of course, most of you arcade pilots don't stand a chance when real physics are in play. ;)


I agree, but, the main point is that we have clear physics violations that make some parts of the game unbelieveable.

HOWEVER... I also want to congratulate and thank the people involved both with the supernova subscripting and thank volition for its foresight in a few issues, such as the supernova which is totally physically accurate (the first shockwave is lesser in total damage than the second, the first is stellar atmosphere, the second is the fusion core matter, which is mainly superheated superfluidic iron), and also collisions, which actually give the proper reverse velocities.

I didn't start this topic to criticize the game negatively, I just mean to suggest some ways of improving it. So, in that case, please post replies and physics questions as often as you like!
"And it truly is the most godawful looking thing you will ever see in FreeSpace short of an entire TC of untextured superpowerful cubes named 'TeH DeStRoIeRR!!!!11!1!'" -- Stryke9

"There is an expanding frontier of ignorance." -- Richard Feynman

"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened." -- Matthew 7:7-8

"To every thing there is a season, and a time to every purpose under the heaven: A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted; A time to kill, and a time to heal; a time to break down, and a time to build up; A time to weep, and a time to laugh; a time to mourn, and a time to dance; A time to cast away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing; A time to get, and a time to lose; a time to keep, and a time to cast away; A time to rend, and a time to sew; a time to keep silence, and a time to speak; A time to love, and a time to hate; a time of war, and a time of peace." -- Ecclesiastes 3

 

Offline Bobboau

  • Just a MODern kinda guy
    Just MODerately cool
    And MODest too
  • 213
I have always been a bit urket at the way the physics is aplyed to rotateing ships, namely that if you hit a ship with some mega wackamatron 5000 and the ship trys to turn rather than flying back in the direction you hit it it will act like a car in revers gear going back in it's frame of reference rather than the global frame
Bobboau, bringing you products that work... in theory
learn to use PCS
creator of the ProXimus Procedural Texture and Effect Generator
My latest build of PCS2, get it while it's hot!
PCS 2.0.3


DEUTERONOMY 22:11
Thou shalt not wear a garment of diverse sorts, [as] of woollen and linen together

 

Offline TrashMan

  • T-tower Avenger. srsly.
  • 213
  • God-Emperor of your kind!
    • FLAMES OF WAR
Where does it say that fs2 ships don't have reverse thrusters to come to a complete stop? You don't have to see them or control them, it could be automaticly, so.....
If that's the case that there is no physcs violation...
And it does make sense...you could make a space-fighter that moves just like a standard atmospheric one.... you just need a bunch of ai controlled thrusters.....
Nobody dies as a virgin - the life ****s us all!

You're a wrongularity from which no right can escape!

 

Offline Nico

  • Venom
    Parlez-vous Model Magician?
  • 212
Quote
Originally posted by GalacticEmperor


Ever play Descent? ;7

I think what he was asking in Q1 was, if you're sitting still and firing your Morning Star, why don't you get pushed backwards?


well yeah, obviously... never heard about my old Descent campaign for FS2? :p
SCREW CANON!

 

Offline Starks

  • 29
Speaking of Descent... What was that "Use Descent Physics" code that Volition slipped in?
Formerly of the Dark Wings and Legion of Apocalypse

 

Offline petmar

  • 24
    • http://web.njit.edu/~pmm4/
Documentation note: Is there anyone out there on the source project who knows where exactly to find the physics engine in this maze of code that we call our beloved FS2?
"And it truly is the most godawful looking thing you will ever see in FreeSpace short of an entire TC of untextured superpowerful cubes named 'TeH DeStRoIeRR!!!!11!1!'" -- Stryke9

"There is an expanding frontier of ignorance." -- Richard Feynman

"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened." -- Matthew 7:7-8

"To every thing there is a season, and a time to every purpose under the heaven: A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted; A time to kill, and a time to heal; a time to break down, and a time to build up; A time to weep, and a time to laugh; a time to mourn, and a time to dance; A time to cast away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing; A time to get, and a time to lose; a time to keep, and a time to cast away; A time to rend, and a time to sew; a time to keep silence, and a time to speak; A time to love, and a time to hate; a time of war, and a time of peace." -- Ecclesiastes 3

