1138 replies to this topic

[xsonicvision]

Hi there, I have a question, and i need a little help. I've just started using extremephysics, I think its amazing, I'm just not very familiar with the language.

For the rolling ball example, i would like to set the angle of the sprite to the angle at which the ball is moving if possible.

I've also noticed on the testbed example in test number two (and all other tests i believe) when i activate the drawing debug for velocity, in pink it shows me the angle that im looking for, but i can't seem to figure out which variable it is??
Can some one help me please?

I found this but it doesnt seem to work

dir = point_direction(0,0,ep_body_get_xvel_center(global.world,body),ep_body_get_yvel_center(global.world,body)); // 'direction'sp = point_distance(0,0,ep_body_get_xvel_center(global.world,body),ep_body_get_yvel_center(global.world,body));

i read through the topic, its been brought up a couple times and i saw you posted a code that worked in that instance but the code was removed
btw thanks maarten your engine is a miracle

Edited by xsonicvision, 19 July 2012 - 01:18 AM.

[Maarten Baert]

Sorry for the late reply, I was on holiday .

How do you use the joints?
I'm trying to have one object dangle from another object, and I can't get it to work.

Have you read the tutorial?
http://www.maartenbaert.be/extremephysics/tutorials/joints/

Hi there, I have a question, and i need a little help. I've just started using extremephysics, I think its amazing, I'm just not very familiar with the language.

For the rolling ball example, i would like to set the angle of the sprite to the angle at which the ball is moving if possible.

I've also noticed on the testbed example in test number two (and all other tests i believe) when i activate the drawing debug for velocity, in pink it shows me the angle that im looking for, but i can't seem to figure out which variable it is??
Can some one help me please?

I found this but it doesnt seem to work

dir = point_direction(0,0,ep_body_get_xvel_center(global.world,body),ep_body_get_yvel_center(global.world,body)); // 'direction'
sp = point_distance(0,0,ep_body_get_xvel_center(global.world,body),ep_body_get_yvel_center(global.world,body));

i read through the topic, its been brought up a couple times and i saw you posted a code that worked in that instance but the code was removed
btw thanks maarten your engine is a miracle

The code you posted is exactly what you asked, it should work ...

[PoniesForPeace]

Hi I'm using Extreme Physics for a project and I am getting lag spikes at random times. They last for about a minute and go away. I am trying to rule things out but I'm not really getting anywhere. Do you know if ExtremePhysics would have anything to do with it?

Here is the topic if you want to know more...http://gmc.yoyogames.com/index.php?showtopic=551947&st=0&p=4066847&fromsearch=1&#entry4066847

Edited by PoniesForPeace, 25 August 2012 - 04:17 AM.

[Maarten Baert]

I've never seen that happen before with ExtremePhysics, except when you create lots of new bodies at the same time, but that's not what's happening here I think. I will reply in your thread as I don't think this is caused by ExtremePhysics.

[PoniesForPeace]

I've never seen that happen before with ExtremePhysics, except when you create lots of new bodies at the same time, but that's not what's happening here I think. I will reply in your thread as I don't think this is caused by ExtremePhysics.

Yes I don't think it was caused by ExtremePhysics either I think my laptop was acting up.

[shahrooz232]

This is awesome ! thanks for your hard work. this is the best physics engine I've ever seen in game maker.

Edited by shahrooz232, 04 September 2012 - 09:48 AM.

[Snoutmol]

I've been trying to use this but keep coming up with a lot of problems...
Before I attempt to resolve them, does ExtremePhysics work on GM4Mac?

Nevermind I think I figured it out. I was just a little overwhelmed by all the files that are installed and didn't know that all I had to do was add the .gex extension. Plue the examples don't work in GM4Mac.

Edited by Snoutmol, 04 September 2012 - 12:28 AM.

[fantastichumore]

I have trouble with this!

global.world = ep_world_create();

This function doesn't go 'global' it only works when its in the create of a rig doll or body or something. and I have no idea why :/
After I do it in another way, the game crashes because there are to much worlds/bodies? (

Please help me I'm really frustrated

Edited by fantastichumore, 04 September 2012 - 09:44 AM.

[Maarten Baert]

I have trouble with this!

global.world = ep_world_create();

This function doesn't go 'global' it only works when its in the create of a rig doll or body or something. and I have no idea why :/
After I do it in another way, the game crashes because there are to much worlds/bodies? (

Please help me I'm really frustrated

I need more information than that to help you. The code you posted should be in the create event of your controller, your controller should have the highest depth of all objects, and you should place the controller in your room FIRST, before any other objects. If that doesn't solve your problem, post more code .

[icuurd12b42]

I have trouble with this!

global.world = ep_world_create();

This function doesn't go 'global' it only works when its in the create of a rig doll or body or something. and I have no idea why :/
After I do it in another way, the game crashes because there are to much worlds/bodies? (

Please help me I'm really frustrated

1) Make a boot room, empty, first in the GM room resource
2) Make a persistent main controller, drop it in that room
3) On GAME start event, init the system (load the dll), create the world, create all your game global variables there as well, it's a good place for them
5) The last line of your game start event, put room_goto_next()
4) On Game end event, clean up the world, unload the dll

The controller will stick with you for the duration of the game. It will catch the game start end event because it's in the first room. and it will catch the game end event when you quit or perform a game_restart() because it follows you through all the rooms.

You should no longer have trouble with objects trying to use the world in their create event in the other rooms.

[kayla15]

Hello, I'm making a 3d car racing game. My main problem is how will the other cars (enemy/computer) automatically rotate on every turn. It follows the path but it stays only in one angle. I've executed a code on Step event image_angle=direction+180; but it doesn't work. The car follows the path but cannot rotate every turn. How can I fix this? Please help me. I need to finish my game ASAP because it is our project in school and due date is near. Thank you. Hope someone will respond

[PoniesForPeace]

Hello, I'm making a 3d car racing game. My main problem is how will the other cars (enemy/computer) automatically rotate on every turn. It follows the path but it stays only in one angle. I've executed a code on Step event image_angle=direction+180; but it doesn't work. The car follows the path but cannot rotate every turn. How can I fix this? Please help me. I need to finish my game ASAP because it is our project in school and due date is near. Thank you. Hope someone will respond

Are you using Extreme Physics()? You have to use a function called ep_body_get_rot().

[PoniesForPeace]

Is this compatible with Studio?

[Maarten Baert]

I assume it is for Windows, but debug draw may not work (studio uses the new runner IIRC). Maybe for mac too - check the ExtremePhysics for Mac topic. Other platforms, no.

[THE_GAME_EDITOR]

This is pretty cool. But can't this dll make use of collision masks?
Because I'm using curved terrains and it's a hard job to build it out of vertex.

[PoniesForPeace]

This is pretty cool. But can't this dll make use of collision masks?
Because I'm using curved terrains and it's a hard job to build it out of vertex.

Haven't tried it yet but in the OP there is a program that might help: http://sprites.3dn.r...ygonCreator.rar

[Maarten Baert]

You could also try box chains. I added them specifically for curved terrain.

[THE_GAME_EDITOR]

PoniesForPeace
Thanks for the program. It's fairly easy to recreate the sprite now.

Maarten Baert
What are box chains?

[PoniesForPeace]

PoniesForPeace
Thanks for the program. It's fairly easy to recreate the sprite now.

Maarten Baert
What are box chains?

Don't thank me, thank the guy who made it. I just copied it from the OP...

[Maarten Baert]

What are box chains?

There's a box chain example in testbed.gmk, and another one is called rolling_ball.gmk. Just look at those and you will see what it does.