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 "../app/Application.h"
  13 #include "../app/Input.h"
  14 #include "../common/Inventory.h"
  15 #include "../common/Item.h"
  16 #include "../common/Spell.h"
  17 #include "../geometry/operators.h"
  18 #include "../graphics/Sprite.h"
  19
  20 #include <stdexcept>
  21
  22 using app::Application;
  23 using app::Input;
  24 using common::Inventory;
  25 using common::Item;
  26 using common::Spell;
  27 using geometry::Point;
  28 using geometry::Vector;
  29 using graphics::Menu;
  30
  31 using std::vector;
  32
  33 namespace battle {
  34
  35 void BattleState::AddMonster(const Monster &m) {
  36         if (monsters.size() >= monstersLayout->NumPositions()) {
  37                 throw std::overflow_error("too many monsters for layout");
  38         }
  39         monsters.push_back(m);
  40 }
  41
  42 void BattleState::AddHero(const Hero &h) {
  43         if (heroes.size() >= heroesLayout->NumPositions()) {
  44                 throw std::overflow_error("too many heroes for layout");
  45         }
  46         heroes.push_back(h);
  47 }
  48
  49
  50 void BattleState::Resize(int w, int h) {
  51
  52 }
  53
  54
  55 void BattleState::EnterState(Application &ctrl, SDL_Surface *screen) {
  56         monstersLayout->CalculatePositions(background->w, background->h, monsterPositions);
  57         heroesLayout->CalculatePositions(background->w, background->h, heroesPositions);
  58         for (vector<Hero>::size_type i(0), end(heroes.size()); i < end; ++i) {
  59                 spellMenus.push_back(res->spellMenuPrototype);
  60                 LoadSpellMenu(i);
  61                 ikariMenus.push_back(res->ikariMenuPrototype);
  62                 // TODO: insert ikari menu entries
  63                 heroTags[i] = HeroTag(&heroes[i], attackChoices + i, res, HeroTag::Alignment((i + 1) % 2));
  64         }
  65
  66         int tagHeight(attackTypeMenu.Height());
  67         int tagWidth(attackTypeMenu.Width() * 2 + attackTypeMenu.Width() / 2);
  68         int xOffset((BackgroundWidth() - 2 * tagWidth) / 2);
  69         heroTagPositions[0] = Point<int>(xOffset, BackgroundHeight() - 2 * tagHeight);
  70         heroTagPositions[1] = Point<int>(xOffset + tagWidth, BackgroundHeight() - 2 * tagHeight);
  71         heroTagPositions[2] = Point<int>(xOffset, BackgroundHeight() - tagHeight);
  72         heroTagPositions[3] = Point<int>(xOffset + tagWidth, BackgroundHeight() - tagHeight);
  73
  74         itemMenu = res->itemMenuPrototype;
  75         LoadInventory();
  76 }
  77
  78 void BattleState::LoadSpellMenu(vector<Hero>::size_type index) {
  79         spellMenus[index].Clear();
  80         spellMenus[index].Reserve(HeroAt(index).Spells().size());
  81         for (vector<const Spell *>::const_iterator i(HeroAt(index).Spells().begin()), end(HeroAt(index).Spells().end()); i != end; ++i) {
  82                 bool enabled((*i)->CanUseInBattle() && (*i)->Cost() <= HeroAt(index).Mana());
  83                 spellMenus[index].Add((*i)->Name(), *i, enabled, 0, (*i)->Cost());
  84         }
  85 }
  86
  87 void BattleState::LoadInventory() {
  88         const Inventory &inv(*res->inventory);
  89         itemMenu.Clear();
  90         itemMenu.Reserve(inv.MaxItems());
  91         for (int i(0); i < inv.MaxItems(); ++i) {
  92                 const Item *item(inv.ItemAt(i));
  93                 if (item) {
  94                         itemMenu.Add(item->Name(), item, item->CanUseInBattle(), item->MenuIcon(), inv.ItemCountAt(i));
  95                 } else {
  96                         itemMenu.AddEmptyEntry();
  97                 }
  98         }
  99 }
 100
 101 void BattleState::ExitState(Application &ctrl, SDL_Surface *screen) {
 102
 103 }
 104
 105 void BattleState::ResumeState(Application &ctrl, SDL_Surface *screen) {
 106         // TODO: check for victory, defeat or run
 107         // reset attack choices
 108         activeHero = -1;
 109         for (vector<Hero>::size_type i(0), end(heroes.size()); i < end; ++i) {
 110                 attackChoices[i] = AttackChoice(this);
 111         }
 112         ctrl.PushState(new SelectMoveAction(this));
 113 }
 114
 115 void BattleState::PauseState(Application &ctrl, SDL_Surface *screen) {
 116
 117 }
 118
 119
 120 void BattleState::HandleInput(const Input &input) {
 121
 122 }
 123
 124 void BattleState::UpdateWorld(float deltaT) {
 125
 126 }
 127
 128 void BattleState::Render(SDL_Surface *screen) {
 129         Vector<int> offset(CalculateScreenOffset(screen));
 130
 131         RenderBackground(screen, offset);
 132         RenderMonsters(screen, offset);
 133 //      RenderHeroes(screen, offset);
 134         RenderHeroTags(screen, offset);
 135 }
 136
 137 void BattleState::RenderBackground(SDL_Surface *screen, const Vector<int> &offset) {
 138         // black for now
 139         SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 0, 0, 0));
 140         SDL_Rect destRect;
 141         destRect.x = offset.X();
 142         destRect.y = offset.Y();
 143         destRect.w = background->w;
 144         destRect.h = background->h;
 145         SDL_BlitSurface(background, 0, screen, &destRect);
 146 }
 147
 148 void BattleState::RenderMonsters(SDL_Surface *screen, const Vector<int> &offset) {
 149         for (vector<Monster>::size_type i(0), end(monsters.size()); i < end; ++i) {
 150                 monsters[i].Sprite()->DrawCenterBottom(screen, monsterPositions[i] + offset);
 151         }
 152 }
 153
 154 void BattleState::RenderHeroes(SDL_Surface *screen, const Vector<int> &offset) {
 155         for (vector<Hero>::size_type i(0), end(heroes.size()); i < end; ++i) {
 156                 heroes[i].Sprite()->DrawCenterBottom(screen, heroesPositions[i] + offset);
 157         }
 158 }
 159
 160 void BattleState::RenderHeroTags(SDL_Surface *screen, const Vector<int> &offset) {
 161         int tagHeight(attackTypeMenu.Height());
 162         int tagWidth(attackTypeMenu.Width() * 2 + attackTypeMenu.Width() / 2);
 163
 164         for (vector<Hero>::size_type i(0), end(heroes.size()); i < end; ++i) {
 165                 heroTags[i].Render(screen, tagWidth, tagHeight, heroTagPositions[i] + offset, (int)i == activeHero);
 166         }
 167 }
 168
 169 }