 

Offline Goober5000

  • HLP Loremaster
  • Moderator
  • 214
    • Goober5000 Productions
Quote
Originally posted by petmar
Documentation note: Is there anyone out there on the source project who knows where exactly to find the physics engine in this maze of code that we call our beloved FS2?


http://fs2source.warpcore.org/guided_tour.txt

Quote
- The physics library is pretty well partitioned and lives in its own little
  world. If you want to add newtonian motion, that's where you'd start.


Probably in the physics folder.

 

Offline petmar

  • 24
    • http://web.njit.edu/~pmm4/
thanks alot!
"And it truly is the most godawful looking thing you will ever see in FreeSpace short of an entire TC of untextured superpowerful cubes named 'TeH DeStRoIeRR!!!!11!1!'" -- Stryke9

"There is an expanding frontier of ignorance." -- Richard Feynman

"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened." -- Matthew 7:7-8

"To every thing there is a season, and a time to every purpose under the heaven: A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted; A time to kill, and a time to heal; a time to break down, and a time to build up; A time to weep, and a time to laugh; a time to mourn, and a time to dance; A time to cast away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing; A time to get, and a time to lose; a time to keep, and a time to cast away; A time to rend, and a time to sew; a time to keep silence, and a time to speak; A time to love, and a time to hate; a time of war, and a time of peace." -- Ecclesiastes 3

 

Offline Rampage

  • Son Of Rampage
  • 211
  • Urogynaecologist
"Sound cannot travel through vacuum.  It requires a medium."

This would make the game pretty boring, without sound and all.  But realistically, sound in space is non-existent.  In nebulas, however, sound can exist due to the presence of a medium (ionized particles).

 

Offline petmar

  • 24
    • http://web.njit.edu/~pmm4/
This is true, and I was hoping that someone would point this out.
However, though fs2 suffers from the star wars sound syndrome, I believe that it might be explained by saying that there are optical sensor on the fighters that re-interpret light as sound and put it through to a speakers in the cockpit, so that the pilot could be alerted to something coming from any given side.
"And it truly is the most godawful looking thing you will ever see in FreeSpace short of an entire TC of untextured superpowerful cubes named 'TeH DeStRoIeRR!!!!11!1!'" -- Stryke9

"There is an expanding frontier of ignorance." -- Richard Feynman

"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened." -- Matthew 7:7-8

"To every thing there is a season, and a time to every purpose under the heaven: A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted; A time to kill, and a time to heal; a time to break down, and a time to build up; A time to weep, and a time to laugh; a time to mourn, and a time to dance; A time to cast away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing; A time to get, and a time to lose; a time to keep, and a time to cast away; A time to rend, and a time to sew; a time to keep silence, and a time to speak; A time to love, and a time to hate; a time of war, and a time of peace." -- Ecclesiastes 3

 

Offline petmar

  • 24
    • http://web.njit.edu/~pmm4/
Most of the gun weapons in fs2 are energy based. Now, since we know that this makes them light-based weapons, that means that we should only be able to see them upon impact. Unless the craft have quantum-interlace sensors that can detect and show things faster than the speed of light, which they probably don't, gun fire should NOT be visible! Also, this might make swerving to avoid anything but missiles a bit more interesting.

