src/battle/BattleState.cpp

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