Camera Collision + Without Digging into walls

Hey, a lot of people kept asking for a camera collision, so here is one
Code:

---

  
var Temp_distance = 0;
var Distance_traced = 0;
Function Camera_Collision()//include this in your camera code
{
	my = player;
	trace_mode = ignore_me + ignore_passable + use_box + ignore_models;//you can remove ignore_models if your level is made with a lot of models.
	vec_set(temp_distance.x, camera.x);
	Distance_traced = trace(player.x, Temp_distance.x)
	if((Distance_traced != 0)) 
	{
		Distance_traced -= .05;
		camera.x = player.x - distance_traced * cos(camera.pan)-1;
		camera.y = player.y - distance_traced * sin(camera.pan)-1;
	}
}

---

It's similar to one of the AUM's except it won't dig into walls and some modifications.

Is this meant to be a "stand script"
or to go with Template 5 or template 6?

Just curious before I try anything..





*** Teutonic Darkness ***

It should probably be added to or called from a stand-alone camera script.

Yep just make a camera that will follow the player, then include Camera_Collision(); inside your camera code.

Thanks, this is helpful, I had thought of making my own but never got around to it.

ah, it works perfect, just what i needed! thanx a lot!

Does that work for FPS? Or just following cam?

hmm, I only tested it for following camera. For Fps your character itself should create a sort of collision for the camera. If you have any problems with that let me know.

thanks !
realy needed a decent one of these...

Hey folks, because of everyone using models for levels now. Here is an updated code that will work with model collision as well, thanks to Dima.
Code:

---

  
Function Camera_move()
{
	while(1)
	{
		c_rotate(my, vector(-1 * (11 * mouse_force.x * time - 1.5 * ((key_a - key_d) + (key_cul-key_cur))),0,0),  glide+Use_box);
		camera.x = player.x - camera_distance * cos(player.pan); 
		camera.y = player.y - camera_distance * sin(player.pan); 
		camera.z = player.z + camera_height;
		camera.pan = player.pan;
		camera.tilt += 8 * mouse_force.y * time;
		camera_distance = min(max(camera_distance,5),500); 
		Camera_collision();
		wait(1);
	}
}

Function Camera_Collision()
{
	my = player;
	Distance_traced = c_trace(player.x, camera.x,ignore_me + ignore_passable+use_box);
	if((Distance_traced != 0)) 
	{
		Distance_traced -= 5;
		camera.x = player.x - distance_traced * cos(camera.pan);
		camera.y = player.y - distance_traced * sin(camera.pan);
	}
}

---

Hey, it seems to me to be a much better idea to program something like this on your own and gain experience... Oh well, just a thought.

I agree trial and error is good for learning, but for some of those people who don't have time or are not scripters this would be good. This way you could also learn how you trace from the player to the camera.

Bump if anyone still needs a camera code with entity collision.

THANK YOU VERY MUCH FOR THIS CODE - ITS PERFECT
i modified it this way, i think you will like it:

define _camera_dist_min, 64;
define _camera_dist_max, 512;

var camera_dist = _camera_dist_max;

function Camera_Collision()
{
var camera_dist_traced;
trace_mode = ignore_me + ignore_models + ignore_passable + use_box;
camera_dist_traced = trace(player.x, camera.x);
if(camera_dist_traced != 0)
{
camera.x = player.x - camera_dist_traced * cos(camera.pan) * cos(camera.tilt);
camera.y = player.y - camera_dist_traced * sin(camera.pan) * cos(camera.tilt);
camera.z = player.z - camera_dist_traced * sin(camera.tilt);
}
}

function camera_move
{
while(1)
{
if(mouse_left)
{
camera.pan -= 50 * mouse_force.x * time;
camera.tilt = min(max(ang(camera.tilt + 50 * mouse_force.y * time),-90),15);
}

camera_dist = min(max(camera_dist + mickey.z * time,_camera_dist_min),_camera_dist_max);

camera.x = player.x - camera_dist * cos(camera.pan) * cos(camera.tilt);
camera.y = player.y - camera_dist * sin(camera.pan) * cos(camera.tilt);
camera.z = player.z - camera_dist * sin(camera.tilt);

Camera_collision();

wait(1);
}
}

while pressing mouse_left you can change the camera pan AND TILT
with mouse wheel you can change the camera dist!

i think is a littlebit more usable...