While we're on the topic, though, why not try to make the levels of difficulty more and more realistic, since they'd be harder and harder as they approached realism?
"And it truly is the most godawful looking thing you will ever see in FreeSpace short of an entire TC of untextured superpowerful cubes named 'TeH DeStRoIeRR!!!!11!1!'" -- Stryke9

"There is an expanding frontier of ignorance." -- Richard Feynman

"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened." -- Matthew 7:7-8

"To every thing there is a season, and a time to every purpose under the heaven: A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted; A time to kill, and a time to heal; a time to break down, and a time to build up; A time to weep, and a time to laugh; a time to mourn, and a time to dance; A time to cast away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing; A time to get, and a time to lose; a time to keep, and a time to cast away; A time to rend, and a time to sew; a time to keep silence, and a time to speak; A time to love, and a time to hate; a time of war, and a time of peace." -- Ecclesiastes 3

 
well, a blop of plasma wqould still be visible, but i know most wepaons should be insvible, but hey, i would a lot rather be shooting something i can see then invisible super realistic wepaons.

and invisible weapons should be easy to make, just a pain in the *** to use though, aiming will be very, very hard.
just another newbie without any modding, FREDding or real programming experience

you haven't learned masochism until you've tried to read a Microsoft help file.  -- Goober5000
I've got 2 drug-addict syblings and one alcoholic whore. And I'm a ****ing sociopath --an0n
You cannot defeat Windows through strength alone. Only patience, a lot of good luck, and a sledgehammer will do the job. --StratComm

 

Offline petmar

  • 24
    • http://web.njit.edu/~pmm4/
Quote
Originally posted by kasperl
well, a blop of plasma wqould still be visible, but i know most wepaons should be insvible, but hey, i would a lot rather be shooting something i can see then invisible super realistic wepaons.

and invisible weapons should be easy to make, just a pain in the *** to use though, aiming will be very, very hard.


That's why I think they should be used under the higher difficulty levels. However, the plasma idea works, as would ion and magnetic field perpetuators (advanced rail gun designs).
"And it truly is the most godawful looking thing you will ever see in FreeSpace short of an entire TC of untextured superpowerful cubes named 'TeH DeStRoIeRR!!!!11!1!'" -- Stryke9

"There is an expanding frontier of ignorance." -- Richard Feynman

"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened." -- Matthew 7:7-8

"To every thing there is a season, and a time to every purpose under the heaven: A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted; A time to kill, and a time to heal; a time to break down, and a time to build up; A time to weep, and a time to laugh; a time to mourn, and a time to dance; A time to cast away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing; A time to get, and a time to lose; a time to keep, and a time to cast away; A time to rend, and a time to sew; a time to keep silence, and a time to speak; A time to love, and a time to hate; a time of war, and a time of peace." -- Ecclesiastes 3

 

Offline Stryke 9

  • Village Person
    Reset count: 4
  • 211
No.

You ever played a sim with invisible bullets? I bet not. Wanna know why? They suck ass. It's ugly as ****, and that's the kind of **** involving those land whales you see at McDonald's. It looks like the game was done by a four-year-old, makes it hard to aim while in a close dogfight, means that you can't see what's going on at any given minute in combat, and is frickin' hideous. All right? Realism is one thing, but if you want to take it to the extent where it detracts from gameplay, go play Orbiter.

Fact, with a little model tinkering right now you can see it yourself. And it truly is the most godawful looking thing you will ever see in FreeSpace short of an entire TC of untextured superpowerful cubes named "TeH DeStRoIeRR!!!!11!1!"
« Last Edit: May 08, 2003, 03:31:42 pm by 262 »

 

Offline petmar

  • 24
    • http://web.njit.edu/~pmm4/
As I had stated earlier... that's why I think they should specifically be said to be rail-based or plasma/ion-based guns.
"And it truly is the most godawful looking thing you will ever see in FreeSpace short of an entire TC of untextured superpowerful cubes named 'TeH DeStRoIeRR!!!!11!1!'" -- Stryke9

"There is an expanding frontier of ignorance." -- Richard Feynman

"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened." -- Matthew 7:7-8

"To every thing there is a season, and a time to every purpose under the heaven: A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted; A time to kill, and a time to heal; a time to break down, and a time to build up; A time to weep, and a time to laugh; a time to mourn, and a time to dance; A time to cast away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing; A time to get, and a time to lose; a time to keep, and a time to cast away; A time to rend, and a time to sew; a time to keep silence, and a time to speak; A time to love, and a time to hate; a time of war, and a time of peace." -- Ecclesiastes 3