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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class DrawLine : MonoBehaviour
{
public GameObject linePrefab;
public GameObject currentLine;
public LineRenderer lineRenderer;
public EdgeCollider2D edgeCollider;
public List<Vector2> fingerPositions;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
if (Input.GetMouseButtonDown(0))
{
CreateLine();
}
if (Input.GetMouseButton(0))
{
Vector2 tempFingerPos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
if (Vector2.Distance(tempFingerPos, fingerPositions[fingerPositions.Count - 1]) > .1f)
{
UpdateLine(tempFingerPos);
}
}
}
void CreateLine()
{
currentLine = Instantiate(linePrefab, Vector3.zero, Quaternion.identity);
lineRenderer = currentLine.GetComponent<LineRenderer>();
edgeCollider = currentLine.GetComponent<EdgeCollider2D>();
fingerPositions.Clear();
fingerPositions.Add(Camera.main.ScreenToWorldPoint(Input.mousePosition));
fingerPositions.Add(Camera.main.ScreenToWorldPoint(Input.mousePosition));
lineRenderer.SetPosition(0, fingerPositions[0]);
lineRenderer.SetPosition(1, fingerPositions[1]);
edgeCollider.points = fingerPositions.ToArray();
}
void UpdateLine(Vector2 newFingerPos)
{
fingerPositions.Add(newFingerPos);
lineRenderer.positionCount++;
lineRenderer.SetPosition(lineRenderer.positionCount - 1, newFingerPos);
edgeCollider.points = fingerPositions.ToArray();
}
}
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