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 "Tile.h"
  12 #include "../app/Application.h"
  13 #include "../app/Input.h"
  14
  15 #include <algorithm>
  16
  17 using app::Application;
  18 using app::Input;
  19 using geometry::Vector;
  20
  21 namespace map {
  22
  23 MapState::MapState(const Map *map)
  24 : map(map)
  25 , controlled(0)
  26 , tempTarget(20, 20)
  27 , camera(100, 100, &tempTarget)
  28 , walkingSpeed(64) {
  29
  30 }
  31
  32
  33 void MapState::EnterState(Application &ctrl, SDL_Surface *screen) {
  34         camera.Resize(screen->w, screen->h);
  35 }
  36
  37 void MapState::ExitState(Application &ctrl, SDL_Surface *screen) {
  38
  39 }
  40
  41 void MapState::ResumeState(Application &ctrl, SDL_Surface *screen) {
  42         camera.Resize(screen->w, screen->h);
  43 }
  44
  45 void MapState::PauseState(Application &ctrl, SDL_Surface *screen) {
  46
  47 }
  48
  49 void MapState::Resize(int width, int height) {
  50         camera.Resize(width, height);
  51 }
  52
  53
  54 void MapState::HandleEvents(const Input &input) {
  55         if (!controlled) return;
  56         if (!controlled->TileLock(map->Tileset()->Width(), map->Tileset()->Height())) return;
  57
  58         bool down(false);
  59         if (input.IsDown(Input::PAD_UP)) {
  60                 controlled->SetOrientation(Entity::ORIENTATION_NORTH);
  61                 down = true;
  62         } else if (input.IsDown(Input::PAD_RIGHT)) {
  63                 controlled->SetOrientation(Entity::ORIENTATION_EAST);
  64                 down = true;
  65         } else if (input.IsDown(Input::PAD_DOWN)) {
  66                 controlled->SetOrientation(Entity::ORIENTATION_SOUTH);
  67                 down = true;
  68         } else if (input.IsDown(Input::PAD_LEFT)) {
  69                 controlled->SetOrientation(Entity::ORIENTATION_WEST);
  70                 down = true;
  71         }
  72
  73         if (down) {
  74                 const Tile &tile(map->TileAt(controlled->Position()));
  75                 bool blocked(false);
  76                 switch (controlled->GetOrientation()) {
  77                         case Entity::ORIENTATION_NORTH:
  78                                 blocked = tile.BlocksNorth();
  79                                 break;
  80                         case Entity::ORIENTATION_EAST:
  81                                 blocked = tile.BlocksEast();
  82                                 break;
  83                         case Entity::ORIENTATION_SOUTH:
  84                                 blocked = tile.BlocksSouth();
  85                                 break;
  86                         case Entity::ORIENTATION_WEST:
  87                                 blocked = tile.BlocksWest();
  88                                 break;
  89                 }
  90                 if (!blocked) {
  91                         controlled->SetSpeed(walkingSpeed);
  92                 } else {
  93                         controlled->SetSpeed(0.0f);
  94                 }
  95         } else {
  96                 controlled->SetSpeed(0.0f);
  97         }
  98 }
  99
 100 void MapState::UpdateWorld(float deltaT) {
 101         for (std::vector<Entity *>::iterator i(entities.begin()), end(entities.end()); i != end; ++i) {
 102                 (*i)->Update(deltaT);
 103         }
 104 }
 105
 106 void MapState::Render(SDL_Surface *screen) {
 107         SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 0, 0, 0));
 108
 109         Vector<int> offset(camera.CalculateOffset());
 110         map->Render(screen, offset);
 111
 112         std::sort(entities.begin(), entities.end(), ZCompare);
 113         for (std::vector<Entity *>::iterator i(entities.begin()), end(entities.end()); i != end; ++i) {
 114                 (*i)->Render(screen, offset);
 115         }
 116 }
 117
 118
 119 bool MapState::ZCompare(const Entity *lhs, const Entity *rhs) {
 120         return lhs->Position().Y() < rhs->Position().Y();
 121 }
 122
 123 }