Create Ground/Walls using finger

Unity Engine
1

I would like to be able to draw a line with my finger, and when I lift my finger a collider is added to it. The line could be a squiggly line or straight line, it all depends on what is needed. but basically I wan’t to be able to create as many lines as I want, and each line will have it’s own collider. I am pretty sure it is possible to do that, but the question is how?

Basically you use your finger to create ground/walls in the game.

I found this: Draw Line on mouse move and detect line collision in unity 3D

Which allows me to draw a line, now I just need to be able to place a collider around it and create multiple lines…

2

I Was able to build it, and if anyone is looking for something similar, here is the code. Just attach it to an empty game object.

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
public class DrawLine : MonoBehaviour  {
    private LineRenderer line;
    private bool isMousePressed;
 
    private GameObject lineObject;
 
    private List<Vector3> pointsList;
    private Vector3 mousePos;
 
    private float lineSize = 0.25f;
 
    void Update () {
        // If mouse button down, remove old line and set its color to green
        if(Input.GetMouseButtonDown(0)){
            isMousePressed = true;
            newLine();
        }
        else if(Input.GetMouseButtonUp(0)){
            isMousePressed = false;
        }
        // Drawing line when mouse is moving(presses)
        if(isMousePressed){
            mousePos   = Camera.main.ScreenToWorldPoint(Input.mousePosition);
            mousePos.z = 0;
            if(!pointsList.Contains(mousePos)){
                pointsList.Add(mousePos);
                line.SetVertexCount(pointsList.Count);
                line.SetPosition(pointsList.Count - 1, (Vector3)pointsList[pointsList.Count - 1]);
             
                Vector3 point1 = pointsList[pointsList.Count - 2];
                Vector3 point2 = pointsList[pointsList.Count - 1];
             
                GameObject obj = new GameObject("SubCollider");
                obj.transform.position = (point1 + point2) / 2;
                obj.transform.right = (point2 - point1).normalized;
             
                BoxCollider2D boxCollider = obj.AddComponent<BoxCollider2D>();
                boxCollider.size = new Vector3((point2 - point1).magnitude, lineSize, lineSize);
             
                obj.transform.parent = lineObject.transform;
            }
        }
    }
 
    void newLine(){
        lineObject = new GameObject();
        lineObject.name = "Line";
        lineObject.transform.parent = gameObject.transform;
     
        line = lineObject.AddComponent<LineRenderer>();
        line.material =  new Material(Shader.Find("Sprites/Default"));
        line.SetVertexCount(0);
        line.SetWidth(lineSize, lineSize);
        line.SetColors(Color.black, Color.black);
        line.useWorldSpace = true;
        pointsList = new List<Vector3>();
    }
}