using UnityEngine;
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using UnityEngine.UI;
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using System.Collections;
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using EnhancedUI.EnhancedScroller;
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using EnhancedUI;
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namespace EnhancedScrollerDemos.SnappingDemo
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{
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/// <summary>
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/// This class controls one slot scroller. We could have shared the slot data between the
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/// three slot controllers, but for demonstration purposes we gave each slot controller their
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/// own set of data.
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/// </summary>
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public class SlotController : MonoBehaviour, IEnhancedScrollerDelegate
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{
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/// <summary>
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/// This list of slot cells
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/// </summary>
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private SmallList<SlotData> _data;
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/// <summary>
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/// The scroller that will display the slot cells
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/// </summary>
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public EnhancedScroller scroller;
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/// <summary>
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/// The slot cell view prefab to use in the scroller
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/// </summary>
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public EnhancedScrollerCellView slotCellViewPrefab;
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void Awake()
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{
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// create a new data list for the slots
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_data = new SmallList<SlotData>();
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}
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void Start()
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{
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// set this controller as the scroller's delegate
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scroller.Delegate = this;
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}
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public void Reload(Sprite[] sprites)
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{
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// reset the data list
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_data.Clear();
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// at the sprites from the demo script to this scroller's data cells
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foreach (var slotSprite in sprites)
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{
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_data.Add(new SlotData() { sprite = slotSprite });
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}
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// reload the scroller
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scroller.ReloadData();
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}
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/// <summary>
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/// This makes the scroller move without having an explicit touch event
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/// </summary>
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/// <param name="amount"></param>
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public void AddVelocity(float amount)
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{
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// set the scroller's linear velocity
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// (velocity in one direction)
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scroller.LinearVelocity = amount;
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}
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#region EnhancedScroller Callbacks
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/// <summary>
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/// This callback tells the scroller how many slot cells to expect
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/// </summary>
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/// <param name="scroller">The scroller requesting the number of cells</param>
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/// <returns>The number of cells</returns>
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public int GetNumberOfCells(EnhancedScroller scroller)
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{
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return _data.Count;
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}
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/// <summary>
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/// This callback tells the scroller what size each cell is.
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/// </summary>
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/// <param name="scroller">The scroller requesting the cell size</param>
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/// <param name="dataIndex">The index of the data list</param>
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/// <returns>The size of the cell (Height for vertical scrollers, Width for Horizontal scrollers)</returns>
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public float GetCellViewSize(EnhancedScroller scroller, int dataIndex)
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{
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return 150f;
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}
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/// <summary>
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/// This callback gets the cell to be displayed by the scroller
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/// </summary>
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/// <param name="scroller">The scroller requesting the cell</param>
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/// <param name="dataIndex">The index of the data list</param>
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/// <param name="cellIndex">The cell index (This will be different from dataindex if looping is involved)</param>
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/// <returns>The cell to display</returns>
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public EnhancedScrollerCellView GetCellView(EnhancedScroller scroller, int dataIndex, int cellIndex)
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{
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// get the cell view from the scroller, recycling if possible
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SlotCellView cellView = scroller.GetCellView(slotCellViewPrefab) as SlotCellView;
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// set the data for the cell
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cellView.SetData(_data[dataIndex]);
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// return the cell view to the scroller
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return cellView;
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}
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#endregion
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}
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}
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