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InfiniTime/src/displayapp/screens/Twos.cpp

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#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;
}
}
}
}