get closest actor camera pointing at

[gokuta]

this opcode:

0AB5: store_actor $PLAYER_ACTOR closest_vehicle_to [email protected] closest_ped_to [email protected]

gives closest actor. Not exactly what I need. How do I get actor handle, which is closest to me, but in a specific direction where I'm looking at. How to do that... need massive help on this! Any help much appreciated.

 

Most certainly will us plugin-sdk for this. Need to get camera position and camera looking-at position. Also I will need to loop through all peds and check their positions. How do I do it? So... I seriously need some help, no tutorials could be found regarding this.

Edited July 28, 2020 by gokuta

[gokuta]

alright guys, problem almost solved. Still one problem persists. Alright, so I loop through all the peds and I want to skip player character (that is myself as a player). How do I check whether character is me? For some reason `ped->IsPlayer()` returns TRUE for characters, that are not me as well.

[gokuta]

oh yas yas yaaas, one more question. How do I get camera position and vector, where camera is looking at? Cuz me tried these two `CVector m_vecAimingTargetCoors;` and `CVector m_vecGameCamPos;` but I get nonsensical results. Well, I definitely do not know what parameters meen what. No tutorials available. Anybody knows?

[gokuta]

ahh, yess yes yes... and one more question. So as far as I know (and I know nothing), I should use CCamera class to retrieve camera position. And I should not use CCam class to retrieve camera position. My opinion is based on nothing, because I know nothing. And I find absolutely nothing on the internet. No documentation, nothing at all. Any help? Which class should I use?

Edited July 29, 2020 by gokuta

[Jack]

You might wanna use these scm commands:

GET_ACTIVE_CAMERA_POINT_AT  //  opcode_068E
IS_CHAR_ON_SCREEN   //  opcode_02CB

 

The next c++ code will kill any NPC visible on screen and close to a player within a radius of 4.0 or less:

auto playa = FindPlayerPed();
for (int i = 0; i < CPools::ms_pPedPool->m_nSize; i++) {
    auto ped = CPools::ms_pPedPool->GetAt(i);
    if (ped && playa) {
        if (ped->m_nPedType > 3) { //    check ePedType  GET_PED_TYPE
            CVector pedPosition = ped->TransformFromObjectSpace(CVector(0.0f, 0.0f, 0.0f));      //  GET_OFFSET_FROM_CHAR_IN_WORLD_COORDS
            CVector playaPosition = playa->TransformFromObjectSpace(CVector(0.0f, 0.0f, 0.0f));  //  GET_OFFSET_FROM_CHAR_IN_WORLD_COORDS
            float radius3D = sqrt(powf(playaPosition.x - pedPosition.x, 2) + powf(playaPosition.y - pedPosition.y, 2) + powf(playaPosition.z - pedPosition.z, 2));
            if (ped->GetIsOnScreen() && radius3D <= 4.0f) {
                ped->m_fHealth = 0.0;
            }
        }
    }
}

[gokuta]

ok, thanks. helped a bit. scm stuff irrelevant. still not clear how do I get camera pos

Edited July 29, 2020 by gokuta

[ZAZ]

5 hours ago, gokuta said:

still not clear how do I get camera pos

whats your plan?

[gokuta]

1 minute ago, ZAZ said:

whats your plan?

cry. no success yet

[ZAZ]

068D: and 068E: only work for the default camera

068D: get_camera_position_to [email protected] [email protected] [email protected]
068E: get_camera_target_point_to [email protected] [email protected] [email protected]

camera_position is placed ca. 1 or 2 units behind player_actor, depending to the cam adjustment by key V
camera_target_point is placed between camera_position and player_actor

to get a view point anywhere in view direction needs needs to do some calcutions
test the script below to understand
key_press Backspace shows a searchlight in view direction for 2 seconds
it requires to give a target point, which is calculated 30 units infront

{$CLEO .cs}
:AIM_LIGHT_BY_CAMERA
thread 'AIMLIHT'

while true
    wait 0
    if 
        0256:   player $PLAYER_CHAR defined
    then
        if and
            0AB0:   key_pressed 8//----------------------------key = Backspace
            044B:   actor $PLAYER_ACTOR on_foot
            84AD:  not actor $PLAYER_ACTOR in_water
        then            
            068D: get_camera_position_to 1@ 2@ 3@
            068E: get_camera_target_point_to 7@ 8@ 9@  
            0087: 11@ = 7@ // (float) 
            0087: 12@ = 8@ // (float) 
            0087: 13@ = 9@ // (float)            
            0087: 21@ = 7@ // (float) 
            0087: 22@ = 8@ // (float) 
            0087: 23@ = 9@ // (float) 
            0063: 21@ -= 1@ // (float) 
            0063: 22@ -= 2@ // (float) 
            0063: 23@ -= 3@ // (float) 
            0013: 21@ *= 30.0 
            0013: 22@ *= 30.0 
            0013: 23@ *= 30.0             
            005B: 7@ += 21@ // (float) 
            005B: 8@ += 22@ // (float) 
            005B: 9@ += 23@ // (float)                       
            06B1: 31@ = create_searchlight_at 11@ 12@ 13@ radius 0.1 target 7@ 8@ 9@ radius 0.2 
            wait 2000                        
            06B2: destroy_searchlight 31@
        end
    end
end

 

[gokuta]

gosh... I need help with plugin-sdk. I can do all the calculations, no problems. The problem is I have no idead how to GET the frickin' simpliest thing - camera position. I just need camera position, that's all I need. And where it's pointing. These opcodes:

068D: get_camera_position_to [email protected] [email protected] [email protected]
068E: get_camera_target_point_to [email protected] [email protected] [email protected] 

I need these exact things, just in plugin-sdk

 

Edited July 29, 2020 by gokuta

[Jack]

37 minutes ago, gokuta said:

068D: get_camera_position_to [email protected] [email protected] [email protected]
068E: get_camera_target_point_to [email protected] [email protected] [email protected] 

I need these exact things, just in plugin-sdk

 

 

//   068D: get_camera_position_to [email protected] [email protected] [email protected]
float camX = TheCamera.m_aCams->m_vecSource.x;
float camY = TheCamera.m_aCams->m_vecSource.y;
float camZ = TheCamera.m_aCams->m_vecSource.z;
         
//  068E: get_camera_target_point_to [email protected] [email protected] [email protected]
float camTargetX = camX + TheCamera.m_aCams->m_vecFront.x;
float camTargetY = camY + TheCamera.m_aCams->m_vecFront.y;
float camTargetZ = camZ + TheCamera.m_aCams->m_vecFront.z;

[gokuta]

yaas! that is basically it. Thanks, Jack, very helpful. to find the appropriate distance basically I need to calculate the magnitude (normalized) of vector cross product

Edited July 29, 2020 by gokuta