[Unity][2D] 드래그 해서 타일 깔기

이전 포스트에 이어서 모든 방향으로 타일 깔기 도전

switch 조건문을 이용해서 마우스 방향에 따른 Mouse direction 값을 조정해주는 방법으로 진행하였다.

 

<실행 화면>

<실행 코드>

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

using UnityEngine.Tilemaps;
using UnityEngine.EventSystems;

public class button_Event : MonoBehaviour
{
    private bool UI1_active = false;
    private bool begin = true;

    public Button button2;

    Vector2 current_MousePosition;
    Vector2 begin_MousePosition;

    Camera Camera;
    public Tilemap Tilemap;

    [SerializeField]
    private TileBase target_tile;
    private int mouse_direction = 0; // Mouse 동작 방향을 구분하기 위함


    Vector3Int current_pos = new Vector3Int(0, 0, 0);
    Vector3Int begin_pos = new Vector3Int(0, 0, 0);
    Vector3Int temp_pos = new Vector3Int(0, 0, 0);

    // Start is called before the first frame update
    void Start()
    {
        Camera = GameObject.Find("Main Camera").GetComponent<Camera>();
        button2.onClick.AddListener(UI1_Activity);
    }
    void Update()
    {

        if (UI1_active == true)
        {
            button2.GetComponentInChildren<Text>().text = "button1 activated";
            if (Input.GetMouseButton(0))
            {

                if (begin == true)
                {
                    begin_MousePosition = Input.mousePosition;
                    begin_MousePosition = Camera.ScreenToWorldPoint(begin_MousePosition);
                    begin_pos.x = Tilemap.WorldToCell(begin_MousePosition).x;
                    begin_pos.y = Tilemap.WorldToCell(begin_MousePosition).y;
                    begin = false;
                }

                current_MousePosition = Input.mousePosition;
                current_MousePosition = Camera.ScreenToWorldPoint(current_MousePosition);
                current_pos.x = Tilemap.WorldToCell(current_MousePosition).x;
                current_pos.y = Tilemap.WorldToCell(current_MousePosition).y;

              // 마우스 방향에 따라 mouse_direction 값 정해주기
                if (begin_pos.x <= current_pos.x && begin_pos.y >= current_pos.y)
                    mouse_direction = 0; // right down
                else if (begin_pos.x <= current_pos.x && begin_pos.y < current_pos.y)
                    mouse_direction = 1; // right up
                else if (begin_pos.x > current_pos.x && begin_pos.y >= current_pos.y)
                    mouse_direction = 2; // left down
                else
                    mouse_direction = 3; // left up

                switch (mouse_direction)
                {
                    case 0:
                        for (int i = begin_pos.x; i <= current_pos.x; i++)
                        {
                            for (int j = begin_pos.y; j >= current_pos.y; j--)
                            {
                                temp_pos.x = i;
                                temp_pos.y = j;
                                Tilemap.SetTile(temp_pos, target_tile);
                            }
                        }
                        break;

                    case 1:
                        for (int i = begin_pos.x; i <= current_pos.x; i++)
                        {
                            for (int j = begin_pos.y; j <= current_pos.y; j++)
                            {
                                temp_pos.x = i;
                                temp_pos.y = j;
                                Tilemap.SetTile(temp_pos, target_tile);
                            }
                        }
                        break;

                    case 2:
                        for (int i = begin_pos.x; i >= current_pos.x; i--)
                        {
                            for (int j = begin_pos.y; j >= current_pos.y; j--)
                            {
                                temp_pos.x = i;
                                temp_pos.y = j;
                                Tilemap.SetTile(temp_pos, target_tile);
                            }
                        }
                        break;

                    case 3:
                        for (int i = begin_pos.x; i >= current_pos.x; i--)
                        {
                            for (int j = begin_pos.y; j <= current_pos.y; j++)
                            {
                                temp_pos.x = i;
                                temp_pos.y = j;
                                Tilemap.SetTile(temp_pos, target_tile);
                            }
                        }
                        break;
                }

            }
            if (Input.GetMouseButtonUp(0))
                begin = true;

        }

        else
        {
            button2.GetComponentInChildren<Text>().text = "button1 deactivated";
        }
    }

    private void UI1_Activity()
    {
        UI1_active = !UI1_active;
    }
}