Hi,

I make a entity do a 360 roll... but if i move this one on the y axis at same time i roll it make the entity changing his z axis.. according too the roll orientation.

So i dont want the roll affect any axis move... but i want it to roll according of the pan orientation of the entity.

How can i do that?

Well.... its imposible or my question are incomprehensible?

Probably the latter..?

Perhaps you should show us your code.

Open your model in MED. How is the orentation of your model? Unless it is perfect center it will look to seem like it's moving around in a circle when spun. Thing of a ball on a string and spinning it around in a circle above your ahead. The center is your hand.

Ok there's a exemple :
----------------------------------------------------
my.pan += 3* (key_a - key_d) * time_step;
my.roll += 3* (key_d - key_a) * time_step;
speed.x += 3 * (key_w - key_s) * time_step;
speed.y += 3 * (key_z - key_c) * time_step;

c_move(my,speed,nullvector,IGNORE_PASSABLE|GLIDE)
----------------------------------------------------

When im moving on the X axis, if i change the .pan the entity now move following the pan angle... like a car...

Now there's my problem :
When im moving on the Y axis, if i change the .roll the entity now move up or down following the roll angle...

I dont want my entity to change his movement direction if i change roll angle when i move on the Y axis...I just want it to continue to move regardless the .roll angle.

so are you saying that the entity moves on the z axis only when its moving on the y axis and changing it's roll angle? Or does it appear to change on the z axis even when stationary on the y axis? If it does it while it's stationary then it has already been mentioned; the model is probably not centered properly.

maybe you should use absolute and relative positions in combinition
i think that's your problem

One problem I see is that you constantly add to your move number. It should be speed.x = 3 ...
Next is the your character will move like a car. Forward. So when pan and roll are changed so is forward. So you are moving more like a plane or space ship. To solve your pRoblem use richi's idea and some playing around.

Another idea is to record your z position before the movement and then set your mesh back to the z position.

Yea i think u right Richi i need too combine both... but i have trying a lot of thing and that not work =(

Suppose i use directly-->

my.pan += 4 * (key_a - key_d) * time_step;
my.roll += 4 * (key_e - key_q) * time_step;
my.x += 8 * (key_w - key_s) * time_step;
my.y += 8 * (key_c - key_z) * time_step;

So now when i change my PAN, it dont affect the movement direction.

But if i want the PAN affect the direction using this code, what i need to add?

Use the other vector parameter of c_move, rotated around just your pan:That's the quick and dirty version -- in the process "speed" gets modified to be the character's absolute speed, rather than relative speed, so if instead of assigning values to speed's parameters you want to do stuff gradually over time, you'll need another VECTOR so you can do vec_rotate without changing your speed VECTOR.

Jibb