Ok after getting my selectionbox done, i tried adding a marker to my character.
but i got a little confused and ended up with having a few questions about it:

1.
i dont really understand this line:
PosPointMeshY(Vec2(i ? 1 : -1, 0),terrain,&m.local_matrix.pos);
what exactly does it do? my first guess was setting the markers matrix according to the terrain mesh, but it was already set in the previous line:
m.local_matrix.setPosDir(Vec(0,0,0), Vec(0,1,0));
so.. what does it do? and what do you do if you are using an imported .world file, and not a mesh base?

2.
here's what i tried to do.. Am i totally wrong about it?

My extension of Chr:

and in my draw() function i have:

so am i totally wrong about this, and what do i need to do to make it work?

thanks in advance

-Craksy

Quote:and what do you do if you are using an imported .world file, and not a mesh base?

then please use Physics.ray for collision detecion

what do you mean? use Physics.ray()?
does PosPointMeshY(Vec2(i ? 1 : -1, 0),terrain,&m.local_matrix.pos); do collision detection?
i'm not sure i understand :/

(10-17-2009 04:32 PM)craksy Wrote:  what do you mean? use Physics.ray()?
does PosPointMeshY(Vec2(i ? 1 : -1, 0),terrain,&m.local_matrix.pos); do collision detection?
i'm not sure i understand :/

PosPointMeshY it does do collision detection but only for specified mesh (and is slower)

world creates actors for which you can use Physics.ray which is faster

ok this is how i understand it... please correct me if i'm wrong:
PosPointMeshY() do a ray test from markers position matrix, and straight down.
if it hits the terrain mesh, it sets the markers position matrix = the first argument Vec2(x, z) on the mesh surface?
im probably wrong about this, so please correct me!

anyway i still don't got a clue of how to do it with World :/

i am sorry, but could you please give me a little example?

yes you understand it correctly, search tutorials for Physics.ray

ok i tried this:

but it still doesn't show up.
what did i do wrong?

if(Physics.ray(m.local_matrix.pos, m.local_matrix.pos + Vec(0, -5, 0)))

this is wrong

then what? :/

hmm... i could really use some help :/
i supposed that its current position + negative value on the Y axis would make it go straight down.
also in my characters update function:
m.local_matrix.pos = phys_hit.plane.p;
works fine, but:
m.local_matrix.pos = T.pos();
gives some weird results... how do i make it be at my characters feet? like on the ground, and still at the characters xz position?

thanks

-Craksy

Flt x=pos.x(), z=pos.z(), y=pos.y();
Physics.ray(Vec(x,y+100,z),Vec(0,-200,0),..

plus you need to do callback to skip unwanted actors

ok i tried and this was what i ended up with
   

i suppose thats the callback thing? i need it to ignore the character itself and only register the terrain right?

but how do i do this?

Try put IndexToFlag( AG_TERRAIN ) in the end of the ray function.

Like ray( Vec(x,y+100,z),Vec(0,-200,0), PhysHit, IndexToFlag( AG_TERRAIN ));

didn't work :/
it still gives me the weird shadow thingy :/

thanks for trying though
great to see that other people than Esenthel is starting to help in the support forum (not saying that you are the only one)
hopefully with time, we will have more experienced users, so Esenthel doesn't have to do all the supporting

please experiment with the marker parameters, and show which texture image are you using for the marker