So I have now two problems.

1. At the (event_type == event_entity) the you is always null, too by collisions with entities. Which premises are for you that it will set right?

2. If the enemy looks with
vec_set(temp,you_pos);
vec_sub(temp,my.x);
vec_to_angle(my.pan,temp);
to another entity, it will done suddenly and not soft. How can I make it, that it rotate slower to the another entity?

For 1. I think you need to use event_impact,
For 2. You can do it several ways. If you want to make it look real and "organic" you need to use physics entities and apply rotational force so that the entity turns in a realistic way. Another way, which is a bit more "robotic" is to use a while-loop to change the rotation in small steps until the desired direction is reached.

1. I tested it yet with impact, but I will try it again.
EDIT: It didn't run, too. ><

2. Physics can't I use, for that my version is too low. And the other I tried, but it didn't run right. I will try it again, too. But it is nice, if someone can post me his idea.

Here is a suggested (untested) code to try. You may have to play with the numbers a bit, but it should get you started.
Code:

---

function turn_toward_target
{
	var original_direction[3];
	var new_direction[3];
	var pan_difference;
	var pan_direction;
	
	vec_set(original_direction,my.pan);
	vec_set(temp,your.pos);
	vec_sub(temp,my.pos);
	vec_to_angle(new_direction,temp);
	
	pan_difference = (360-new_direction.x) - (360-original_direction.x);
	if((pan_difference > 0) && (abs(pan_difference) < 180))
	{
		pan_direction = 1;
	}
	else
	{
		pan_direction = -1;
	}
	
	while(my.pan != new_direction.x)
	{
		my.pan += pan_direction; // adjust angle increment by multiplying with 0.1 .. 10
		wait(-time_step); // adjust turn speed by multiplying with 0.01 .. 100
		wait(1);
	}
}
  

---

Thx, but it isn't run right. The entities shivered very quick and fly 90° to many. And in my version, time_step does'nt exist.

Well, it was just a suggestion to get you started on the code . You will have to adapt it to your version and make it work for your purpose .
cheers,

ok, I will work at your script ^^

EDIT: I'm too stupid for this math. All my experiments failured.

Here are two small adjustments to the code:
1/ use time instead of time_step (which version of Game Studio do you use?)
2/ Change the line

if((pan_difference > 0) && (abs(pan_difference) < 180))
to
if((pan_difference > 1) && (abs(pan_difference) < 180))

1. Time_step I yet writed in time.

2. Ok, I will test it.
EDIT: Now the entities fly always in a circle, how they have only pan += X;

I use A6 Extra.

sry for doubleposting, but I have a new question.

Run you by events only in event-functions or by if(event_type...) in the action, too?

And the "looking slower to another entity" still didn't run, although I tried many experiments...