u3d-tut-card-battler/Assets/Scripts/Card.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class Card : MonoBehaviour
{
    #region Card Data
    [Header("Card Data")]
    [SerializeField]
    private CardScriptableObject cardSO;

    // Card stats are used internally and can change during game play
    // The ScriptableObject holds the base stats and it will not change
    // during game play.
    private int currentHealth;
    private int attackPower;
    private int manaCost; 
    #endregion

    #region Card UI
    // References to UI elements on the card
    [Header("Card Stats UI")]
    [Tooltip("Drag UI element for card HEALTH to here ")]
    [SerializeField]
    private TMP_Text healthText;
    [Tooltip("Drag UI element for card ATTACK to here ")]
    [SerializeField]
    private TMP_Text attackText;
    [Tooltip("Drag UI element for card MANA to here ")]
    [SerializeField]
    private TMP_Text costText;

    [Header("Card Description UI")]
    [Tooltip("Drag UI element for card NAME to here ")]
    [SerializeField]
    private TMP_Text nameText;
    [Tooltip("Drag UI element for card DESCRIPTION to here ")]
    [SerializeField]
    private TMP_Text actionDescriptionText;
    [Tooltip("Drag UI element for card LORE to here ")]
    [SerializeField]
    private TMP_Text loreText;

    [Header("Card Image UI")]
    [SerializeField]
    private Image characterArt;
    [SerializeField]
    private Image bgArt;
    #endregion

    #region Animation
    // Hold location of where this card should display on the game surface.
    [Header("Card Animation")]
    [SerializeField]
    private float moveSpeed = 1.5f;
    [SerializeField]
    private float rotateSpeed = 540.0f;

    public Vector3 currentLocation;
    public Quaternion currentRotation;

    // Animation will move from current Transform to the values
    // contained in these two variables.
    private Vector3 movetoLocation;
    private Quaternion movetoRotation; 
    #endregion

    public bool inHand;
    public int handPosition;        // index of where the card is in the hand (brittle architecture here)

    
    #region MonoBehaviors
    // Start is called before the first frame update
    void Start()
    {
        SetupCard();     
    }

    // Update is called once per frame
    void Update()
    {
        transform.position = Vector3.Lerp(transform.position, movetoLocation, moveSpeed * Time.deltaTime);
        transform.rotation = Quaternion.RotateTowards(transform.rotation, movetoRotation, rotateSpeed * Time.deltaTime);
    }

    private void OnMouseOver()
    {
        if(inHand)
        {
            Vector3 newLocation = currentLocation;
            MoveToPoint(newLocation + new Vector3(0.0f, 1.0f, 0.5f), Quaternion.identity);
        }
    }

    private void OnMouseExit()
    {
        if(inHand)
        {
            MoveToPoint(currentLocation, currentRotation);
        }
    }
    #endregion

    /*****
     * This method loads the card data from the referenced ScriptableObject
     * and updates properties and display for this card object.
     */
    public void SetupCard()
    {
        // Set the card's initial stats. 
        currentHealth = cardSO.currentHealth; 
        attackPower = cardSO.attackPower; 
        manaCost = cardSO.manaCost;

        // Show the card's stats on the card display
        healthText.text = currentHealth.ToString();
        attackText.text = attackPower.ToString();
        costText.text = manaCost.ToString();

        // Show the card's description on the card display
        nameText.text = cardSO.cardName.ToString();
        actionDescriptionText.text = cardSO.actionDescription.ToString();
        loreText.text = cardSO.cardLore.ToString();

        // Show the card's images on the card display
        characterArt.sprite = cardSO.characterSprite;
        bgArt.sprite = cardSO.bgSprite;
    }

    /*****
     * This method is used move a card around on the game screen. It will move
     * the card from its current location and rotation to the provided location
     * and rotation.
     */
    public void MoveToPoint(Vector3 moveCardToLocation, Quaternion rotToMatch)
    {        
        movetoLocation = moveCardToLocation;
        movetoRotation = rotToMatch;        
    }
}