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1 /*
2  * BattleState.cpp
3  *
4  *  Created on: Aug 5, 2012
5  *      Author: holy
6  */
7
8 #include "BattleState.h"
9
10 #include "PartyLayout.h"
11 #include "states/SelectMoveAction.h"
12 #include "states/PerformAttacks.h"
13 #include "../app/Application.h"
14 #include "../app/Input.h"
15 #include "../common/Ikari.h"
16 #include "../common/Inventory.h"
17 #include "../common/Item.h"
18 #include "../common/Spell.h"
19 #include "../geometry/operators.h"
20 #include "../graphics/Frame.h"
21 #include "../graphics/Sprite.h"
22
23 #include <algorithm>
24 #include <stdexcept>
25
26 using app::Application;
27 using app::Input;
28 using common::Inventory;
29 using common::Item;
30 using common::Spell;
31 using geometry::Point;
32 using geometry::Vector;
33 using graphics::Menu;
34
35 using std::vector;
36
37 namespace battle {
38
39 void BattleState::AddMonster(const Monster &m) {
40         if (monsters.size() >= monstersLayout->NumPositions()) {
41                 throw std::overflow_error("too many monsters for layout");
42         }
43         monsters.push_back(m);
44 }
45
46 void BattleState::AddHero(const Hero &h) {
47         if (numHeroes >= 4 || numHeroes >= (int)heroesLayout->NumPositions()) {
48                 throw std::overflow_error("too many heroes for layout");
49         }
50         heroes[numHeroes] = h;
51         ++numHeroes;
52 }
53
54 void BattleState::NextHero() {
55         ++activeHero;
56         while (activeHero < numHeroes && heroes[activeHero].Health() == 0) {
57                 ++activeHero;
58         }
59 }
60
61 void BattleState::SwapHeroes(int lhs, int rhs) {
62         if (lhs < 0 || lhs >= numHeroes || rhs < 0 || rhs >= numHeroes || lhs == rhs) return;
63         std::swap(heroes[lhs], heroes[rhs]);
64 }
65
66
67 void BattleState::Resize(int w, int h) {
68
69 }
70
71
72 void BattleState::EnterState(Application &ctrl, SDL_Surface *screen) {
73         monstersLayout->CalculatePositions(background->w, background->h, monsterPositions);
74         heroesLayout->CalculatePositions(background->w, background->h, heroesPositions);
75         for (int i(0); i < 4; ++i) {
76                 spellMenus[i] = res->spellMenuPrototype;
77                 LoadSpellMenu(i);
78                 ikariMenus[i] = res->ikariMenuPrototype;
79                 LoadIkariMenu(i);
80                 heroTags[i] = HeroTag(this, i);
81                 smallHeroTags[i] = SmallHeroTag(this, i);
82         }
83
84         int tagHeight(attackTypeMenu.Height());
85         int tagWidth(attackTypeMenu.Width() * 2 + attackTypeMenu.Width() / 2);
86         int xOffset((BackgroundWidth() - 2 * tagWidth) / 2);
87         heroTagPositions[0] = Point<int>(xOffset, BackgroundHeight() - 2 * tagHeight);
88         heroTagPositions[1] = Point<int>(xOffset + tagWidth, BackgroundHeight() - 2 * tagHeight);
89         heroTagPositions[2] = Point<int>(xOffset, BackgroundHeight() - tagHeight);
90         heroTagPositions[3] = Point<int>(xOffset + tagWidth, BackgroundHeight() - tagHeight);
91
92         tagHeight = res->normalFont->CharHeight() * 4 + res->smallHeroTagFrame->BorderHeight() * 2;
93         tagWidth = res->normalFont->CharWidth() * 6 + res->smallHeroTagFrame->BorderWidth() * 2;
94         xOffset = (BackgroundWidth() - 4 * tagWidth) / 2;
95         int yOffset(BackgroundHeight() - tagHeight);
96         smallHeroTagPositions[0] = Point<int>(xOffset, yOffset);
97         smallHeroTagPositions[1] = Point<int>(xOffset + 2 * tagWidth, yOffset);
98         smallHeroTagPositions[2] = Point<int>(xOffset + tagWidth, yOffset);
99         smallHeroTagPositions[3] = Point<int>(xOffset + 3 * tagWidth, yOffset);
100
101         itemMenu = res->itemMenuPrototype;
102         LoadInventory();
103 }
104
105 void BattleState::LoadSpellMenu(vector<Hero>::size_type index) {
106         spellMenus[index].Clear();
107         spellMenus[index].Reserve(HeroAt(index).Spells().size());
108         for (vector<const Spell *>::const_iterator i(HeroAt(index).Spells().begin()), end(HeroAt(index).Spells().end()); i != end; ++i) {
109                 bool enabled((*i)->CanUseInBattle() && (*i)->Cost() <= HeroAt(index).Mana());
110                 spellMenus[index].Add((*i)->Name(), *i, enabled, 0, (*i)->Cost());
111         }
112 }
113
114 void BattleState::LoadIkariMenu(vector<Hero>::size_type index) {
