How can I draw a line in Unity with mouse ....?

Questions & Answers
1

hi every one :slight_smile:

I am new to unity scripting, i need to draw a line in game with mouse. i tired Line render and GL lines concept but it didn’t work.Please help me :frowning: :frowning:

2

Here is a bit of code borrowed from one of my other answers:

  • Create a new scene
  • Create a cylinder
  • Scale the cylinder to (0.005, 1.0, 0.005)
  • Put the following script on the cylinder
#pragma strict
 
var pos1 : Vector3;
var pos2 : Vector3;
var objectHeight = 2.0;  // 2.0 for a cylinder, 1.0 for a cube
 
function Update () {
 
    if (Input.GetMouseButtonDown(0)) {
       pos1 = Vector3(Input.mousePosition.x, Input.mousePosition.y, Camera.main.nearClipPlane + 0.5);
        pos1 = Camera.main.ScreenToWorldPoint(pos1); 
        pos2 = pos1;
 
    }
 
    if (Input.GetMouseButton(0)) {
       pos2 = Vector3(Input.mousePosition.x, Input.mousePosition.y, Camera.main.nearClipPlane + 0.5);
        pos2 = Camera.main.ScreenToWorldPoint(pos2); 
 
    }
 
    if (pos2 != pos1) {
       var v3 = pos2 - pos1;
        transform.position = pos1 + (v3) / 2.0;
        transform.localScale.y = v3.magnitude/objectHeight;
        transform.rotation = Quaternion.FromToRotation(Vector3.up, v3);
    }
}