43 lines
1.4 KiB
C#
43 lines
1.4 KiB
C#
using System.Collections;
|
|
using System.Collections.Generic;
|
|
using Unity.Mathematics;
|
|
using UnityEngine;
|
|
using UnityEngine.EventSystems;
|
|
|
|
public class MapMenuInput : MonoBehaviour, IBeginDragHandler, IDragHandler, IScrollHandler
|
|
{
|
|
public MapRenderer Map;
|
|
public float ZoomSpeed;
|
|
|
|
private Vector2 _startMousePosition;
|
|
|
|
private Vector2 _startMapPosition;
|
|
private RectTransform _mapRect;
|
|
|
|
private void Start()
|
|
{
|
|
_mapRect = Map.GetComponent<RectTransform>();
|
|
}
|
|
|
|
public void OnBeginDrag(PointerEventData eventData)
|
|
{
|
|
_startMousePosition = eventData.position;
|
|
_startMapPosition = Map.Position;
|
|
}
|
|
|
|
public void OnDrag(PointerEventData eventData)
|
|
{
|
|
Map.Position = _startMapPosition - (eventData.position - _startMousePosition) * Map.Scale;
|
|
}
|
|
|
|
public void OnScroll(PointerEventData eventData)
|
|
{
|
|
Vector3[] mapCorners = new Vector3[4];
|
|
_mapRect.GetWorldCorners(mapCorners);
|
|
var mapCenter = ((float3)(mapCorners[2] + mapCorners[0]) / 2).xy;
|
|
var oldPointerPosition = Map.Position + ((float2)eventData.position - mapCenter) * Map.Scale;
|
|
Map.Scale *= 1 - eventData.scrollDelta.y * ZoomSpeed;
|
|
var pointerPosition = Map.Position + ((float2)eventData.position - mapCenter) * Map.Scale;
|
|
Map.Position += oldPointerPosition - pointerPosition;
|
|
}
|
|
}
|