InfiniTime.git

ref: 0.12.0

src/displayapp/screens/Twos.cpp


  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
#include "Twos.h"
#include <lvgl/lvgl.h>
#include <string>
#include <charconv>
#include <array>
#include <vector>
#include <utility>

using namespace Pinetime::Applications::Screens;

extern lv_font_t jetbrains_mono_bold_20;

Twos::Twos(Pinetime::Applications::DisplayApp *app) : Screen(app) {

  // create styles to apply to different valued tiles
  static lv_style_t style_cell1;
  lv_style_copy(&style_cell1, &lv_style_plain);
  style_cell1.body.border.width = 1;
  style_cell1.text.font = &jetbrains_mono_bold_20;
  style_cell1.body.padding.top = 16;
  style_cell1.body.padding.bottom = 16;
  style_cell1.body.main_color = LV_COLOR_MAKE(214, 197, 165);
  style_cell1.body.grad_color = LV_COLOR_MAKE(214, 197, 165);
  style_cell1.text.color = LV_COLOR_BLACK;  

  static lv_style_t style_cell2;
  lv_style_copy(&style_cell2, &style_cell1);
  style_cell2.body.main_color = LV_COLOR_MAKE(209, 146, 92);
  style_cell2.body.grad_color = LV_COLOR_MAKE(209, 146, 92);
  style_cell2.text.color = LV_COLOR_WHITE;

  static lv_style_t style_cell3;
  lv_style_copy(&style_cell3, &style_cell2);
  style_cell3.body.main_color = LV_COLOR_MAKE(246, 94, 59);
  style_cell3.body.grad_color = LV_COLOR_MAKE(246, 94, 59);

  static lv_style_t style_cell4;
  lv_style_copy(&style_cell4, &style_cell3);
  style_cell4.body.main_color = LV_COLOR_MAKE(212, 170, 28);
  style_cell4.body.grad_color = LV_COLOR_MAKE(212, 170, 28);

  // format grid display
  gridDisplay = lv_table_create(lv_scr_act(), nullptr);
  lv_table_set_style(gridDisplay, LV_TABLE_STYLE_CELL1, &style_cell1);
  lv_table_set_style(gridDisplay, LV_TABLE_STYLE_CELL2, &style_cell2);
  lv_table_set_style(gridDisplay, LV_TABLE_STYLE_CELL3, &style_cell3);
  lv_table_set_style(gridDisplay, LV_TABLE_STYLE_CELL4, &style_cell4);
  lv_table_set_col_cnt(gridDisplay, 4);
  lv_table_set_row_cnt(gridDisplay, 4);
  lv_table_set_col_width(gridDisplay, 0, LV_HOR_RES/4);
  lv_table_set_col_width(gridDisplay, 1, LV_HOR_RES/4);
  lv_table_set_col_width(gridDisplay, 2, LV_HOR_RES/4);
  lv_table_set_col_width(gridDisplay, 3, LV_HOR_RES/4);
  lv_obj_align(gridDisplay, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);

  // initialize grid
  for(int row = 0; row < 4; row++) {
    for(int col = 0; col < 4; col++) {
      grid[row][col].value = 0;
      lv_table_set_cell_type(gridDisplay, row, col, 2);
      lv_table_set_cell_align(gridDisplay, row, col, LV_LABEL_ALIGN_CENTER);
    }
  }
  placeNewTile();
  placeNewTile();

  // format score text
  scoreText = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_width(scoreText, LV_HOR_RES);
  lv_label_set_align(scoreText, LV_ALIGN_IN_LEFT_MID);
  lv_obj_align(scoreText, nullptr, LV_ALIGN_IN_TOP_LEFT, 0, 0);
  lv_label_set_text(scoreText, ("Score: " + std::to_string(score)).c_str());
}

Twos::~Twos() {
  lv_obj_clean(lv_scr_act());
}

bool Twos::Refresh() {
  return running;
}

bool Twos::OnButtonPushed() {
  running = false;
  return true;
}

bool Twos::placeNewTile() {
  std::vector< std::pair <int,int> > availableCells; 
  for(int row = 0; row < 4; row++) {
    for(int col = 0; col < 4; col++) {
      if(!grid[row][col].value) {
        availableCells.push_back(std::make_pair(row, col));
      }
    }
  }

  if (availableCells.size() == 0) {
    return false; // game lost
  }
  
  auto it = availableCells.cbegin();
  int random = rand() % availableCells.size();
  std::advance(it, random);
  std::pair <int,int> newCell = *it;

  if ((rand() % 100) < 90) grid[newCell.first][newCell.second].value = 2;
  else grid[newCell.first][newCell.second].value = 4;
  updateGridDisplay(grid);
  return true;
}