115         ikariMenus[index].Clear();
116         ikariMenus[index].Reserve(6);
117
118         if (HeroAt(index).HasWeapon()) {
119                 ikariMenus[index].Add(
120                                 HeroAt(index).Weapon()->Name(),
121                                 HeroAt(index).Weapon(),
122                                 HeroAt(index).Weapon()->HasIkari() && HeroAt(index).Weapon()->GetIkari()->Cost() <= HeroAt(index).IP(),
123                                 res->weaponMenuIcon,
124                                 0,
125                                 HeroAt(index).Weapon()->HasIkari() ? HeroAt(index).Weapon()->GetIkari()->Name() : "");
126         } else {
127                 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->weaponMenuIcon);
128         }
129
130         if (HeroAt(index).HasArmor()) {
131                 ikariMenus[index].Add(
132                                 HeroAt(index).Armor()->Name(),
133                                 HeroAt(index).Armor(),
134                                 HeroAt(index).Armor()->HasIkari() && HeroAt(index).Armor()->GetIkari()->Cost() <= HeroAt(index).IP(),
135                                 res->armorMenuIcon,
136                                 0,
137                                 HeroAt(index).Armor()->HasIkari() ? HeroAt(index).Armor()->GetIkari()->Name() : "");
138         } else {
139                 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->armorMenuIcon);
140         }
141
142         if (HeroAt(index).HasShield()) {
143                 ikariMenus[index].Add(
144                                 HeroAt(index).Shield()->Name(),
145                                 HeroAt(index).Shield(),
146                                 HeroAt(index).Shield()->HasIkari() && HeroAt(index).Shield()->GetIkari()->Cost() <= HeroAt(index).IP(),
147                                 res->shieldMenuIcon,
148                                 0,
149                                 HeroAt(index).Shield()->HasIkari() ? HeroAt(index).Shield()->GetIkari()->Name() : "");
150         } else {
151                 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->shieldMenuIcon);
152         }
153
154         if (HeroAt(index).HasHelmet()) {
155                 ikariMenus[index].Add(
156                                 HeroAt(index).Helmet()->Name(),
157                                 HeroAt(index).Helmet(),
158                                 HeroAt(index).Helmet()->HasIkari() && HeroAt(index).Helmet()->GetIkari()->Cost() <= HeroAt(index).IP(),
159                                 res->helmetMenuIcon,
160                                 0,
161                                 HeroAt(index).Helmet()->HasIkari() ? HeroAt(index).Helmet()->GetIkari()->Name() : "");
162         } else {
163                 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->helmetMenuIcon);
164         }
165
166         if (HeroAt(index).HasRing()) {
167                 ikariMenus[index].Add(
168                                 HeroAt(index).Ring()->Name(),
169                                 HeroAt(index).Ring(),
170                                 HeroAt(index).Ring()->HasIkari() && HeroAt(index).Ring()->GetIkari()->Cost() <= HeroAt(index).IP(),
171                                 res->ringMenuIcon,
172                                 0,
173                                 HeroAt(index).Ring()->HasIkari() ? HeroAt(index).Ring()->GetIkari()->Name() : "");
174         } else {
175                 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->ringMenuIcon);
176         }
177
178         if (HeroAt(index).HasJewel()) {
179                 ikariMenus[index].Add(
180                                 HeroAt(index).Jewel()->Name(),
181                                 HeroAt(index).Jewel(),
182                                 HeroAt(index).Jewel()->HasIkari() && HeroAt(index).Jewel()->GetIkari()->Cost() <= HeroAt(index).IP(),
183                                 res->jewelMenuIcon,
184                                 0,
185                                 HeroAt(index).Jewel()->HasIkari() ? HeroAt(index).Jewel()->GetIkari()->Name() : "");
186         } else {
187                 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->jewelMenuIcon);
188         }
189 }
190
191 void BattleState::LoadInventory() {
192         const Inventory &inv(*res->inventory);
