Problem with the playerController

[Julio Jerez]

are you using the controller already in core 300?
if so the idea is that the controller will resolve the collision himself, by adding the impulese to the dynamics body.
Kinematic bodies are awere of all other kinamatic and dynamics bodies in teh scene, and they all contacts, so do dynamics bodies, it is just the dynamics bodies ignore the contact.
I have not demostarted that part yet in order of not to make to complex yet but all of the callbacks are in the controller but they are empty.

for what I get from your post, you are talking of and evasion move that the player should do when a body is going to hit him but I am not sure..
can I see a video? of what you have so that I have and idea of how to complete the demo with interation with other dynamics bodies?

[FSA]

OK. PlayerController works. I think i also have this problem. When a body falls onto the player body nothing happend. It falls through the player body. I've made a picture.

[Julio Jerez]

For the player controller interation with other bodies, I was leaving that for the Advance controller.

Bascially the interation should happens on the PreUpdate callback oft the controller, but I left that empty for now.

I guess I can add a basic a behavior that apply an impulse to the incoming body. But in my experience that approach never satisfy every one.
for that Newton core 300 has the Newton AI library, which is a state machine and will have navigation and a closest distance calculation for implemeneting characters avoidance or character salutation, on that sort of stuff base on state and a graph.

bascially the play handle the collision, bu the elegant thing of a player controller is to make teh play smart enough that he does not rely in collision to navigate a map.

can you guy make a list of default behavior you would like to see on a player controller?

[Neo]

Sorry for my late reply, my domitory shut the electricity during the night...
here's the video:
that sexy girl model is the player controller, I gave her a constant speed, and I'm controlling the tank
video here
At first, I let the player stand still (set speed to 0), It should be pushed away by my tank, but my tank go through it...
Then, I gave a constant speed to the player, it was indeed blocked by tank...but when I tried to use my tank to push it, they overlaped

[Neo]

Well, for the default behavior of a player controller, I guess
stop,walk,jump and crouch is enough

[Julio Jerez]

I can not see the movie, can you make avi, or mpeg

Well, for the default behavior of a player controller, I guess
stop,walk,jump and crouch is enough

it does that, chouch in not exposes yet but basically is just using the shape scale functionality, I will add that next.

[Julio Jerez]

At first, I let the player stand still (set speed to 0), It should be pushed away by my tank, but my tank go through it...(

I will add that as defualt behavior, howver that's not alway a well define preposition, what if the player is against a wall and the tank pushes him against the wall, but he cannot move any more, what should happen them?

[Neo]

what if the player is against a wall and the tank pushes him against the wall, but he cannot move any more, what should happen them?

neither of them can move....Just as 2 dynamic bodies do

[Neo]

I can not see the movie, can you make avi, or mpeg

Ok, it took me long time to re-upload(only 17mb though)
Here's new video.

[Julio Jerez]

Oh I see, I can solve that very eassy.

also hwo are yo umaking you tank? after I comple the wheel vehicle, I am also adding a thack vehicle that will look like this.


I mean for real in game, also teh ineface is very similar to the Player controller.

[Neo]

Oh, I fear that my computer can not run that smoothly, so I'm using the 'inverse conveyor belt', which is mentioned in the a post long time ago, using material system to move.

[Julio Jerez]

That ok the vehicle controller is lighwaigh vehicle, more expensive tha a raycast, bu much cheaoed that a full mutirigid body vehicle.
it should work on any core duo, or moder AMD CPU, what do you have?

but let us not get ahead of ourselft, I still need to solev teh player, and the vehicle first, then we tlak again when I have a tank demo to show.

[Neo]

There's some coordinate error bitween visual object and player controller, later I found that.
Controller is on the floor while visual object 'sank' into the floor a quarter...
Previously, using CreateCustomePlayerController, I can solve it by set translation part of the matrix before create the cylinder.
However, this time, when I turn to CuntomPlayerControllerMananger, change the translation part makes no difference

BTW, how to modify the front direction of the controller? My front direction is z aixs, but change the matrix didn't work...

[Julio Jerez]

There's some coordinate error bitween visual object and player controller, later I found that.
Controller is on the floor while visual object 'sank' into the floor a quarter...
Previously, using CreateCustomePlayerController, I can solve it by set translation part of the matrix before create the cylinder.
However, this time, when I turn to CuntomPlayerControllerMananger, change the translation part makes no difference : .

The origin of the controller is the lower bottom the player high, is not that what everyone uses? I can make that an option, but I found that most people prefer it that way.
if you can not make you player with the origon at the lower bottom, I can add a funtion to set the origin. Bu I thonk it is much eassy to simpler to savethe play with it origon on the righ place.

BTW, how to modify the front direction of the controller? My front direction is z aixs, but change the matrix didn't work...

the function
CustomPlayerControllerManager::CustomController* CustomPlayerControllerManager::CreatePlayer (dFloat outerRadius, dFloat innerRadius, dFloat height, dFloat stairStep, const dMatrix& localAxis)
take the local axis of the player as an argument, in the demo I use x as front vector

Code: Select all

      // now make a simple player controller,
      dMatrix playerAxis;
      playerAxis[0] = dVector (0.0f, 1.0f, 0.0f, 0.0f); // the y axis is the character up vector
      playerAxis[1] = dVector (1.0f, 0.0f, 0.0f, 0.0f); // the x axis is the character front direction
      playerAxis[2] = playerAxis[0] * playerAxis[1];
      playerAxis[3] = dVector (0.0f, 0.0f, 0.0f, 1.0f);

if you want it to move along z as principal axis, you can do this

Code: Select all

      // now make a simple player controller,
      dMatrix playerAxis;
      playerAxis[0] = dVector (0.0f, 1.0f, 0.0f, 0.0f); // the y axis is the character up vector
      playerAxis[1] = dVector (0.0f, 0.0f, 1.0f, 0.0f); // the x axis is the character front direction
      playerAxis[2] = playerAxis[0] * playerAxis[1];
      playerAxis[3] = dVector (0.0f, 0.0f, 0.0f, 1.0f);
      // make the player controller, this function makes a kinematic body
      m_controller = manager->CreatePlayer(radius, radius * 0.5f, height, height * 0.33f, playerAxis);

[Neo]

if you want it to move along z as principal axis, you can do this

Code: Select all

      // now make a simple player controller,
      dMatrix playerAxis;
      playerAxis[0] = dVector (0.0f, 1.0f, 0.0f, 0.0f); // the y axis is the character up vector
      playerAxis[1] = dVector (0.0f, 0.0f, 1.0f, 0.0f); // the x axis is the character front direction
      playerAxis[2] = playerAxis[0] * playerAxis[1];
      playerAxis[3] = dVector (0.0f, 0.0f, 0.0f, 1.0f);
      // make the player controller, this function makes a kinematic body
      m_controller = manager->CreatePlayer(radius, radius * 0.5f, height, height * 0.33f, playerAxis);

Yeah, It's actually what I did...But it didn't work. Previously, when I press the forward buttom, my player moves towards left. After modify the matrix like the one above, It still move toword left...