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Author Topic: Vehicle speed/velocity. (3 messages, Page 1 of 1)
Moderators: Dennis

Bungie LLC
Joined: Dec 29, 2013

friendly neighborhood contrarian funposter


Posted: Jul 22, 2015 02:28 AM    Msg. 1 of 3       
I have a question regarding the maximum speed and acceleration values for Halo's vehicles.

In what way are these values measured? I know they are apparently represented as a sort of ratio between 0 and 1, but how does one go about figuring out what each of these speeds translate to in regards to actual real-world measurements?

For instance, the in-universe maximum speed of a generic M12 Warthog is 125 km/h. How would one go about appropriating this speed accurately into the warthog's maximum forward speed? I assumed that the velocities may or may not have had something to do with world units per second, but that doesn't seem to be the case:

1 km/h = 0.277773 m/s
125 km/h x 0.277773 m/s = 34.72225 m/s
34.72225 m/s ÷ 3.05 m (which is the equivalent to 1 Halo world unit) = 11.384344 wu/s

Instead of being something easily decipherable, like a velocity measurement in world units per second, the value actually reads as "0.275" for the stock warthog.vehicle, which isn't anywhere close to the converted ~11 wu/s.

Does anyone have any information on what these maximum speed value ratios represent, and how they could be accurately measured? It would be very helpful.


RadWolfie
Joined: Dec 24, 2013

Programmer


Posted: Jul 23, 2015 01:12 PM    Msg. 2 of 3       
To me, it all depends on the size of the player model. You can use it to translate player model's height units to feet and make the measurement from there. (It can be variety depending on map maker design it to be that way.)

So, as for stock. Continue read below.

http://hce.halomaps.org/hek/references/general/halo_player_stats.html

Quote from link above.

Quote: As a reference, the Master Chief is approximately 7 feet tall.

This makes the unit scale approximately 10 units = 1 foot or about 1 unit = 1.2 inches.


So, 2.13 m = 6.988189 ft which is about 7 feet. In units’ format, it will be 69.88189 units for master chief model.

To the point, meter translate to unit... it is 1 m = 3.28084 ft = 32.80840 units.

1 km = 1000 m = 3280.84 ft = 32808.4 units

In final result 32808.4 units per hour for 1 km/h. (yes I know it's off topic yet relative to first equation.)

Hmm... I think you would want to reverse the method plus use a stopwatch to time a warthog to be sure it's accurate?

P.S. your first m/s conversion is incorrect. It should be 0.277778 m/s since it is infinite after the 7's.

New info: if the warthog is 11 wu/s and only have the ratio of 0.275 value. Perhaps you can divide 0.275 and 11 wu/s then receive "40" wu/ratio (1.0 ratio).

Hope this helps... somehow to you.


Bungie LLC
Joined: Dec 29, 2013

friendly neighborhood contrarian funposter


Posted: Jul 23, 2015 06:26 PM    Msg. 3 of 3       
Helpful or not, I appreciate the response nonetheless. I'll probably have to look into this further and see if I can't come to some other conclusion.

Also, as for any mathematical errors you may have encountered, the reason being is I'm using a really cheap 4-function Staples calculator that can barely do taxes or exchanges, or anything like that. I would have used a scientific calculator of mine to do all the math, but I spilled a bunch of root beer in it about a month ago :(

The calculator I'm using probably just rounded up the answers to a certain degree. I appreciate the concern, though. It's always good to have another's input and scrutiny.

 

 
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