ここの部分ってどういう意味ですか？

とても、初歩的な質問です。
下のコードの

int[] field_card_num = new int[20];

はどういう意味を指しているのですか？(13行目です)
コードは長すぎて、制限を超えてしまったため、最後の方は省略しています。

該当のソースコード

C#
1using System.Collections;
2using System.Collections.Generic;
3using System.Linq;
4using UnityEngine;
5using UnityEngine.UI;
6
7public class GameMaster : MonoBehaviour
8{
9
10    public Sprite[] cards = new Sprite[54];
11    public GameObject field_cards_root, field_Setcards_root, deck, straight, flush, three, four, five, push, canvas, canvas_R, yaku_name_root, yaku_point_root, yaku;
12    public Text time, num, suit, Point;
13    int[] field_card_num = new int[20];
14    GameObject[] field_cards = new GameObject[20];
15    Vector3[] field_card_pos = new Vector3[20];
16    Vector3[] field_selectedcard_pos = new Vector3[5];
17    List<int> card_stockList = new List<int>();
18    List<int> card_setList = new List<int>();
19    List<int> card_numList = new List<int>();
20    List<int> card_suitList = new List<int>();
21    List<int> card_outList = new List<int>();
22
23    bool[] straight_check = new bool[13];
24    int[] flush_count = new int[4];
25    int[] kinds_count = new int[13];
26    int[] num_count = new int[13];
27    int[] suits_count = new int[4];
28    int[] result_yaku = new int[10];
29    bool field_joker = false;
30    bool field_joker_pass = false;
31    bool joker = false;
32    bool joker_pass = false;
33    GameObject time_plus;
34    int set_num, yaku_rank;
35    int secondtime = 90;
36    float delta_time = 0;
37    bool play_time = true;
38
39    List<string> Bonus_numList = new List<string> { "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K" };
40    List<string> Bonus_suitList = new List<string> { "♣", "♦", "♥" };
41
42    int bonus_num;
43    int bonus_suit;
44
45    void Start()
46    {
47
48        for (int i = 0; i < 53; i++)
49        {
50            card_stockList.Add(i);
51        }
52
53        for (int i = 0; i < 5; i++)
54        {
55            field_selectedcard_pos[i] = field_Setcards_root.transform.GetChild(i).GetComponent<RectTransform>().localPosition;
56        }
57
58        for (int i = 0; i < 20; i++)
59        {
60            field_card_pos[i] = new Vector3(-264 + 132 * (i % 5), 70 - 177 * (i / 5), 0);
61            int n = Random.Range(0, card_stockList.Count);
62            field_card_num[i] = card_stockList[n];
63            field_cards[i] = field_cards_root.transform.GetChild(i).gameObject;
64            field_cards[i].GetComponent<Image>().sprite = cards[card_stockList[n]];
65            field_cards[i].GetComponent<RectTransform>().transform.localPosition = field_card_pos[i];
66            card_stockList.RemoveAt(n);
67        }
68
69        FieldSet();
70
71        time_plus = time.transform.GetChild(0).gameObject;
72    }
73
74    void FieldSet()
75    {
76        for (int i = 0; i < 20; i++)
77        {
78            if (field_card_num[i] == 52)
79            {
80                field_joker = true;
81                field_joker_pass = true;
82            }
83            else
84            {
85                straight_check[field_card_num[i] % 13] = true;
86                flush_count[field_card_num[i] / 13]++;
87                kinds_count[field_card_num[i] % 13]++;
88            }
89        }
90
91        straight.SetActive(false);
92        flush.SetActive(false);
93        three.SetActive(false);
94        four.SetActive(false);
95        five.SetActive(false);
96
97        for (int c = 0; c < 8; c++)
98        {
99            if (straight_check[c] == true)
100            {
101                for (int i = 1; i < 5; i++)
102                {
103                    if (straight_check[c + i] == false)
104                    {
105                        if (!field_joker_pass)
106                        {
107                            if (field_joker)
108                            {
109                                field_joker_pass = true;
110                            }
111                            break;
112                        }
113                        else
114                        {
115                            field_joker_pass = false;
116                        }
117                    }
118                    if (i == 4)
