src/map/MapState.cpp

   1 /*
   2  * MapState.cpp
   3  *
   4  *  Created on: Sep 29, 2012
   5  *      Author: holy
   6  */
   7
   8 #include "MapState.h"
   9
  10 #include "Map.h"
  11 #include "../app/Application.h"
  12 #include "../app/Input.h"
  13
  14 #include <algorithm>
  15
  16 using app::Application;
  17 using app::Input;
  18 using geometry::Vector;
  19
  20 namespace map {
  21
  22 MapState::MapState(const Map *map)
  23 : map(map)
  24 , controlled(0)
  25 , tempTarget(20, 20)
  26 , camera(100, 100, &tempTarget)
  27 , walkingSpeed(64) {
  28
  29 }
  30
  31
  32 void MapState::EnterState(Application &ctrl, SDL_Surface *screen) {
  33         camera.Resize(screen->w, screen->h);
  34 }
  35
  36 void MapState::ExitState(Application &ctrl, SDL_Surface *screen) {
  37
  38 }
  39
  40 void MapState::ResumeState(Application &ctrl, SDL_Surface *screen) {
  41         camera.Resize(screen->w, screen->h);
  42 }
  43
  44 void MapState::PauseState(Application &ctrl, SDL_Surface *screen) {
  45
  46 }
  47
  48 void MapState::Resize(int width, int height) {
  49         camera.Resize(width, height);
  50 }
  51
  52
  53 void MapState::HandleEvents(const Input &input) {
  54         if (!controlled) return;
  55         if (!controlled->TileLock(map->Tileset()->Width(), map->Tileset()->Height())) return;
  56
  57         if (input.IsDown(Input::PAD_UP)) {
  58                 controlled->SetOrientation(Entity::ORIENTATION_NORTH);
  59                 controlled->SetSpeed(walkingSpeed);
  60         } else if (input.IsDown(Input::PAD_RIGHT)) {
  61                 controlled->SetOrientation(Entity::ORIENTATION_EAST);
  62                 controlled->SetSpeed(walkingSpeed);
  63         } else if (input.IsDown(Input::PAD_DOWN)) {
  64                 controlled->SetOrientation(Entity::ORIENTATION_SOUTH);
  65                 controlled->SetSpeed(walkingSpeed);
  66         } else if (input.IsDown(Input::PAD_LEFT)) {
  67                 controlled->SetOrientation(Entity::ORIENTATION_WEST);
  68                 controlled->SetSpeed(walkingSpeed);
  69         } else {
  70                 controlled->SetSpeed(0.0f);
  71         }
  72 }
  73
  74 void MapState::UpdateWorld(float deltaT) {
  75         for (std::vector<Entity *>::iterator i(entities.begin()), end(entities.end()); i != end; ++i) {
  76                 (*i)->Update(deltaT);
  77         }
  78 }
  79
  80 void MapState::Render(SDL_Surface *screen) {
  81         SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 0, 0, 0));
  82
  83         Vector<int> offset(camera.CalculateOffset());
  84         map->Render(screen, offset);
  85
  86         std::sort(entities.begin(), entities.end(), ZCompare);
  87         for (std::vector<Entity *>::iterator i(entities.begin()), end(entities.end()); i != end; ++i) {
  88                 (*i)->Render(screen, offset);
  89         }
  90 }
  91
  92
  93 bool MapState::ZCompare(const Entity *lhs, const Entity *rhs) {
  94         return lhs->Position().Y() < rhs->Position().Y();
  95 }
  96
  97 }