[SA] Object angle based on target position

[In45do]

I'm having a hard time how to make object looking at target position. Can someone tell me step by step to make it happen?

[ZAZ]

what should be the target position ?

do you mean the aim point?

btw. post your script

Edited October 24, 2018 by ZAZ

[In45do]

Let say my target is a vehicle with its x,y,z coord and I have my object randomly placed.

 

How do I make this object to look at vehicle coordinates? I was thinking to use opcode 0177 to set my object's angle but I don't know how to convert vehicle's position into angle variable.

Do you have an alternative way to make it happen?

[ZAZ]

you can calculate it with opcode 0604: get_Z_angle_for_point

[In45do]

00AA: store_car [email protected] position_to [email protected] [email protected] [email protected]
0604: get_Z_angle_for_point [email protected] [email protected] store_to [email protected]
0177: set_object [email protected] Z_angle_to [email protected]

Am I doing it right? It's changing angle but it doesn't looking at the target.

[Strs]

be more specific what you want

the way you showing this part of your script 

this is the way it should be

 

0174: [email protected] = car [email protected] Z_angle
0177: set_object [email protected] Z_angle_to [email protected]

 

if it is not what you looking for .. then ask me i have other way to set object the way you want 

Edited October 26, 2018 by Strs
clarifying

[In45do]

It basically copying target angle into object angle. The way I want it is to make this object looking at target position.

[Strs]

target target what target ? you are the one who targeting some one or somewhere or some one targeting you ? be more specific you trying to make missile mod ?

if yes ill give you whole script and you can edit or do what ever you want to do

https://youtu.be/URa2ch1lXk0

[ZAZ]

On 10/26/2018 at 10:16 AM, In45do said:

00AA: store_car 0@ position_to 1@ 2@ 3@
0604: get_Z_angle_for_point 1@ 2@ store_to 3@
0177: set_object 4@ Z_angle_to 3@

Am I doing it right?

No.

To calculate an angle requires 2 points (4 coords), x,y of object and x,y of car

But you can enter only 1 point (2 coords) to opcode 0604: get_Z_angle

So what do we need to do?

We need to bring the constellation in relation to the game center 0.0

 

subtract car_position from car_position = 0.0

subtract car_position from object_position = 2 coords for opcode 0604: get_Z_angle

 

test the script below, consider that it use player position instead car position

 

{$CLEO .cs}
:Object_rotate
thread 'OBJROT'

// 1581, keycard, 

while true
wait 0
    if
        0256: player $PLAYER_CHAR defined
    then
        if
            0AB0:   key_pressed 8//-----------------------press Backspace
        then
            0247: request_model 1581
            038B: load_requested_models 
            04C4: create_coordinate 11@ 12@ 13@ from_actor $PLAYER_ACTOR offset 0.0 3.5 0.0
            0107: 0@ = create_object 1581 at  11@ 12@ 13@

            while 0256: player $PLAYER_CHAR defined
                wait 0
                04C4: create_coordinate 11@ 12@ 13@ from_actor $PLAYER_ACTOR offset 0.0 0.0 0.0
                0400: store_coords_to 21@ 22@ 23@ from_object 0@ with_offset 0.0 0.0 0.0
                0063: 21@ -= 11@ // (float) 
                0063: 22@ -= 12@ // (float) 
                0604: get_Z_angle_for_point 21@ 22@ store_to 30@
                0453: object 0@ set_rotation  0.0  0.0 30@
                if  or
                    8474:   not actor $PLAYER_ACTOR near_object_in_cube 0@ radius 100.0 100.0 100.0 flag 0
                    0AB0:   key_pressed 48// ------------ 	0 key
                then
                    break
                end
            
            end
            0108: destroy_object 0@
        end
    end
end

 

Edited October 27, 2018 by ZAZ

[In45do]

It worked, thanks alot ZAZ! It's direction was flipped so I added 180.0 and it finally facing the target. Although I don't understand why did you add [email protected] = 0.0 in that script.

[ZAZ]

15 hours ago, In45do said:

I don't understand why did you add [email protected] = 0.0 in that script.

ups, useless, maybe a leftover from copying