[lazarev]

Here's an example:
[img]http://img708.**************/img708/8715/requestc.jpg[/img]


red square is some entity, blue is me, aiming is aiming line, distance is the distance I want to get

[Ryokin]

PHP Code:

stock get_distance_to_line(Float:pos_start[3], Float:pos_end[3], Float:pos_object[3])  
{  
    new Float:vec_start_end[3], Float:vec_start_object[3], Float:vec_end_object[3], Float:vec_end_start[3]
    xs_vec_sub(pos_end, pos_start, vec_start_end)         // vector from start to end 
    xs_vec_sub(pos_object, pos_start, vec_start_object)     // vector from end to object 
    xs_vec_sub(pos_start, pos_end, vec_end_start)         // vector from end to start 
    xs_vec_sub(pos_end, pos_object, vec_end_object)         // vector object to end 
    
    new Float:len_start_object = getVecLen(vec_start_object) 
    new Float:angle_start = floatacos(xs_vec_dot(vec_start_end, vec_start_object) / (getVecLen(vec_start_end) * len_start_object), degrees)  
    new Float:angle_end = floatacos(xs_vec_dot(vec_end_start, vec_end_object) / (getVecLen(vec_end_start) * getVecLen(vec_end_object)), degrees)  

    if(angle_start <= 90.0 && angle_end <= 90.0) 
        return floatround(len_start_object * floatsin(angle_start, degrees)) 
    return -1  
} 


[Exolent[jNr]]

Note that the stock will get the line perpendicular to your aim vector for the smallest distance to your aim vector.

[SpeeDeeR]

Originally Posted by Exolent[jNr] Note that the stock will get the line perpendicular to your aim vector for the smallest distance to your aim vector.

Well, distance from point to line, is the perpendicular to the line drawn from the point.

[Exolent[jNr]]

Originally Posted by SpeeDeeR Well, distance from point to line, is the perpendicular to the line drawn from the point.

Yes, I know. I was only stating it since his picture does not show that.