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 "../app/Application.h"
  12 #include "../app/Input.h"
  13 #include "../geometry/operators.h"
  14 #include "../graphics/Sprite.h"
  15
  16 #include <stdexcept>
  17
  18 using app::Application;
  19 using app::Input;
  20 using geometry::Point;
  21 using geometry::Vector;
  22
  23 using std::vector;
  24
  25 namespace battle {
  26
  27 void BattleState::AddMonster(const Monster &m) {
  28         if (monsters.size() >= monstersLayout->NumPositions()) {
  29                 throw std::overflow_error("too many monsters for layout");
  30         }
  31         monsters.push_back(m);
  32 }
  33
  34 void BattleState::AddHero(const Hero &h) {
  35         if (heroes.size() >= heroesLayout->NumPositions()) {
  36                 throw std::overflow_error("too many heroes for layout");
  37         }
  38         heroes.push_back(h);
  39 }
  40
  41
  42 void BattleState::Resize(int w, int h) {
  43
  44 }
  45
  46
  47 void BattleState::EnterState(Application &ctrl, SDL_Surface *screen) {
  48         monstersLayout->CalculatePositions(background->w, background->h, monsterPositions);
  49         heroesLayout->CalculatePositions(background->w, background->h, heroesPositions);
  50         for (vector<Hero>::size_type i(0), end(heroes.size()); i < end; ++i) {
  51                 heroTags.push_back(HeroTag(&heroes[i], HeroTag::Alignment((i + 1) % 2)));
  52         }
  53 }
  54
  55 void BattleState::ExitState() {
  56
  57 }
  58
  59
  60 void BattleState::HandleInput(const Input &input) {
  61         if (moveChoice == -1) {
  62                 if (input.IsDown(Input::PAD_UP)) {
  63                         moveMenu.Select(MoveMenu::CHANGE);
  64                 } else if (input.IsDown(Input::PAD_DOWN)) {
  65                         moveMenu.Select(MoveMenu::RUN);
  66                 } else {
  67                         moveMenu.Select(MoveMenu::ATTACK);
  68                 }
  69
  70                 if (input.JustPressed(Input::ACTION_A)) {
  71                         moveChoice = moveMenu.Selected();
  72                 }
  73         } else {
  74                 if (input.IsDown(Input::PAD_UP)) {
  75                         attackTypeMenu.Select(AttackTypeMenu::MAGIC);
  76                 } else if (input.IsDown(Input::PAD_RIGHT)) {
  77                         attackTypeMenu.Select(AttackTypeMenu::DEFEND);
  78                 } else if (input.IsDown(Input::PAD_DOWN)) {
  79                         attackTypeMenu.Select(AttackTypeMenu::IKARI);
  80                 } else if (input.IsDown(Input::PAD_LEFT)) {
  81                         attackTypeMenu.Select(AttackTypeMenu::ITEM);
  82                 } else {
  83                         attackTypeMenu.Select(AttackTypeMenu::SWORD);
  84                 }
  85
  86                 if (input.JustPressed(Input::ACTION_A)) {
  87                         activeHero = (activeHero + 1) % 4;
  88                 }
  89         }
  90 }
  91
  92 void BattleState::UpdateWorld(float deltaT) {
  93
  94 }
  95
  96 void BattleState::Render(SDL_Surface *screen) {
  97         Vector<int> offset(
  98                         (screen->w - background->w) / 2,
  99                         (screen->h - background->h) / 2);
 100
 101         RenderBackground(screen, offset);
 102         RenderMonsters(screen, offset);
 103 //      RenderHeroes(screen, offset);
 104         RenderHeroTags(screen, offset);
 105         if (moveChoice == -1) {
 106                 RenderMoveMenu(screen, offset);
 107         } else {
 108                 RenderAttackTypeMenu(screen, offset);
 109         }
 110 }
 111
 112 void BattleState::RenderBackground(SDL_Surface *screen, const Vector<int> &offset) {
 113         // black for now
 114         SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 0, 0, 0));
 115         SDL_Rect destRect;
 116         destRect.x = offset.X();
 117         destRect.y = offset.Y();
 118         destRect.w = background->w;
 119         destRect.h = background->h;
 120         SDL_BlitSurface(background, 0, screen, &destRect);
 121 }
 122
 123 void BattleState::RenderMonsters(SDL_Surface *screen, const Vector<int> &offset) {
 124         for (vector<Monster>::size_type i(0), end(monsters.size()); i < end; ++i) {
 125                 monsters[i].Sprite()->DrawCenterBottom(screen, monsterPositions[i] + offset);
 126         }
 127 }
 128
 129 void BattleState::RenderHeroes(SDL_Surface *screen, const Vector<int> &offset) {
 130         for (vector<Hero>::size_type i(0), end(heroes.size()); i < end; ++i) {
 131                 heroes[i].Sprite()->DrawCenterBottom(screen, heroesPositions[i] + offset);
 132         }
 133 }
 134
 135 void BattleState::RenderHeroTags(SDL_Surface *screen, const Vector<int> &offset) {
 136         int uiHeight(background->h / 2), uiOffset(uiHeight);
 137         int tagHeight((uiHeight - attackTypeMenu.IconHeight()) / 2);
 138         int tagWidth((background->w - attackTypeMenu.IconWidth()) / 2);
 139
 140         Point<int> tagPosition[4];
 141         tagPosition[0] = Point<int>(0, uiOffset);
 142         tagPosition[1] = Point<int>(tagWidth + attackTypeMenu.IconWidth(), uiOffset);
 143         tagPosition[2] = Point<int>(0, uiOffset + tagHeight + attackTypeMenu.IconHeight());
 144         tagPosition[3] = Point<int>(tagWidth + attackTypeMenu.IconWidth(), uiOffset + tagHeight + attackTypeMenu.IconHeight());
 145
 146         for (vector<HeroTag>::size_type i(0), end(heroTags.size()); i < end; ++i) {
 147                 heroTags[i].Render(screen, tagWidth, tagHeight, tagPosition[i] + offset, i == activeHero);
 148         }
 149 }
 150
 151 void BattleState::RenderAttackTypeMenu(SDL_Surface *screen, const Vector<int> &offset) {
 152         Point<int> position(
 153                         (background->w - attackTypeMenu.Width()) / 2,
 154                         (background->h * 3 / 4) - (attackTypeMenu.Height() / 2));
 155         attackTypeMenu.Render(screen, position + offset);
 156 }
 157
 158 void BattleState::RenderMoveMenu(SDL_Surface *screen, const Vector<int> &offset) {
 159         Point<int> position(
 160                         (background->w - moveMenu.Width()) / 2,
 161                         (background->h * 3 / 4) - (moveMenu.Height() / 2));
 162         moveMenu.Render(screen, position + offset);
 163 }
 164
 165 }