koobas.hobune.stream
How can you get a point on a direction,which is defined by 2 Vector 3s
Hi to all. I`m making a RTS Game an i`ve encountered a problem.
I have the position of two units(Vector3)and i want to find the point with one unit closer to the units positions from the middle point;
I know how to calculate the middle point, but HOW do i calculate the points one unit towards the units position. 
I`m trying to find point1 and point2;
Given two Vector3 name unit1 and unit2:
var dir = unit2 - unit1;
var middle = unit1 + dir * 0.5;
var point1 = middle - dir.normalized * dist;
var point2 = middle + dir.normalized * dist;
Where 'dist' is the distance from the middle.
This is simple.
Let's say you have your vector from Unit1 to Unit2 :
Vector3 unit1To2 = unit2.transform.position - unit1.transform.position;
You can have the length of that vector by doing this:
float vLen = unit1To2.magnitude;
You can have the unit vector (of length 1) by doing the Normalize operation:
unit1to2.Normalize();
You can find the middle point doing so, assuming unit1to2 has been normalized.
Vector3 middlePoint = unit1.transform.position + (unit1to2 * vLen /2.0f);
You can also directly have point 1 and 2 by doing this:
Vector3 point1= unit1.transform.position + (unit1to2 * ((vLen /2.0f) - 1.0f ));
Vector3 point2= unit1.transform.position + (unit1to2 * ((vLen /2.0f) + 1.0f ));
For this kind of problem you really have to familiarize with vector math, magnitude (length), Normal vectors, etc.
Doing a RTS without this knowledge will be impossible, but I wish you luck learning :)