193         itemMenu.Clear();
194         itemMenu.Reserve(inv.MaxItems());
195         for (int i(0); i < inv.MaxItems(); ++i) {
196                 const Item *item(inv.ItemAt(i));
197                 if (item) {
198                         itemMenu.Add(item->Name(), item, item->CanUseInBattle(), item->MenuIcon(), inv.ItemCountAt(i));
199                 } else {
200                         itemMenu.AddEmptyEntry();
201                 }
202         }
203         ClearAllAttacks();
204 }
205
206 void BattleState::ExitState(Application &ctrl, SDL_Surface *screen) {
207
208 }
209
210 void BattleState::ResumeState(Application &ctrl, SDL_Surface *screen) {
211         // TODO: check for victory or defeat
212         if (ranAway) {
213                 ctrl.PopState(); // quit the battle scene
214                 return;
215         }
216         if (AttackSelectionDone()) {
217                 ctrl.PushState(new PerformAttacks(this));
218         } else {
219                 ctrl.PushState(new SelectMoveAction(this));
220         }
221 }
222
223 void BattleState::PauseState(Application &ctrl, SDL_Surface *screen) {
224
225 }
226
227
228 void BattleState::ClearAllAttacks() {
229         activeHero = -1;
230         for (int i(0); i < numHeroes; ++i) {
231                 attackChoices[i] = AttackChoice(this);
232         }
233 }
234
235
236 void BattleState::HandleEvents(const Input &input) {
237
238 }
239
240 void BattleState::UpdateWorld(float deltaT) {
241
242 }
243
244 void BattleState::Render(SDL_Surface *screen) {
245         Vector<int> offset(CalculateScreenOffset(screen));
246         RenderBackground(screen, offset);
247         RenderMonsters(screen, offset);
248 }
249
250 void BattleState::RenderBackground(SDL_Surface *screen, const Vector<int> &offset) {
251         // black for now
252         SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 0, 0, 0));
253         SDL_Rect destRect;
254         destRect.x = offset.X();
255         destRect.y = offset.Y();
256         destRect.w = background->w;
257         destRect.h = background->h;
258         SDL_BlitSurface(background, 0, screen, &destRect);
259 }
260
261 void BattleState::RenderMonsters(SDL_Surface *screen, const Vector<int> &offset) {
262         for (vector<Monster>::size_type i(0), end(monsters.size()); i < end; ++i) {
263                 monsters[i].Sprite()->DrawCenterBottom(screen, monsterPositions[i] + offset);
264         }
265 }
266
267 void BattleState::RenderHeroes(SDL_Surface *screen, const Vector<int> &offset) {
268         for (int i(0); i < numHeroes; ++i) {
269                 if (HeroAnimationAt(i).Running()) {
270                         HeroAnimationAt(i).DrawCenterBottom(screen, heroesPositions[i] + offset);
271                 } else {
272                         int row(heroes[i].Health() > 0 ? 0 : 2);
273                         heroes[i].Sprite()->DrawCenterBottom(screen, heroesPositions[i] + offset, 1, row);
274                 }
275         }
276 }
277
278 void BattleState::RenderHeroTags(SDL_Surface *screen, const Vector<int> &offset) {
279         int tagHeight(attackTypeMenu.Height());
280         int tagWidth(attackTypeMenu.Width() * 2 + attackTypeMenu.Width() / 2);
281
282         for (int i(0); i < numHeroes; ++i) {
283                 heroTags[i].Render(screen, tagWidth, tagHeight, heroTagPositions[i] + offset, (int)i == activeHero);
284         }
285 }
286
287 void BattleState::RenderSmallHeroTags(SDL_Surface *screen, const Vector<int> &offset) {
288         int tagHeight(res->normalFont->CharHeight() * 4 + res->smallHeroTagFrame->BorderHeight() * 2);
289         int tagWidth(res->normalFont->CharWidth() * 6 + res->smallHeroTagFrame->BorderWidth() * 2);
290
291         SDL_Rect rect;
292         rect.x = offset.X();
293         rect.y = offset.Y() + BackgroundHeight() - tagHeight;
294         rect.w = BackgroundWidth();
295         rect.h = tagHeight;
296         SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, 0, 0, 0));
297         rect.y += res->normalFont->CharHeight() / 8;
298         rect.h -= res->normalFont->CharHeight() / 4;
299         SDL_FillRect(screen, &rect, res->heroesBgColor);
300
301         for (int i(0); i < numHeroes; ++i) {
302                 smallHeroTags[i].Render(screen, tagWidth, tagHeight, smallHeroTagPositions[i] + offset);
303         }
304 }
305
306 }