119                    {
120                        if (field_joker)
121                        {
122                            field_joker_pass = true;
123                        }
124                        straight.SetActive(true);
125                        break;
126                    }
127                }
128            }
129            if (straight.activeSelf == true)
130            {
131                break;
132            }
133        }
134        for (int c = 0; c < 4; c++)
135        {
136            if (field_joker)
137            {
138                flush_count[c]++;
139            }
140            if (flush_count[c] >= 5)
141            {
142                flush.SetActive(true);
143                break;
144            }
145        }
146
147        for (int c = 0; c < 13; c++)
148        {
149            if (field_joker)
150            {
151                kinds_count[c]++;
152            }
153            if (kinds_count[c] >= 5)
154            {
155                three.SetActive(true);
156                four.SetActive(true);
157                five.SetActive(true);
158                break;
159            }
160            else if (kinds_count[c] == 4)
161            {
162                three.SetActive(true);
163                four.SetActive(true);
164            }
165            else if (kinds_count[c] == 3)
166            {
167                three.SetActive(true);
168            }
169        }
170
171        BonusSet();
172    }
173
174    void BonusSet()
175    {
176        int r_num = Random.Range(0, Bonus_numList.Count);
177        int r_suit = Random.Range(0, Bonus_suitList.Count);
178
179        string old_num = num.text;
180        num.text = Bonus_numList[r_num];
181        Bonus_numList.RemoveAt(r_num);
182        Bonus_numList.Add(old_num);
183
184        switch (num.text)
185        {
186            case "A":
187                bonus_num = 0;
188                break;
189
190            case "J":
191                bonus_num = 10;
192                break;
193
194            case "Q":
195                bonus_num = 11;
196                break;
197
198            case "K":
199                bonus_num = 12;
200                break;
201
202            default:
203                bonus_num = int.Parse(num.text) - 1;
204                break;
205        }
206
207        string old_suit = suit.text;
208        suit.text = Bonus_suitList[r_suit];
209        Bonus_suitList.RemoveAt(r_suit);
210        Bonus_suitList.Add(old_suit);
211
212        switch (suit.text)
213        {
214            case "♣":
215                suit.color = Color.green;
216                bonus_suit = 0;
217                break;
218            case "♦":
219                suit.color = Color.yellow;
220                bonus_suit = 1;
221                break;
222            case "♥":
223                suit.color = Color.red;
224                bonus_suit = 2;
225                break;
226            case "♠":
227                suit.color = Color.blue;
228                bonus_suit = 3;
229                break;
230        }
231    }
232
233    public void CardSet(int i)
234    {
235        if (set_num < 5)
236        {
237            field_cards[i].GetComponent<RectTransform>().transform.localPosition = field_selectedcard_pos[set_num];
238            card_setList.Add(i);
239            if (field_card_num[i] != 52)
240            {
241                card_numList.Add(field_card_num[i] % 13);
242                card_suitList.Add(field_card_num[i] / 13);
243                num_count[field_card_num[i] % 13]++;
244                suits_count[field_card_num[i] / 13]++;
245            }
246            else
247            {
248                card_numList.Add(100);
249                card_suitList.Add(100);
250                joker = true;
251                joker_pass = true;
252  
253              ・
254              ・
255              ・
256            
257

m.ts10806

2019/11/15 12:04

https://teratail.com/questions/223298 ここでのやりとりで丸投げはしないという風に理解してもらえたと期待した私はバカですかね。既に「チュートリアル終わらせてからプログラミングをして」と指摘受けていますが、「サイトのガイドラインにそっているか確認してから投稿」も自身の毎回TODOに入れておいてください。投稿画面に行く前に「質問する前に確認していただきたいこと」も出ているし投稿画面ではチェックリストもあります。「任意だから別にいい」「罰せられるわけじゃないから別にいい」などとふざけた考えは今すぐ捨てて、全部きっちり守ってください。