Mana Games

[abc010101]

CoF
CoR0
Cor1
DeltaE
SurfaceSpeed

Also, what do HiDeceleration and Speedconversion mean and why do only some courts have them ?

Thank you

[manutoo]

Hello,

read here : topic60-33563.php .

If a value is missing, then the engine uses the default internal value.

[abc010101]

Thanks for your reply, I am still a bit confused about the friction. I am trying to slow down the ball and I thought increasing the CoF would achieve this. For example in TE 2013, if you lowered friction to an extreme, the ball would slow down so much that it would stop almost completely after it bounced, which makes sense. For testing, I'm trying to get to this same point in TE4 by increasing CoF a lot but it doesn't seem to work, after 0.70 I don't notice any change in friction, even if I put a really high value.

[manutoo]

Maybe try to put a value above 1.

[abc010101]

I actually did that too :/ I even tried putring insane values like 1000000 and still no change

[manutoo]

Hum, I guess the CoF enforces physical coherence, and thus you cannot stop the ball without lowering its bounce (ie: that might be physically impossible) ; try to lower CoR, maybe it'll lower the ball's horizontal speed as well, due to that phenomenon...

[abc010101]

I'm trying to figure out how to do that. Do you know how I could try to lower the horizontal speed without the vertical speed ?

Alternatively, do you know how the friction as defined in TE 2013, relates to CoF and CoR ? I thought I might try with that but I don't know the formula

[manutoo]

The only thing you can do is raise the CoF.

The friction in TE2013 is an oversimplification of reality and thus is easier to tune, and lets you do impossible things in reality. There's no direct equivalent in TE4, as it has been replaced by the CoF.

[abc010101]

Hi Manu, I have made some discoveries. First, I see that the CoF line can be substituted for Friction, which is apparently the inverse of CoF. It seems to work just like TE 2013; if you put a really high value for Friction (or a really low value for CoF), the speed of the ball after the bounce will be ridiculously fast to the point where it is physically impossible to hit it back. So, I assumed doing the opposite (putting a really high CoF or a really low Friction) would have the opposite effect (making the ball speed extremely low after the bounce). However, this doesn't happen. After a certain point, the ball speed won't go any lower. This disparity is what confuses me so much because I can't figure out why I can make the bounce speed super fast, but not super slow. Do you have any thoughts on this ?

Is there a deeper layer in the game files where I could try my luck with modding ?

Thanks and Happy New Year!

[manutoo]

Yes, friction can still be used, so it's easier to use TE2013 court.ini. The Friction is the one for the standard ITF test (30° impact angle, IIRC) and thus is used to calculate the CoF. In the end, it changes nothing for you.

IIRC, if the ball slows down too much, it won't roll anymore but slide instead (or the opposite..? ), which means the court friction doesn't apply anymore. It's very likely the cause of the discrepancy you have noticed.

[Stellalawrence]

where can i change those values? I'm a newbie, before I just played online games at websites, hoping to get more guidance from everyone.

[manutoo]

Stellalawrence,
you'll find the Surfaces' .ini from the "Courts\Surfaces\" folder of the Modding SDK : topic60-33540.php .

[abc010101]

Hi Manu, I have one more question

1) You said we can use CoR1, CoR2... to change the CoR more specifically. But if I write for example

CoR = 0.9
CoR1 = 0.76 44

The general CoR will be 0.9 and the CoR will be 0.76 for an angle of 44. But what will happen to the angles near 44, like 43, 45, etc ? Will they be set automatically to 0.9 ? So to make the angles 43 and 45 closer to 44, do I need to write lines like CoR1, CoR2, CoR3, etc. for every angle ?

Thanks

[manutoo]

abc010101,
the game will automatically calculate the correct CoR for each angle depending on the several CoR you'll have entered ; so with your example, at 43, it'll be close to 0.76, but a bit above as CoR0 is 0.9 .

[abc010101]

Thanks Manu. One more thing, I see that in clay courts, the lines get dirtier as the set goes on and then they get cleaned up again when a set starts. Is there a way to stop them from getting cleaned ? Or to start the match with dirty lines ? I prefer them like that. Thanks