IsPlayerOrientedTowardPos()

static bool IsPlayerOrientedTowardPos ( notnull DayZPlayerImplement player, vector target_pos, float cone_angle )

staticprotected

Check if player direction(based on cone of defined angle) is oriented to target position.

dir in cone or in a tip of cone

См. определение в файле MiscGameplayFunctions.c строка 899

    {
        if (player)
        {
            vector player_dir = player.GetDirection();
            vector to_target_dir = target_pos - player.GetPosition();
    
            player_dir[1] = 0;
            to_target_dir[1] = 0;
        
            player_dir.Normalize();
            to_target_dir.Normalize();
        
            float cos_fi = vector.Dot(player_dir, to_target_dir);
            vector cross = player_dir * to_target_dir;
        
            int dir = Math.Acos(cos_fi) * Math.RAD2DEG;
                
            if( cross[1] < 0 )
                dir = -dir;

            if( (dir <= cone_angle && dir >= -cone_angle) || Math.AbsFloat(dir) == 90 )
            {
                return true;
            }
        }
        
        return false;
    }

Перекрестные ссылки Math::AbsFloat(), Math::Acos(), vector::Dot(), vector::Normalize() и Math::RAD2DEG.