Conservation of Momentum fix 1.0.1 - Elevators fix

Kidev · **Plugin Info:**

Conservation of Momentum Fix - v1.0.1 by Kidev
A simple physic fix

Description:

Tired of getting fall damage because you jumped in an elevator? In real life, jumping in an elevator moving down or up at a constant speed will be the same as if you jumped on the floor. But in Gold Src games, it's bugged. This plugin simply fixes it.

Note:

- In some Gold Src games (like Opposing Force, in the monorail for exemple), jumping while you're in an entity moving forward will push you back. To fix this, simply replace in the source code

PHP Code:


			
new const giAxis[ 3 ] = { 0, 0, 1 };

by

PHP Code:


			
new const giAxis[ 3 ] = { 1, 1, 1 };

Known bugs:

- If you jump quickly in a moving entity (bhop), some jumps may still be bugged.

Changelog:

Code:

v1.0.1  @ 02/11/14
* Code optimized 
v1.0.0  @ 02/11/14
^ First public release

Credits:

HamletEagle - For some optimizations
fysiks - For some optimizations

Current version (stable):

zmd94 · *Last edited by zmd94; 11-02-2014 at 11:12.*

This remind me about Physic subject in secondary school.

Quote:

Originally Posted by -Kid-

In real life, jumping in an elevator moving down or up at a constant speed will be the same as if you jumped on the floor. But in Gold Src games, it's bugged. This plugin simply fixes it.

Maybe, in Gold Src games there is an external force that acted upon the system which make it bugged. ;)

Nice, -Kid-.

ezio_auditore · 11-02-2014 , 11:01 Re: Conservation of Momentum Fix

You picked a nice issue. Good job. Keep working on it.

**HamletEagle** · *Last edited by HamletEagle; 11-02-2014 at 11:27.*

Code:

for ( i = 0; i < 3; i++ )
{
        flEntPlayerIsOnSpeed[ i ] = flSpeed[ i ];
}

This should work too:

Code:

flEntPlayerIsOnSpeed = flSpeed

Also you should check if AMXX_VERSION_NUM < 183 and define MAX_PLAYERS.

GoldSrc engine has some bugs, glad to see that there are peoples which try to fix them.

Kidev · *Last edited by Kidev; 11-02-2014 at 16:55.*

Thank you all!

Quote:

Originally Posted by HamletEagle

you should check if AMXX_VERSION_NUM < 183 and define MAX_PLAYERS.

I'm modifying this right now.

fysiks · 11-02-2014 , 15:14 Re: Conservation of Momentum Fix

Quote:

Originally Posted by HamletEagle

This should work too:

Code:

flEntPlayerIsOnSpeed = flSpeed

That is not the proper way to assign arrays.

In this case, you can simply do this:

Code:

entity_get_vector(iEnt, EV_VEC_velocity, flEntPlayerIsOnSpeed);

Kidev · 11-02-2014 , 17:42 Re: Conservation of Momentum Fix

Here it is, updated.

meTaLiCroSS · 11-02-2014 , 18:55 Re: Conservation of Momentum Fix

Quote:

Originally Posted by fysiks

That is not the proper way to assign arrays.

In this case, you can simply do this:

Code:

entity_get_vector(iEnt, EV_VEC_velocity, flEntPlayerIsOnSpeed);

Can you explain why? I don't know how exactly that can be wrong also, it's correct but wrong (?)

**Arkshine** · *Last edited by Arkshine; 11-03-2014 at 05:18.*

Array assignment is valid when both arrays have the same size. This is just another compiler tip among others.

Kidev · *Last edited by Kidev; 11-03-2014 at 07:02.*

Ok it's good to know! But it wasn't needed here finally since the method I used was redundant. I changed it.