Here is the player input code.. that includes the jump as well..

code:

---

 
//----------------------Player Input-------------------------------------
function playerInput()
{
	// this function is called every frame from player player action
	// reset the force vector each frame
	force.x = 0;
	force.y = 0;
	force.z = 0;

	//allow control of ball if on the ground... 
	if (ground_dist > 0 && ground_dist < scale_dist)
	{
		if(key_cuu)
		{
			vec_set(temp.x,camera.x);
			temp.z = player.z;		
			vec_diff(force.x,player.x,temp.x); 
			vec_normalize(force,power); //force vector points from camera to player at length of power	
		}
		if (key_cud)
		{
			vec_set(temp.x,camera.x);
			temp.z = player.z;
			vec_diff(force.x,player.x,temp.x);
			vec_inverse(force);
			vec_normalize(force,power); 
		}
		if(key_cul)
		{
			vec_set(temp.x,camera.x);
			temp.z = player.z;
			vec_diff(force.x,player.x,temp.x);
			force_ang.pan = 90;
			vec_rotate(force,force_ang);
			vec_normalize(force,power);
		}
		if(key_cur)
		{
			vec_set(temp.x,camera.x);
			temp.z = player.z;
			vec_diff(force.x,player.x,temp.x);
			force_ang.pan = -90;
			vec_rotate(force,force_ang);
			vec_normalize(force,power);
		}
	}
	// add flying force here....
	if(mouse_right)
	{
		//activate current powerup here...
		//will use mousewheel to cycle powerups
		force.z = glide_power;		
		//to allow control while flying
		if(key_cuu)
		{
			vec_set(temp.x,camera.x);
			temp.z = player.z;		
			vec_diff(force.x,player.x,temp.x); 
			vec_normalize(force,power); //force vector points from camera to player at length of power	
		}
		if (key_cud)
		{
			vec_set(temp.x,camera.x);
			temp.z = player.z;
			vec_diff(force.x,player.x,temp.x);
			vec_inverse(force);
			vec_normalize(force,power); 
		}
		if(key_cul)
		{
			vec_set(temp.x,camera.x);
			temp.z = player.z;
			vec_diff(force.x,player.x,temp.x);
			force_ang.pan = 90;
			vec_rotate(force,force_ang);
			vec_normalize(force,power);
		}
		if(key_cur)
		{
			vec_set(temp.x,camera.x);
			temp.z = player.z;
			vec_diff(force.x,player.x,temp.x);
			force_ang.pan = -90;
			vec_rotate(force,force_ang);
			vec_normalize(force,power);
		}			
	}
	
	//jumping...
	if(mouse_left)
	{
		// only allow jump if on ground, not in air
		if (ground_dist > 0 && ground_dist < scale_dist)
		{
			jumping = 4;
			while(jumping>0)			
			{
				// play jump sound here
				snd_play(boing,sound_vol,0);		
				force.z = jump_power;	
				jumping-=1;
				wait(1);
			}
		}	
	}
	//force vector now contains player intention forces		
}
 

---

Jason