var speed = 5;   // play with 5
var worldCentre;

function main()
{
   level_load("yourLevel.wmb");
   wait(2);

   vec_set(worldCentre,vector(0,0,0));
   mouse_mode = 1;
	
   while(1)
   {
	mouse_pos.x = pointer.x;
	mouse_pos.y = pointer.y;
		
	vec_to_angle(camera.pan,vec_diff(temp,worldCentre,camera.x));
		
	// zoom in/out
	camera.arc += mickey.z * speed * time_step;
	camera.arc = clamp(camera.arc,10,100);
		
	// pan left/right
	if (mouse_right)
	{
	   vec_rotate(camera.x,vector(mouse_force.x * speed,0,0));
	   vec_add(camera.x,worldCentre);
	}
		
	// Orbit? don't know how do you achieve this,
        // so this part maybe not exactly what you want.
	// The camera will orbit around the world center vertically.
        if (mouse_middle)
	{
	   vec_rotate(camera.x,vector(0,speed * time_step,0));
	   vec_add(camera.x,worldCentre);
	}
		
	wait(1);
   }
}

Quote:

---

You're lucky, I've a little free time today.

---

var worldCenter;

function main
{
	
   level_load ("cam.wmb");
   wait(2);
   vec_set(worldCenter,vector(-205, 0, 42));
   mouse_mode = 1;

   while(1)
   {
  
	if(mouse_middle == 1)	// Orbit with middle mouse
	{
	camera.pan += mouse_force.x * 20 * time_step;	// mouse movement changes PAN 
	camera.tilt += mouse_force.y * 20 * time_step;	// mouse movement changes TILT
	}
			
	if(mouse_right == 1)		// Pan with right mouse
	{			
	worldCenter.x -= mouse_force.y * 40 * time_step;
	worldCenter.y += mouse_force.x * 40 * time_step;			
	camera.x = worldCenter.x;
	camera.y = worldCenter.y;
	}
		
	if(mickey.z != 0)	// zoom with mouse wheel
	{
	vec_diff(temp,target.x,camera.x);
	vec_scale(temp,((mickey.z * 1)/480));
	vec_add(camera.x,temp);
			
	worldCenter.x = camera.x;
	worldCenter.y = camera.y;
	worldCenter.z = camera.z;
	}

   	mouse_pos.x = mouse_cursor.x;	// update mouse position.
   	mouse_pos.y = mouse_cursor.y;	// update mouse position.

	wait(1);
   }	
}

Quote:

---

After pressing the right mouse button, the camera and the center of the screen
(or the focal point) should pan in x and y, following the mouse movements.

---

I've read this sentence several times still don't really get what you
want. Is it move the camera left/right/forward/backward and still looking at
worldCenter?

Have you already solved the problem of zoom in/out and orbit the camera?

Sorry if I'm misunderstanding you, it's been 3:00AM here, I need
some sleep.

if(mouse_right == 1)		// Pan with right mouse
{
   camera.x -= mouse_force.y * 40 * time_step;
   camera.y += mouse_force.x * 40 * time_step;
}

var camPos;
.....
.....
vec_set(camPos,camera.x);  
while(1)
{
  ......
  ......

  if (key_SPACE)
  {
      vec_set(camera.x,camPos);
  }
}

if(mouse_right == 1)		// Pan with right mouse
{
   vec_diff(temp,worldCenter.x,camera.x);
   camera.x -= mouse_force.y * 40 * time_step;
   camera.y += mouse_force.x * 40 * time_step;
				
   worldCenter.x = camera.x + temp.x;
   worldCenter.y = camera.y + temp.y;
   worldCenter.z = camera.z + temp.z;
}

Quote:

---

Morning Nice diagram also.

---

Thanks!

Ok, I thought of a good example of the kind of camera movement
I was hoping to achieve:

The 3D view in WED!
The camera control in there is almost(!) exactly what I'm looking
for. (Should've thought about that sooner..)

When you press the right MB, the camera pans left/right (and for some
reason up/down instead of along the Y direction).
When you press the right MB + ALT, the camera rotates around the center
of the screen.
That's what I'm looking for (except using the middle MB for rotation
and panning with the right MB along X and Y).
The wheel should zoom in/out.

The reason why I need help with this is that most of the camera tutorials I
looked at always have the camera following a player entity, and that's just
not what I'm looking for.

This can't be that hard to code, can it?