1using System.Collections;
  2using System.Collections.Generic;
  3using UnityEngine;
  4using UnityEngine.UI;
  5using static UnityEngine.UI.Button;
  6
  7public class BattleUIManager : UIManager
  8{
  9    private BattleManager battle;
 10    private GameMaster gm;
 11
 12    //smart input variables
 13    private const string itemsGuiName = "Items";
 14    private const int maxAbilityNumber = 6;
 15    private const int maxTargetNumber = 5;
 16    private const int maxItemNumber = 9;
 17
 18    private Button[] ability_buttons;
 19    private Button[] item_buttons;
 20    private Button[] target_buttons;
 21    private List<Ability> abilities;
 22    private Coroutine text_coroutine;
 23    private int i = 0;
 24
 25
 26    public Text status;
 27    public GameObject status_panel;
 28    public GameObject results_panel;
 29    public Text drops;
 30    public GameObject input_panel;
 31    public GameObject targets_panel;
 32    public GameObject items_panel;
 33
 34    private void Start()
 35    {
 36        UI.showCursor(true);
 37        gm = GameMaster.Instance;
 38        battle = GetComponent<BattleManager>();
 39
 40        /*
 41        status_panel = GameObject.Find("status_panel");
 42        status = status_panel.GetComponentInChildren<Text>();
 43        input_panel = GameObject.Find("Input_UI");
 44        items_panel = GameObject.Find("items_panel");
 45        targets_panel = GameObject.Find("targets_panel");
 46        results_panel = GameObject.Find("Results_UI");
 47        drops = GameObject.Find("drops_text").GetComponent<Text>();
 48        */
 49
 50        input_panel.SetActive(false);
 51        targets_panel.SetActive(false);
 52        items_panel.SetActive(false);
 53        results_panel.SetActive(false);
 54
 55        ability_buttons = input_panel.transform.GetComponentsInChildren<Button>();
 56        target_buttons = targets_panel.GetComponentsInChildren<Button>();
 57        item_buttons = items_panel.GetComponentsInChildren<Button>();
 58
 59        
 60        #region Set target buttons
 61        foreach (Fighter f in battle.fighters)
 62        {
 63            if (f.fighter_number < 0 || f.fighter_number >= maxTargetNumber)
 64            {
 65                i = maxTargetNumber - 1;
 66            }
 67            else
 68            {
 69                i = f.fighter_number;
 70            }
 71            target_buttons[i].GetComponentInChildren<Text>().text = f.ToString();
 72        }
 73        foreach (Button b in target_buttons)
 74        {
 75            if (b.GetComponentInChildren<Text>().text == "")
 76            {
 77                b.gameObject.SetActive(false);
 78            }
 79        }
 80        #endregion
 81    }
 82    
 83    public void showAbilities(bool show) //show abilities menu 
 84    {
 85        if (show && input_panel.activeSelf == false)
 86        {
 87            input_panel.SetActive(true);
 88
 89            //read abilities from current fighter
 90            abilities = battle.turn.stats.GetAbilities();
 91
 92            i = 0;
 93            foreach(Ability a in abilities)
 94            {
 95                if(i == maxAbilityNumber - 1)
 96                {
 97                    break;
 98                }
 99
100                //show ability_buttons
101                ability_buttons[i].gameObject.SetActive(true);
102                ability_buttons[i].GetComponentInChildren<Text>().text = a.ToString();
103                ability_buttons[i].GetComponent<ActionButton>().setDescription(a.GetDescription());
104                ability_buttons[i].onClick.AddListener(() => selectTarget(a));
105                i++;
106            }
107
108            //add Items entry for everybody
109            ability_buttons[i].gameObject.SetActive(true);
110            ability_buttons[i].GetComponentInChildren<Text>().text = itemsGuiName;
111            ability_buttons[i].GetComponent<ActionButton>().setDescription("Use an item.");
112            ability_buttons[i].onClick.AddListener(() => showItems(true));
113            i++;
114
115            for (; i < maxAbilityNumber; i++)
116            {
117                //disable remaining ability_buttons
118                ability_buttons[i].gameObject.SetActive(false);
119            }
120
121        } else if (!show && input_panel.activeSelf == true)
122        {
123            input_panel.SetActive(false);
124        }
125    }
126
127    
128
129    private void showItems(bool onOff)
130    {
131        if (onOff)
132        {
133            items_panel.SetActive(true);
134            targets_panel.SetActive(false);
135            UI.updateItems(this, gm.inventory, item_buttons);
136        } else
137        {
138            items_panel.SetActive(false);
139        }
140        
141    }
142
143    public override void showTargets(Action ac) //show targets menu for abilities 
144    {
145        targets_panel.SetActive(true);
146        if(ac is Ability)
147        {
148            items_panel.SetActive(false);
149        }
150
151        //set current buttons
152        foreach (Fighter f in battle.fighters)
153        {
154            if (f.fighter_number < 0 || f.fighter_number >= maxTargetNumber)
155            {
156                i = maxTargetNumber - 1;
157            }
158            else
159            {
160                i = f.fighter_number;
161            }
162
163            target_buttons[i].onClick.RemoveAllListeners();
164            target_buttons[i].onClick.AddListener(() => sendInput(ac, f));
165        }
166    }
167
168    private void sendInput(Action ac, Fighter target)
169    {
170        //hide panel
171        targets_panel.SetActive(false);
172        items_panel.SetActive(false);
173        input_panel.SetActive(false);
174
175        //send input
176        battle.getInput(ac, target);
177    }
178
179    private void selectTarget(Ability a) //asks user the target for an ability 
180    {
181        if (a.hasTarget)
182        {
183            UI.changeText(status, battle.turn + ": Select target for " + a.guiName);
184            showTargets(a);
185        } else
186        {
187            sendInput(a, null);
188        }
189    }
190
191    public void showResults(int gold, Inventory items)  //shows drops list at the end of battle 
192    {
193        drops.text = gold + "g\n";
194
195        if (items != null)
196        {
197            foreach (ItemInfo it in items.getContents())
198            {
199                drops.text += "\n" + it.ToString();
200            }
201        }
202        //hide status, show results_panel
203        status_panel.SetActive(false);
204        results_panel.SetActive(true);
205    }
206
207    public void ShowDamage(Fighter f, int damage, bool crit) //shows damage tooltip above a fighter. TODO: handle text color (green for healing)
208    {
209        StartCoroutine(showDamageLate(f, damage, crit, UI.BattleSpeed, UI.BattleSpeed * 0.5f));
210    }
211
212    #region Damage Tooltip stuff
213    private IEnumerator showDamageLate(Fighter f, int damage, bool crit, float offset, float duration)
214    {
215        //get tooltip
216        Text tmptext = f.damage_tooltip.GetComponent<Text>();
217        //wait for attack animation to finish
218        yield return new WaitForSeconds(offset);
219
220        //show tooltip
221        tmptext.text = "";
222        tmptext.color = new Color(1f, 0.5f, 0f);
223        if (damage == 0)
224        {
225            tmptext.text += "Miss!";
226        }
227        else
228        {
229            if(damage < 0)
230            {
231                //target was healed
232                damage *= -1;
233                tmptext.color = Color.green;
234            } else
235            {
236                //target was damaged
237                f.animator.SetTrigger("Damage");
238                if (crit)
239                {
240                    tmptext.color = Color.red;
241                }
242            }
243            tmptext.text += damage;
244        }
245        
246
247        //wait, then hide tooltip
248        yield return new WaitForSeconds(duration);
249        f.damage_tooltip.GetComponent<Text>().text = "";
250
251    }
252    #endregion
253
254}