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.SelectionDemo
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{
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/// <summary>
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/// This class sets up the data for the inventory and handles the EnhancedScrollers'
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/// callbacks. It also allows changes to the scrollers through some UI interfaces.
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/// </summary>
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public class SelectionDemo : MonoBehaviour, IEnhancedScrollerDelegate
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{
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/// <summary>
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/// The list of inventory data
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/// </summary>
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private SmallList<InventoryData> _data;
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/// <summary>
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/// The vertical inventory scroller
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/// </summary>
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public EnhancedScroller vScroller;
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/// <summary>
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/// The horizontal inventory scroller
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/// </summary>
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public EnhancedScroller hScroller;
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/// <summary>
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/// The cell view prefab for the vertical scroller
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/// </summary>
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public EnhancedScrollerCellView vCellViewPrefab;
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/// <summary>
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/// The cell view prefab for the horizontal scroller
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/// </summary>
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public EnhancedScrollerCellView hCellViewPrefab;
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/// <summary>
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/// The image that shows which item is selected
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/// </summary>
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public Image selectedImage;
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public Text selectedImageText;
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/// <summary>
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/// The base path to the resources folder where the inventory
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/// item sprites are located
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/// </summary>
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public string resourcePath;
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void Awake()
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{
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// turn on the mask and loop functionality for each scroller based
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// on the UI settings of this controller
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var maskToggle = GameObject.Find("Mask Toggle").GetComponent<Toggle>();
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MaskToggle_OnValueChanged(maskToggle.isOn);
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var loopToggle = GameObject.Find("Loop Toggle").GetComponent<Toggle>();
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LoopToggle_OnValueChanged(loopToggle.isOn);
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CellViewSelected(null);
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}
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void Start()
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{
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// set up the delegates for each scroller
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vScroller.Delegate = this;
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hScroller.Delegate = this;
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// reload the data
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Reload();
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}
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/// <summary>
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/// This function sets up our inventory data and tells the scrollers to reload
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/// </summary>
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private void Reload()
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{
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// if the data existed previously, loop through
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// and remove the selection change handlers before
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// clearing out the data.
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if (_data != null)
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{
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for (var i = 0; i < _data.Count; i++)
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{
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_data[i].selectedChanged = null;
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}
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}
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// set up a new inventory list
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_data = new SmallList<InventoryData>();
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// add inventory items to the list
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_data.Add(new InventoryData() { itemName = "Sword", itemCost = 123, itemDamage = 50, itemDefense = 0, itemWeight = 10, spritePath = resourcePath + "/sword", itemDescription = "Broadsword with a double-edged blade" });
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_data.Add(new InventoryData() { itemName = "Shield", itemCost = 80, itemDamage = 0, itemDefense = 60, itemWeight = 50, spritePath = resourcePath + "/shield", itemDescription = "Steel shield to deflect your enemy's blows" });
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_data.Add(new InventoryData() { itemName = "Amulet", itemCost = 260, itemDamage = 0, itemDefense = 0, itemWeight = 1, spritePath = resourcePath + "/amulet", itemDescription = "Magic amulet restores your health points gradually over time" });
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_data.Add(new InventoryData() { itemName = "Helmet", itemCost = 50, itemDamage = 0, itemDefense = 20, itemWeight = 20, spritePath = resourcePath + "/helmet", itemDescription = "Standard helm will decrease your vulnerability" });
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_data.Add(new InventoryData() { itemName = "Boots", itemCost = 40, itemDamage = 0, itemDefense = 10, itemWeight = 5, spritePath = resourcePath + "/boots", itemDescription = "Boots of speed will double your movement points" });
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_data.Add(new InventoryData() { itemName = "Bracers", itemCost = 30, itemDamage = 0, itemDefense = 20, itemWeight = 10, spritePath = resourcePath + "/bracers", itemDescription = "Bracers will upgrade your overall armor" });
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_data.Add(new InventoryData() { itemName = "Crossbow", itemCost = 100, itemDamage = 40, itemDefense = 0, itemWeight = 30, spritePath = resourcePath + "/crossbow", itemDescription = "Crossbow can attack from long range" });
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_data.Add(new InventoryData() { itemName = "Fire Ring", itemCost = 300, itemDamage = 100, itemDefense = 0, itemWeight = 1, spritePath = resourcePath + "/fireRing", itemDescription = "Fire ring gives you the magical ability to cast fireball spells" });
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_data.Add(new InventoryData() { itemName = "Knapsack", itemCost = 22, itemDamage = 0, itemDefense = 0, itemWeight = 0, spritePath = resourcePath + "/knapsack", itemDescription = "Knapsack will increase your carrying capacity by twofold" });
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// tell the scrollers to reload
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vScroller.ReloadData();
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hScroller.ReloadData();
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}
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/// <summary>
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/// This function handles the cell view's button click event
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/// </summary>
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/// <param name="cellView">The cell view that had the button clicked</param>
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private void CellViewSelected(EnhancedScrollerCellView cellView)
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{
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if (cellView == null)
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{
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// nothing was selected
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selectedImage.gameObject.SetActive(false);
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selectedImageText.text = "None";
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}
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else
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{
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// get the selected data index of the cell view
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var selectedDataIndex = (cellView as InventoryCellView).DataIndex;
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// loop through each item in the data list and turn
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// on or off the selection state. This is done so that
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// any previous selection states are removed and new
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// ones are added.
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for (var i = 0; i < _data.Count; i++)
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{
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_data[i].Selected = (selectedDataIndex == i);
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}
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selectedImage.gameObject.SetActive(true);
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selectedImage.sprite = Resources.Load<Sprite>(_data[selectedDataIndex].spritePath + "_v");
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selectedImageText.text = _data[selectedDataIndex].itemName;
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}
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}
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#region Controller UI Handlers
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/// <summary>
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/// This handles the toggle for the masks
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/// </summary>
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/// <param name="val">Is the mask on?</param>
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public void MaskToggle_OnValueChanged(bool val)
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{
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// set the mask component of each scroller
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vScroller.GetComponent<Mask>().enabled = val;
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hScroller.GetComponent<Mask>().enabled = val;
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}
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/// <summary>
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/// This handles the toggle fof the looping
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/// </summary>
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/// <param name="val">Is the looping on?</param>
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public void LoopToggle_OnValueChanged(bool val)
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{
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// set the loop property of each scroller
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vScroller.Loop = val;
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hScroller.Loop = val;
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}
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#endregion
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#region EnhancedScroller Callbacks
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/// <summary>
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/// This callback tells the scroller how many inventory items 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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if (scroller == vScroller)
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{
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// return a static height for all vertical scroller cells
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return 320f;
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}
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else
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{
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// return a static width for all horizontal scroller cells
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return 150f;
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}
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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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// first get a cell from the scroller. The scroller will recycle if it can.
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// We want a vertical cell prefab for the vertical scroller and a horizontal
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// prefab for the horizontal scroller.
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InventoryCellView cellView = scroller.GetCellView(scroller == vScroller ? vCellViewPrefab : hCellViewPrefab) as InventoryCellView;
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// set the name of the cell. This just makes it easier to see in our
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// hierarchy what the cell is
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cellView.name = (scroller == vScroller ? "Vertical" : "Horizontal") + " " + _data[dataIndex].itemName;
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// set the selected callback to the CellViewSelected function of this controller.
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// this will be fired when the cell's button is clicked
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cellView.selected = CellViewSelected;
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// set the data for the cell
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cellView.SetData(dataIndex, _data[dataIndex], (scroller == vScroller));
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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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