366 lines
11 KiB
C#
366 lines
11 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using System.Linq;
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using UnityEngine;
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using UnityEngine.Assertions;
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using TMPro;
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public enum CurrentCommand { defend, moveForward, retreat }
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// Left is Player, Enemy is right.
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public enum Side { left = 1, right = -1 }
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public class Unit : MonoBehaviour
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{
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public string unitName;
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public CardData cardData;
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[SerializeField]
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private int basicAttack;
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private int finalAttack;
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[SerializeField]
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private int currentDefense;
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[SerializeField]
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private int basicMaxDefense;
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private int finalMaxDefense;
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[SerializeField]
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private CardTag[] cardTags;
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[SerializeField]
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private int attackRange = 1;
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[SerializeField]
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private int movement = 1;
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[SerializeField]
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private CurrentCommand currentCommand;
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public Cell standingCell;
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[SerializeField]
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private Cell destinationCell;
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private CellMap cellMap;
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public Side side;
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public Transform modelArt;
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public Transform attackText;
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public Transform defenseText;
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public bool walkingToDestination = false;
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// Start is called before the first frame update
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void Start()
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{
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cellMap = FindObjectOfType<CellMap>();
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transform.position = standingCell.transform.position;
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transform.position = new Vector3(transform.position.x, transform.position.y, -1);
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standingCell.standingUnit = this;
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basicAttack = cardData.attack;
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basicMaxDefense = cardData.defense;
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currentDefense = basicMaxDefense;
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cardTags = cardData.cardTags;
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foreach (var tag in cardData.cardTags)
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{
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if (tag.name == "Archer")
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{
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attackRange += 2;
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}
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else if (tag.name == "Cavalry")
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{
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movement += 1;
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}
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}
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modelArt.GetComponent<SpriteRenderer>().sprite = cardData.artwork;
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}
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// Update is called once per frame
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void Update()
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{
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if (walkingToDestination && destinationCell && transform.position != destinationCell.transform.position)
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{
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Vector3 moveVec = destinationCell.transform.position - transform.position;
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transform.position = new Vector3(transform.position.x + moveVec.x * 5.0f * Time.deltaTime, transform.position.y + moveVec.y * 5.0f * Time.deltaTime, -1);
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//Debug.Log("Manitude: " + moveVec.magnitude);
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if ((Mathf.Approximately(transform.position.x, destinationCell.transform.position.x)
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&& Mathf.Approximately(transform.position.y, destinationCell.transform.position.y))
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|| moveVec.magnitude <= 1)
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{
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walkingToDestination = false;
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transform.position = new Vector3(destinationCell.transform.position.x, destinationCell.transform.position.y, -1);
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destinationCell = null;
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//Debug.Log("Arrived.");
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}
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}
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finalAttack = basicAttack; // For now.
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attackText.GetComponent<TextMeshProUGUI>().text = finalAttack.ToString();
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defenseText.GetComponent<TextMeshProUGUI>().text = currentDefense.ToString();
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}
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public void MoveAndAttack()
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{
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MoveAction();
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AttackAction();
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}
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public void MoveAction()
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{
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if (walkingToDestination)
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{
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return;
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}
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foreach (var tag in cardData.cardTags)
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{
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if (tag.name == "Archer")
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{
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for (int i = 0; i < attackRange; ++i)
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{
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int attackXPos = standingCell.xPos + (i + 1) * (int)side;
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if (attackXPos >= cellMap.column || attackXPos < 0)
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{
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// Attack Camp
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currentCommand = CurrentCommand.defend;
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break;
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}
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Cell nextCellInRange = cellMap.GetCell(attackXPos, standingCell.yPos);
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Unit targetUnit = nextCellInRange.standingUnit;
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if (targetUnit)
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{
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if (targetUnit.side != side)
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{
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// Add units to attack list.
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currentCommand = CurrentCommand.defend;
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break;
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}
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}
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currentCommand = CurrentCommand.moveForward;
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}
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break;
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}
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}
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//Debug.Log("Call MoveAction().");
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switch (currentCommand)
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{
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case CurrentCommand.defend:
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break;
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case CurrentCommand.moveForward:
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//Debug.Log("Try Move Forward.");
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for (int i = 0; i < movement; i++)
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{
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if (checkDestinationCellEmpty())
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{
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// Attack()
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//Debug.Log("Start Moving.");
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MoveToCell(destinationCell);
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walkingToDestination = true;
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}
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else
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{
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//Debug.Log("Can't Move.");
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// Check the unit is facing the camp or unit.
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if (destinationCell)
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{
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// Check the unit is Allie or Enemy.
