74 lines
2.1 KiB
C#
74 lines
2.1 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.UI;
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public class InfiniteScrollSnap : MonoBehaviour {
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public ScrollRect scrollRect;
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public RectTransform content;
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public float itemWidth = 200f;
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public float snapSpeed = 10f;
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public List<ZibuPiece> pieces;
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public List<Sprite> zibuSprites;
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private bool isDragging = false;
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private float targetX;
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private int centerIndex = 0;
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void Update() {
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float contentX = content.anchoredPosition.x;
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foreach (var piece in pieces) {
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Vector3 localPos = piece.transform.localPosition;
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if (localPos.x + contentX < -itemWidth * 3) {
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MoveRight(piece);
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} else if (localPos.x + contentX > itemWidth * 3) {
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MoveLeft(piece);
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}
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}
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if (!isDragging) {
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Vector2 pos = content.anchoredPosition;
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float newX = Mathf.Lerp(pos.x, targetX, Time.deltaTime * snapSpeed);
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content.anchoredPosition = new Vector2(newX, pos.y);
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}
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}
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public void OnBeginDrag() {
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isDragging = true;
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}
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public void OnEndDrag() {
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isDragging = false;
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float posX = content.anchoredPosition.x;
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int closestIndex = Mathf.RoundToInt(posX / -itemWidth);
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targetX = -closestIndex * itemWidth;
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}
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void MoveRight(ZibuPiece piece) {
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piece.transform.localPosition += new Vector3(itemWidth * pieces.Count, 0, 0);
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RotateForward(piece);
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}
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void MoveLeft(ZibuPiece piece) {
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piece.transform.localPosition -= new Vector3(itemWidth * pieces.Count, 0, 0);
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RotateBackward(piece);
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}
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void RotateForward(ZibuPiece piece) {
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centerIndex = (centerIndex + 1) % zibuSprites.Count;
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ApplySprite(piece, centerIndex);
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}
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void RotateBackward(ZibuPiece piece) {
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centerIndex = (centerIndex - 1 + zibuSprites.Count) % zibuSprites.Count;
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ApplySprite(piece, centerIndex);
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}
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void ApplySprite(ZibuPiece piece, int index) {
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piece.image.sprite = zibuSprites[index];
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piece.zibuId = $"Zibu_{index}";
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}
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}
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