src/battle/states/SelectTarget.cpp

   1 /*
   2  * SelectTarget.cpp
   3  *
   4  *  Created on: Aug 9, 2012
   5  *      Author: holy
   6  */
   7
   8 #include "SelectTarget.h"
   9
  10 #include "SelectAttackType.h"
  11 #include "../BattleState.h"
  12 #include "../../app/Application.h"
  13 #include "../../app/Input.h"
  14 #include "../../geometry/operators.h"
  15 #include "../../geometry/Point.h"
  16
  17 using app::Application;
  18 using app::Input;
  19 using geometry::Point;
  20 using geometry::Vector;
  21 using std::vector;
  22
  23 namespace battle {
  24
  25 void SelectTarget::EnterState(Application &c, SDL_Surface *screen) {
  26         ctrl = &c;
  27 }
  28
  29 void SelectTarget::ExitState(Application &c, SDL_Surface *screen) {
  30         ctrl = 0;
  31 }
  32
  33 void SelectTarget::ResumeState(Application &ctrl, SDL_Surface *screen) {
  34
  35 }
  36
  37 void SelectTarget::PauseState(Application &ctrl, SDL_Surface *screen) {
  38
  39 }
  40
  41
  42 void SelectTarget::Resize(int width, int height) {
  43
  44 }
  45
  46
  47 void SelectTarget::HandleEvents(const Input &input) {
  48         if (input.JustPressed(Input::ACTION_A)) {
  49                 if (selection->CurrentIsSelected()) {
  50                         ctrl->PopState(); // return control to parent
  51                 } else {
  52                         selection->Select();
  53                         if (selection->SelectSingle()) {
  54                                 ctrl->PopState(); // return control to parent
  55                         }
  56                 }
  57         }
  58         if (input.JustPressed(Input::ACTION_B)) {
  59                 if (selection->CurrentIsSelected()) {
  60                         selection->Unselect();
  61                 } else {
  62                         selection->UnselectAll();
  63                         ctrl->PopState(); // return control to parent
  64                 }
  65         }
  66
  67         if (input.JustPressed(Input::PAD_UP)) {
  68                 selection->MoveUp();
  69         }
  70         if (input.JustPressed(Input::PAD_RIGHT)) {
  71                 selection->MoveRight();
  72         }
  73         if (input.JustPressed(Input::PAD_DOWN)) {
  74                 selection->MoveDown();
  75         }
  76         if (input.JustPressed(Input::PAD_LEFT)) {
  77                 selection->MoveLeft();
  78         }
  79 }
  80
  81 void SelectTarget::UpdateWorld(float deltaT) {
  82
  83 }
  84
  85 void SelectTarget::Render(SDL_Surface *screen) {
  86         Vector<int> offset(battle->CalculateScreenOffset(screen));
  87         parent->Render(screen);
  88         RenderCursors(screen, offset);
  89 }
  90
  91 void SelectTarget::RenderCursors(SDL_Surface *screen, const geometry::Vector<int> &offset) {
  92         // TODO: this should be related to the enemy's width
  93         // offset the cursor by 1/8th to the left and bottom
  94         Vector<int> cursorOffset(cursorIcon->Width() / -8, cursorIcon->Height() / 8);
  95         Vector<int> indicatorOffset(0, 0);
  96         vector<Point<int> > positions;
  97         if (selection->TargetsEnemies()) {
  98                 for (vector<Point<int> >::const_iterator i(battle->MonsterPositions().begin()), end(battle->MonsterPositions().end()); i != end; ++i) {
  99                         positions.push_back(*i);
 100                 }
 101         } else {
 102                 for (int i(0), end(battle->NumHeroes()); i < end; ++i) {
 103                         Vector<int> positionCorrection(cursorIcon->Width() / 2, battle->HeroTagAt(i).HeroSprite()->Height() - cursorIcon->Height() / 2);
 104                         // indicator offsets are inverted for heroes
 105                         positionCorrection -= cursorOffset;
 106                         positions.push_back(battle->HeroTagPositionAt(i) + battle->HeroTagAt(i).HeroOffset() + positionCorrection);
 107                 }
 108         }
 109         if (flipFlop) {
 110                 for (vector<Point<int> >::size_type i(0); i < positions.size(); ++i) {
 111                         if (selection->IsSelected(i)) {
 112                                 cursorIcon->DrawTopRight(screen, positions[i] + offset);
 113                         }
 114                 }
 115         }
 116         flipFlop = !flipFlop;
 117         cursorIcon->DrawTopRight(screen, positions[selection->Current()] + offset + cursorOffset);
 118 }
 119
 120 }