bool Twos::tryMerge(Tile grid[][4], int &newRow, int &newCol, int oldRow, int oldCol) {
  if((grid[newRow][newCol].value == grid[oldRow][oldCol].value)) {
    if((newCol != oldCol) || (newRow != oldRow)) {
      if(!grid[newRow][newCol].merged) {
        unsigned int newVal = grid[oldRow][oldCol].value *= 2;
        grid[newRow][newCol].value = newVal;
        score += newVal;
        lv_label_set_text(scoreText, ("Score: " + std::to_string(score)).c_str());
        grid[oldRow][oldCol].value = 0;
        grid[newRow][newCol].merged = true;
        return true;
      }
    }
  }
  return false;
}

bool Twos::tryMove(Tile grid[][4], int newRow, int newCol, int oldRow, int oldCol) {
  if(((newCol >= 0) && (newCol != oldCol)) || ((newRow >= 0) && (newRow != oldRow))) {
    grid[newRow][newCol].value = grid[oldRow][oldCol].value;
    grid[oldRow][oldCol].value = 0;
    return true;
  }
  return false;
}

bool Twos::OnTouchEvent(Pinetime::Applications::TouchEvents event) {
  bool validMove;
  validMove = false;
  for(int row = 0; row < 4; row++) {
    for(int col = 0; col < 4; col++) {
      grid[row][col].merged = false; // reinitialize merge state
    }
  }
  switch(event) {
    case TouchEvents::SwipeLeft:
      for(int col = 1; col < 4; col++) { // ignore tiles already on far left
        for(int row = 0; row < 4; row++) {
          if(grid[row][col].value) {
            int newCol = -1;
            for(int potentialNewCol = col - 1; potentialNewCol >= 0; potentialNewCol--) {
              if(!grid[row][potentialNewCol].value) {
                newCol = potentialNewCol;
              }
              else { // blocked by another tile
                if(tryMerge(grid, row, potentialNewCol, row, col)) validMove = true;
                break;
              }
            }
            if(tryMove(grid, row, newCol, row, col)) validMove = true;
          }
        }
      }
      if (validMove) {
        placeNewTile();
      }
      return true;
    case TouchEvents::SwipeRight:
      for(int col = 2; col >= 0; col--) { // ignore tiles already on far right
        for(int row = 0; row < 4; row++) {
          if(grid[row][col].value) {
            int newCol = -1;
            for(int potentialNewCol = col + 1; potentialNewCol < 4; potentialNewCol++) {
              if(!grid[row][potentialNewCol].value) {
                newCol = potentialNewCol;
              }
              else { // blocked by another tile
                if(tryMerge(grid, row, potentialNewCol, row, col)) validMove = true;
                break;
              }
            }
            if(tryMove(grid, row, newCol, row, col)) validMove = true;
          }
        }
      }
      if (validMove) {
        placeNewTile();
      }
      return true;
    case TouchEvents::SwipeUp:
      for(int row = 1; row < 4; row++) { // ignore tiles already on top
        for(int col = 0; col < 4; col++) {
          if(grid[row][col].value) {
            int newRow = -1;
            for(int potentialNewRow = row - 1; potentialNewRow >= 0; potentialNewRow--) {
              if(!grid[potentialNewRow][col].value) {
                newRow = potentialNewRow;
              }
              else { // blocked by another tile
                if(tryMerge(grid, potentialNewRow, col, row, col)) validMove = true;
                break;
              }
            }
            if(tryMove(grid, newRow, col, row, col)) validMove = true;
          }
        }
      }
      if (validMove) {
        placeNewTile();
      }
      return true;
    case TouchEvents::SwipeDown:
      for(int row = 2; row >=0; row--) { // ignore tiles already on bottom
        for(int col = 0; col < 4; col++) {
          if(grid[row][col].value) {
            int newRow = -1;
            for(int potentialNewRow = row + 1; potentialNewRow < 4; potentialNewRow++) {         
              if(!grid[potentialNewRow][col].value) {
                newRow = potentialNewRow;
              }
              else { // blocked by another tile
                if(tryMerge(grid, potentialNewRow, col, row, col)) validMove = true;
                break;
              }
            }
            if(tryMove(grid, newRow, col, row, col)) validMove = true;
          }
        }
      }
      if (validMove) {
        placeNewTile();
      }
      return true;
    default:
      return false;
  }
  return false;
}

void Twos::updateGridDisplay(Tile grid[][4]) {
  for(int row = 0; row < 4; row++) {
    for(int col = 0; col < 4; col++) {
      if (grid[row][col].value) {
        lv_table_set_cell_value(gridDisplay, row, col, (std::to_string(grid[row][col].value)).c_str());
      }
      else {
        lv_table_set_cell_value(gridDisplay, row, col, "");
      }
      switch (grid[row][col].value) {
        case 0:
        case 2:
        case 4:
          lv_table_set_cell_type(gridDisplay, row, col, 1);
          break;
        case 8:
        case 16:
          lv_table_set_cell_type(gridDisplay, row, col, 2);
          break;
        case 32:
        case 64:
          lv_table_set_cell_type(gridDisplay, row, col, 3);
          break;
        default:
          lv_table_set_cell_type(gridDisplay, row, col, 4);
          break;
      }
    }
  }
}