36 replies to this topic

[Sobakasu]

Thanks to the training grounds, my innate curiosity and a good deal of boredom I set out to determine the formula used for PPC damage from 0-90m. Long story short I came up with:

y = x² / 810, 0 <= x <= 90

y is PPC damage and x is distance in meters.

The raw data I gathered was the number of headshots required to kill a mech at a fixed distance.

Distance - Headshots To Kill
-----------------------------------------
90m - 4
80m - 4
70m - 6
60m - 7
50m - 11
40m - 17
30m - 30
20m - 54
13m - 134

First I calculated the min and max damage per shot and then got the average of those 2 numbers which I graphed over the distance from the target. I assumed a headshot takes 33 damage because that was the number I saw most often in these forums.

What I get when graphing it out:



Based on the shape of the graph I assumed this was a y=x² type graph and the 810 divisor makes the curve hit 10 damage at 90m and keeps things nice and simple, occams razor and all that jazz. Also as a point of reference you hit about 5 damage per shot around 64m.

Link to spreadsheet with more detailed calculations


To summarize:

damage falls off exponentially not linearly below 90m
half damage at around 64m
at 10m it's about like using a machine gun

[Chavette]

Its said to be linear, same with max range damage.

[Sobakasu]

Chavette, on 19 March 2013 - 11:32 PM, said:

Its said to be linear, same with max range damage.

Did an actual dev say that? The numbers don't support a linear decrease especially how it takes over 100 shots at 13m.

[Warrax the Chaos Warrior]

Sobakasu, on 19 March 2013 - 11:38 PM, said:

Did an actual dev say that? The numbers don't support a linear decrease especially how it takes over 100 shots at 13m.

I'm fairly certain they have, couldn't tell you where to find it though.

Did you take overkill in to account when doing your calculations? Maybe instead of headshots you could use the CT of the Atlas on the training grounds and calculate based on the percentage change.

The 100 shots at 13m thing seems very strange. Maybe we have all been wrong this whole time, or maybe it's wonky hit detection... again

Edited by Warrax the Chaos Warrior, 19 March 2013 - 11:45 PM.

[Rivqua]

What they have said though is that the Testing Grounds isn't a reliable testing ground when it comes to damage application. Use a proper test in a match with a friend.

[Chavette]

here.

Thomas Dziegielewski, on 13 March 2013 - 09:15 AM, said:

I really hope this isn't about PPC min range again.

It's 90m and it decreases the damage linearly.

I shall add to Breakdown.

With your low lag PPC should hit well at range and only miss a little. And LRMs are not affected by 'netcode' issues.

A video maybe?

Edited by Chavette, 19 March 2013 - 11:46 PM.

[Sobakasu]

Warrax the Chaos Warrior, on 19 March 2013 - 11:43 PM, said:

I'm fairly certain they have, couldn't tell you where to find it though.

Did you take overkill in to account when doing your calculations? Maybe instead of headshots you could use the CT of the Atlas on the training grounds and calculate based on the percentage change.

The 100 shots at 13m thing seems very strange. Maybe we have all been wrong this whole time.

I attempted to based on my assumption of 33 damage to headshot a mech I calculated the max damage per shot to kill a mech in number of hits it took, then the min, and graphed the average of those two numbers. This obviously has a large margin of error close to 90m because of the almost 10 damage increments.

[Reani Che]

I defenitely like people, doing such work! TU!

[Mazzyplz]

if working as intended, it should be linear - yes they have stated it's linear, pretty sure about that.

if we take what smurfy's mechlab says about the damage, it's 10dmg at 90m, the minimum range, then it goes linearly down.


10 dmg at 90m
8.89 dmg at 80m
7.78 dmg at 70m
6.67 dmg at 60m
5.56 dmg at 50m
4.45 dmg at 40m
3.34 dmg at 30m
2.23 dmg at 20m
1.12 dmg at 10m
0.01 dmg at 0m

i don't know if it's rounded up or down to whole numbers though, in which case it would be,

10 dmg at 90 m
9 dmg at 80 m
8 dmg at 70 m
7 dmg at 60 m
6 dmg at 50 m
5 dmg at 40 m
4 dmg at 30 m
3 dmg at 20 m
2 dmg at 10 m
1 dmg at 0m

Edited by Mazzyplz, 20 March 2013 - 12:00 AM.

[Sobakasu]

Rivqua, on 19 March 2013 - 11:44 PM, said:

What they have said though is that the Testing Grounds isn't a reliable testing ground when it comes to damage application. Use a proper test in a match with a friend.

Granted this isn't close to a good test but in the same thread Thomas mentions it's linear some else claimed to test this in a match with a friend and it comes closer to what I get vs a linear decrease:

5 dmg @ 60m, 3.5 dmg @ 45m

I admit I haven't tested in an actual game, I'll try that when I have time.

[Mazzyplz]

Sobakasu, on 20 March 2013 - 12:02 AM, said:

Granted this isn't close to a good test but in the same thread Thomas mentions it's linear some else claimed to test this in a match with a friend and it comes closer to what I get vs a linear decrease:

5 dmg @ 60m, 3.5 dmg @ 45m

I admit I haven't tested in an actual game, I'll try that when I have time.

where do you get those numbers?
if you get 3.5dmg at 45 meters then the whole 90 would be 7 damage?
who told you it was 7?

i thought smurfy's mechlab was correct?

[VonRunnegen]

it'd only be 7 at 90 if it was linear.
This whole thread is suggesting that claim is false (Even if the devs have said it is linear it doesn't make it true.... plenty of mistakes get made!)

[Gaan Cathal]

Rivqua, on 19 March 2013 - 11:44 PM, said:

What they have said though is that the Testing Grounds isn't a reliable testing ground when it comes to damage application. Use a proper test in a match with a friend.

Ironically the thread they said this in started with the OP showing that (certain) direct fire weapons produce precisely the stated damage in the Training Grounds

[dario03]

It doesn't feel linear to me. If I'm in a light and spot a ppc boat by itself I will get about 20-50m away from it and when they hit me it doesn't seem to do much damage at all. And a even at a third damage a 6ppc stalker would jack up a light pretty good.

[armyof1]

Sobakasu, on 19 March 2013 - 11:30 PM, said:

Well that's one curvy linear graph. Since PPC is such a common weapon, I'd think a dev should take a look at that pretty quick?

Edited by armyof1, 13 April 2013 - 11:24 AM.

[Lefty Lucy]

armyof1, on 13 April 2013 - 11:23 AM, said:

Well that's one curvy linear graph. Since PPC is such a common weapon, I'd think a dev should take a look at that pretty quick?

My own testing corroborates Sobakasu's findings: damage drop off within minimum range is *definitely* not linear.

[Warskull]

The stated formula for sub 90 PPC shots is:
Dmg = 10 * (1 - [90-Rng]/90)

For quick reference:
10 dmg at 90m
7.5 dmg at 67.5m
5 dmg at 45m
2.5 dmg at 22.5m

However, this is PGI we are talking about so in reality, anything could be happening.

Edited by Warskull, 13 April 2013 - 11:48 AM.

[Team Leader]

Interesting. Keep up the good work!

[Mr 144]

It would still be nice for a least some basic in-game confirmation to make sure it's all just not training ground shenanigans. It certainly doesn't 'feel' linear...but before going gospel, further testing is required

Mr 144

[Chavette]

Would be epic if they turned out to be wrong even with a simple calculation like this... lol

Can't say I'd be surprised though.