Problem with capsule - controller

maxest · 02-05-2009 08:20 PM

I'm trying to configure capsule controller to work in my own fashion but I can't get it. First of all when I try to create a capsule with radius greater than 1.0 I get an error while the application is loading syaing that I specifiec invalid data. It happens to "all" capsules (not only for those being created for controllers)
The second problem is with updating the controller. I don't know why but the velocity I pass as the first parameter seems to be scaled down. When I pass, for example, Vec(1,0,0) the capsule is moving very slow, whereas other objects with the same velocity move as they should.

**Esenthel** · 02-05-2009 08:53 PM

Hello,

1. capsule's radius cannot exceed or be equal to capsule's height/2,
if it exceeds the value then the capsule is invalid

in Esenthel Engine capsule's height means the total height

for example a capsule with total height=1 and radius=0.5, is not a capsule but it is a ball

let me know if you'll need more explanations on it

2. have you checked "physics/controllers" tutorial?
could you say what's different in updating the controller in your codes than in the tutorial code?

Thanks!

maxest · 02-05-2009 09:17 PM

I've taken a look at the controllers tutorial but can't find the solution there.
Take a look:

Code:

    Physics.sim().get();

    Vec vel(1,0,0);

    ctrl.update(Vec(1,0,0), Kb.shift, Kb.bp(KB_SPACE) ? 3.5 : 0);

    Matrix posMatrix, rotMatrix, s;

    s.setScale(0.01f);

    static Vec pos(0,0,0);

    pos.x += 1;

    posMatrix.setPos(pos);

    rotMatrix.setRotateY(-camera.horizontalAngle + PI/2.0f);

    dragonSkeleton.clear();

    dragonSkeleton.animate("data/meshes/test/Anim-1.anim", Tm.time());

    dragonSkeleton.updateMatrix(s * rotMatrix * posMatrix);

The code above states that both, controller and dragonSkeleton, should move with exactly the same velocity, yet they don't.

Besided, is there a way to get/set controller's direct position?

**Esenthel** · 02-05-2009 09:36 PM

you are forgetting about time

this is ok
ctrl.update(Vec(1,0,0), Kb.shift, Kb.bp(KB_SPACE) ? 3.5 : 0);

but when you change position according to velocity
you don't do pos.x += 1;
but you do pos.x += 1 * Tm.d();

change of position in frame is equal to velocity * time delta

maxest · 02-05-2009 09:48 PM

Now it's ok. Imho you unnecessarily made inner multiplication of controller's velocity by delta time. What if I don't want my game to run at the same speed on every machine? pfft

Can I manually set/get controller's position?

**Esenthel** · 02-05-2009 09:53 PM

Quote:Imho you unnecessarily made inner multiplication of controller's velocity by delta time.

sorry, but you're wrong

Quote:What if I don't want my game to run at the same speed on every machine?

this doesn't make sense

Quote:Can I manually set/get controller's position?

void Controller::actor.pos(Vec &pos);
Vec Controller::actor.pos();

maxest · 02-05-2009 10:51 PM

Quote:sorry, but you're wrong

After short thought I say you're right smile

. I use such a small subset of Esenthel's functionality that I forgot it's the engine, not framework smile

Quote:void Controller::actor.pos(Vec &pos);
Vec Controller::actor.pos();

Quite obvious though smile

Thanks for help

Problem with capsule - controller
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