OK, another problem, but I decided to explain it here instead of creating a new topic. The question is: how can I make the cursor appear in the center of the screen after loading the level, so that its new central coordinates become the initial position of the mouse? And how can I make limits for the cursor movement on the screen?
Thank you in advance.

And again another question:
I have an entity that can roll, pan and tilt... though I can't make it rotate around its axises in the local coordinates. Like this, when the pan and roll angles equal 0, I press "w" and change the tilt rotation "vector(0, 10*timestep,0)", and the entity rotates around its y-axis... But when I roll the entity right a little by pressing "e", and then press "w" again to tilt it, it rotates still in the global coordinates so tilt upwards and not diagonally right-upward .....

With your positioning the cursor, I have no idea. But check the manual under
"mouse_mode" and it will lead you there, Im sure.

But for your entity rotating, you are wrong.
Pan, Tilt, and roll are "local" rotations, your entity is panning, tilting, and rolling
as you expect. (well, according to your last code-post it is)
BUT the camera is being moved around too, which is 'hiding' the effect.
Disable the camera code and you'll see.

The question with cursor is already solved, I don't need positioning it to the center any more...

And about rotation, I don't know why but tilt does not perform as a local rotation...Here is a sequence of screenshots for more detail:
1. all angles = 0

2. Change the tilt angle , the plane goes upward.

3. Roll the plane a little to the left

4. But when I tilt it again the plane still goes upward (solid arrows) instead of rotating along its local coordinates (dashed arrows)


Here's the code I'm using:
var rotation_coef = 10;
...
action()
while(1){
...
if (key_w) { player.tilt -= rotation_coef * time_step;}
if (key_s) { player.tilt += rotation_coef * time_step;}
if (key_a) { player.roll -= rotation_coef * time_step;}
if (key_d) { player.tilt += rotation_coef * time_step;}
wait(1);
....
}

Any ideas why ithis happens?

Have a look at the manual:
1: c_rotate with mode USE_AXIS / USE_AXISR
2. ang_add / ang_rotate

Yeah, just use c_rotate with USE_AXIS, that should do the trick. It works here...

"works here" is where? OK, never mind..... I'll try tomorrow
Well, tomorrow came earlier than I expected I tried the code, it works perfectly with USE_AXISR var mode...
I made an attempt to use the c_rotate function yesterday, though I used USE_AXIS, and it didn't work.... why the hell I didn't try the USE_AXISR instead (O_o)

Thanks to all for assistance

Another problem with global rotation...
As I understand player.tilt responds to global rotation of the player.. I've checked this by changing the tilt value in th console with running engine:
player.tilt = 0;
player.tilt = 10;
player.tilt = 50; and so on.. and the player rotated in the global coordinates
How can I define the local tilt angle of the player? I need this for an improved camera script, which depends on the tilt of the player.....