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if (destinationCell.standingUnit.side == side)
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{
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// Check the Allie is swappable or not.
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if (!inDogFight(destinationCell.standingUnit))
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{
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//standingCell = cell;
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//cell.standingUnit = this;
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destinationCell.standingUnit.walkingToDestination = true;
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standingCell.standingUnit = destinationCell.standingUnit;
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standingCell.standingUnit.standingCell = standingCell;
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standingCell.standingUnit.destinationCell = standingCell;
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standingCell = destinationCell;
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destinationCell.standingUnit = this;
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walkingToDestination = true;
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}
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}
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else
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{
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// Can't move to cell this is standed by enemy.
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break;
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}
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}
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else
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{
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// Facing the camp.
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break;
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}
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destinationCell = standingCell;
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}
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}
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break;
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case CurrentCommand.retreat:
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break;
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default:
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break;
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}
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}
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public void AttackAction()
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{
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// Check Attack Range
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if (inDogFight(this))
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{
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foreach (var tag in cardData.cardTags)
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{
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if (tag.name == "Archer")
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{
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// Archer can't dog fight.
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return;
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}
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}
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}
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List<Unit> unitsInRange = new List<Unit>();
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for (int i = 0; i < attackRange; ++i)
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{
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int attackXPos = standingCell.xPos + (i+1) * (int)side;
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if (attackXPos >= cellMap.column || attackXPos < 0)
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{
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// Attack Camp
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return;
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}
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Cell nextCellInRange = cellMap.GetCell(attackXPos, standingCell.yPos);
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Unit targetUnit = nextCellInRange.standingUnit;
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if (targetUnit)
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{
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if (targetUnit.side != side)
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{
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// Add units to attack list.
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unitsInRange.Add(targetUnit);
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}
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else
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{
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// It is allies. We don't attack it unless we are under some debuff.
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}
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}
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else
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{
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// Nothing to attack.
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//Debug.Log("No unit to attack.");
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}
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}
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if (side == Side.left)
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{
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unitsInRange = unitsInRange.OrderBy(x => x.standingCell.xPos).ToList<Unit>();
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}
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else
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{
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unitsInRange = unitsInRange.OrderByDescending(x => x.standingCell.xPos).ToList<Unit>();
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}
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for (int i = 0; i < unitsInRange.Count; i++)
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{
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Debug.Log(unitsInRange[i].unitName + ": " + unitsInRange[i].standingCell.xPos + " , " + unitsInRange[i].standingCell.yPos);
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// Do attack
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//Debug.Log("Attack!");
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unitsInRange[i].currentDefense -= finalAttack;
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if (unitsInRange[i].currentDefense <= 0)
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{
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unitsInRange[i].standingCell.standingUnit = null;
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unitsInRange[i].gameObject.SetActive(false); // For now
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Unit unit = unitsInRange[i];
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FindObjectOfType<UnitManager>().handleDiedUnit(unit);
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//Debug.Log("Defeat Enemy");
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}
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break; // Most of units can only attack one target.
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}
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}
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public bool isUnitAlive()
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{
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return currentDefense > 0;
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}
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bool checkDestinationCellEmpty(bool retreat = false)
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{
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int currentXPos = standingCell.xPos;
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int movePath = 0;
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if (retreat)
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{
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movePath = 1 * -(int)side;
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}
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else
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{
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movePath = 1 * (int)side;
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}
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int destinationXPos = standingCell.xPos + movePath;
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// Mean the destination cell is the Camp.
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if (!checkPosInMap(destinationXPos))
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{
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return false;
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}
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destinationCell = cellMap.GetCell(destinationXPos, standingCell.yPos);
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if (destinationCell.standingUnit == null)
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{
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return true;
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}
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else
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{
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// Check privous cell is standable if we have more than 1 movement ability.
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return false;
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}
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}
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void MoveToCell(Cell cell)
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{
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Assert.IsTrue(destinationCell.standingUnit == null, "Trying to move a cell that is already be standing by another unit.");
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standingCell.standingUnit = null;
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standingCell = cell;
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cell.standingUnit = this;
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}
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// Check the allies is near by an enemy or not.
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bool inDogFight(Unit unit)
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{
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int checkPos = unit.standingCell.xPos + (int)side * 1;
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if (!checkPosInMap(checkPos))
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{
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return false;
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}
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var checkCell = cellMap.GetCell(checkPos, standingCell.yPos);
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if (checkCell.standingUnit && checkCell.standingUnit.side != side)
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{
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return true;
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}
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return false;
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}
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bool checkPosInMap(int pos)
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{
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return pos >= 0 && pos < cellMap.column;
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}
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}
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