Created
October 25, 2022 08:15
-
-
Save FaffyWaffles/7aed78f107a47372a4549d8f0732c7dd to your computer and use it in GitHub Desktop.
Moveable Point Cloud
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| using System.Collections; | |
| using System.Collections.Generic; | |
| using UnityEngine; | |
| using UnityEditor; | |
| using Sirenix.OdinInspector; | |
| public class MovablePoints : MonoBehaviour | |
| { | |
| public List<Vector2> points = new List<Vector2>(); | |
| public List<int> moveablePoints = new List<int>(); | |
| [Range(.01f, 1f)] public float selectionRadius = .05f; | |
| public bool selectionActive; | |
| [OnValueChanged("GeneratePoints")] | |
| [Range(3, 5000)] public int numPoints = 50; | |
| [Button] | |
| void GeneratePoints() | |
| { | |
| points.Clear(); | |
| for (int i = 0; i < numPoints; i++) | |
| points.Add(new Vector2(UnityEngine.Random.Range(-1f, 1f), UnityEngine.Random.Range(-1f, 1f))); | |
| } | |
| public Vector2 clickedPos; | |
| public List<Vector2> offsets = new List<Vector2>(); | |
| private void Update() | |
| { | |
| Vector2 mosPos = Camera.main.ScreenToWorldPoint(Input.mousePosition); | |
| if (Input.GetMouseButtonDown(0)) | |
| { | |
| clickedPos = mosPos; | |
| for (int i = 0; i < points.Count; i++) | |
| { | |
| Vector2 point = points[i]; | |
| if (IsPointInRange(point, mosPos)) | |
| { | |
| if (!moveablePoints.Contains(i)) | |
| { | |
| offsets.Add(point - clickedPos); | |
| moveablePoints.Add(i); | |
| } | |
| } | |
| } | |
| } | |
| if (Input.GetMouseButton(0)) | |
| { | |
| for (int i = 0; i < moveablePoints.Count; i++) | |
| { | |
| Vector2 offset = offsets[i]; | |
| points[moveablePoints[i]] = mosPos + offset; | |
| } | |
| } | |
| if (Input.GetMouseButtonUp(0)) | |
| { | |
| offsets.Clear(); | |
| moveablePoints.Clear(); | |
| } | |
| } | |
| [Range(.001f, .1f)] public float gizmoSize = .05f; | |
| void OnDrawGizmos() | |
| { | |
| if (selectionActive) | |
| { | |
| if (Input.GetAxis("Mouse ScrollWheel") > 0f && selectionRadius < 1) | |
| selectionRadius += .01f; | |
| if (Input.GetAxis("Mouse ScrollWheel") < 0f && selectionRadius > 0) | |
| selectionRadius -= .01f; | |
| Vector2 mosPos = Camera.main.ScreenToWorldPoint(Input.mousePosition); | |
| Handles.DrawWireDisc(mosPos, new Vector3(0, 0, 1), selectionRadius); | |
| for (int i = 0; i < points.Count; i++) | |
| { | |
| Vector2 point = points[i]; | |
| if (IsPointInRange(point, mosPos)) | |
| { | |
| if (Input.GetMouseButton(0) && moveablePoints.Contains(i)) | |
| Gizmos.color = Color.green; | |
| else | |
| Gizmos.color = Color.red; | |
| } | |
| else | |
| Gizmos.color = Color.white; | |
| Gizmos.DrawSphere(point, gizmoSize); | |
| } | |
| } | |
| } | |
| bool IsPointInRange(Vector2 point, Vector2 mosPos) | |
| { | |
| float dx = Mathf.Abs(point.x - mosPos.x); | |
| float dy = Mathf.Abs(point.y - mosPos.y); | |
| if (dx > selectionRadius) | |
| return false; | |
| if (dy > selectionRadius) | |
| return false; | |
| if (dx + dy <= selectionRadius) | |
| return true; | |
| if (Mathf.Pow(dx, 2) + Mathf.Pow(dy, 2) <= Mathf.Pow(selectionRadius, 2)) | |
| return true; | |
| return false; | |
| } | |
| } |
Author
FaffyWaffles
commented
Oct 25, 2022
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment